TOSHIBA TA8132AF

TA8132AN / AF , TA2012N / F
TOSHIBA Bipolar Linear Integrated Circuit Silicon Monolithic
TA8132AN,TA8132AF,TA2012N,TA2012F
3V AM / FM IF + MPX
(For Digital Tuning System)
TA8132AN, TA8132AF and TA2012N, TA2012F are the AM / FM
IF+ST DET system ICs, which are designed for DTS radios.
These are included many functions and these can be used for
digital tuning system with IF counter.
Features
·
Built−in AM / FM IF and FM stereo PLL multiplex decoder.
·
Suitable for combination with digital tuning system which is
included IF counter.
○ One terminal type AM / FM IF count output (auto stop
signal) for IF counter of digital tuning system.
FM: 10.7MHz or 1.3375MHz (1 / 8 dividing)
changeable by external switch
AM: 450kHz
○ Built−in mute circuit for IF count output.
It is controlled by the IF request signal from digital
tuning system,
Pin(8) level: High → come out
Low → non output
○ Adjustable for IF count output sensitivity by external
resistance of pin(2).
Weight
SDIP24−P−300−1.78: 1.2g (typ.)
SSOP24−P−300−1.00 : 0.31g (typ.)
·
For adopting ceramic discriminator and ceramic resonator, it
is not necessary to adjust the FM quad detector circuit and
FM ST DET VCO circuit.
·
S curve characteristics of FM detection output in TA8132AN, TA8132AF and TA2012N, TA2012F are reverse to
each other.
TA8132AN, TA8132AF: Reverse characteristic.
TA2012N, TA2012F: Normal characteristic.
·
Built−in one terminal type AM low cut circuit.
·
TA2053F is reverse pin type of TA2012F.
·
Operating supply voltage range (Ta = 25°C)
VCC (opr.) = 1.8~8.0V
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TA8132AN / AF , TA2012N / F
Block Diagram
(Note)
We recommend
Ceramic resonator: CSB456F18
Ceramic discriminator: CDA10.7MG18 (MURATA MFG CO., LTD)
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Explanation Of Terminals
Pin
No.
Item
Internal Circuit
DC Voltage (V)
(at no Signal)
AM
FM
1
AM RF IN
3.0
3.0
2
・IF count output sensitivity adjust
terminal
―
―
・FM IF divider control terminal
3
AM OSC
3.0
3.0
4
AM OSC OUT
2.7
3.0
5
VCC
3.0
3.0
6
AM LOW CUT
2.3
2.3
―
3
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Pin
No.
Item
7
AGC
8
Internal Circuit
DC Voltage (V)
(at no Signal)
AM
FM
0.25
0.35
IF OUT SW
―
―
9
IF OUT
3.0
3.0
10
TUN LED (tuning LED)
―
―
11
ST LED (stereo LED)
―
―
12
GND
0
0
13
14
R-OUT
L-OUT
1.0
1.0
―
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Pin
No.
Item
DC Voltage (V)
(at no Signal)
Internal Circuit
AM
FM
15
VCO
2.5
2.5
(VCO
stop
mode)
16
LPF2
・LPF terminal for synchronous
detector
・Bias terminal for AM / FM switch
circuit
V16 = VCC→AM
V16 = open→FM
3.0
2.2
17
LPF1
・LPF Terminal for phase detector
・VCO stop terminal
V17 = VCC→VCO stop
2.7
2.2
18
FM ST DET IN
0.7
0.7
19
DET OUT
1.1
1.1
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Pin
No.
Item
Internal Circuit
DC Voltage (V)
(at no Signal)
AM
FM
20
QUAD (FM QUAD. Detector)
2.4
2.1
21
AM IF IN
3.0
3.0
22
BY-PASS
By-pass for AM/FM IF AMP
2.3
2.8
23
AM MIX OUT
3.0
3.0
24
FM IF IN
3.0
3.0
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Application Note
1. How to control the IF count output signal (pin(9) output)
TUN LED
V8
ON
OFF
H
Come out
Non output
L
Non output
Non output
· Whether or not there is the IF count output signal (pin(9) output) is determined by the and of the pin(8)
control voltage: V8 and tuning LED on / off switching.
In the condition of
V8: High (active high, VTH = 0.8V (typ.))
TUN LED: ON (Vin ≥ VL+2dBµV EMF (typ.))
the IF count output signal comes out from the pin(9).
In the case of the tuning LED function is not needed, it doesn't matter the pin(10) is opened.
· The output impedance of pin(9) is 1.5kΩ (typ.) (cf.P.4)
It is possible to reduce the IF count output signal level to add the resistance between the pin(9) and the VCC
line.
· The signal waveform is the rectangular wave, and the level is 500mVp-p (typ.)
2. How to control the divider of FM IF
Switch
VCC: 10.7MHz output
GND or OPEN: 1.3375MHz output (1 / 8 dividing)
3. How to adjust the IF count output sensitivity
· The IF count output sensitivity (search sensitivity)
Can be adjusted by varying the IF AMP gain for FM and varying the MIXER gain for AM.
This setting is made by changing the value of external resistance R2 which is connected to
pin(2).
· However, this is only possible at the auto-tuning mode. (external voltage supplied to pin(8) is at high level.)
The original again returns while receiving a broadcast station (supplied voltage to pin(8) is at low level.)
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· The gain loss of FM IF AMP
R2
Mode
0Ω
10KΩ (Note)
IF
(10.7MHz)
-20dB
-1dB
1 / 8 IF
(1.3375MHz)
-20dB
-1dB
(Note)
・In the condition of the 1 / 8 IF mode, it is
possible to set up R2 = ∞ (OPEN).
・In the condition of IF mode, it is necessary to set up the value of R2 under 10kΩ. When the R2 is over
10kΩ it is feared that the mode is change to the 1 / 8 IF mode.
· The gain loss of AM MIXER
R2
0Ω
10KΩ
-16dB
-1dB
4. AM low-cut circuit
· The AM low-cut action is carried out by the bypass of the high frequency component of
the positive-feedback signal at the AF AMP stage. The external capacitor: C6
by-passes this component.
· The cut-off frequency fL is determine by the internal resistance 22kΩ (typ.) and the
external capacitor C6 as following;
fL =
1
2 ´ p ´ 22 ´ 103 ´ C6
(Hz)
· In the case of the AM low-cut function is not needed, set up the value of C6 over 0.47µF.
In the condition of C6 ≥ 0.47µF, the frequency characteristic has flat response at the low frequency.
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5. AM local oscillator buffer output
· The output impedance of AM local oscillator buffer output pin (pin(4)) is 750Ω (typ.) (cf.P.3)
· It is possible to reduce the output level to add the resistance between the pin(4) and VCC line. The signal
waveform is the rectangular wave, and the level is 500mVp-p (fOSC = 1.45MHz, typ.)
· The higher local oscillation frequency (fOSC) to be, the lower buff output level to be owing to the load capacity.
So, in the case that it is connected to other circuits, take care of the input capacity of these circuits and stray
capacity of wire.
6. Tuning LED driver and stereo LED driver
· The tuning LED driver and stereo LED driver don't have current limit resistance
shown in the right figure. So, it is necessary to add the current limit resistance:
R10, R11.
· Set up the values of R10, R11 to keep the drive currents ID10, ID11 under 10mA.
7.FM detection circuit
For the FM detection circuit,detection coil is able to use instead of ceramic discriminator.
Recommended circuit and recommended coil are as follows.
In this case, please take care that Vin (lim.) falls a little.
Test
Frequency
Co
(pF)
Qo
10.7MHz
100
100
1-2
2-3
1-3
4-6
Wire
(mmf)
―
―
12
―
0.12 UEW
Turns
9
REF
SUMIDA ELECTRIC CO., LTD
2153-4095-189 or equivalent
2002-10-30
TA8132AN / AF , TA2012N / F
8. FM / AM switch and forced monaural switch
FM / AM switch over and stere / forced monaural switch over are done by
internal PNP transistors ON / OFF which are connected to pin(16) and pin
(17) respectively.
The threshold voltages of these PNP transistors are Vth = VCC, and for
switching, we recommend to use mechanical switch.
(Direct short to VCC line.)
In the case of the electrical switch over by transistor, set up VCE
(saturation voltage between collector and emitter) 50mV or less, otherwise
there are some cases that it does not become the AM mode and force
monaural mode.
When these external switches are ON, the currents which flow into pin(16)
and pin(17) are 100µA and 20µA respectively. (Typical value at VCC = 3V)
Maximum Ratings (Ta = 25°C)
Characteristic
Symbol
Rating
Unit
Supply voltage
VCC
8
V
LED current
ILED
10
mA
LED voltage
VLED
8
V
Power dissipation
TA8132AN
TA8132AF
PD (Note)
1200
400
mW
Operating Temperature
Topr
-25~75
°C
Storage temperature
Tstg
-55~150
°C
(Note): Derated above 25°C in the proportion of 9.6mW / °C for TA8132AN, TA2012N and
of 3.2mW / °C for TA8132AF, TA2012F.
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Electrical characteristics
Unless Otherwise Specified, Ta = 25°C, VCC1 = 3V, SW 1→10kΩ, SW3→OFF
FM IF: f = 10.7MHz, ∆f = ±22.5kHz, fm = 1kHz
AM: f = 1MHz, MOD = 30%, fm = 1kHz
MPX: fm = 1kHz
Characteristic
Test
Circuit
ICC (FM)
1
ICC (AM)
Min.
Typ.
Max.
FM mode, Vin = 0
―
11.0
14.0
1
AM mode, Vin = 0
―
10.5
13.5
Vin (lim.)
1
-3dB limiting point
41
46
51
dBµV
EMF
Recovered output
voltage
VOD
1
Vin = 80dBµV EMF
50
75
100
mVrms
Signal to noise
ratio
S/N
1
Vin = 80dBµV EMF
―
65
―
dB
Total harmonic
distortion
THD
1
Vin = 80dBµV EMF
―
0.2
―
%
AM rejection ratio
AMR
1
Vin = 80dBµV EMF
―
38
―
dB
LED on sensitivity
VL
1
IL = 1mA
48
53
58
dBµV
EMF
fIF (FM)
1
Vin = 80dBµV EMF,
SW 2→VCC, SW3→ON
―
10.7
―
f1 / 8 IF (FM)
1
Vin = 80dBµV EMF,
SW 2→GND, SW 3→ON
VIF (FM)
1
Vin = 61dBµV EMF,
SW 2→VCC, SW3→ON
350
500
―
V1 / 8 IF (FM)
1
Vin = 61dBµV EMF,
SW 2→GND, SW 3→ON
350
500
―
SW 1→0, SW 2→GND,
SW 3→ON
―
76
―
SW 1→510Ω, SW2→GND,
SW 3→ON
―
68
―
SW 1→0, SW 2→,VCC,
SW 3→ON
―
77
―
SW 1→510Ω, SW 2→,VCC,
SW 3→ON
―
69
―
Supply current
Input limiting
voltage
FM
IF
Symbol
IF count
output
frequency
IF
IF count
output
voltage
IF
1 / 8 IF
1 / 8 IF
IF count output
sensitivity
IFsens. (FM)
1
Test Condition
11
Unit
mA
MHz
1.3374 1.3375 1.3376
mVp-p
dBµV
EMF
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TA8132AN / AF , TA2012N / F
Symbol
Test
Circuit
Gain
ＧV
1
Recovered output
voltage
VOD
Signal to noise
ratio
Total harmonic
distortion
Characteristic
LED on sensitivity
AM
Min.
Typ.
Max.
Vin = 26dBµV EMF
28
57
85
1
Vin = 60dBµV EMF
50
75
100
S/N
1
Vin = 60dBµV EMF
―
41
―
dB
THD
1
Vin = 60dBµV EMF
―
1.0
―
%
VL
1
IL = 1mA
21
26
31
dBµV
EMF
1
fOSC = 1.45MHz
350
500
―
2
fOSC = 27MHz
―
500
―
1
Vin = 39dBµV EMF, SW 3→ON
350
500
―
SW 1→0, SW 2→GND,
SW 3→ON
―
49
―
SW 1→510Ω, SW2→GND,
SW 3→ON
―
42
―
SW 1→0, SW 2→,VCC,
SW 3→on
―
49
―
SW 1→510Ω, SW 2→,VCC,
SW 3→ON
―
42
―
FM mode
―
0.6
―
AM mode
―
12
―
Local OSC buff.
output voltage
VOSC (AM)
IF count output
voltage
VIF (AM)
IF count output
sensitivity
Pin(19) output resistance
IFsens. (AM)
R19
1
1
Test Condition
12
Unit
mVrms
mVp-p
mVp-p
dBµV
EMF
kΩ
2002-10-30
TA8132AN / AF , TA2012N / F
Characteristic
Symbol
Test
Circuit
Test Condition
Min.
Typ.
Max.
Input resistance
RIN
1
―
―
25
―
ROUT
1
―
―
5
―
Vin MAX
(stereo)
1
L + R = 90%, P = 10%
THD = 3%, SW9→LPF: ON
―
350
―
―
42
―
―
L + R = 135mVrms
P = 15mVrms,
SW 9→LPF: ON
fm = 100kHz
Sep
fm = 1kHz
35
42
―
fm = 10kHz
―
42
―
Vin = 150 mVrms (mono)
―
0.2
―
L + R = 135mVrms,
P = 15mVrms
SW 9→LPF: ON
―
0.2
―
Output resistance
Max. composite
signal input voltage
Separation
Total
harmonic
MP X distortion
Monaural
Stereo
THD
(monaural)
THD
(stereo)
1
Unit
kΩ
mVrms
dB
%
GV (MPX)
1
Vin = 150mVrms (mono)
-5
-3
-1
dB
C.B.
1
Vin = 150mVrms (mono)
-2
0
2
dB
1
Pilot input
―
8
15
2
6
―
VH
1
To LED turn off from
LED turn on
―
2
―
mVrms
Capture range
C.R.
1
P = 15mVrms
―
±1.3
―
%
Signal to noise ratio
S/N
1
Vin = 150mVrms (mono)
―
78
―
dB
Voltage gain
Channel balance
Stereo LED
sensitivity
ON
VL (ON)
OFF
VL (OFF)
Stereo LED hysteresis
13
mVrms
2002-10-30
TA8132AN / AF , TA2012N / F
Test Circuit 1
Coil Data (test circuit 1)
f
L
(µH)
T1 AM OSC
796kHz
288
―
T2 AM IFT
455KHz
―
180
Coil No.
Co
(pF)
Qo
Turn
1-3
4-6
Wire
(mm)
RED. (Coil No.)
1-2
2-3
115
13
73
―
―
0.08 UEW
4147-1356-038 (S)
120
―
―
180
15
0.06 UEW
2150-2162-165 (S)
(S): SUMIDA ELECTRIC Co., Ltd.
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TA8132AN / AF , TA2012N / F
Test Circuit 2
Coil Data (test circuit 2)
Coil No.
f
L
(µH)
Co
(pF)
Qo
T AM OSC
7.96MHz
1.4
―
84
1-2
1
Turn
2-3
1-3
6
7
4-6
Wire
(mm)
―
0.08 UEW
REF. (Coil No.)
(T) 7PL-1344Y
(T): TOKO Co., Ltd.
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Package Dimensions
Weight: 1.2g (typ.)
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TA8132AN / AF , TA2012N / F
Package Dimensions
Weight: 0.31g (typ.)
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TA8132AN / AF , TA2012N / F
RESTRICTIONS ON PRODUCT USE
000707EBA
· TOSHIBA is continually working to improve the quality and reliability of its products. Nevertheless, semiconductor
devices in general can malfunction or fail due to their inherent electrical sensitivity and vulnerability to physical
stress. It is the responsibility of the buyer, when utilizing TOSHIBA products, to comply with the standards of
safety in making a safe design for the entire system, and to avoid situations in which a malfunction or failure of
such TOSHIBA products could cause loss of human life, bodily injury or damage to property.
In developing your designs, please ensure that TOSHIBA products are used within specified operating ranges as
set forth in the most recent TOSHIBA products specifications. Also, please keep in mind the precautions and
conditions set forth in the “Handling Guide for Semiconductor Devices,” or “TOSHIBA Semiconductor Reliability
Handbook” etc..
· The TOSHIBA products listed in this document are intended for usage in general electronics applications
(computer, personal equipment, office equipment, measuring equipment, industrial robotics, domestic appliances,
etc.). These TOSHIBA products are neither intended nor warranted for usage in equipment that requires
extraordinarily high quality and/or reliability or a malfunction or failure of which may cause loss of human life or
bodily injury (“Unintended Usage”). Unintended Usage include atomic energy control instruments, airplane or
spaceship instruments, transportation instruments, traffic signal instruments, combustion control instruments,
medical instruments, all types of safety devices, etc.. Unintended Usage of TOSHIBA products listed in this
document shall be made at the customer’s own risk.
· The products described in this document are subject to the foreign exchange and foreign trade laws.
· The information contained herein is presented only as a guide for the applications of our products. No
responsibility is assumed by TOSHIBA CORPORATION for any infringements of intellectual property or other
rights of the third parties which may result from its use. No license is granted by implication or otherwise under
any intellectual property or other rights of TOSHIBA CORPORATION or others.
· The information contained herein is subject to change without notice.
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