STMICROELECTRONICS TDA7513T

TDA7513T
Single chip FM/AM tuner
with stereo decoder and audio processor
Features
■
AM/FM tuner for car radio
■
Integrated tuning PLL
■
Variable bandwith FM IF filter (ISS)
■
Fully integrated FM stereo decoder
■
fully integrated FM noise blanker
■
Highly integrated audio processor
Description
LQFP80
The TDA7513T is the first device for car-radio
applications that combines full RF front end
functions with audio-processing capabilities.
As far as FM and AM functions are concerned ,
the TDA7513T features front end processing,
including the digital tuning PLL, IF processing
with demodulation and variable bandwidth IF
filtering (ISS), stop station and quality detection
functions, FM stereo decoding by means of a fully
integrated, adjustment free, dedicated PLL and,
finally, FM noise blanking. The FM stereo decoder
and noise blanker functions are realized entirely
without external components.
The audio processor section comprises input
selectors for two quasi-differential external
sources, volume control, tone control (bass, mid
Table 1.
April 2007
and treble), balance and fading control to drive
four output channels. A soft mute function and an
RDS mute function are included to handle source
change as well as RDS AF search without abrupt
changes in the audio level.
Most of the parameters in the front-end section
are I2C bus-driven and therefore under the control
of the car radio maker. The I2C bus allows
furthermore the user to realize the full electric
alignment of all the external coils, therefore
removing the need for hand-made or mechanical
adjustments.
Device summary
Part number
Package
Packing
TDA7513T
LQFP80
Tray
E-TDA7513T
LQFP80
Tray
Rev 2
1/84
www.st.com
1
Contents
TDA7513T
Contents
1
Block diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2
Electrical characteristcs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3
2.1
FM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.2
AM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2.3
Oscillators (VCC = 8V; Tamb =25°C) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
2.4
Stereo decoder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
2.5
Noise blanker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
2.6
Multipath and quality detectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
3.1
2/84
FM section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
3.1.1
Mixer1, AGC and 1st IF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
3.1.2
Mixer2, limiter and demodulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
3.1.3
Quality detection and ISS field strength . . . . . . . . . . . . . . . . . . . . . . . . . 27
3.1.4
Adjacent channel detector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
3.1.5
Multipath detector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
3.1.6
450kHz IF narrow bandpass filter (ISS filter) . . . . . . . . . . . . . . . . . . . . . 28
3.1.7
Deviation detector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
3.1.8
ISS switch logic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
3.1.9
Soft mute control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
3.1.10
Station detector and seek stop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
3.2
AM section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
3.3
PLL and IF counter section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
3.3.1
PLL frequency synthesizer block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
3.3.2
Frequency generation for phase comparison . . . . . . . . . . . . . . . . . . . . 30
3.3.3
Three state phase comparator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
3.3.4
Charge pump current generator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
3.3.5
Low noise CMOS op-amp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
3.3.6
IF counter block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
3.3.7
The IF counter mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
3.3.8
Sampling timer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
3.3.9
Intermediate frequency main counter . . . . . . . . . . . . . . . . . . . . . . . . . . 31
TDA7513T
Contents
3.3.10
3.4
3.5
3.6
Adjustment of the measurement time and frequency window . . . . . . . . 32
Audio processor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
3.4.1
Input multiplexer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
3.4.2
Input stages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
3.4.3
AutoZero . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
3.4.4
AutoZero remain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
3.4.5
Softmute . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
3.4.6
BASS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
3.4.7
Attenuation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
3.4.8
Center frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
3.4.9
Quality factors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
3.4.10
DC Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
3.4.11
MID . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
3.4.12
Attenuation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
3.4.13
Center frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
3.4.14
Quality factor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
3.4.15
TREBLE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
3.4.16
Attenuation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
3.4.17
Center frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
3.4.18
AC coupling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
3.4.19
Speaker attenuator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Stereo decoder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
3.5.1
Stereo decoder mute . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
3.5.2
Stereo decoder Input stage, Ingain + Infilter . . . . . . . . . . . . . . . . . . . . . 35
3.5.3
Demodulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
3.5.4
De-emphasis and highcut. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
3.5.5
PLL and pilot tone detector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
3.5.6
Fieldstrength control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
3.5.7
LEVEL input and gain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
3.5.8
Stereoblend control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
3.5.9
Highcut control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
3.5.10
Noise blanker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
3.5.11
Trigger path . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
3.5.12
Automatic noise controlled threshold adjustment (ATC) . . . . . . . . . . . . 37
Automatic threshold control mechanism . . . . . . . . . . . . . . . . . . . . . . . . . 37
3.6.1
Automatic threshold control by the stereoblend voltage . . . . . . . . . . . . 37
3.6.2
Over deviation detector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
3/84
Contents
TDA7513T
3.7
Multipath detector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
3.7.1
3.8
Quality detector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
3.8.1
3.9
4
Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
AF search control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
I2C bus interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
3.9.1
Data transition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
3.9.2
Start condition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
3.9.3
Stop Condition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
3.9.4
Acknowledge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
3.9.5
Data transfer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
3.9.6
Device addressing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
3.9.7
Write operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
3.9.8
Read operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Software specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
4.1
Tuner section address organization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
4.2
Tuner section subaddresses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
4.3
Stereodecoder and audioprocessor section . . . . . . . . . . . . . . . . . . . . . . . 69
4.4
Subaddress organization (stereodecoder and audioprocessor section) . 70
5
Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
6
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
4/84
TDA7513T
List of tables
List of tables
Table 1.
Table 2.
Table 3.
Table 4.
Table 5.
Table 6.
Table 7.
Table 8.
Table 9.
Table 10.
Table 11.
Table 12.
Table 13.
Table 14.
Table 15.
Table 16.
Table 17.
Table 18.
Table 19.
Table 20.
Table 21.
Table 22.
Table 23.
Table 24.
Table 25.
Table 26.
Table 27.
Table 28.
Table 29.
Table 30.
Table 31.
Table 32.
Table 33.
Table 34.
Table 35.
Table 36.
Table 37.
Table 38.
Table 39.
Table 40.
Table 41.
Table 42.
Table 43.
Table 44.
Table 45.
Table 46.
Table 47.
Table 48.
Device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Mixer1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Front end adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
AGC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
IF Amplifier 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
IF Amplifier 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Field-strength meter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
MPX output (output at TUNEROUT) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Field strength stop station. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Soft mute . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
ISS filter (FMIF1AMP1 gain must be set to 14dB) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Mixer1 (Input at AMMIX1IN+, no mod) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
AGC1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Mixer2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
IF2 amplifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
AGC2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Audio output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Field strength meter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
VCO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
XTAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Audio processor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Stereo decoder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Noise blanker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Multipath and quality detectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
ISS Modes 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
ISS Modes 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Address organization (tuner section) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Address organization addresses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Address organization subaddress . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Address organization read mode: ISS outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Subaddress organisation (tuner section) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Subaddress 1: PLL lock detector, FM mode and test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Subaddress 2: PLL counter 1 (LSB) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Subaddress 3: PLL counter 2 (MSB) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Subaddress 4: reference counter 1 (LSB) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Subaddress 5: Reference counter 2 (MSB) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Subaddress 6: FM antenna adjustment and FM mute depth . . . . . . . . . . . . . . . . . . . . . . . 52
Subaddress 7: FM RF adjustment AM prescaler and seek . . . . . . . . . . . . . . . . . . . . . . . . 53
Subaddress 8: IF counter control 1 and AM S.S. threshold . . . . . . . . . . . . . . . . . . . . . . . . 53
Subaddress 9: If counter control 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Subaddress 10: IF counter reference (LSB) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Subaddress 11: IF counter reference (MSB) and IF counter mode select . . . . . . . . . . . . . 55
Subaddress 12: AM IF amplifier gain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Subaddress 13: Demodulator fine adjust and noise blanker, MP qual test . . . . . . . . . . . . 57
Subaddress 14: Quality detection adjacent channel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
5/84
List of tables
Table 49.
Table 50.
Table 51.
Table 52.
Table 53.
Table 54.
Table 55.
Table 56.
Table 57.
Table 58.
Table 59.
Table 60.
Table 61.
Table 62.
Table 63.
Table 64.
Table 65.
Table 66.
Table 67.
Table 68.
Table 69.
Table 70.
Table 71.
Table 72.
Table 73.
Table 74.
Table 75.
Table 76.
Table 77.
Table 78.
Table 79.
Table 80.
Table 81.
Table 82.
Table 83.
Table 84.
Table 85.
Table 86.
6/84
TDA7513T
Subaddress 15: Quality detection multipath and Smeter test . . . . . . . . . . . . . . . . . . . . . . . 58
Subaddress 16: Quality detection deviation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Subaddress 17: Quality ISS filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Subaddress 18: PLL rest, 456KHz VCO adjust start, ISS MP Gain and SD out mode . . . 61
Subaddress 19: 456KHz VCO adjustment (manual mode) . . . . . . . . . . . . . . . . . . . . . . . . 61
Subaddress 20: FM stop station and soft mute threshold . . . . . . . . . . . . . . . . . . . . . . . . . 62
Subaddress 21: Adjacent channel mute . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Subaddress 22: FM Smeter Sider and AM Smeter time constant . . . . . . . . . . . . . . . . . . . 63
Subaddress 23: IFT Adjust . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Subaddress 24: XTAL and FM IF AMP 2 Gain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Subaddress 25: FM NAGC key and AM WAGC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Subaddress 26: AM NAGC key and FM demod ref frequency test . . . . . . . . . . . . . . . . . . 65
Subaddress 27: ISS tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Subaddress 28: ISS tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Subaddress 29: Tuner and Smeter tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Subaddress 30: Adjacent channel mute . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Subaddress 31: Adjacent channel and multipath gain, weak field ISS threshold . . . . . . . . 68
Address organisation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Stereodecoder and audioprocessor section SUBADDRESS . . . . . . . . . . . . . . . . . . . . . . . 70
Stereodecoder and audioprocessor section READ MODE. . . . . . . . . . . . . . . . . . . . . . . . . 70
Stereodecoder and audioprocessor section ADDRESS . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
Subaddress 0: Source selector, in-gain, sSpeaker coupling . . . . . . . . . . . . . . . . . . . . . . . 70
Subaddress 1,4,5,6,7: Volume Spkr atten. LF, RF, LR, RR . . . . . . . . . . . . . . . . . . . . . . . . 71
Subaddress 2: Treble . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Subaddress 3: Bass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Subaddress 4: Speaker attenuator left front . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Subaddress 8: Soft mute, bass, noise blanker time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Subaddress 9: Stereo decoder mute . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Subaddress 10: Noise blanker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Subaddress 11: High cut, multipath influence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
Subaddress 12: Fieldstrength control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
Subaddress 13: Noise rectifier discharge resistor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
Subaddress 14: Roll-off compensation, level gain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Subaddress 15: Test byte . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Subaddress 16: Multipath test, AMHCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
Subaddress 17: Mid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
Subaddress 18: Stereo blend . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
TDA7513T
List of figures
List of figures
Figure 1.
Figure 2.
Figure 3.
Figure 4.
Figure 5.
Figure 6.
Figure 7.
Figure 8.
Figure 9.
Figure 10.
Figure 11.
Figure 12.
Figure 13.
Figure 14.
Figure 15.
Figure 16.
Figure 17.
Figure 18.
Figure 19.
Figure 20.
Figure 21.
Tuner section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Stereo decoder / audio processor section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Pin connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Softmute timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Bass control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Bass center . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Bass quality factors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Bass normal and DC mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Mid control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Mid center frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Mid Q factor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Treble control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Treble center frequencies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Block diagram of the stereo decoder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Signal during stereo decoder’s softmute . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Internal stereo blend characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Relationship between unadjusted and adjusted filtered field strength signals . . . . . . . . . . 45
Highcut characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Noise blanker block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Multipath detector block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
LQFP80 mechanical data & package dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
7/84
Block diagrams
Block diagrams
TUNVCC
TUNGND
SMETER
SMETERTC
FMMIX2IN+
FMMIX2IN-
FMIFAMP2OUT
IF1GND
IF1VCC
FMIFAMP2IN
MIX1OUT-
MIX1OUT+
FMIFAMP1OUT
Tuner section
FMNAGCIN
Figure 1.
FMIFAMP1IN/
AMMIX2IN
FMIFAMPREF/
AMIF2REF
1
TDA7513T
fFS
FMAGCIOUT
FMAGCVOUT
fFS
FM
AGC
IFT1ADJ
FMWAGCIN
FMMIX1IN+
FMMIX1IN-
AMP1
AMP2
FM
FM
SMETER
FILTER
FM
MIX2
FM
MIX1
sfFS
SMETER
SLIDER
5V
REF
VREF5V
ISSTC
DEVTC
ufFS
TUNQUALITY
ISS
RFGND
VCOB
VCOE
VCO
ufFS
OSCVCC
OSCGND
DIV
4,6,8,10
AMMIX1IN+
AMMIX1IN-
AMAGC1IOUT
AMAGC1VOUT
+
AdjChDet
450K
10.7M
MPathDet
AM/
FM
FS
METER
AM
MIX1
AM
AGC1
AdjChDet
OverDevDet
fFS
ufFS
SoftMute
QUALITY
450K
fFS
MUTE
FMMUTETC
AMP
FM
DEMOD
TUNEROUT
AUDIO
DEMGND
AMAG1CTC
FMDEMREF
LFREF
PLL
LFHC
IFC
400K
450K
10.25M
LFIN
LFOUT
SD
SD
ufFS
DIGVCC
AMP2
FM
FE
ADJ
AM
AM
MIX2
AM
AGC2
AM
DEM
SDAint
I 2C
BUS
AMIF2AMPREF
AMIF2AMPREF
AMMIX2OUT
SCLi nt
ACKint
AMAGC2TC
IFT2ADJ
PLLVCC
PLLGND
FMRFADJ
XTAL
OSC
XTALD
FMANTADJ
XTALG
DIGGND
Figure 2.
fFS
10.25M
Stereo decoder / audio processor section
AM/FM L
PILOT
CANC
IN
TUNERIN
GAIN
ROLL-OF
COMP
HIGH
CUT
DEMOD
ST.BLEND
AM/FM R
RDSMUTE
PILOT DETECTOR
PLL
RDSMUTE
stereo
RDSMUTE
sfSF
SDA
SCL
I 2C
BUS
ST. BLEND HI-CUT
CONTROL
LEVEL
ADJUST
SDAint
Level Det
SCLint
ACKint
DevDet
Noise Det
NOISE
BLANKER
MPATHTC
MPATH
DET
DischTime
i
Const
QUALITY
DET
IN1L
IN1COM
GAIN
IN2L
SOFT
MUTE
IN2COM
IN
AM/FM R
mute
APGND
3V
REF
APVCC
VOL
AUTO
ZERO
GAIN
AUDIOMUTE
AM/FM L
VREF3V
IN2R
QUALITY
ACLOUT
ACLIN
AUTO
ZERO
IN
IN1R
8/84
ufFS
TREBLE
MID
SPKR
OUTRL
SPKR
OUTFL
SPKR
OUTFR
SPKR
OUTRR
ACRIN
ACROUT
BASS
TDA7513T
Block diagrams
FMDEMREF
DEMGND
SMETERTC
AMIF2AMPREF
AMIF2AMPIN
AMAGC2TC
AMMIX2OUT
FMMIX2IN2
FMMIX2IN1
FMIFAMP2IN
FMIFAMP2OUT
TUNVCC
FMIFAMPREF
FMIFAMP1OUT
FMIFAMP1IN
FMNAGCIN
IFGND
MIX1OUT2
MIX1OUT1
Pin connections
IFVCC
Figure 3.
80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61
VREF5V
1
60
MULTIPATHTC
TUNGND
2
59
RDSMUTE
AMMIX1IN1
3
58
AUDIOMUTE
AMMIX1IN2
4
57
QUALITY
AMAGC1TC
5
56
SMETER
AMAGC1IOUT
6
55
SD
AMAGC1VOUT
7
54
SCL
FMMIX1IN1
8
53
SDA
RFGND
9
52
FMMUTETC
FMMIX1IN2
10
51
TUNEROUT
FMAGCIOUT
11
50
TUNERIN
FMWAGCIN
12
49
IN1L
FMAGCVOUT
13
48
IN1COM
FMANTADJ
14
47
IN1R
FMRFANDJ
15
46
IN2R
OSCGND
16
45
IN2COM
VCOE
17
44
IN2L
VCOB
18
43
ACLOUT
OSCVCC
19
42
ACLIN
LFOUT
20
41
ACROUT
Table 2.
ACRIN
OUTFL
OUTFR
OUTRL
OUTRR
APVCC
APGND
DEVTC
VREF3V
ISSTC
TUNQUALITY
DIGGND
DIGVCC
XTALD
XTALG
PLLGND
PLLVCC
LFHC
LFIN
LFREF
21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40
D03AU1527
Pin description
Pin
Pin name
Pin function
1
VREF5V
5V reference
2
TUNGND
tuner general ground
3
AMMIX1IN1
am mix1 input
4
AMMIX1IN2
am mix1 input
5
AMAGC1TC
am agc1 filter capacitor
6
AMAGC1IOUT
am agc1 current output
7
AMAGC1VOUT
am agc1 voltage output
8
FMMIX1IN1
9
RFGND
10
FMMIX1IN2
11
FMAGCIOUT
fm agc current output
12
FMWAGCIN
fm agc RF input
13
FMAGCVOUT
fm mix1 input
rf ground
fm mix1 input
fm agc voltage output
9/84
Block diagrams
Table 2.
10/84
TDA7513T
Pin description (continued)
Pin
Pin name
Pin function
14
FMANTADJ
fm antenna filter adjustment
15
FMRFANDJ
fm rf filter adjustment
16
OSCGND
17
VCOE
am/fm vco emitter
18
VCOB
am/fm vco base
19
OSCVCC
vco supply (8V)
20
LFOUT
PLL loop filter output
21
LFREF
PLL loop filter reference
22
LFIN
PLL loop filter input
23
LFHC
PLL loop filter high-current input
24
PLLVCC
PLL back-end supply
25
PLLGND
PLL back-end ground
26
XTALG
ref osc gate
27
XTALD
ref osc drain
28
DIGVCC
digital dirty supply (8V)
29
DIGGND
digital ground
30
TUNQUALITY
31
ISSTC
ISS time constant
32
DEVTC
deviation detector time constant
33
VREF3V
3V reference
34
APGND
audio processor/stereo decoder ground
35
APVCC
audio processor/stereo decoder supply (8V)
36
OUTRR
audio out
37
OUTRL
audio out
38
OUTFR
audio out
39
OUTFL
audio out
40
ACRIN
ac coupling right input
41
ACROUT
42
ACLIN
43
ACLOUT
44
IN2L
45
IN2COM
46
IN2R
audio in2 right
47
IN1R
audio in1 right
vco ground
tuner combined output of multipath and adjacent channel detectors
ac coupling right output
ac coupling left input
ac coupling left output
audio in2 left
audio in2 common
TDA7513T
Block diagrams
Table 2.
Pin description (continued)
Pin
Pin name
Pin function
48
IN1COM
49
IN1L
50
TUNERIN
51
TUNEROUT
am audio/fm mpx output
52
FMMUTETC
fm muting time constant capacitor
53
SDA
I2C bus data
54
SCL
I2C bus clock
55
SD
am/fm station detector output
56
SMETER
am/fm smeter output
57
QUALITY
quality output
58
AUDIOMUTE
59
RDSMUTE
60
MULTIPATHTC
61
FMDEMREF
62
DEMGND
63
SMETERTC
am/fm smeter filtering capacitor
64
AMIF2AMPREF
am if2 amp feedback capacitor
65
AMIF2AMPIN
am if2 amp input
66
AMAGC2TC
am agc2 filter capacitor
67
AMMIX2OUT
am mix2 single-ended output
68
FMMIX2IN2
fm mix2 input
69
FMMIX2IN1
fm mix2 input
70
FMIFAMP2OUT
fm if1 amp2 output
71
FMIFAMP2IN
fm if1 amp2 input
72
TUNVCC
73
FMIFAMPREF
74
FMIFAMP1OUT
fm if1 amp1 output
75
FMIFAMP1IN
fm if1 amp1 input
76
FMNAGCIN
77
IFGND
78
MIX1OUT2
am/fm mix1 output
79
MIX1OUT1
am/fm mix1 output
80
IFVCC
audio in1 common
audio in1 left
am audio/fm mpx input
audio mute control
rds mute control
multipath detector time constant
fm demodulator reference capacitor
fm demodulator ground
tuner general supply (8V)
fm if1 amps reference capacitor
fm agc IF input
if1 ground
if1 supply (8V)
11/84
Electrical characteristcs
TDA7513T
2
Electrical characteristcs
2.1
FM
(VCC = 8V; Tamb = 25°C; Vsg = 60dBμV; fc = 98.1MHz; fdev = 40kHz; fmod = 1kHz unless
otherwise specified)
Table 3.
General
(audioprocessor all flat and stereo decoder input gain = 4dB )
Symbol
US
SNR
LS
THD
Useable sensitivity
Test condition
Min
SNR = 40dB
Max
Unit
0
dBμV
66
dB
Soft Mute OFF; @ ΔVout = 3dB
-4
dBmV
fdev = 40kHz
0.1
0.3
%
fdev = 75kHz
0.15
0.5
%
Signal to Noise ratio
Limiting Sensitivity
Typ
Total Harmonic Distortion
Vout
Audio output level
rms
375
mV
ISN
Interstation noise
ΔVout @ RF OFF; Soft Mute
OFF
-13
dB
IFCS
Icc
Table 4.
Symbol
IF Counter sensitivity
2
dBμV
5.7
mA
PLLVcc
1.9
mA
DIGVcc
9.8
mA
TUNVcc
50
mA
IF1Vcc
13.4
mA
APVcc
27.3
mA
DC current
Mixer1
Parameter
Test condition
conversion gain
from RFT secondary to IFT1
secondary loaded with 330Ω
IIP3
3rd order intercept point
referred to RFT secondary
Rin
10
OSCVcc
Gv
CIFT1
12/84
Parameter
IFT1
adjustment
capacitor
min
max
Between MIXOUT+ and
MIXOUT-
step
input resistance (single
ended)
FMMIX1IN+ and FMMIX1INw.r.t. gnd
Min
Typ
9
Max
Unit
dB
dBμV
0
pF
8.25
pF
0.55
pF
10
W
TDA7513T
Electrical characteristcs
Table 5.
Front end adjustment
(VRFadj and VANTadj referred to VLFOUT)
Symbol
Parameter
Vantadj
min
-40
%
max
40
%
step
1.29
%
min
-40
%
max
40
%
step
1.29
%
VRFadj
Table 6.
Test condition
Min
Typ
Max
Unit
AGC
(wide AGC input connected to RFT primary through 10pF and 1KΩ)
Symbol
Parameter
WAGCsp
Wide AGC starting point
WAGCRin
FMWAGCIN input
resistance
Test condition
Min
VRFTprimary @
I(FMAGCOUT) = 5μA
Typ
Max
Unit
84
dBμV
125
W
VRFTprimary @
I(FMAGCOUT) = 5μA; Keyed
AGC OFF
95
dBμV
VRFTprimary @
Keyed narrow AGC starting I(FMAGCOUT) = 5μA; Keyed
KNAGCsp
point (min sensitivity)
AGC ON;
V(SMETERTC)<0.9V
109
dBμV
10
KΩ
0.9
V
2.5
V
1.6
V
3.2
V
NAGCsp
Narrow AGC starting point
(max sensitivity)
NAGCRin
FMNAGCIN input
resistance
KAGCTH
high
Smeter for
Keyed
narrow AGC
maximum
sensitivity
minimum
programming V(SMETERTC) @ narrow
AGC starting point =
maximum
NAGCsp
programming
KAGCTH
low
Smeter for
Keyed
narrow AGC
minimum
sensitivity
minimum
programming V(SMETERTC) @ narrow
AGC starting point =
maximum
KNAGCsp
programming
min
AGC OFF
max
AGC ON
min
AGC ON
max
AGC OFF
0.1
μA
Iout
Vout
AGCVRout
FMAGCVOUT output
resistance
8
mA
0.1
Vcc0.5
0.5
V
V
100
KΩ
13/84
Electrical characteristcs
Table 7.
TDA7513T
IF Amplifier 1
(Input at FMIFAMP1IN, fc = 10.7MHz, no mod)
(Output at FMIFAMP1OUT loaded with 330Ω)
(antenna level = FMIFAMP1IN – 31dB)
Symbol
Parameter
G
Gain
IIP3
3rd order intercept point
Rin
input resistance (singleended)
Rout
output resistance
Table 8.
Test condition
Min
Typ
Max
Unit
18
dB
referred to FMIFAMP1IN
126
dBμV
FMIFAMP1IN w.r.t. gnd
330
W
330
W
IF Amplifier 2
(Input at FMIFAMP2IN, fc = 10.7MHz, no mod)
(Output at FMIFAMP2OUT loaded with 330Ω)
(antenna level = FMIFAMP2IN – 45dB)
Gain MUST BE SET to 14dB for ISS operation.
Symbol
Parameter
Test condition
Min
Typ
minimum gain
G
rd
Symbol
Rin
Rout
Table 9.
Unit
6
dB
8
dB
10
dB
14
dB
134
dBm
V
programmable gain
maximum gain
IIP3
Max
Input 3 order intercept
point
referred to FMIFAMP2IN, G
= 8dB
Parameter
Test Condition
input resistance (singleended)
FMIFAMP2IN to gnd
Min
output resistance
Typ
Max
Unit
330
W
330
W
Field-strength meter
(Input at FMMIX2IN; fc = 10.7MHz, no mod)
(antenna level = V67 – 49dB)
Symbol
14/84
Parameter
Test condition
Min
Typ
Max
Unit
FS1
FSmeter1
V(FMMIX2IN+) = 50 dBmV
1.4
dBmV
FS2
FSmeter2
V(FMMIX2IN+) = 70 dBmV
2.7
dBmV
FS3
FSmeter3
V(FMMIX2IN+) = 90 dBmV
4.4
dBmV
FSR
FSmeter filtering resistor
SMETERTC pin
10.7
kW
min
0
V
FFSS
Filtered
FSmeter
Slider
max
1.5
V
step
50
mV
TDA7513T
Electrical characteristcs
Table 10.
Symbol
Gc
Vaudio
Table 11.
MPX output (output at TUNEROUT)
Parameter
Test condition
Min
conversion gain
audio level
peak, 40kHz deviation
Typ
Max
Unit
5.42
mV/kHz
217
mVp
Field strength stop station
(Input at FMMIX2IN – fc = 10.7MHz, no mod) (antenna level = V69 – 49dB)
Symbol
Parameter
Test condition
Min
Max
Unit
FSSSmin minimum threshold
Vthr = 0.4V
50
dBμV
FSSSmax maximum threshold
Vthr = 3.4V
78
dBμV
FSSSstep threshold step
ΔVthr = 200mV
3
dB
Table 12.
Symbol
Soft mute
Parameter
Test condition
Min
min
SMD
Soft Mute
Depth
max
MCVlow
Mute control voltage low
MCVhigh Mute control voltage high
ACMcl
*
Table 13.
Symbol
1.
min
Adjacent
channel mute max
clamp voltage
step
V(FMMUTETC) @ No
mute attenuation
V(FMMUTETC) @ Max
mute attenuation
Max V(FMMUTETC) in
Adjacent Channel
conditions
Typ
Max
Unit
13.4
dB
16
dB
19.5
dB
24
dB
0.2
V
2
V
500
mV
2000
mV
100
mV
ISS filter (FMIF1AMP1 gain must be set to 14dB) (1)
Parameter
BW1
Wide bandwidth
BW2
BWwb
2.2
Typ
Test condition
Full bandwidth @ -3dB
Min
Typ
Max
Unit
120
kHz
Narrow bandwidth
80
kHz
Weather Band bandwidth
30
kHz
If ISS function is not used, SEEK must be set to “ON” in FM
AM
(VCC = 8V; Tamb =25°C; Vsg = 74dBμV,emf; fc = 999kHz; 30% modulation; fmod = 400Hz
unless otherwise specified).
15/84
Electrical characteristcs
Table 14.
TDA7513T
General
(with 20pF/65pF dummy antenna; input levels @ SG,emf; output @ audioprocessor output;
audioprocessor all flat; stereo decoder input gain = 5.75dB)
Symbol
US
Parameter
Useable sensitivity
SNR
Signal to Noise ratio
MS
Maximum Sensitivity
Min
SNR = 20dB
Typ
Max
26
dBμV
56
@ ΔVout = -10dB
Unit
60
dB
20
dBμV
mod =30%, Vsg = 74dBμV
0.59
%
mod =80%, Vsg = 74dBμV
1.48
%
mod =30%, Vsg =
120dBμV
1.88
%
mod =80%, Vsg =
120dBμV
3
%
THD @ low frequency
mod =30%, Vsg =
74dBμV, fmod=100Hz
2
%
Vout
Audio output level
rms
266
mV
ISN
Interstation noise level
ΔVout @ RF OFF
-35
-31
dB
IFCS
IF Counter sensitivity
10
20
dBμV
THD
THDLF
Icc
Table 15.
Total Harmonic Distortion
8
OSCVcc
5.6
mA
PLLVcc
1.9
mA
DIGVcc
12.1
mA
TUNVcc
68
mA
IF1Vcc
7.8
mA
APVcc
27
mA
DC current
Mixer1 (Input at AMMIX1IN+, no mod)
Symbol
Parameter
Test condition
from AMMIX1IN+to IFT1
secondary loaded with 330 Ω
Gv
conversion gain
IIP3
Input 3rd order intercept point referred to AMMIX1IN+
Rin
input resistance (differential)
IFT1
CIFT1
16/84
Test condition
AMMIX1IN+ w.r.t.
AMMIX1IN-
min
adjustment
max
capacitor
step
Between MIXOUT+ and
MIXOUT-
Min
Typ
Max
Unit
13
dB
130
dBμV
1.2
kΩ
0
pF
8.25
pF
0.55
pF
TDA7513T
Electrical characteristcs
Table 16.
AGC1
(Wide AGC input = AM Mixer1 input; Narrow AGC input = AM Mixer2 input; Ultra Narrow
AGC input = AM IF2 Amp input; fWAGCin = 999kHz, fNAGCIN = 10.7MHz, fUNAGCin =
450kHz)
Symbol
Parameter
Wide AGC
min
starting point
max
NarrowAGC
min
starting point
max
Ultra Narrow
AGC
min
starting point
max
WAGCsp
NAGCsp
UNAGCsp
AGC1R
Iout
Vout
AGC1VRout
Table 17.
Test condition
Min
AMMIX1IN+ @
I(AMAGC1VOUT) = 1 uA
AMMIX1IN+ @
I(AMAGC1VOUT) = 1 uA
AMMIX1IN+ @
I(AMAGC1VOUT) = 1 uA
AGC1 filtering resistor
AMAGC1TC pin
min
AGC OFF
max
AGC ON
min
AGC ON
max
AGC OFF
Typ
Max
85
dBμV
104
dBμV
79
dBμV
97
dBμV
50
dBμV
97
dBμV
100
KΩ
1
0.4
μA
mA
0.5
AMAGC1VOUT output
resistance
Unit
V
3.38
V
23
KΩ
Mixer2
(Input at AMMIX2IN, fc = 10.7MHz, no mod)
Symbol
Parameter
Test condition
Min
Typ
Max
Unit
Gv, max
conversion gain, no AGC
from AMMIX2IN to IFT2
secondary loaded with 2k Ω
15
dB
Gv, min
conversion gain, full AGC
from AMMIX2IN to IFT2
secondary loaded with 2kΩ
-7
dB
IIP3
Input 3rd order intercept
point
referred to AMMIX2IN, no
AGC
120
dBμV
Rin
input resistance
AMMIX2IN w.r.t. ground
330
W
0
pF
24
pF
1.6
pF
IFT2
CIFT2
min
adjustment
max
capacitor
step
Between AMMIX2OUT and
gnd
17/84
Electrical characteristcs
Table 18.
TDA7513T
IF2 amplifier
(Input at AMIF2AMPIN, fc = 450kHz, no mod)
Symbol
Parameter
Test condition
Min
max prog
Typ
Max
64.8
Unit
dB
62.8
61.7
Gv, max
gain, no AGC
60.2
58.3
55.8
min prog
53.2
ΔGv
gain decrease in full AGC
w.r.t. Gv, max
Rin
input resistance
AMMIX2IN w.r.t. ground
Table 19.
Table 20.
dB
2
kΩ
AGC2
Symbol
AGC2R
-40
Parameter
Test condition
Min
AGC2 filtering reception
resistor
seek
Typ
Max
Unit
150
kΩ
5
kΩ
Audio output
(output at TUNEROUT, 2.7k Ω load)
Symbol
Vaudio
Table 21.
Parameter
Test condition
audio level
Min
rms, 30% modulation
Typ
Max
305
Unit
mV
Field strength meter
(Input at AMIF2AMPIN; fc = 450 kHz, no mod)
(SG,emf level = V65 – 29dB)
Symbol
Test condition
Min
Typ
Max
Unit
FS1
FSmeter1
V(AMIF2AMPIN) = 50
dBμV
0.7
dBμV
FS2
FSmeter2
V(AMIF2AMPIN) = 70
dBμV
2.1
dBμV
FS3
FSmeter3
V(AMIF2AMPIN) = 90
dBμV
4.2
dBμV
FSmeter
filter resistor
SMETERTC pin
16.5
kΩ
FSR
max
75
kΩ
min
0
V
max
1.5
V
step
48.4
mV
FFSS
18/84
Parameter
Filtered
FSmeter
Slider
min
TDA7513T
2.3
Electrical characteristcs
Oscillators (VCC = 8V; Tamb =25°C)
Table 22.
VCO
Symbol
Parameter
Test condition
Vvco
Oscillation level
Tuning Voltage = 4V
C/N
Carrier to Noise ratio
Δf = 1kHz
Table 23.
FXTAL
Table 24.
Typ
106
Max
Unit
108
dBμV
dBc/H
z
85
XTAL
Symbol
Vxtal
Min
Parameter
Test condition
Oscillation level
Adjustment
frequency
range
Min
@ XTAL gate
min
max
referred to 10.25 MHz
centered condition
step
Typ
Max
Unit
131
dBμV
-4
kHz
+4
kHz
238
Hz
Audio processor
(VS = 8V; Tamb = 25°C; RL = 10kΩ; all gains = 0dB; f = 1kHz; unless otherwise specified)
Symbol
Parameter
Test condition
Min.
Typ.
Max.
Unit
GIN MIN Min. Input Gain
-1
0
1
dB
GIN MAX Max. Input Gain
13
15
17
dB
0.5
1
1.5
dB
130
kΩ
Input gain
GSTEP
Step Resolution
Quasi differential stereo input 1&2
Rin
CMRR
Input Resistance
Any input pin to gnd
70
100
Common Mode Rejection
Ratio
VCM = 1VRMS @ 1kHz
45
70
dB
VCM = 1VRMS @ 10kHz
45
60
dB
Volume control
GMAX
Max Gain
13
15
17
dB
ASTEP
Step Resolution
0.5
1
1.5
dB
G = -20 to 20dB
-1.25
0
1.25
dB
G = -60 to 20dB
-4
0
3
dB
2
dB
EA
ET
VDC
Attenuation Set Error
Tracking Error
DC Steps
Adjacent Attenuation
Steps
mV
From 0dB to GMIN
mV
SOft mute/AFS
AMUTE
Mute Attenuation
80
100
dB
19/84
Electrical characteristcs
Table 24.
TDA7513T
Audio processor (continued)
(VS = 8V; Tamb = 25°C; RL = 10kΩ; all gains = 0dB; f = 1kHz; unless otherwise specified)
Symbol
TD
Parameter
Test condition
Min.
Typ.
Max.
Unit
T1
0.48
ms
T2
0.96
ms
T3
20.2
ms
T4
40.4
ms
Delay Time
VTH low
Low Threshold for SM-/AFSPin 1
VTH high
High Threshold for SM-/AFSPin
1
4
V
V
Bass control
±13
±15
±17
dB
0.5
1
1.5
dB
fC1
54
60
66
Hz
fC2
63
70
77
Hz
fC3
72
80
88
Hz
fC4
90
100
(150)
110
Hz
CRANGE Control Range
ASTEP
fC
Step Resolution
Center Frequency
(1)
QBASS
Q1
0.9
1
1.1
Q2
1.1
1.25
1.4
Q3
1.3
1.5
1.7
Q4
1.8
2
2.2
DC = off
-1
0
1
dB
DC = on
3.5
4.4
5.5
dB
±13
±15
±17
dB
0.5
1
1.5
dB
fC1
450
500
550
Hz
fC2
0.9
1
1.1
kHz
fC3
1.35
1.5
1.65
kHz
fC4
1.8
2
2.2
kHz
Q1
0.9
1
1.1
Q2
1.8
2
2.2
±13
±15
±17
Quality Factor
DCGAIN Bass-Dc-Gain
MID control
CRANGE Control Range
ASTEP
fC
QBASS
Step Resolution
Center Frequency
Quality Factor
Treble control
CRANGE Control Range
20/84
dB
TDA7513T
Electrical characteristcs
Table 24.
Audio processor (continued)
(VS = 8V; Tamb = 25°C; RL = 10kΩ; all gains = 0dB; f = 1kHz; unless otherwise specified)
Symbol
ASTEP
fC
Parameter
Test condition
Min.
Typ.
Max.
Unit
0.5
1
1.5
dB
fC1
8
10
12
kHz
fC2
10
12.5
15
kHz
fC3
12
15
18
kHz
fC4
14
17.5
21
kHz
17.5
25
32.5
kΩ
17
dB
Step Resolution
Center Frequency
Speaker attenuators
RIN
Input Impedance
GMAX
Max Gain
13
15
AMAX
Max Attenuation
-70
-79
ASTEP
Step Resolution
0.5
1
AMUTE
Output Mute Attenuation
80
90
EE
VDC
1.5
dB
dB
±2
Attenuation Set Error
DC Steps
dB
Adjacent Attenuation
Steps
dB
mV
Audio outputs
VCLIP
Clipping Level
RL
Output Load Resistance
CL
Output Load Capacitance
THD = 0.3%
2.2
VRM
S
2.6
2
kΩ
10
nF
120
W
ROUT
Output Impedance
30
VDC
DC Voltage Level
3.9
V
General
Gqd
Gain (QDin)
Quasi-differential Input
0.5
dB
Gstd
Gain (Tuner)
Tuner Input (STD
InGain=4dB)
7.5
dB
BW = 20 Hz to 20 kHz
output muted; all flat
eNO
S/N
15
μV
Output Noise (QDin)
Signal to Noise Ratio (QDin)
BW = 20 Hz to 20 kHz
all gain = 0dB
20
μV
all gain = 0dB flat; VO =
2VRMS
100
dB
bass treble at 12dB;
A-weighted; VO =
2.6VRMS
96
dB
21/84
Electrical characteristcs
Table 24.
TDA7513T
Audio processor (continued)
(VS = 8V; Tamb = 25°C; RL = 10kΩ; all gains = 0dB; f = 1kHz; unless otherwise specified)
Symbol
d
Parameter
Test condition
Min.
Typ.
Max.
Unit
VIN = 1VRMS; all stages
0dB
0.012
0.1
%
VIN = 1VRMS; Bass &
Treble = 12dB
0.05
0.1
%
Distortion (QDin)
SC
Channel separation Left/Right
(QDin)
ET
Total Tracking Error
80
dB
AV = 0 to -20dB
-1
0
1
dB
AV = -20 to -60dB
-2
0
2
dB
0.8
V
Bus inputs
VIL
Input Low Voltage
VIH
Input High Voltage
IIN
Input Current
VIN = 0.4V
VO
Output Voltage SDA
Acknowledge
IO = 1.6mA
2.5
V
5
μA
0.4
V
-5
1. See note in programming part
Note:
The SM pin is active low (Mute = 0)
2.4
Stereo decoder
Table 25.
Stereo decoder
(Vcc = 8V; deemphasis time constant = 50µs, VMPX = 305mVrms (75kHz deviation), fm=
1kHz, Gv = 4dB, Tamb = 27°C; unless otherwise specified)
Symbol
Rin
Parameter
Input
Resistance
Test condition
Min.
Typ.
Max.
Unit
FM
70
100
130
kΩ
AM
1.4
2
2.6
kΩ
min
GV
0.5
dB
2.25
dB
4.0
dB
5.75
dB
35
60
dB
30
45
dB
Stereo decoder
input gain
max
SVRR
22/84
Supply Voltage Ripple
Rejection
a
Max. channel Separation
THD
Total Harmonic Distortion
(S+N)/N
Signal plus Noise to Noise
Ratio
Vripple = 100mV; f =
1KHz
0.02
A-weighted, S = 2Vrms
@ APout
80
91
0.3
%
dB
TDA7513T
Electrical characteristcs
Table 25.
Stereo decoder (continued)
(Vcc = 8V; deemphasis time constant = 50µs, VMPX = 305mVrms (75kHz deviation), fm=
1kHz, Gv = 4dB, Tamb = 27°C; unless otherwise specified)
Symbol
Parameter
Test condition
Min.
Typ.
Max.
Unit
Mono/stereo switch
VPTHST1
Pilot Threshold Voltage
for Stereo, PTH = 1
15
mV
VPTHST0
Pilot Threshold Voltage
for Stereo, PTH = 0
25
mV
VPTHMO1 Pilot Threshold Voltage
for Mono, PTH = 1
12
mV
VPTHMOO Pilot Threshold Voltage
for Mono, PTH = 0
19
mV
PLL
Δf/f
f0
PILmax
Lock Range
Center
frequency
range
-6
min
max
VCO Vtuning fixed to
reference voltage
step
Maximum input pilot voltage
@TUNERIN
276
+6
%
328
kHz
619
kHz
9.4
kHz
mV
Deemphasis and highcut
τHC50
Deemphasis Time Constant
Bit 7, Subadr, 10 = 0,
VLEVEL >> VHCH
25
50
75
μs
τHC75
Deemphasis Time Constant
Bit 7, Subadr, 10 = 1,
VLEVEL >> VHCH
50
75
100
μs
τHC50
Highcut Time Constant
Bit 7, Subadr, 10 = 0,
VLEVEL >> VHCL
100
150
200
μs
τHC75
Highcut Time Constant
Bit 7, Subadr, 10 = 1,
VLEVEL >> VHCL
150
225
300
μs
Stereoblend and highcut control
REF5V
Internal Reference Voltage
4.7
5
5.3
V
LGmin
Min. LEVEL Gain
-1
0
1
dB
LGmax
Max. LEVEL Gain
8
10
12
dB
LGstep
LEVEL Gain Step Resolution
0.3
0.67
1
dB
VSBLmin
Min. Voltage for Mono
25
29
33
%REF5V
VSBLmax
Max. Voltage for Mono
54
58
62
%REF5V
VSBLstep
Step Resolution
2.2
4.2
6.2
%REF5V
VHCHmin
Min. Voltage for NO Highcut
38
42
46
%REF5V
VHCHmax Max. Voltage for NO Highcut
62
66
70
%REF5V
VHCHstep Step Resolution
5
8.4
12
%REF5V
Min.
Typ.
Max.
Unit
Symbol
Parameter
Test Condition
23/84
Electrical characteristcs
Table 25.
TDA7513T
Stereo decoder (continued)
(Vcc = 8V; deemphasis time constant = 50µs, VMPX = 305mVrms (75kHz deviation), fm=
1kHz, Gv = 4dB, Tamb = 27°C; unless otherwise specified)
Symbol
Parameter
Test condition
Min.
Typ.
Max.
Unit
VHCLmin
Min. Voltage for FULL
Highcut
12
17
22
%VHCH
VHCLmax
Max. Voltage for FULL
Highcut
28
33
38
%VHCH
2.2
4.2
6.2
%VHCH
40
50
VHCLstep Step Resolution
Carrier and harmonic suppression at the output
2.5
α19
Pilot Signal f = 19KHz
α38
Subcarrier f = 38KHz
75
dB
α57
Subcarrier f = 57KHz
62
dB
α76
Subcarrier f = 76KHz
90
dB
Noise blanker
Table 26.
Symbol
VTR
VTRNOISE
Noise blanker
Parameter
Test condition
VRECT
Min. Typ. Max.
NBT = 111
(3)
NBT = 110
(3)
NBT = 101
(3)
Trigger Threshold (1) meas. with VPEAK = NBT = 100
(2)
0.9V
NBT = 011
(3)
NBT = 010
(3)
NBT = 001
(3)
NBT = 000
(3)
NCT = 00
(3)
NCT = 01
(3)
NCT = 10
(3)
NCT = 11
Noise Controlled
Trigger threshold (4)
Rectifier Voltage
Unit
30
(3)
mV
35
(3)
mV
40
(3)
mV
45
(3)
mV
50
(3)
mV
55
(3)
mV
60
(3)
mV
65
(3)
mV
260
(3)
mV
220
(3)
mV
180
(3)
mV
(3)
140
(3)
mV
0.5
0.9
1.3
V
VMPX = 50mV; f = 150KHz
1.5
1.7
2.1
V
VMPX = 200mV; f = 150KHz
2.2
2.5
2.9
V
meas. with VPEAK
= 1.5V
VMPX = 0mV
24/84
dB
NRD
(8)
= 00
(3)
TDA7513T
Electrical characteristcs
Table 26.
Symbol
VRECT
DEV
Noise blanker (continued)
Parameter
Min. Typ. Max.
0.5
0.9
1.3
V
Meas. with VMPX = OVD = 10
Deviation dependent
800mV (75KHz
(5)
rectifier Voltage
OVD = 01
dev.)
OVD = 00
0.9
1.2
1.5
V
1.7
2
2.3
V
2.5
2.8
3.1
V
FSC = 11
0.5
0.9
1.3
V
FSC = 10
0.9
1.4
1.5
V
FSC = 01
1.7
1.9
2.3
V
FSC = 00
2.1
2.4
3.1
V
Suppression Pulse
Duration (7)
Rectifier Voltage 4)
VMPX = 0mV
VLEVEL << VSBL
(fully mono)
Signal HOLDN
in Testmode
BLT = 00
38
μs
BLT = 10
32
μs
BLT = 01
25.5
μs
BLT = 00
Noise Rectifier
VRECTADJ discharge
adjustment (8)
VADJMP
1.
Noise Rectifier
Charge
Noise Rectifier
adjustment through
Multipath (10)
Signal PEAK in
Testmode
Signal PEAK in
Testmode
Signal PEAK in
Testmode
μs
22
(8)
(3)
NRD = 01 (8)
(3)
NRD = 10
(8)
(3)
NRD = 11
(8)
(3)
NRD = 00
SRPEAK
Unit
OVD = 11
Fieldstrength
VRECT FS Controlled Rectifier
Voltage (6)
TS
Test condition
0.3
(3)
V/ms
0.8
(3)
V/ms
1.3
(3)
V/ms
V/ms
2
(3)
(9)
(3)
10
(3)
mV/μs
PCH = 1 (9)
(3)
20
(3)
mV/μs
0.3
(3)
V/ms
V/ms
PCH = 0
MPNB = 00
(10)
(3)
MPNB = 00
(10)
(3)
0.5
(3)
MPNB = 00
(10)
(3)
0.7
(3)
V/ms
MPNB = 00 (10)
(3)
0.9
(3)
V/ms
All thresholds are measured using a pulse with TR =2ms,THIGH = 2ms and TF = 10ms. The repetition rate must not
icrease the PEAK voltage.
2.
NBT represents the noiseblanker byte bits D2, D0 for the noise blanker trigger threshold.
3.
By design/characterization functionally guaranteed through dedicated test mode structure.
4.
NAT represents the noiseblanker byte bit pair D4, D3 for the noise controlled trigger adjustment.
5.
OVD represents the noiseblanker byte bit pair D7, D6 for the over deviation detector.
6.
FSC represents the fieldstrength byte bit pair D1, D0 for the fieldstrength control.
7.
BLT represents the speaker RR byte bit pair D7, D6 for the blanktime adjustment.
8.
NRD represents the configuration byte bit pair D1, D0 for the noise rectifier discharge adjustment.
9.
PCH represents the stereo decoder byte bit D5 for the noise rectifier charge current adjustment.
10. MPNB represents the highcut byte bit D7 and the field strength byte D7 for the noise rectifier multipath adjustment
25/84
Electrical characteristcs
2.6
TDA7513T
Multipath and quality detectors
Table 27.
Symbol
fCMP
Multipath and quality detectors
Parameter
Center Frequency of
Multipath Bandpass
GBPMP Bandpass Gain
GRECT
Rectifier Gain
MP
ICHMP Rectifier Charge Current
Test condition
Min. Typ. Max. Unit
Stereodecoder locked on Pilottone
19
kHz
bits D2, D1 configuration byte = 00
6
dB
bits D2, D1 configuration byte = 10
12
dB
bits D2, D1 configuration byte = 01
16
dB
bits D2, D1 configuration byte = 11
18
dB
bits D7, D6 configuration byte = 00
7.6
dB
bits D7, D6 configuration byte = 01
4.6
dB
bits D7, D6 configuration byte = 10
0
dB
bits D7, D6 configuration byte = 11
off
bit D5 configuration byte = 0
0.5
μA
bit D5 configuration byte = 1
1
μA
IDISMP Rectifier Discharge Current
A
B
26/84
Multipath Influence Factor
Noise Influence Factor
0.5
1
1.5
mA
00
0.7
dB
01
0.85
dB
10
1
dB
11
1.15
dB
00
15
dB
01
12
dB
10
9
dB
11
6
dB
Addr. 12 / Bit 5+6
Addr. 16 / Bit 1+2
TDA7513T
Functional description
3
Functional description
3.1
FM section
3.1.1
Mixer1, AGC and 1st IF
Mixer1 is a wide dynamic range stage with low noise and large input signal performance.
The mixer1 tank center frequency can be adjusted by software (IF1T). The AGC operates on
different sensitivities and bandwidths (FMAGC) in order to improve the input sensitivity and
dynamic range (keyed AGC). The output signals of AGC are controlled voltage and current
for pre-amplifier and pre-stage PIN diode attenuator. Two 10.7MHz amplifiers (IFG1 - fixed
gain - and IFG2 - programmable) correct the IF ceramic insertion loss.
3.1.2
Mixer2, limiter and demodulator
In this 2nd mixer stage the first 10.7MHz IF is converted into the second 450kHz IF. A multistage limiter generates signals for the complete integrated demodulator without external
tank. MPX output DC offset compensation is possible via software.
3.1.3
Quality detection and ISS field strength
Parallel to the mixer2 input a 10.7MHz limiter generates a signal for the digital IF counter
and a fieldstrength output signal. This internal unfiltered fieldstrength is used for adjacent
channel and multipath detection. The behaviour of this output signal can be corrected for DC
offset (SL). The internally generated unfiltered fieldstrength is filtered at pin #SMETERTC
and used for softmute function, FM AGC keying and generation of ISS filter switching signal
for weak input level (sm). (See Figure 1.)
3.1.4
Adjacent channel detector
The input of the adjacent channel detector is AC coupled to the internal unfiltered
fieldstrength. A programmable and configurable highpass or bandpass filter (ACF) and
amplifier (ACG) followed by a rectifier measure the adjacent channel content. This voltage is
compared with an adjustable threshold (ACWTH, ACNTH) comparator (comparator1). The
output signal of this comparator generates a DC level at PIN15 with a programmable time
constant. Time constant control (TISS) for the adjacent channel is made by linearly charging
and discharging an external capacitor following. The charge current is fixed and the
discharge current is controlled by I2C bus. This level produces digital signals (ac, ac+) after
comparing by the following comparator4. The adjacent channel information after filtering
and rectification is available as analog output on pin #TUNQUALITY (the gain can be
selected via I2C bus) in combination with multipath content information. It is possible to
enable adjacent channel content information output only via I2C bus control.
3.1.5
Multipath detector
The input of the multipath detector is AC coupled to the internal unfiltered fieldstrength. A
programmable band-pass filter (MPF) and amplifier (MPG) followed by a rectifier measures
the multipath content. This voltage is compared with an adjustable threshold (MPTH)
comparator (comparator2). The output signal of this comparator2 is used to disable the
adjacent channel detector control of the ISS filter in case of strong multipath, which would
otherwise result in bandwidth reduction because of the multipath-induced high-frequency
27/84
Functional description
TDA7513T
content of the fieldstrength signal. The multipath detector influence on the adjacent channel
detector is selectable by I2C bus (MPOFF). The multipath information after filtering and
rectification is available as analog output on pin #TUNQUALITY (the gain can be selected
via I2C bus) in combination with the adjacent channel content information. It is possible to
enable multipath content information output only via I2C bus control.
3.1.6
450kHz IF narrow bandpass filter (ISS filter)
The device features an additional automatically selectable IF narrow bandpass filter for
suppression noise and adjacent channel signals. This narrow filter has three switchable
bandwidth positions: narrow range (80kHz), mid range (120kHz) and weather band (30kHz).
WHen the ISS filter is not inserted the IF bandwidth (wide range) is defined only by the
ceramic filter chain. The filter is switched in after mixer2 before the 450kHz limiter stage.
The centre frequency can be finely adjusted (AISS) by software.
3.1.7
Deviation detector
In order to avoid excessive audio distortion the narrow ISS filter is switched OFF when
overdeviation of the incoming signal is detected. The demodulator output signal is low-pass
filtered and rectified to generate a DC level in an external capacitor through a softwarecontrolled current (TDEV). This level is compared with a programmable threshold (DWTH,
DTH) comparator (comparator3) to generate two digital signals (dev, dev+).
3.1.8
ISS switch logic
All digital signals coming from adjacent channel detector, deviation detector and softmute
are combined in a decision matrix to generate the control signals for the ISS filter switch.
The IF bandpass switch mode can be also controlled by software (ISSON, ISS30, ISS80,
ISSCTL). The switch-on of the IF bandpass can be further controlled from the outside by
manipulation of the voltage at pin #ISSTC. Two application modes are available (APPM).
The conditions are described in table 1.
3.1.9
Soft mute control
The external fieldstrength signal at pin #SMETERTC is the reference for MPX mute control.
The start point and mute depth are programmable over a wide range. The time constant is
defined by the external capacitor connected to pin #FMMUTETC.
Additionally adjacent channel mute function is supported. A software-configurable highpass
/ bandpass filter centered at about 100kHz followed by an amplifier and a peak rectifier
generates adjacent noise information starting from the MPX output; the information is acted
upon with the same time constant as the softmute by the MPX muting circuit. The adjacent
channel mute starting point, slope and depth are I2C bus programmable.
3.1.10
Station detector and seek stop
A station detection function is provided for easy seek stop operation. The unfiltered
fieldstrength signal is compared with a programmable threshold and the result (logic '1' if the
current station strength is higher than the threshold) is combined by an AND gate with the IF
counter output (logic '1' if the current channel is centered within a programmable window
around the desired frequency). The result is available on pin #SD for direct connection to the
microprocessor. Channel quality assessment for RDS Alternate Frequency operation makes
use of the SD signal in conjunction with analog information on adjacent channel and
28/84
TDA7513T
Functional description
multipath content on pin #TUNQUALITY and channel noise (furtherly combined with
multipath content information) on pin #QUALITY.
3.2
AM section
The upconversion mixer1 is combined with a gain control circuit 1 sensing three input
signals: ultra-narrow band information (from the IF2 amplifier input - pin #AMIF2AMPIN),
narrow-band information (from the mixer2 input - pin #AMMIX2IN) and wide band
information (from the mixer1 input - pins #AMMIX1IN+ and #AMMIX1IN-). This gain control
circuit generates two output signals: a current for P-I-N diode attenuation and a voltage for
the external preamplifier cascode upper base. It is possible to put in a separate narrow
bandpass filter before mixer2 at PIN 58. The intervention point for first AGC on all three
bands is programmable by software.
The oscillator frequency for mixer1 is generated by dividing the FM VCO frequency (AMD)
by 6, 8 and 10 (6 for Japan applications, 8 for Eastern European applications, 10 for
Western European and North American operation).
In mixer2 the IF1 is downconverted into the 450kHz IF2. The gain of mixer2 is reduced by
the 2nd AGC after the gain of the subsequent IF2 amplifier has been reduced by 30dB. The
mixer2 tank center frequency is software-adjustable (IF2T).
After channel selection is done by the ceramic filter, a 450kHz amplifier with a gain control is
included. The gain is controlled by the AGC2 loop over a 30dB range; the full gain with no
AGC applied is programmable.
The AM demodulation is made by multiplication of the IF2 amplifier output by the amplified
and limited signal coming from the IF2 amplifier input, thus making the demodulation
process inherently linear.
The demodulated audio signal is low-passed by the capacitor at pin #AMAGC2TC to
produce the DC AGC2 voltage. The low-pass time constant is switchable by a ratio of 30 in
order to reduce the settling time of the AGC2 in 'seek' mode (AMSEEK).
The FM 450kHz limiter is used to generate the square wave needed by the AM demodulator,
a fieldstrength indication and to feed the AM IF counter. The fieldstrength information is
generated mainly from the narrow-band signal at the input of the IF2 amplifier; since the
dynamic range at that input is limited by the AGC2 action, a fieldstrength extension is made
adding the contribution of the signal at the input of mixer2. Since the bandwidth there is very
large, though, the latter contribution is enabled only if the strength of the narrow-band signal
is higher than an internally defined threshold. The fieldstrength signal must be low-passed
to remove audio content and this is done by use of the capacitor at pin #SMETERTC with an
I2C bus programmable internal resistor. The value of the capacitor is determined for correct
FM operation; the value of the internal resistor for AM is selectable in order to make the AM
time constant suitable for AM operation.
A station detection function is provided for easy seek stop operation. The fieldstrength
signal is compared with a programmable threshold and the result (logic '1' if the current
station strength is higher than the threshold) is combined by an AND gate with the IF
counter output (logic '1' if the current channel is centered within a programmable window
around the desired frequency). The result is available on pin #SD for direct connection to the
microprocessor.
29/84
Functional description
3.3
TDA7513T
PLL and IF counter section
The IC contains a frequency synthesizer and a loop filter for the radio tuning system. Only
one VCO is required to build a complete PLL system for FM and AM upconversion. For auto
search stop operation an IF counter system is available.
3.3.1
PLL frequency synthesizer block
The counter works in a two stages configuration. The first stage is a swallow counter with a
two-modulus (32/33) precounter. The second stage is an 11-bit programmable counter. The
circuit receives the scaling factors for the programmable counters and the values of the
reference frequency via I2C bus. The reference frequency is generated by an adjustable
internal (XTAL) oscillator followed by the reference divider. The reference and stepfrequencies are independently selectable (RC, PC). The phase-frequency detector outputs
switches the programmable current source. The loop filter integrates the latter to a DC
voltage. The current source values is programmable with 6 bits received via I2C bus (A, B,
CURRH, LPF). To minimize the noise induced by the digital part of the system, a special
guard area is implemented. The loop gain can be adjusted for different conditions by setting
the current values of the chargepump generator.
3.3.2
Frequency generation for phase comparison
The VCO signal is fed to a two-modulus counter (32/33) prescaler, which is controlled by a
5-bit divider (A). A 5-bit register (PC0 to PC4) controls this divider. The output of the
prescaler is connected to an 11-bit divider (B), controlled by an 11-bit PC register (PC5 to
PC15).
The following expressions relate the divider output frequency (fSYN, forced by the loop to
equal the reference frequency at the phase comparator input fREF) to the VCO frequency
(fVCO) and to the crystal oscillator frequency (fXTAL):
fXTAL = (R+1) x fREF
fVCO = [33 x A + (B + 1 - A) x 32] x fREF
fVCO = (32 x B + A + 32) x fREF
Important: For correct operation: A ≤32; B ≥A
3.3.3
Three state phase comparator
The phase comparator generates a phase error signal according to phase difference
between fSYN and fREF. This phase error signal drives the charge pump current generator.
3.3.4
Charge pump current generator
This system generates correction current pulses with a polarity and a duration dictated by
the phase error signal. The current absolute values are programmable through register A for
high current and register B for low current.
The charge pump operates in high current mode when the phase difference between
between fSYN and fREF is high. The switch back to low current mode can be done either
automatically as a function of the inlock detector output (setting bit LDENA to "1") or via
software.
After reaching a phase difference equivalent to 10-40 ns (programmable) and a delay
multiple of 1/fREF, the chargepump is forced in low current mode. A new PLL divider
programming by I2C bus will switch the chargepump into high current mode.
30/84
TDA7513T
Functional description
A few programmable phase errors (D0, D1) are available for inlock detection. The count of
detected inlock informations to release the inlock signal is adjustable (D2, D3), to avoid
switching to low current during a frequency jump.
3.3.5
Low noise CMOS op-amp
An internal voltage divider at pin #LFREF is connected to the positive input of the low noise
op-amp. The charge pump output is connected to the negative input. This internal amplifier
in cooperation with external components provides the active loop filter. Only one loop filter
connection is provided because the same reference frequency is used for both AM and FM
operation. The pin #LFHC is connected in such a way as to partially shunt the loop filter in
order to decrease the time constant of the filter itself during jumps with high current mode
activated.
3.3.6
IF counter block
The input signal for FM and AM has the same structure although FM IF is measured at IF1
(10.7MHz) and AM IF is measured at IF2 (450kHz). The degree of integration is adjustable
to up to eight different measuring cycle times. The tolerance of the accepted count value is
adjustable to reach the optimum compromise between search speed and evaluation
precision.
T center frequency of the measured count value is adjustable to fit the IF-filter tolerance.
3.3.7
The IF counter mode
The IF counter works in 2 modes controlled by the IFCM register.
3.3.8
Sampling timer
A 14-bit programmable (IRC) sampling timer generates the gate signal for the main counter.
In FM mode a 6.25kHz frequency reference is generated for this purpose, whereas in AM
mode this reference becomes 1kHz. These reference frequencies are further divided to
generate the measurement time windows (160us - 320μs ... 20.48ms for FM, 1ms - 2ms …
128ms for AM).
3.3.9
Intermediate frequency main counter
This counter is a 11 - 21-bit synchronous autoreload down counter. Five bits (CF) are
programmable to allow the adjustment to the peak of the IF-filter response. The counter
length is automatically adjusted to the chosen sampling time and counter mode (FM, AM).
The IF counter is also used to automatically perform the stereo decoder 456kHz VCO
frequency adjustment.
At the start the counter will be loaded with a value equivalent to the expected number of
zero-crossing in the sampling time window (tSample x fIF ). If the correct frequency is applied
to the IF counter input, at the end of the sampling time the main counter will have either a 0h
state or a 1FFFFFh state stored.
A deviation from the expected IF will result in a difference of the counter final state from
either of these values. The counter final state is then compared to either 0h or 1FFFFFh
minus a number of LSB's determined by the acceptable frequency window programming
(EW).
31/84
Functional description
TDA7513T
If the comparison result is good the IF counter output changes from LOW to HIGH and is
made available outside at the pin #SD (after a NAND operation with the signal strength
evaluation circuit). The following relationships apply:
tTIM = (IRC + 1) / fOSC
tCNT = (CF + 1697) / fIF (FM mode)
tCNT = (CF + 448) / fIF
(AM mode)
where
tTIM = IF timer cycle time (sampling time)
tCNT = IF counter cycle time
Counting succesful:
tCNT - tERR = tTIM = tCNT + tERR
Count failed:
tTIM > tCNT + tERR
tTIM < tCNT - tERR
where
tERR = discrimination window (controlled by the EW registers)
The IF counter can be started only by inlock information from the PLL, and it is enabled by
software (IFENA).
3.3.10
Adjustment of the measurement time and frequency window
The measurement precision is adjustable by controlling the width of the frequency
discrimination window through control registers EW0 to EW2. The center frequency of the
discrimination window is adjustable by the control register CF0 to CF4. The measurement
time per cycle is adjustable by setting the registers IFS0 - IFS2.
3.4
Audio processor
3.4.1
Input multiplexer
CD quasi differential 1
CD quasi differential 2
Stereodecoder input (for both FM and AM signals).
3.4.2
Input stages
The quasi-differential input stages (see Figure 2.) have been designed to cope with some
CD players in the market having a significant high source impedance which affects strongly
the common-mode rejection of "normal" differential input stages. The additional buffer of the
CD input avoids this drawback and offers the full common-mode rejection even with those
CD players. The quasi-differential input can also be used with normal stereo single-ended
output signal sources such as TAPEOUT.
32/84
TDA7513T
3.4.3
Functional description
AutoZero
In order to reduce the number of pins there is no AC coupling between the In-Gain and the
following stage, so that in theory any offset generated by or before the In-Gain stage would
be transferred or even amplified to the output. To avoid this undesired situation a special
offset cancellation stage called AutoZero is implemented. This stage is located before the
Volume block to eliminate all offsets generated by the Stereodecoder, the Input Stage and
the In-Gain stage (please note that externally generated offsets, e.g. those generated
because of leakage current into the coupling capacitors, are not cancelled).
The auto-zeroing is started every time the APSD data byte 0 is selected and takes a
maximum time of 0.6ms. The rationale behind this choice is that the APSD byte encodes the
signal source selection, and auto-zero ought to be performed every time a new source is
selected. To avoid audible clicks the audioprocessor is muted before the volume stage
during this time.
3.4.4
AutoZero remain
In some cases, for example if the uP is executing a refresh cycle of the I2C bus
programming, it is not necessary to start a new AutoZero action because no new source is
selected and an undesired mute would appear at the outputs. For such applications the
device can be switched in the "AutoZero Remain mode" (Bit 6 of the APSD subaddress
byte). If this bit is set to high, the APSD data byte 0 can be loaded without invoking the
AutoZero and the old adjustment value remains.
3.4.5
Softmute
The digitally controlled softmute stage allows signal muting and unmuting with a I2C bus
programmable slope. The mute process can either be activated by pin #AUDIOMUTE or I2C
bus. The slope is realized in a special S-shaped curve so as to slowly mute in the critical
regions (see Figure 4.). For timing purposes the Bit 3 of the I2C bus output register is set to
1 from the start of muting until the end of unmuting.
3.4.6
BASS
There are four parameters programmable in the bass filter stage: (see Figure 5, 6, 7, and 8):
3.4.7
Attenuation
Figure 5 shows the attenuation as a function of frequency at a center frequency at a center
frequency of 80Hz.
3.4.8
Center frequency
Figure 6 shows the four possible center frequencies: 60,70,80 and 100Hz.
3.4.9
Quality factors
Figure 7 shows the four possible quality factors: 1, 1.25, 1.5 and 2.
33/84
Functional description
3.4.10
TDA7513T
DC Mode
In this mode the DC gain is increased by 5.1dB. In addition the programmed center
frequency and quality factor is decreased by 25%: this can be used to realize different
center frequencies or quality factors with respect to the values listed in the "BASS" section.
3.4.11
MID
There are 3 parameters programmable in the mid filter stage (see Figure 9, 10 and 11):
3.4.12
Attenuation
Figure 9 shows the attenuation as a function of frequency at a center frequency of 1kHz.
3.4.13
Center frequency
Figure 10 shows the four possible center frequencies: 500Hz, 1kHz, 1.5kHz and 2kHz.
3.4.14
Quality factor
Figure 11 shows the two possible quality factors (1 and 2) at a center frequency of 1kHz.
3.4.15
TREBLE
There are two parameters programmable in the treble filter stage (see Figure 12, 13):
3.4.16
Attenuation
Figure 12 shows the attenuation as a function of frequency at a center frequency of
17.5kHz.
3.4.17
Center frequency
Figure 13 shows the four possible Center Fre-quencies: 10, 12.5, 15 and 17.5kHz.
3.4.18
AC coupling
In some applications additional signal manipulations are desired such as surround-sound
processing or more extensive band equalizing. For this purpose a AC-Coupling is placed
before the Speaker-attenuators, which can be activated or internally shorted by Bit7 in the
APSD data byte 0. The input impedance of the AC Inputs is 25kΩ. The external AC coupling
is advised for those applications where very low-level "pop" performance is a must.
3.4.19
Speaker attenuator
The speaker attenuators have exactly the same structure and range as the Volume stage.
3.5
Stereo decoder
The stereo decoder part of the present device (see Figure 14) contains all functions
necessary to demodulate the MPX signal such as pilot tone-dependent MONO/STEREO
switch as well as "stereoblend" and "highcut" functions.
34/84
TDA7513T
3.5.1
Functional description
Stereo decoder mute
The device has a fast and easy-to-control RDS mute function meant for "freezing" the stereo
decoder status during the RDS AF check time period. When this function is invoked three
effects take place:
1.
The stereo decoder input impedance changes to infinity (condition known as highohmic input); this prevents the decoupling capacitor between the pins #TUNER_OUT
(tuner output) and #TUNER_IN (stereo decoder input) to be discharged by a channel
with a potentially different DC output for the duration of the AF check;
2.
The stereo decoder PLL pilot detector is held at the current value;
3.
The external capacitor of the multipath detector used inside the stereo decoder for
quality control is disconnected from the dection circuit in order to make quality
checking the AF faster.
The RDS mute is activated from pin #RDSMUTE in AND with Bit 0 of APSD data byte 9.
3.5.2
Stereo decoder Input stage, Ingain + Infilter
The stereo decoder is crossed by both the FM and the AM signal: the input impedance of
the pin #TUNER_IN is different between the two modes in order to allow the same external
coupling components between #TUNER_OUT and #TUNER_IN to realize different filtering
functions. Whilst the input impedence in FM is 100k , in AM the input impedance is
decreased to 2kΩ: this allows the realization of typical high-pass filters with a corner
frequency of 70Hz for AM and less than 5Hz for FM. The low-pass section of the typical AM
transfer function is realized by use of the internal FM High-Cut filter.
The Ingain stage allows to adjust the MPX signal to a magnitude of about 1Vrms internally
which is the recommended value. The 4th order input filter has a corner frequency of 80kHz
and is used to attenuate spikes and nose and acts as an anti aliasing filter for the following
switch capacitor filters.
3.5.3
Demodulator
In the demodulator block the left and the right channel are separated from the MPX signal.
In this stage the 19 kHz pilot tone is cancelled.
To reach a good channel separation the device offers an I2C bus programmable roll-off
adjustment which is able to finely compensate for the low-pass behaviour of the tuner
section. An adjustment to better than 40dB channel separation is possible. The bits for this
adjustment are located ogether with the fieldstrength adjustment in one byte. This gives the
possibility to perform an optimization step during the production of the carradio where the
channel separation in relation to the fieldstrength control are trimmed.
The setup of the Stereoblend characteristics, which is fully programmable, is de-scribed in
Chapter 3.5.8.
3.5.4
De-emphasis and highcut.
One filter is provided to realize de-emphasis and High-Cut filtering.
The lowpass filter for the de-emphasis allows to choose between a time constant of 50μs
and 75μs.
The filter time constant can further be controlled in both cases over the range = 2 DEEMPH.
The control is automatically performed as a function of the filtered field strength level: inside
35/84
Functional description
TDA7513T
the highcut control range (between VHCH and VHCL) the level is converted into a 5 bit word
which drives the lowpass time constant. The FM highcut function can be switched off by I2C
bus (bit 0,of APSD data byte 11). The setup of the highcut characteristics is described in
2.9.
In AM the high-cut filter can be programmed (bit 3 to 7 of APSD data byte 16) to a fixed
value (inside the above-mentioned programmable range) in order to provide the desired
lowpass characteristic of the AM signal.
3.5.5
PLL and pilot tone detector
The PLL is tasked with locking on the 19kHz pilot tone during a stereo transmission to allow
the correct demodulation. The detector enables the stereo demodulation if the pilot tone
reaches the selected pilot tone threshold VPTHST. Two different thresholds are available.
The detector output can be checked by reading the status byte of the TDA7407 via I2C bus.
3.5.6
Fieldstrength control
The filtered field strength signal is fed to the stereo decoder where it can be finely adjusted
and normalized so that it can be used to control the highcut and stereoblend functions.
Furthermore the adjusted signal can also be used to control the noise-blanker thresholds.
The unfiltered field strength meter, on the other hand, is used as input for the stereo decoder
multipath detector. These additional functions are described in sections 3.3 and 4.
3.5.7
LEVEL input and gain
To help suppress undesired high frequency modulation of the highcut and stereoblend
functions the tuner filtered field strength signal (LEVEL) is lowpassed by a combination of a
1st order RC low-pass at 53kHz (working as anti-aliasing filter) and a 1st-order switched
capacitor lowpass at 2.2kHz.
The second stage is a programmable gain stage to finely adapt the LEVEL signal internally
against tuner spread (see Testmode section 5 LEVELINTERN). The gain is widely
programmable in 16 steps from 0dB to 10dB (step = 0.67dB).
3.5.8
Stereoblend control
The stereoblend control block converts the internal LEVEL voltage (LEVELINTERN) into a
demodulator-compatible analog signal which is used to control the channel separation
between 0dB and the maximum separation. This control range has a fixed upper limit which
is the in-ternal reference voltage REF5V. The lower limit
can be programmed between 29.2% and 58% of REF5V in 4.167% steps (see Figure 17).
To adjust the LEVEL voltage to the proper range two values must be defined: the LEVEL
gain LG and VSBL (see Figure 17). To adjust the voltage where the full channel separation
is reached (VST) the LEVEL gain LG has to be defined. The following equation can be used
to estimate the gain:
REF5V
L G = ------------------------------------------------------------------------------------------Fieldstrengthvoltage [ STEREO ]
The gain LG can be programmed with 4 bits. The MONO voltage VMO (0dB channel
separation) can be chosen selecting VSBL. All the necessary internal reference voltages
36/84
TDA7513T
Functional description
like REF5V are derived from a bandgap circuit, therefore they have a temperature coefficient
which is practically zero.
3.5.9
Highcut control
The highcut control setup is similar to the stereoblend control setup, the starting point VHCH
can be set with 2 bits to be 42, 50, 58 or 66% of REF5V whereas the range can be set to be
17, 22, 28 or 33% of VHCH (see Figure 18).
3.5.10
Noise blanker
In the automotive environment the MPX signal is disturbed by spikes produced for example
by the ignition and by the wiper motor. The aim of the noiseblanker part is to cancel the
audible influence of these spikes. To perform this function the output of the stereo decoder is
held at the curent voltage for a time between 22 and 38μs (programmable). The block
diagram of the noiseblanker is shown in fig.20. In the first stage the spikes are detected but
to avoid a wrong triggering on high frequency (white) noise a complex trigger desensitization
control is implemented. Behind the trigger stage a pulse former generates the "blanking"
pulse
3.5.11
Trigger path
The incoming MPX signal is highpassed by a filter with a corner frequency of 140kHz,
amplified and rectified. The rectified signal (RECT) is lowpassed to generate the signal
PEAK. Also noise at a frequency higher than 140kHz increases PEAK. The lowpass output
voltage can be adjusted by changing the noise rectifier discharge current. The PEAK
voltage is fed to a threshold generator which adds to the PEAK voltage a constant voltage
VTH, thus producing the trigger threshold PEAK+VTH. Both RECT and PEAK+VTH are fed
to a comparator which trig-gers a re-triggerable monoflop. The monoflop output activates
the sample-and-hold circuits in the signalpath for a selectable duration.
3.5.12
Automatic noise controlled threshold adjustment (ATC)
There are mainly two independent possibilities to program the trigger threshold:
a)
Programming the so-called "low threshold" in 8 steps;
b)
Programming the so-called "noise adjusted threshold" in 4 steps
The "low threshold" is active in combination with a good MPX signal without any noise; the
PEAK voltage is less than 1V. The sensitivity in this operating mode is high.
If the MPX signal is noisy the PEAK voltage increases due to the higher noise, which is also
rectified. With increasing of the PEAK voltage the trigger threshold increases, too. This
particular mechanism ("noise adjusted threshold") is programmable in 4 steps.
3.6
Automatic threshold control mechanism
3.6.1
Automatic threshold control by the stereoblend voltage
Besides the noise controlled threshold adjustment there is an additional possibility to
influence the trigger threshold which depends on the stereoblend control.
The point where the MPX signal starts to become noisy is fixed by the RF part. Therefore
also the starting point of the normal noise controlled trigger adjustment is fixed. In some
37/84
Functional description
TDA7513T
cases the behavior of the noiseblanker can be improved by increasing the threshold even in
a region of higher fieldstrength. Sometimes a wrong triggering occures for the MPX signal
often shows distortion in this range which can be avoided even if using a low threshold.
Because of the overlap of this range and the range of the stereo/mono transition it can be
controlled by stereoblend.
This threshold increase is programmable in 3 steps or switched off.
3.6.2
Over deviation detector
If the system is tuned to stations with a high de-viation the noiseblanker might be
erroneously triggered on the higher frequencies of the modulation. To avoid this
unnecessary muting of the signal, the noiseblanker offers a deviation-dependent threshold
adjustment.
By rectifying the MPX signal a further signal representing the actual deviation is obtained.
This is used to increase the PEAK voltage. The circuit offset, gain (and enabling) are
programmable in 3 steps.
3.7
Multipath detector
Using the stereo decoder multipath detector the audible effects of a multipath condition can
be minimized. A multipath condition is detected by rectifying the 19kHz spectrum in the
fieldstrength signal. An external capacitor is used to define the attack and decay times (see
Figure 20). The pin #MULTIPATHTC is externally connected to a capacitor of about 47nF
and the MPIN signal is internally connected to the unfiltered field strength. To avoid losing
the information stored in the external capacitor during AF checks but at the same time to
allow some fast multipath detection capability during the same AF check period, the external
capacitor is disconnected by the MP-Hold switch. This switch is controlled directly by the pin
#RDSMUTE.
Moreover, selecting the "internal influence" in the configuration byte, the channel separation
is automatically reduced during a multipath condition according to the voltage appearing at
the pin #MULTIPATHTC.
3.7.1
Programming
To obtain a good multipath performance an adaptation is necessary. Therefore tha gain of
the 19kHz bandpass is programmable in four steps as well as the rectifier gain. The attack
and decay times can be set by properly choosing the value of the external capacitor.
3.8
Quality detector
The device offers a quality detector output voltage representing the quality of the FM
reception conditions. This voltage is derived from MPX noise information and multipath
information according to the following formula:
Quality = 1.6 (Vnoise -0.8V)+ a (REF5V- VMPOUT)
The noise signal is the PEAK signal of the noise blanker without additional influences. The
multipath information weight "a" can be programmed between 0.7 and 1.15. The circuit
output pin #QUALITY is a low impedance output able to drive external circuitry as well as
suitable to be simply fed to an A/D converter for RDS applications.
38/84
TDA7513T
3.8.1
Functional description
AF search control
The device is supplied with several functionality to support AF checks using the stereo
decoder. As already mentioned before the high ohmic mute feature at the stereo decoder
input avoids any clicks during the jump condition.
It is possible at the same time to evaluate the noise and multipath content of the alternate
frequency by using the Quality detector output. During this time the multipath detector is
automatically switched to a small time constant.
One dedicated pin (#RDSMUTE) is provided in order to separate the audioprocessor-mute
and stereodecoder AF-functions.
3.9
I2C bus interface
I2C bus protocol is supported. This protocol defines any device that sends data onto the bus
as a transmitter, and the receiving device as the receiver.
The device that controls the transfer is a master and device being controlled is the slave.
The master will always initiate data transfer and provide the clock to transmit or receive
operations. The present device always acts as slave, both in transmission and in reception
mode.
3.9.1
Data transition
Data transition on the SDA line must only occur when the clock SCL is LOW. SDA transitions
while SCL is HIGH will be interpreted as START or STOP condition.
3.9.2
Start condition
A start condition is defined by a HIGH to LOW transition of the SDA line while SCL is at a
stable HIGH level. This "START" condition must precede any command and initiate a data
transfer onto the bus. The device continuously monitors the SDA and SCL lines for a valid
START and will not response to any command if this condition has not been met.
3.9.3
Stop Condition
A STOP condition is defined by a LOW to HIGH transition of the SDA while the SCL line is at
a stable HIGH level. This condition terminates the communication between the devices and
forces the bus interface of the device into the initial condition.
3.9.4
Acknowledge
Indicates a successful data transfer. The transmitter will release the bus after sending 8 bits
of data. During the 9th clock cycle the receiver will pull the SDA line to LOW level to indicate
it received the eight bits of data.
3.9.5
Data transfer
During data transfer the device samples the SDA line on the leading edge of the SCL clock.
Therefore, for proper device operation the SDA line must be stable during the SCL LOW to
HIGH transition.
39/84
Functional description
3.9.6
TDA7513T
Device addressing
To start the communication between two devices, the bus master must initiate a start
instruction sequence, followed by an eight bit word corresponding to the address of the
device.
The device recognizes the following two addresses:
–
1100010d
tuner part address
–
1000110d
stereo decoder / audio processor address (APSD)
The last bit of the start instruction defines the type of operation to be performed:
–
when set to "1", a read operation is selected (data are transferred from the device
to the master)
–
when set to "0", a write operation is selected (data are transferred from the master
to the device)
The device connected to the bus will compare its own hardwired addresses with the slave
address being transmitted after detecting a START condition.
After this comparison, the device will generate an "acknowledge" on the SDA line and will
perform either a read or a write operation according to the state of the R/W bit.
3.9.7
Write operation
Following a START condition the master sends a slave address word with the R/W bit set to
"0". The device will generate an "acknowledge" after this first transmission and will wait for a
second word (the subaddress field).
This 8-bit address field provides an access to any of the 64 internal addresses (32
corresponding to the tuner address and 32 corresponding to the stereo decoder / audio
processor address). Upon receipt of the subaddress the device will respond with an
"acknowledge".
At this time, all the following words transmitted to the device will be considered as Data.
The internal address may be automatically incremented if the auto-increment mode is
selected (bit S5 of the subaddress word) .
After each word has been received the device will answer with an "acknowledge".
3.9.8
Read operation
IF the master sends a slave address word with the R/W bit set to "1", the device will transmit
one 8-bit data word.
This data word content changes according to the address corresponding to the tuner or to
the stereo decoder / audio processor. The information are the following:
40/84
TDA7513T
Functional description
Tuner
bit0:
ISS filter, 1 = ON, 0 = OFF
bit1:
ISS filter bandwidth, 1 = 80kHz, 0 = 120kHz
bit2:
MPOUT,1 = multipath present, 0 = no multipath
bit3:
1 = PLL is locked in , 0 = PLL is locked out
bit4:
fieldstrength indicator, 1 = lower than softmute; 0 = higher than softmute threshold
bit5:
adjacent channel indicator, 1 = adjacent channel present, 0 = no adjacent channel
bit6:
deviation indicator, 1 = strong overdeviation present, 0 = no strong overdeviation
bit7:
deviation indicator, 1 = overdeviation present, 0 = no overdeviation
Stereo decoder / audio processor
bit2:
Soft Mute status, 1 = ON, 0 = OFF
bit3:
Stereo mode, 1 = stereo, 0 = mono
Table 28.
ISS Modes 1
sm
ac
ac+
dev
dev+
ISSon
80KHz
0
0
0
0
0
0
0
0
1
X
0
0
1
1
0
1
X
1
X
1
0
1
X
X
0
0
1
1
1
0
0
1
X
0
0
1
1
X
1
X
1
0
Table 29.
ISS Modes 2
sm
ac
ac+
dev
dev+
ISSon
80KHz
0
0
0
0
0
0
0
0
1
0
0
0
1
0
0
1
1
X
X
1
1
0
1
0
1
X
1
0
1
X
X
0
0
1
1
1
0
0
1
X
0
0
1
1
0
1
X
1
0
1
1
1
1
X
1
1
41/84
Functional description
TDA7513T
Figure 4.
Softmute timing
Figure 5.
Bass control
@ Fc = 80Hz, Q = 1
15.0
EXT.
MUTE
1
10.0
5.0
+SIGNAL
0.0
REF
-5.0
-SIGNAL
-10.0
1
I2C BUS
OUT
D97AU634
Figure 6.
-15.0
10.0
Time
Bass center
@ Gain=14dB Q=1
Figure 7.
15.0
15.0
12.5
12.5
10.0
10.0
7.5
7.5
5.0
5.0
2.5
2.5
Figure 8.
42/84
100.0
1.0K
10.0K
Bass normal and DC mode
@ Gain = 14dB, fc = 80Hz
10.0
10.0K
Bass quality factors
@ Gain = 14dB, fc = 80Hz
15.0
12.5
10.0
10.0
5.
0
7.5
0.
0
5.0
5.0
2.5
-10.0
0.0
-15.0
100.0
1.0K
10.0K
100.0
Figure 9.
15.0
10.0
1.0K
0.0
0.0
10.0
100.0
10.0
1.0K
10.0K
Mid control
@ fc = 1KHz, Q = 1
100.
0
1.0K
10.0K
TDA7513T
Functional description
Figure 10. Mid center frequency
@ Gain =14dB, Q = 1
Figure 11. Mid Q factor
@ fc=1KHz, Gain =14dB
15.0
15.0
12.5
12.5
10.0
10.0
7.
5
7.
5
5.
0
5.
0
2.
5
2.
5
0.
0
0.
0
10.0
100.
0
1.0K
10.0K
Figure 12. Treble control
@ fc = 17.5KHz
10.0
100.
0
1.0K
10.0K
Figure 13. Treble center frequencies
@ Gain = 14dB
15.0
15.0
10.0
12.5
10.0
5.0
7.5
0.0
5.0
-5.0
2.5
-10.0
0.0
-15.0
10.0
100.0
1.0K
10.0K
10.0
100.0
1.0K
10.0K
43/84
Functional description
TDA7513T
Figure 14. Block diagram of the stereo decoder
Figure 15. Signal during stereo decoder’s softmute
SOFTMUTE
COMMAND
t
STD MUTE
t
VO
D97AU638
Figure 16. Internal stereo blend characteristics
44/84
t
TDA7513T
Functional description
Figure 17. Relationship between unadjusted (LEVEL) and adjusted (LEVELITERN)
filtered field strength signals
INTERNAL
VOLTAGES
INTERNAL
VOLTAGES
SETUP OF VST
SETUP OF VMO
LEVEL INTERN
LEVEL INTERN
REF 5V
REF 5V
58%
LEVEL
VSBL
VSBL
VMO
VST
29%
t
FIELDSTRENGHT VOLTAGE
modAU639
VMO
VST
t
FIELDSTRENGHT VOLTAGE
Figure 18. Highcut characteristics
LOWPASS
TIME CONSTANT
3•τDeemp
τDeemp
VHCL
VHCH
FIELDSTRENGHT
D97AU640
Figure 19. Noise blanker block diagram
MPX
RECTIFIER
RECT
+
-
+
LOWPASS
CONTROL
HOLDN
VTH
PEAK
MPOUT
MONOFLOP
THRESHOLD
GENERATOR
+
ADDITIONAL
THRESHOLD
CONTROL
modAU856
45/84
Functional description
Figure 20. Multipath detector block diagram
46/84
TDA7513T
TDA7513T
Software specifications
4
Software specifications
4.1
Tuner section address organization
Table 30.
Address organization (tuner section)
MSB
LSB
Subaddr.
D7
D6
0
STBY
Current
select
1
D5
D4
D3
D2
Low current
Lock
activation delay
detainable
D1
D0
Charge Pump Control
and STBY
High current
Phase
difference
threshold
AM/FM
Function
fref
VCOadj
BYPASS clockenab
PLL Lock Detector, FM
mode and tests
2
counter LSB
PLL Counter 1 (LSB)
3
counter MSB
PLL Counter 2 (MSB)
4
counter LSB
PLL Reference Counter
2 (LSB)
5
counter MSB
PLL Reference Counter
2 (MSB)
6
7
FM ISS
DD
FM audio amp.
disable thr
mute depth
@ weak
FS
SEEK
AM prescaler
8
AM stop station
9
tSAMPLE
10
11
FM antenna adjustment
FM Antenna Adjustment
and FM Mute Depth
FM RF adjustment
FM RF Adjustment, AM
prescaler and Seek
IFC
enable
IF Counter Control 1
and AM S.S. Threshold
Df
IF Counter Control 2
(central frequency and
sampling time)
tCENTER
IF Counter Reference
(LSB)
counter LSB
IFC AM/FM
IF Counter Reference
(MSB) and IF Counter
Mode Select
counter MSB
AMIF2amp
12
13
AMUNAGC
MPQUAL
test
test
ACmute
FM demod
noise blanker
AM
Smeter
extens
FM demodulator fine adjust
FM SMut
enable
AM Ultra Narrow AGC
Thresh., AM IF2
Amplifier Gain, FM
Softmute Enable and
AC test
FM demodulator Adjust,
FM demod noise
blanker and MP test
47/84
Software specifications
Table 30.
TDA7513T
Address organization (tuner section) (continued)
MSB
Subaddr.
14
D7
LSB
D6
D5
ISS AC
narrowband
threshold
D4
D3
D2
D1
D0
ISS AC wideband
threshold
ISS AC
gain
ISS AC
HP/BP
ISS
30KHz on
Quality Detection
Adjacent Channel
test
Smet
unfilter
ed
ISS MP
center
ISS MP
ctrl on
Quality Detection
Multipath
15
ISS MP
defeat AC
ISS mode
ISS MP
threshold
16
0
ISS DD off
threshold
ISS DD
narrow/wide
threshold
17
ISS center
18
SO mode
19
20
21
ISS MP gain
ISS
80/120
ISS on
VCO
adj
start
FM stop station
AC QUAL
test
man
SET 456
23
IFT2 adjust
man
ENIFC
AdjChan mute gain
FMSmslider
IFT1 adjust
Clkse
p
FMIFamp2
Quality Detection
Deviation
Quality ISS Filter
PLL test, 456KHz VCO
adiustment start (auto
mode)
FM soft mute
AdjChan mute clamp
AM Smeter filter TC
ISS
enable
test PLL
Manual VCO frequency
22
24
ISS DD time constant
ISS time constant
Manual /
auto
Function
XTAL adjustment
456KHz VCO
adjustment (manual
mode)
FM Stop Station and
soft Mute Thresholds
Adjacent mute gain,
clamping threshold and
test
FM Smeter slider and
AM Smeter filter Time
Constant
IFT1 adjust
XTAL adjustment and
FM IF Amp2
25
AMWAGC
FMNAGCkey
AM WAGC an FM
MAGC keying
26
AMNAGC
FM demod ref frequency
divider
AM NAGC an FMdemod
ref frequency divider
27
test ISS
test ISS
MP/AC
28
ISS filter test
29
Smeter pin test
30
AdjChan mute
disable @ low FS
AdjChan mute
BP/HP
31
Turner quality
AdjChan gain
Turner quality
multipath gain
48/84
ISS testing
Test ISS
test TURNER
ISS testing
Tuner and Smeter test
AdiChan mute threshold
AdjChan mute disable,
filtering and threshold
FS ISS activation
Tuner Quality
AdjChannel and
Multipath gain, FS ISS
Activation
TDA7513T
Software specifications
Table 31.
Address organization addresses
MSB
LSB
D7
D6
D5
D4
D3
D2
D1
D0
1
1
0
0
0
1
0
R/W
Table 32.
Address organization subaddress
MSB
LSB
S7
S6
S5
X
X
autoincr
Table 33.
S4
S3
S2
S1
subaddress
Address organization read mode: ISS outputs
MSB
4.2
S0
LSB
S7
S6
S5
S4
S3
S2
S1
S0
DEV+
DEV
AC
FS
INLOCK
MP
BW
ON
Tuner section subaddresses
Table 34.
Subaddress organisation (tuner section)
MSB
D7
LSB
D6
D5
D4
D3
D2
D1
Function
D0
Charge pump
0
0
0
0
High current = 0mA
0
0
0
1
High current = 0.5mA
0
0
1
0
High current = 1mA
0
0
1
1
High current = 1.5mA
1
1
1
1
High current = 7.5mA
0
0
Low current = 0μA
0
1
Low current = 50μA
1
0
Low current = 100μA
1
1
Low current = 150μA
0
Select low current
1
Select high current
Tuner stand-by
0
0
0
0
0
Tuner StandBy OFF
1
0
0
0
1
Tuner StandBy ON
49/84
Software specifications
Table 35.
TDA7513T
Subaddress 1: PLL lock detector, FM mode and test
MSB
D7
LSB
D6
D5
D4
D3
D2
D1
Function
D0
Charge pump
0
VCO adjust lock Disable
1
VCO adjust lock Enable
0
fref BYPASS Disable
1
fref BYPASS Enable
Tuner / PLL AM/FM mode
0
Select AM mode
1
Select FM mode
Lock detector control
0
0
PD phase difference threshold 10ns
0
1
PD phase difference threshold 20ns
1
0
PD phase difference threshold 30ns
1
1
PD phase difference threshold 40ns
0
0
Not valid
0
1
Activation delay 4x1/fREF
1
0
Activation delay 6x1/fREF
1
1
Activation delay 8x1/fREF
0
Lock detector doesn’t control charge
pump
1
Lock detector controls charge pump
Table 36.
Subaddress 2: PLL counter 1 (LSB)
MSB
50/84
LSB
Function
D7
D6
D5
D4
D3
D2
D1
D0
0
0
0
0
0
0
0
0
LSB = 0
0
0
0
0
0
0
0
1
LSB = 1
0
0
0
0
0
0
1
0
LSB = 2
1
1
1
1
1
1
0
0
LSB = 252
1
1
1
1
1
1
0
1
LSB = 253
1
1
1
1
1
1
1
0
LSB = 254
1
1
1
1
1
1
1
1
LSB = 255
TDA7513T
Software specifications
Table 37.
Subaddress 3: PLL counter 2 (MSB)
MSB
LSB
Function
D7
D6
D5
D4
D3
D2
D1
D0
0
0
0
0
0
0
0
0
MSB = 0
0
0
0
0
0
0
0
1
MSB = 256
0
0
0
0
0
0
1
0
MSB = 512
1
1
1
1
1
1
0
0
MSB = 64768
1
1
1
1
1
1
0
1
MSB = 65024
1
1
1
1
1
1
1
0
MSB = 65280
1
1
1
1
1
1
1
1
MSB = 65536
Note: 1 Swallow mode:fVCO/fSYN = LSB + MSB + 32
Table 38.
Subaddress 4: reference counter 1 (LSB)
MSB
LSB
Function
D7
D6
D5
D4
D3
D2
D1
D0
0
0
0
0
0
0
0
0
LSB = 0
0
0
0
0
0
0
0
1
LSB = 1
0
0
0
0
0
0
1
0
LSB = 2
1
1
1
1
1
1
0
0
LSB = 252
1
1
1
1
1
1
0
1
LSB = 253
1
1
1
1
1
1
1
0
LSB = 254
1
1
1
1
1
1
1
1
LSB = 255
51/84
Software specifications
Table 39.
TDA7513T
Subaddress 5: Reference counter 2 (MSB)
MSB
LSB
Function
D7
D6
D5
D4
D3
D2
D1
D0
0
0
0
0
0
0
0
0
MSB = 0
0
0
0
0
0
0
0
1
MSB = 256
0
0
0
0
0
0
1
0
MSB = 512
1
1
1
1
1
1
0
0
MSB = 64768
1
1
1
1
1
1
0
1
MSB = 65024
1
1
1
1
1
1
1
0
MSB = 65280
1
1
1
1
1
1
1
1
MSB = 65536
Note: 1 fVCO/fSYN = LSB + MSB + 1
Table 40.
Subaddress 6: FM antenna adjustment and FM mute depth
MSB
D7
LSB
D6
D5
D4
D3
D2
D1
Function
D0
FM antenna adj (proportional to Vtuning)
-
-
-
0
1
1
1
1
-30%
0
1
1
1
0
-28%
0
0
0
0
1
-2%
0
0
0
0
0
-0%
1
0
0
0
0
+0%
1
0
0
0
1
+2%
-
-
-
-
-
-
1
1
1
1
0
+28%
1
1
1
1
1
+30%
FM soft mute depth
0
0
25dB
1
0
20dB
0
1
16dB
1
1
13.5dB
ISS deviation detector disabling threshold
relative to weak fild ISS activation threshold (byte 31 bit 3-00
52/84
0
-100mV
1
+100mV
TDA7513T
Software specifications
Table 41.
Subaddress 7: FM RF adjustment AM prescaler and seek
MSB
D7
LSB
D6
D5
D4
D3
D2
D1
Function
D0
FM RF adj (proportional to Vtuning)
-
-
-
-
-
-
0
1
1
1
1
-30%
0
1
1
1
0
-28%
-
-
-
-
-
-
0
0
0
0
1
-2%
0
0
0
0
0
-0%
1
0
0
0
0
+0%
1
0
0
0
1
+2%
-
-
-
-
-
-
1
1
1
1
0
+28%
1
1
1
1
1
+30%
AM VCO divider ratio
0
0
10
0
1
8
1
0
6
1
1
4
Seek mode
0
Seek OFF
1
Seek ON
Table 42.
Subaddress 8: IF counter control 1 and AM S.S. threshold
MSB
D7
LSB
D6
D5
D4
D3
D2
D1
Function
D0
IF counter control
0
0
0
0
Not valid
0
0
1
Not valid
0
1
0
Not valid
0
1
1
Δf = 6.25kHz (FM) 1kHz (AM UPC)
1
0
0
Δf = 12.5kHz (FM) 2kHz (AM UPC)
1
0
1
Δf = 25kHz (FM) 4kHz (AM UPC)
1
1
0
Δf = 50kHz (FM) 8kHz (AM UPC)
1
1
1
Δf = 100kHz (FM) 16kHz (AM UPC)
IF counter disable/stand by
53/84
Software specifications
Table 42.
TDA7513T
Subaddress 8: IF counter control 1 and AM S.S. threshold (continued)
MSB
D7
LSB
D6
D5
D4
D3
D2
D1
Function
D0
1
IF counter enable
AM stop station threshold
0
0
0
0
0mV
0
0
0
1
150mV
-
-
-
-
1
1
1
0
2100mV
1
1
1
1
2250mV
Table 43.
-
-
-
LSB
D6
-
Subaddress 9: If counter control 2
MSB
D7
-
D5
D4
D3
D2
D1
Function
D0
FM antenna adj (proportional to Vtuning)
54/84
0
0
0
0
0
fcenter = 10.60625MHz (FM) 449KHz (AM)
0
0
0
0
1
fcenter = 10.61250MHz (FM) 450KHz (AM)
0
1
0
1
0
fcenter = 10.66875MHz (FM) 459KHz (AM)
0
1
0
1
1
fcenter = 10.67500MHz (FM) 460KHz (AM)
0
1
1
0
0
fcenter = 10.68125MHz (FM) 461KHz (AM)
0
1
1
0
1
fcenter = 10.68750MHz (FM) 462KHz (AM)
0
1
1
1
0
fcenter = 10.69375MHz (FM) 463KHz (AM)
0
1
1
1
1
fcenter = 10.70000MHz (FM) 464KHz (AM)
1
0
0
0
0
fcenter = 10.70625MHz (FM) 465KHz (AM)
1
0
0
0
1
fcenter = 10.71250MHz (FM) 466KHz (AM)
1
1
1
1
1
fcenter = 10.80000MHz (FM) 480KHz (AM)
0
0
0
tsample = 20.48ms (FM) 128ms (AM)
0
0
1
tsample = 10.24ms (FM) 64ms (AM)
0
1
0
tsample = 5.12ms (FM) 32ms (AM)
0
1
1
tsample = 2.568ms (FM) 16ms (AM)
1
0
0
tsample = 1.28ms (FM) 8ms (AM)
1
0
1
tsample = 640μs (FM) 4ms (AM)
1
1
0
tsample = 320μs (FM) 2ms (AM)
1
1
1
tsample = 160μs (FM) 1ms (AM)
TDA7513T
Software specifications
Table 44.
Subaddress 10: IF counter reference (LSB)
MSB
LSB
Function
D7
D6
D5
D4
D3
D2
D1
D0
0
0
0
0
0
0
0
0
LSB = 0
0
0
0
0
0
0
0
1
LSB = 1
0
0
0
0
0
0
1
0
LSB = 2
1
1
1
1
1
1
0
0
LSB = 252
1
1
1
1
1
1
0
1
LSB = 253
1
1
1
1
1
1
1
0
LSB = 254
1
1
1
1
1
1
1
1
LSB = 255
Table 45.
Subaddress 11: IF counter reference (MSB) and IF counter mode select
MSB
D7
LSB
D6
Function
D5
D4
D3
D2
D1
D0
0
0
0
0
0
0
MSB = 0
0
0
0
0
0
1
MSB = 256
0
0
0
0
1
0
MSB = 512
1
1
1
1
0
1
MSB = 15616
1
1
1
1
1
0
MSB = 15872
1
1
1
1
1
1
MSB = 16128
IF counter mode
0
0
not valid
0
1
IF counter FM mode (10.7KHz)
1
0
IF counter AM mode (450KHz)
0
0
not valid
Note: 1 fOSC/fTIM = LSB + MSB + 1
55/84
Software specifications
Table 46.
TDA7513T
Subaddress 12: AM IF amplifier gain
Ultra narrow band AGC threshold, FM Smeter and AC test
MSB
D7
LSB
D6
D5
D4
D3
D2
D1
Function
D0
test FM FS soft mute enable (FM mode)
[bit shared with AM IF AMP Gain]
0
FS Soft mute disabled
1
FS Soft mute enabled
test AC mute (FM mode)
[bit shared with AM IF AMP Gain]
0
test mode FM demod Vout is disconnected
from users
1
no test (std)
AM IF AMP Gain (am mode)
0
0
0
Not used
0
0
1
53.2dB
0
1
0
55.8dB
0
1
1
60.2dB
1
0
0
58.3dB
1
0
1
61.7dB
1
1
0
62.8dB
1
1
1
64.8dB
AM UNAGC enable
1
Enable AM UNAGC
0
Disable AM UNAGC
AM Ultra Narrow Band AGC Threshold
56/84
0
0
0
0
74.4dBmV @SG
0
0
0
1
78.8dBmV @SG
0
0
1
0
80.0dBmV @SG
0
0
1
1
80.7dBmV @SG 119.5dBmV @
IF2AMPOUT
0
1
0
0
53.2dBmV @SG
0
1
0
1
77.1dBmV @SG
0
1
1
0
78.5dBmV @SG
0
1
1
1
79.4dBmV @SG
1
0
0
0
42.7dBmV @SG
1
0
0
1
65.8dBmV @SG
TDA7513T
Software specifications
Table 46.
Subaddress 12: AM IF amplifier gain (continued)
Ultra narrow band AGC threshold, FM Smeter and AC test (continued)
MSB
LSB
Function
1
0
1
0
77.6dBmV @SG
1
0
1
1
78.5dBmV @SG
1
1
0
0
32.6dBmV @SG 113.5dBmV @
IF2AMPOUT
1
1
0
1
55.0dBmV @SG
1
1
1
0
73.3dBmV @SG
1
1
1
1
77.6dBmV @SG
Table 47.
Subaddress 13: Demodulator fine adjust and noise blanker, MP qual test
MSB
D7
LSB
D6
D5
D4
D3
D2
D1
Function
D0
Fm audio demodulator current adjust
0
0
0
0
0
0μA
0
0
0
0
1
0.167μA
-
-
-
-
-
-
0
1
1
1
1
2.51μA
1
0
0
0
0
0μA
0
0
0
0
1
0.167μA
1
-
-
-
-
-
1
1
1
1
1
2.51μA
Demodulator Noise AM Smeter
Blanker
extension
0
0
NB1&2 on
(impvic&lontmas)
0
1
NB1 on (impvicmas) old (10.7MHz)
1
0
NB2 on
(implontmas0
new (450kHz)
1
1
NB1&2 off
new (450kHz)
old (10.7MHz)
Multipath (ISS) test
MP test OFF
MP test ON (ISS quality detector MP input
from #ACinL, ISS MP filter+rect output to
Smeter test muxer if input 12 is selected
57/84
Software specifications
Table 48.
TDA7513T
Subaddress 14: Quality detection adjacent channel
MSB
D7
LSB
D6
D5
D4
D3
D2
D1
Function
D0
ISS Filter for WB
0
ISS filter 30KHz OFF
1
ISS filter 30KHz ON
ISS Adjacent Channel filter configuration
0
AC highpass frequency 100KHz
1
AC bandpass frequency 100KHz
AC gain
0
32dB
1
38dB
ISS Adjacent Channel threshold
0
0
0
AC wide band threshold 0.25V
0
0
1
AC wide band threshold 0.35V
0
1
0
AC wide band threshold 0.45V
1
1
1
AC wide band threshold 0.95V
0
0
AC narrow band threshold 0V
0
1
AC narrow band threshold 0.1V
1
0
AC narrow band threshold 0.2V
1
1
AC narrow band threshold 0.3V
Table 49.
Subaddress 15: Quality detection multipath and Smeter test
MSB
D7
LSB
D6
D5
D4
D3
D2
D1
Function
D0
ISS Multipath control enabling
0
Multipath control ON
1
Multipath control OFF
ISS Multipath filter center frequncy
0
MP Bandpass frequency 19KHz
1
MP Bandpass frequency 31KHz
ISS Multipath filter input selector (test mode)
0
Smeter unfilt test OFF
1
Smeter unfilt test ON
ISS Multipath threshold
58/84
TDA7513T
Software specifications
Table 49.
Subaddress 15: Quality detection multipath and Smeter test (continued)
MSB
D7
LSB
D6
D5
D2
D1
Function
D4
D3
D0
0
0
0.5V
0
1
0.75V
1
0
1V
1
1
1.25V
ISS mode
0
0
Application mode 1
0
1
Application mode 2
ISS Multipath control mode
0
MP control AC+ detection
1
MP control the AC and AC+ detection
Table 50.
Subaddress 16: Quality detection deviation
MSB
D7
LSB
D6
D5
D4
D3
D2
D1
Function
D0
ISS deviation detector ime constant
0
0
0
charge current 34μA; discharge current
6μA
0
0
1
charge current 32μA; discharge current
8μA
0
1
0
charge current 30μA; discharge
curren10μA
1
0
0
charge current 26μA; discharge current
14μA
1
1
1
charge current 20μA; discharge current
20μA
ISS deviation detector thresholds
0
0
DEV Threshold for ISS narrow-wide
30KHz
0
1
DEV Threshold for ISS narrow-wide
45KHz
1
0
DEV Threshold for ISS narrow-wide
60KHz
1
1
DEV Threshold for ISS narrow-wide
75KHz
0
0
DEV Threshold for ISS filter OFF ratio 1
0
1
DEV Threshold for ISS filter OFF ratio 1.3
59/84
Software specifications
Table 50.
TDA7513T
Subaddress 16: Quality detection deviation (continued)
MSB
D7
LSB
D4
D3
D2
D1
Function
D6
D5
D0
1
0
DEV Threshold for ISS filter OFF ratio 1.4
1
1
DEV Threshold for ISS filter OFF ratio 1.5
0
not used
1
AUX set int80
Table 51.
Subaddress 17: Quality ISS filter
MSB
D7
LSB Function Function Function Function
D6
D5
D4
D3
D2
D1
D0
ISS automatic control fron AC detector
0
ON (AC drives ISSTC)
1
OFF (AC has no influence on ISSTC)
ISS manual control
0
automatic control only
1
manual force filter ON
0
manual force BW 120KHz
1
manual force BW 80KHz
ISS time constant
current:
discharge
chrg mid
chrg
narrow
0
0
0
1μA
74μA
124μA
0
0
1
3μA
72μA
122μA
0
1
0
5μA
70μA
120μA
1
0
0
9μA
66μA
116μA
1
1
1
15μA
60μA
110μA
ISS filter center frequency
60/84
0
0
shift from 450kHz
-20KHz
0
1
-10KHz
1
0
0KHz
1
1
10KHz
TDA7513T
Software specifications
Table 52.
Subaddress 18: PLL rest, 456KHz VCO adjust start, ISS MP Gain and SD
out mode
MSB
D7
LSB
D6
D5
D4
D3
D2
D1
Function
D0
PLL test mode
0
0
0
0
0
1
0
1
0
0
1
1
1
0
0
1
0
1
1
1
0
1
1
1
Automatic 456KHz VCO adjustment
0
Waiting
1
START
ISS multipath filter gain
0
0
ISS MP Gain 2dB
0
1
ISS MP Gain 13dB
1
0
ISS MP Gain 16dB
SD pin configuration
0
0
ISS (IFC and FM SM Stop)
0
1
IF Counter out
1
0
FM Smeter Stop
1
1
Logic 1
Table 53.
Subaddress 19: 456KHz VCO adjustment (manual mode)
MSB
D7
LSB
D6
0
D5
0
D4
0
D3
0
D2
0
D1
Function
D0
0
Enable IFC (I2CBUS) OFF
1
Enable IFC (I2CBUS) ON
0
Enable 456KHz VCO adj procedure
(I2CBUS) OFF
1
Enable 456KHz VCO adj procedure
(I2CBUS) ON
VCO 456KHz frequency adjust (I2CBUS)
minfreq
61/84
Software specifications
Table 53.
TDA7513T
Subaddress 19: 456KHz VCO adjustment (manual mode) (continued)
MSB
D7
LSB
D6
D5
D4
D3
D2
0
0
0
0
1
-
-
-
-
-
0
1
1
1
1
1
0
0
0
0
-
-
-
-
-
1
1
1
1
0
1
1
1
1
1
D1
Function
D0
VCO 456KHz frequency adjust (I2CBUS)
maxfreq
0
Manual adjustment procedure (I2CBUS)
1
Automatic adjustment procedure (State
Machine)
Table 54.
Subaddress 20: FM stop station and soft mute threshold
MSB
D7
LSB
D6
D5
D4
D3
D2
D1
Function
D0
Soft mute threshold on Smeter
0
0
0
0
0mV
0
0
0
1
100mV
-
-
-
-
-
1
1
1
0
1.4V
1
1
1
1
1.5V
FM stop station threshold on Smeter
0
0
0
0
400mV
0
0
0
1
800mV
-
-
-
-
-
1
1
1
0
3.2V
1
1
1
1
3.6V
Table 55.
Subaddress 21: Adjacent channel mute
MSB
D7
LSB
D6
D5
D4
D3
D2
D1
Function
D0
Adj channel mute gain
62/84
0
0
0
10.4dB
0
0
1
11.4dB
TDA7513T
Software specifications
Table 55.
Subaddress 21: Adjacent channel mute (continued)
MSB
D7
LSB
D6
D5
D4
D3
Function
D2
D1
D0
0
1
0
12.4dB
0
1
1
13.4dB
1
0
0
14.4dB
1
0
1
15.4dB
1
1
0
16.4dB
1
1
1
17.4dB
Adj channel mute clamp
0
0
0
0
500mV
0
0
0
1
600mV
-
-
-
-
-
1
0
0
0
1.3V
-
-
-
-
-
1
1
1
0
1.9V
1
1
1
1
2V
Adjacent Channel (ISS) test
0
AC test OFF
1
AC test ON (ISS qualitydetector AC input
from #ACinL,
ISS AC filter+rect output to Smeter test
muxer if input 12 is selected)
Table 56.
Subaddress 22: FM Smeter Sider and AM Smeter time constant
MSB
D7
LSB
D6
D5
D4
D3
D2
D1
Function
D0
FM Smeter sider
0
0
0
0
0
0V
0
0
0
0
1
0.48V
-
-
-
-
-
-
1
1
1
1
0
1.45V
1
1
1
1
1
1.5V
AM Smeter filter TC (resistor value)
0
0
0
75KΩ
1
0
0
50KΩ
0
1
0
35KΩ
63/84
Software specifications
Table 56.
TDA7513T
Subaddress 22: FM Smeter Sider and AM Smeter time constant
MSB
LSB
D7
D6
D5
1
1
0
24KΩ
0
0
1
16KΩ
Table 57.
D4
D3
D2
D1
Function
Subaddress 23: IFT Adjust
MSB
D7
D0
LSB
D6
D5
D4
D3
D2
D1
Function
D0
IFT1 Adjust
0
0
0
0
0pF
0
0
0
1
0.55pF
-
-
-
-
-
0
1
1
1
7.7pF
1
1
1
1
8.25pF
IFT2 Adjust
0
0
0
0
75pF
1
0
0
0
50pF
-
-
-
-
-
0
1
1
1
22.4pF
1
1
1
1
24pF
Table 58.
Subaddress 24: XTAL and FM IF AMP 2 Gain
MSB
D7
LSB
D6
D5
D4
D3
D2
D1
Function
D0
XTAL adjust Cload
0
0
0
0
0
0pF
0
0
0
0
1
0.625pF
0
0
0
1
0
1.25pF
0
0
1
0
0
2.5pF
0
1
0
0
0
5pF
0
0
1
0
0
10pF
0
1
0
0
0
10.4pF
XTAL TEST)
64/84
0
xtal clock
1
clocksep (testing)
TDA7513T
Software specifications
Table 58.
Subaddress 24: XTAL and FM IF AMP 2 Gain (continued)
MSB
D7
LSB
D6
D5
D4
D3
D2
D1
Function
D0
FM IF Amp2 Gain
0
0
6dB
0
1
8dB
1
0
10dB
1
1
not used
Table 59.
Subaddress 25: FM NAGC key and AM WAGC
MSB
D7
LSB
D6
D5
D4
D3
D2
D1
Function
D0
FM Narrow ACGC key IF input
0
0
0
36dB
0
0
1
42dB
0
1
0
48dB
0
1
1
54dB
1
0
0
60dB
1
0
1
66dB
1
1
0
72dB
1
1
1
keying OFF
AM WAGC starting point @ MIX1IN
0
0
0
0
0
88dBμV
-
-
-
-
-
-
1
1
1
1
1
106dBμV
Table 60.
Subaddress 26: AM NAGC key and FM demod ref frequency test
MSB
D7
LSB
D6
D5
D4
D3
D2
D1
D0
1
1
0
Function
test for FM demod ref freq divider
(standard configuration)
AM WAGC starting point @ MIX2IN
0
0
0
0
0
85dBμV
-
-
-
-
-
-
1
1
1
1
1
103dBμV
65/84
Software specifications
Table 61.
TDA7513T
Subaddress 27: ISS tests
MSB
D7
LSB
D6
D5
D4
D3
D2
D1
Function
D0
ISS test multiplexer (1)
0
0
0
0
0
0
0
0
no test
0
0
0
0
0
0
0
1
test MP thresholds
0
0
0
0
0
0
1
0
test ACN thresholds
0
0
0
0
0
1
0
0
test DW thresholds
0
0
0
0
1
0
0
0
test D thresholds
0
0
0
1
0
0
0
0
test ACW thresholds
0
0
1
0
0
0
0
0
test ac
0
1
0
0
0
0
0
0
test MDSCO
1
0
0
0
0
0
0
0
test ISSout
Table 62.
Subaddress 28: ISS tests
MSB
D7
LSB
D6
D5
D4
D3
D2
D1
Function
D0
ISS test multiplexer (2)
0
0
0
0
0
0
no test
0
0
0
0
0
1
test dev+
0
0
0
0
1
0
test dev+
0
0
0
1
0
0
test ref dev
0
0
1
0
0
0
test dem Vout
0
1
0
0
0
0
test ISS in
1
0
0
0
0
0
test ISSC ik Enble
ISS test in
0
test in ISS disable
1
test in ISS enable
ISS test clock
66/84
0
test ISS clock disable
1
test ISS clock enable
TDA7513T
Software specifications
Table 63.
Subaddress 29: Tuner and Smeter tests
MSB
D7
LSB
D6
D5
D4
D3
D2
D1
FUNCTION
D0
SMETER test multiplexer
0
0
0
0
0
0
test off
0
0
0
0
0
1
test AMAGC1W
0
0
0
0
1
0
test AMAGC1N
0
0
0
0
1
1
test AMAGC1UN
0
0
0
1
0
0
test FM Smute Threshold
0
1
0
1
0
1
test FMSMStop
0
0
0
1
1
0
test AMIF2Amp
0
0
0
1
1
1
test AMSDDAC
0
0
1
0
0
0
test FMKAGC
0
0
1
0
0
1
test FMACMDisable
0
0
1
0
1
0
test FMDemodAdjON
0
0
1
0
1
1
test FMDemodAdjONMute
0
0
1
1
0
0
test FMACMuteRct
0
0
1
1
0
1
test FSISSONThreshold
0
0
1
1
1
0
test FSISSON
0
0
1
1
1
1
test ISSInput
0
Smeter OUT ACD enable
1
test Smete IN
0
Smeter filter force enable
1
test TMODE1OUT (byte 27/28)
Table 64.
Subaddress 30: Adjacent channel mute
MSB
D7
LSB
D6
D5
D4
D3
D2
D1
Function
D0
Adjacent channel mute threshold
0
0
0
0
0mV
0
0
0
1
28.7mV
-
-
-
-
-
1
0
0
0
229.3mV
-
-
-
-
-
1
1
1
0
401.3mV
1
1
1
1
430mV
Adjacent channel mute filter configuration
67/84
Software specifications
Table 64.
TDA7513T
Subaddress 30: Adjacent channel mute (continued)
MSB
D7
LSB
D6
-
-
D5
D4
D3
D2
D1
Function
D0
0
AdjChannel Mute HighPass filter 1
1
AdjChannel Mute BandPass filter 1
0
AdjChannel Mute HighPass filter 2
1
AdjChannel Mute BandPass filter 2
Adjacent channel mute disable @ low FS
0
0
threshold 1V
0
1
threshold 1.33V
1
0
threshold 1.66V
1
1
threshold 2V
Table 65.
Subaddress 31: Adjacent channel and multipath gain, weak field ISS
threshold
MSB
D7
LSB
D6
D5
D4
D3
D2
D1
Function
D0
Weak field ISS activation threshold
0
0
0
0
-450mV
0
0
0
1
-385.7mV
-
-
-
-
-
0
1
1
1
-0mV
1
0
0
0
+0mV
1
0
0
1
64.28mV
-
-
-
-
-
1
1
1
0
385.7mV
1
1
1
1
450mV
Tuner quality multipath gain
0
0
0 (OFF) dB
0
1
-4dB
1
0
0dB
1
1
4dB
Tuner quality adjacent channel gain
68/84
0
0
(OFF)
0
1
-4dB
1
0
0dB
1
1
4dB
TDA7513T
Software specifications
4.3
Stereodecoder and audioprocessor section
Table 66.
Address organisation
MSB
Subaddr.
D7
0
spkr
coupl
LSB
D6
D5
D4
D3
D2
in gain
1
D1
Function
D0
source selector
volume steps
Source selector, in gain,
peaker coupling
Volume
2
not
used
treble center freq
treble steps
Treble
3
bass
DC
mode
bass Q factor
bass steps
Bass
4
volume steps
Speaker attenuator Left
Front
5
volume steps
Speaker attenuator Right
Front
6
volume steps
Speaker attenuator Left
Read
7
volume steps
Speaker attenuator Right
Rear
bass center
frequency
8
NB time
9
deemp
pilot thr.
h.
NB
peak
dis
10
overdev. adj
NB on
not
used
force
mono
auto
zero
status
mpath.
infl.
12
mpath.
NB field strength
Quality del. coeff.
infl.
gain
VHCL
mpath. det.
Reflect. Gain
14
roll-off
compe
ns.
15
AP test
ON
VHCH
mpath.
charge
mpath.i
nt. infl
low threshold
max high out
NB field strength
threshold
mpath.det gain
level gain
400K
ON
std in gain
Stereo decoder mute, st
std
dec in-gain, mono, NB
mute
PEAK disch curr., pilot
disable
thresh, deemph.
noise
contr.thresh.
11
13
soft mute time
I2C soft
Soft mute, soft mute time,
mute
Bass, Noise blanker time
off
test signal selection
Noise Blanker
high cut High cut, multipath
on
influence
not
used
Fieldstrength control
Noise rectifier disch.
resistor, Multipath del.
noise rect.disch,
bandpass gain, multipath
R
internal influence,
reflection gain
roll-off compensation
Itest
SC
OFF
Roll-off compensation,
level gain
SID
TEST BYTE
test ON
69/84
Software specifications
Table 66.
TDA7513T
Address organisation (continued)
MSB
Subaddr.
16
17
LSB
D7
D6
D5
D4
D3
AM high cut control corner frequency
mid
Qfactor
D0
mpath
test
mid steps
not used
Table 67.
D1
quality noise gain
mid center
frequency
18
D2
Function
AMHCC, Quality noise
gain, test
Mid
VSBL
Stereo blend
Stereodecoder and audioprocessor section SUBADDRESS
MSB
LSB
D7
D6
D5
testcon
azhold
autoincr
Table 68.
D4
D3
D2
D1
subaddress
Stereodecoder and audioprocessor section READ MODE
MSB
LSB
S7
S6
Table 69.
S5
S4
S3
S2
STEREO
SMON
S1
LSB
S7
S6
S5
S4
S3
S2
S1
S0
1
0
0
0
1
1
0
R/W
Subaddress organization (stereodecoder and
audioprocessor section)
Table 70.
SUBADDRESS 0: Source selector, in-gain, sSpeaker coupling
MSB
D7
LSB
D6
D5
D4
D3
D2
D1
Function
D0
Source selector
70/84
S0
Stereodecoder and audioprocessor section ADDRESS
MSB
4.4
D0
0
0
0
Quasi-differential input 1
0
0
1
Quasi-differential input 2
0
1
0
not used (mute)
0
1
1
Turner input (AM mode)
1
0
0
Turner input (FM mode)
1
0
1
not used (mute)
TDA7513T
Software specifications
Table 70.
SUBADDRESS 0: Source selector, in-gain, sSpeaker coupling
MSB
D7
LSB
D6
D5
D4
D3
Function
D2
D1
D0
1
1
0
not used (mute)
1
1
1
not used (mute)
In-Gain
0
0
0
0
0dB
0
0
0
1
1dB
-
-
-
-
-
1
1
1
0
14dB
1
1
1
1
15dB
Speaker coupling
0
AC (external)
1
DC (internal)
Table 71.
Subaddress 1,4,5,6,7: Volume Spkr atten. LF, RF, LR, RR
MSB
D7
LSB
D6
D5
D4
D3
D2
D1
Function
D0
Volume steps
Note:
1
0
0
0
1
1
1
1
15dB
-
-
-
-
-
-
-
-
-
1
0
0
0
0
0
0
1
1dB
0
0
0
0
0
0
0
0
0dB
0
0
0
0
0
0
0
1
-1dB
-
-
-
-
-
-
-
-
-
0
0
0
0
1
1
1
1
-15dB
0
0
0
1
0
0
0
0
-15dB
-
-
-
-
-
-
-
-
-
0
1
0
0
1
1
1
0
-78dB
0
1
0
0
1
1
1
1
-79dB
X
1
1
X
X
X
X
X
mute
No other combinations are allowed
71/84
Software specifications
Table 72.
TDA7513T
Subaddress 2: Treble
MSB
D7
LSB
D6
D5
D4
D3
D2
D1
Function
D0
Treble filter steps
0
0
0
0
0
-15dB
0
0
0
0
1
-14dB
-
-
-
-
-
-
0
1
1
1
0
-1dB
0
1
1
1
1
0dB
1
1
1
1
1
0dB
1
1
1
1
0
1dB
-
-
-
-
-
-
1
0
0
0
1
-14dB
1
0
0
0
0
-15dB
Treble filter center frequency
0
0
10.0kHz
0
1
12.5kHz
1
0
15kHz
1
1
17.5kHz
Table 73.
Subaddress 3: Bass
MSB
D7
LSB
D6
D5
D4
D3
D2
D1
Function
D0
Bass filter steps
0
0
0
0
0
-15dB
0
0
0
0
1
-14dB
-
-
-
-
-
-
0
1
1
1
0
-1dB
0
1
1
1
1
0dB
1
1
1
1
1
0dB
1
1
1
1
0
1dB
-
-
-
-
-
-
1
0
0
0
1
-14dB
1
0
0
0
0
-15dB
Bass filter Q-factor
0
72/84
0
1.00
TDA7513T
Software specifications
Table 73.
Subaddress 3: Bass (continued)
MSB
D7
LSB
D4
D3
D2
D1
Function
D6
D5
D0
0
1
1.25
1
0
1.50
1
1
2 (makes cent. freq. = 150Hz when
programmed to 100Hz)
Bass filter DC mode
0
off
1
on
Table 74.
Subaddress 4: Speaker attenuator left front
MSB
D7
LSB
D6
D5
D4
D3
D2
D1
Function
D0
Volume steps
Note:
1
0
0
0
1
1
1
1
15dB
-
-
-
-
-
-
-
-
-
1
0
0
0
0
0
0
1
1dB
0
0
0
0
0
0
0
0
0dB
0
0
0
0
0
0
0
1
-1dB
-
-
-
-
-
-
-
-
-
0
0
0
0
1
1
1
1
-15dB
0
0
0
1
0
0
0
0
-15dB
-
-
-
-
-
-
-
-
-
0
1
0
0
1
1
1
0
-78dB
0
1
0
0
1
1
1
1
-79dB
X
1
1
X
X
X
X
X
mute
No other combinations are allowed
Table 75.
Subaddress 8: Soft mute, bass, noise blanker time
MSB
D7
LSB
D6
D5
D4
D3
D2
D1
Function
D0
Soft mute activation control
0
I2C bus Audio Processor mute ON
(independently of pin Audio Mute)
73/84
Software specifications
Table 75.
TDA7513T
Subaddress 8: Soft mute, bass, noise blanker time
MSB
D7
LSB
D6
D5
D4
D3
D2
D1
Function
D0
I2C bus Audio Processor mute OFF (pin
Audio Mute controls muting: pin=0 ≥
mute ON, pin=1 ≥ mute OFF)
1
0
0
Soft mute transition time = 0.48ms
0
1
Soft mute transition time = 0.96ms
1
0
Soft mute transition time = 20.2ms
1
1
Soft mute transition time = 40.4ms
Base filter center frequency
0
0
60Hz
0
1
70Hz
1
0
80Hz
1
1
100Hz (if bass DC mode OFF)
1
1
150Hz (if bass DC mode ON)
Noise Blanker time
0
0
38μs
0
1
25.5μs
1
0
32μs
1
1
22μs
Table 76.
Subaddress 9: Stereo decoder mute
Stereo decoder in-gain, mono, NB PEAK disch, Curr., pilot thresh, deemph
MSB
D7
LSB
D6
D5
D4
D3
D2
D1
Function
D0
Stereo Decoder Mute
0
high-ohmic mute, pilot hold, multipath time
constant short ENABLED (mute set by pin
RDS mute LOW)
1
high-ohmic mute, pilot hold, multipath time
constant short DISABLED (regardless of pin
RDS mute)
Stereo Decoder In-gain
74/84
1
1
0dB
1
0
2.5dB
0
1
4dB
0
0
5.5dB
TDA7513T
Software specifications
Table 76.
Subaddress 9: Stereo decoder mute
Stereo decoder in-gain, mono, NB PEAK disch, Curr., pilot thresh, deemph
MSB
D7
LSB
D6
D5
D4
D3
D2
D1
Function
D0
Auto Zero Status
0
disabled
1
enabled; trans. 0 ≥ 1 performs Autozero
sequence
Force MONO
0
ON
1
OFF (automatic MONO/STEREO switch)
Noise PEAK discharge current
0
low
1
High
Pilot Threshold
0
low
1
High
Demphasis
0
50μs
1
75μs
Table 77.
Subaddress 10: Noise blanker
MSB
D7
LSB
D6
D5
D4
D3
D2
D1
Function
D0
Low threshold
0
0
0
65mV
0
0
1
60mV
-
-
-
-
1
1
1
30mV
Noise controlled threshold
0
0
320mV
0
1
260mV
1
0
200mV
1
1
140mV
Noise Blanker operation
75/84
Software specifications
Table 77.
TDA7513T
Subaddress 10: Noise blanker (continued)
MSB
D7
LSB
D6
D5
D4
D3
D2
D1
Function
D0
0
OFF
1
ON
Overdeviation adjustment
0
0
2.8V
0
1
2.0V
1
0
1.2V
1
1
OFF
Table 78.
Subaddress 11: High cut, multipath influence
MSB
D7
LSB
D6
D5
D4
D3
D2
D1
FUNCTION
D0
High cut operation
0
OFF
1
ON
Max high cut
0
0
2dB
0
1
5db
1
0
7dB
1
1
10dB
VHCH
0
0
42% REF 5V
0
1
50% REF 5V
1
0
58% REF 5V
1
1
66% REF 5V
VHCL
0
0
16.7% VHCH
0
1
22.2% VHCH
1
0
27.8% VHCH
1
1
33.3% VHCH
Strong Multipath influence on PEAK 18K
76/84
0
OFF
1
ON (18K discharge if VMPOUT <2.5V)
TDA7513T
Software specifications
Table 79.
Subaddress 12: Fieldstrength control
MSB
D7
LSB
D6
D5
D4
D3
D2
D1
Function
D0
Noise blanker fieldstrength threshold
0
0
1
0
0
1
1
1
min
max
Noise blanker fieldstrength gain
0
0
2.3V
1
0
1.8V
0
1
1.3V
1
1
OFF
Quality detector coefficient a
0
0
a = 0.7
0
1
a = 0.85
1
0
a = 1.0
1
1
a = 1.15
Multipath influence on PEAK discharge
0
OFF
1
ON
Table 80.
Subaddress 13: Noise rectifier discharge resistor
Bandpass gain, internal influence, change current, reflection gain detectors.
MSB
D7
LSB
D6
D5
D4
D3
D2
D1
Function
D0
Noise rectifier discharge resistor
0
0
R = infinite
0
1
R = 56K
1
0
R = 33K
1
1
R = 18K
Multipath detector bandpass gain
0
0
6dB
0
1
12dB
77/84
Software specifications
Table 80.
TDA7513T
Subaddress 13: Noise rectifier discharge resistor (continued)
Bandpass gain, internal influence, change current, reflection gain detectors. (continued)
MSB
D7
LSB
D6
D5
D4
D1
Function
D3
D2
D0
1
0
16dB
1
1
18dB
Multipath detector internal influence
0
ON
1
OFF
Multipath detector change current
0
0.5μA
1
1μA
Multipath detector reflection gain
0
0
Gain = 7.6dB
0
1
Gain = 4.6dB
1
0
Gain = 0dB
1
1
disabled
Table 81.
Subaddress 14: Roll-off compensation, level gain
MSB
D7
LSB
D6
D5
D4
D3
D2
D1
Function
D0
Roll-off compensation
78/84
0
0
0
0
not allowed
0
0
0
1
7.2%
0
0
1
0
9.4%
-
-
-
-
0
1
0
0
-
-
-
-
0
1
1
1
20.2%
1
0
0
0
not allowed
1
0
0
1
19.6%
1
0
1
0
21.5%
-
-
-
-
1
1
0
0
-
-
-
-
1
1
1
1
13.7%
25.3%
31.0%
TDA7513T
Software specifications
Table 81.
Subaddress 14: Roll-off compensation, level gain (continued)
MSB
D7
LSB
D6
D5
D4
D3
D2
D1
Function
D0
Level gain
0
0
0
0
0dB
0
0
0
1
0.66dB
0
0
1
0
1.33dB
-
-
-
-
-
1
1
1
1
10dB
Table 82.
Subaddress 15: Test byte
MSB
D7
LSB
D6
D5
D4
D3
D2
D1
Function
D0
Stereo decoder test signals enabling
0
test signal disabled
1
test signal enabled (if S6=1) on ACinR
Stereo decoder test signals selection
0
0
0
0
VHCCH
0
0
0
1
LEVELINTERN
0
0
1
0
PILOT
0
0
1
1
VCOCON (VCO tuning voltage)
0
1
0
0
PIL_VTH
0
1
0
1
HOLDN
0
1
1
0
NB_VTH
0
1
1
1
F228
1
0
0
0
VHCCL
1
0
0
1
VSBL
1
0
1
0
state machine enable ifc
1
0
1
1
state machine set456
1
1
0
0
PEAK
1
1
0
1
state machine check
1
1
1
0
REF 5V
1
1
1
1
SBPWM
Test SC filter
0
Fast test enabled (2-phase 200KHz
clock)
79/84
Software specifications
Table 82.
TDA7513T
Subaddress 15: Test byte (continued)
MSB
LSB
Function
1
Test disabled (4-phase 200KHz clock)
400 KHz VCO OFF
0
OFF
1
ON
Audio processor test enabling
0
Test disabled
1
Test enabled (if S6=1)
Table 83.
Subaddress 16: Multipath test, AMHCC
MSB
D7
LSB
D6
D5
D4
D3
D2
D1
Function
D0
Multipath test enable
0
Multipath Detector test input disabled
1
Multipath Detector test input enabled
Quality detector noise gain
0
0
15dB
0
1
12dB
1
0
9dB
1
1
6dB
AM High-cut control corner frequency
0
0
0
0
0
0
0
0
0
1
-
-
-
-
-
1
1
1
1
0
1
1
1
1
1
Table 84.
Subaddress 17: Mid
MSB
D7
LSB
D6
D5
D4
D3
D2
D1
Function
D0
Mid filter steps
80/84
0
0
0
0
0
-15dB
0
0
0
0
1
-14dB
-
-
-
-
-
-
0
1
1
1
0
-1db
TDA7513T
Software specifications
Table 84.
Subaddress 17: Mid (continued)
MSB
D7
LSB
D6
D5
-
Function
D4
D3
D2
D1
D0
0
1
1
1
1
0dB
1
1
1
1
1
0dB
1
1
1
1
0
1dB
-
-
-
-
-
-
1
0
0
0
1
14dB
1
0
0
0
0
15dB
Mid filter center frequency
0
0
500Hz
0
1
1.0KHz
1
0
1.5KHz
1
1
2.0KHz
Mid filter Q factor
0
1.0
1
2.0
Table 85.
Subaddress 18: Stereo blend
MSB
D7
LSB
D6
D5
D4
D3
D2
D1
Function
D0
VSBL
-
0
0
0
VSBL at 29% REF 5V
0
0
1
VSBL at 33% REF 5V
0
1
0
VSBL at 38% REF 5V
0
1
1
VSBL at 42% REF 5V
1
0
0
VSBL at 46% REF 5V
1
0
1
VSBL at 29% REF 5V
1
1
0
VSBL at 50% REF 5V
1
1
0
VSBL at 54% REF 5V
1
1
1
VSBL at 58% REF 5V
81/84
Package information
5
TDA7513T
Package information
In order to meet environmental requirements, ST offers these devices in ECOPACK®
packages. These packages have a lead-free second level interconnect. The category of
second level interconnect is marked on the package and on the inner box label, in
compliance with JEDEC standard JESD97. The maximum ratings related to soldering
conditions are also marked on the inner box label. ECOPACK is an ST trademark.
ECOPACK specifications are available at: www.st.com.
Figure 21. LQFP80 mechanical data & package dimensions
mm
inch
DIM.
MIN.
TYP.
A
MAX.
MIN.
TYP.
MAX.
1.600
0.0630
0.150 0.0020
0.0059
A1
0.050
A2
1.350
1.400
1.450 0.0531 0.0551 0.0571
b
0.220
0.320
0.380 0.0087 0.0126 0.0150
c
0.090
D
15.800 16.000 16.200 0.6220 0.6299 0.6378
D1
13.800 14.000 14.200 0.5433 0.5512 0.5591
D3
0.200 0.0035
12.350
0.0079
0.4862
E
15.800 16.000 16.200 0.6220 0.6299 0.6378
E1
13.800 14.000 14.200 0.5433 0.5512 0.5591
E3
12.350
0.4862
e
0.650
0.0256
L
L1
k
ccc
0.450
0.600
OUTLINE AND
MECHANICAL DATA
0.750 0.0177 0.0236 0.0295
1.000
0.0394
LQFP80 (14x14x1.40mm)
Low profile Quad Flat Package
0˚ (min.); 3.5˚ (typ,); 7˚ (max.)
0.100
0.0039
0062342 D
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TDA7513T
6
Revision history
Revision history
Table 86.
Document revision history
Date
Revision
Changes
01-Jun-2004
1
Initial release.
18-Apr-2007
2
Package changed, text and layour modifications.
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TDA7513T
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