PHILIPS TDA1574

INTEGRATED CIRCUITS
DATA SHEET
TDA1574
Integrated FM tuner for radio
receivers
Product specification
File under Integrated Circuits, IC01
February 1985
Philips Semiconductors
Product specification
Integrated FM tuner for radio receivers
TDA1574
GENERAL DESCRIPTION
The TDA1574 is a monolithic integrated FM tuner circuit designed for use in the r.f./i.f. section of car radios and
home-receivers. The circuit comprises a mixer, oscillator and a linear i.f. amplifier for signal processing, plus the following
additional features.
Features
• Keyed automatic gain control (a.g.c.)
• Regulated reference voltage
• Buffered oscillator output
• Electronic standby switch
• Internal buffered mixer driving.
QUICK REFERENCE DATA
7 to 16 V
Supply voltage range (pin 15)
VP
Mixer input bias voltage (pins 1 and 2)
V1, 2-4
typ.
1V
NF
typ.
9 dB
V6-4
typ.
2V
Y22
typ.
V9-4
typ.
6V
noise figure
Oscillator output voltage (pin 6)
output admittance at pin 6 for f = 108,7 MHz
1,5 + j2 mS
Oscillator output buffer
D.C. output voltage (pin 9)
Total harmonic distortion
THD
typ.
−15 dBC
Linear i.f. amplifier output voltage (pin 10)
V10-4
typ.
4,5 V
NF
typ.
6,5 dB
noise figure at RS = 300 Ω
Keyed a.g.c. output voltage range (pin 18)
V18-4
PACKAGE OUTLINE
18-lead DIL; plastic (SOT102); SOT102-1; 1996 August 08.
February 1985
2
+ 0,5 to VP − 0,3 V
Coil data
L1: TOKO MC-108, 514HNE-150014S14; L = 0,078 µH
L2: TOKO MC-111, E516HNS-200057; L = 0,08 µH
L3: TOKO coil set 7P, N1 = 5,5 + 5,5 turns, N2 = 4 turns
Fig.1 Block diagram and test circuit.
Philips Semiconductors
February 1985
Product specification
Integrated FM tuner for radio receivers
3
TDA1574
Philips Semiconductors
Product specification
Integrated FM tuner for radio receivers
TDA1574
FUNCTIONAL DESCRIPTION
Mixer
The mixer circuit is a double balanced multiplier with a preamplifier (common base input) to obtain a large signal handling
range and a low oscillator radiation.
Oscillator
The oscillator circuit is an amplifier with a differential input. Voltage regulation is achieved by utilizing the symmetrical
tanh-transfer-function to obtain low order 2nd harmonics.
Linear IF amplifier
The IF amplifier is a one stage, differential input, wideband amplifier with an output buffer.
Keyed AGC
The AGC processor combines narrow- and wideband information via an RF level detector, a comparator and an ANDing
stage. The level dependent, current sinking output has an active load, which sets the AGC threshold.
The AGC function can either be controlled by a combination of wideband and narrowband information (keyed AGC), or
by a wideband information only, or by narrowband information only. If only narrow-band AGC is wanted pin 3 should be
connected to pin 5. If only wideband AGC is wanted pin 12 should be connected to pin 13.
RATINGS
Limiting values in accordance with the Absolute Maximum System (IEC 134)
Supply voltage (pin 15)
VP = V15-4
max.
18 V
Mixer output voltage (pins 16 and 17)
V16, 17-4
max.
35 V
Standby switch input voltage (pin 11)
V11-4
max.
23 V
Reference voltage (pin 5)
V5-4
max.
7V
Field strength input voltage (pin 12)
V12-4
max.
7V
Total power dissipation
Ptot
max.
800 mW
Storage temperature range
Tstg
−55 to + 150 °C
Operating ambient temperature range
Tamb
−40 to + 85 °C
THERMAL RESISTANCE
From junction to ambient (in free air)
Rth j-amb
Note
All pins are short-circuit protected to ground.
February 1985
4
=
80 K/W
Philips Semiconductors
Product specification
Integrated FM tuner for radio receivers
TDA1574
CHARACTERISTICS
VP = V15-4 = 8,5 V; Tamb = 25 °C; measured in test circuit Fig.1; unless otherwise specified
PARAMETER
SYMBOL
MIN.
TYP.
MAX.
UNIT
Supply (pin 15)
Supply voltage
VP = V15-4
7
−
16
V
Supply current (except mixer)
IP = I15
16
23
30
mA
Reference voltage (pin 5)
V5-4
3,9
4,1
4,4
V
Input bias voltage (pins 1 and 2)
V1,2-4
−
1
−
V
Output voltage (pins 16 and 17)
V16,17-4
4
−
35
V
Output current (pin 16 + pin 17)
I16 + I17
−
4,0
−
mA
Noise figure
NF
−
9
−
dB
Noise figure including transforming network
NF
−
11
−
dB
3rd order intercept point
EMF1IP3
−
115
−
dBµV
4 ( V M ( out ) 10 ,7 MHz ) 2 R S1
10 log --------------------------------------------------------- × ----------2
R ML
( EMF1 98 MHz )
GP
−
14
−
dB
Input resistance (pins 1 and 2)
R1,2-4
−
14
−
Ω
Output capacitance (pins 16 and 17)
C16,17
−
13
−
pF
Input voltage (pins 7 and 8)
V7,8-4
−
1,3
−
V
Output voltage (pin 6)
V6-4
−
2
−
V
∆f
−
2,2
−
Hz
Mixer
D.C. characteristics
A.C. characteristics (fi = 98 MHz)
Conversion power gain
Oscillator
D.C. characteristics
A.C. characteristics (fosc = 108,7 MHz)
Residual FM (Bandwidth 300 Hz to 15 kHz);
de-emphasis = 50 µs
February 1985
5
Philips Semiconductors
Product specification
Integrated FM tuner for radio receivers
PARAMETER
TDA1574
SYMBOL
MIN.
TYP.
MAX.
UNIT
Linear i.f. amplifier
D.C. characteristics
Input bias voltage (pin 13)
V13-4
−
1,2
−
V
Output voltage (pin 10)
V10-4
−
4,5
−
V
R14-13
240
300
360
Ω
C14-13
−
13
−
pF
R10-4
240
300
360
Ω
C10-4
−
3
−
pF
GVIF
27
30
−
dB
∆GVIF
−
0
−
dB
at VP = 8,5 V
V10-4rms
−
750
−
mV
at VP = 7,5 V
V10-4rms
−
550
−
mV
NF
−
6,5
−
dB
V18-4
0,5
−
VP-0,3
V
−I18
25
50
100
µA
I18
2
−
5
mA
A.C. characteristics (fi = 10,7 MHz)
Input impedance
Output impedance
Voltage gain
V 10 – 4
20 log -----------------V 14 – 13
Tamb = −40 to + 85 °C
1 dB compression point (r.m.s. value)
Noise figure
at RS = 300 Ω
Keyed a.g.c.
D.C. characteristics
Output voltage range (pin 18)
A.G.C. output current
at I3 = φ or
V12-4 = 450 mV; V18-4 = VP/2
at V3-4 = 2 V and
V12-4 = 1 V; V18-4 = V15-4
February 1985
6
Philips Semiconductors
Product specification
Integrated FM tuner for radio receivers
PARAMETER
TDA1574
SYMBOL
MIN.
TYP.
MAX.
UNIT
Narrowband threshold
at V3-4 = 2 V; V12-4 = 550 mV
V18-4
−
−
1
V
at V3-4 = 2 V; V12-4 = 450 mV
V18-4
VP-0,3
−
−
V
R3-4
−
4
−
kΩ
C3-4
−
3
−
pF
EMF2rms
−
17
−
mV
V9-4
−
6,0
−
V
at RL = ∞; CL = 2 pF
V9-4(rms)
−
110
−
mV
at RL = 75 Ω
V9-4(rms)
30
50
−
mV
R9-15
−
2,5
−
kΩ
THD
−
−15
−
dBC
fS
−
−35
−
dBC
for threshold ON; V18-4 = ≥ VP−3 V
V11-4
0
−
2,3
V
for threshold OFF; V18-4 = ≤ 0,5 V
V11-4
3,3
−
23
V
at ON condition; V11-4 = 0 V
−I11
−
−
150
µA
at OFF condition; V11-4 = 23 V
I11
−
−
10
µA
V11-4
−
−
4,4
V
A.C. characteristics (fi = 98 MHz)
Input impedance
Wideband threshold (r.m.s. value)
(see figures 2, 3, 4 and 5)
at V12-4 = 0,7 V; V18-4 = VP/2; I18 = 0
Oscillator output buffer (pin 9)
D.C. output voltage
Oscillator output voltage (r.m.s. value)
D.C. output impedance
Signal purity
Total harmonic distortion
Spurious frequencies
at EMF1 = 0,2 V; RS1 = 50 Ω
Electronic standby switch (pin 11 )
Oscillator; linear i.f. amplifier; a.g.c.
at Tamb = −40 to + 85 °C
Input switching voltage
Input current
Input voltage
at I11 = φ
February 1985
7
Philips Semiconductors
Product specification
Integrated FM tuner for radio receivers
Fig.2
TDA1574
Keyed a.g.c. output voltage V18-4 as a
function of r.m.s. input voltage V3-4.
Measured in test circuit Fig.1 at
V12-4 = 0,7 V; I18 = φ.
Fig.3
Keyed a.g.c. output voltage V18-4
as a function of input voltage V12-4.
Measured in test circuit Fig.1 at
V3-4 = 2 V; I18 = φ.
Keyed a.g.c. output current I18 as a
function of r.m.s. input voltage V3-4.
Measured in test circuit Fig.1 at
V12-4 = 0,7 V; V18-4 = 8,5 V.
Fig.5
Keyed a.g.c. output current I18 as a
function of input voltage V12-4.
Measured in test circuit Fig.1 at
V3-4 = 2 V; V18-4 = 8,5 V.
Fig.4
February 1985
8
February 1985
9
see Fig.1
TOKO MC-108,
514HNE-15023S15,
N1 = 5,5 turns, N2 = 1
turn
Fig.6 TDA1574 application diagram.
Integrated FM tuner for radio receivers
(1) Field strength indication
of main i.f. amplifier.
L3:
L2:
L1 :
Coil data
APPLICATION INFORMATION
Philips Semiconductors
Product specification
TDA1574
Philips Semiconductors
Product specification
Integrated FM tuner for radio receivers
TDA1574
PACKAGE OUTLINE
DIP18: plastic dual in-line package; 18 leads (300 mil)
SOT102-1
ME
seating plane
D
A2
A
A1
L
c
e
Z
w M
b1
(e 1)
b
b2
MH
10
18
pin 1 index
E
1
9
0
5
10 mm
scale
DIMENSIONS (inch dimensions are derived from the original mm dimensions)
UNIT
A
max.
A1
min.
A2
max.
b
b1
b2
c
D (1)
E (1)
e
e1
L
ME
MH
w
Z (1)
max.
mm
4.7
0.51
3.7
1.40
1.14
0.53
0.38
1.40
1.14
0.32
0.23
21.8
21.4
6.48
6.20
2.54
7.62
3.9
3.4
8.25
7.80
9.5
8.3
0.254
0.85
inches
0.19
0.020
0.15
0.055
0.044
0.021
0.015
0.055
0.044
0.013
0.009
0.86
0.84
0.26
0.24
0.10
0.30
0.15
0.13
0.32
0.31
0.37
0.33
0.01
0.033
Note
1. Plastic or metal protrusions of 0.25 mm maximum per side are not included.
OUTLINE
VERSION
REFERENCES
IEC
JEDEC
EIAJ
ISSUE DATE
93-10-14
95-01-23
SOT102-1
February 1985
EUROPEAN
PROJECTION
10
Philips Semiconductors
Product specification
Integrated FM tuner for radio receivers
TDA1574
The device may be mounted up to the seating plane, but
the temperature of the plastic body must not exceed the
specified maximum storage temperature (Tstg max). If the
printed-circuit board has been pre-heated, forced cooling
may be necessary immediately after soldering to keep the
temperature within the permissible limit.
SOLDERING
Introduction
There is no soldering method that is ideal for all IC
packages. Wave soldering is often preferred when
through-hole and surface mounted components are mixed
on one printed-circuit board. However, wave soldering is
not always suitable for surface mounted ICs, or for
printed-circuits with high population densities. In these
situations reflow soldering is often used.
Repairing soldered joints
Apply a low voltage soldering iron (less than 24 V) to the
lead(s) of the package, below the seating plane or not
more than 2 mm above it. If the temperature of the
soldering iron bit is less than 300 °C it may remain in
contact for up to 10 seconds. If the bit temperature is
between 300 and 400 °C, contact may be up to 5 seconds.
This text gives a very brief insight to a complex technology.
A more in-depth account of soldering ICs can be found in
our “IC Package Databook” (order code 9398 652 90011).
Soldering by dipping or by wave
The maximum permissible temperature of the solder is
260 °C; solder at this temperature must not be in contact
with the joint for more than 5 seconds. The total contact
time of successive solder waves must not exceed
5 seconds.
DEFINITIONS
Data sheet status
Objective specification
This data sheet contains target or goal specifications for product development.
Preliminary specification
This data sheet contains preliminary data; supplementary data may be published later.
Product specification
This data sheet contains final product specifications.
Limiting values
Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 134). Stress above one or
more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation
of the device at these or at any other conditions above those given in the Characteristics sections of the specification
is not implied. Exposure to limiting values for extended periods may affect device reliability.
Application information
Where application information is given, it is advisory and does not form part of the specification.
LIFE SUPPORT APPLICATIONS
These products are not designed for use in life support appliances, devices, or systems where malfunction of these
products can reasonably be expected to result in personal injury. Philips customers using or selling these products for
use in such applications do so at their own risk and agree to fully indemnify Philips for any damages resulting from such
improper use or sale.
February 1985
11