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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). * For adopting ceramic discriminator and ceramic resonator, it is not necessary to adjust the FM quad detector circuit and FM ST DET VCO circuit. Weight SDIP24-P-300-1.78: 1.2g (typ.) SSOP24-P-300-1.00 : 0.31g (typ.)
*
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 = 25C) VCC (opr.) = 1.8~8.0V
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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
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Pin No.
Item
Internal Circuit
DC Voltage (V) (at no Signal) AM FM
7
AGC
0.25
0.35
8
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
Internal Circuit
DC Voltage (V) (at no Signal) 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 = VCCAM V16 = openFM
3.0
2.2
17
LPF1 LPF Terminal for phase detector VCO stop terminal V17 = VCCVCO 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 ON V8 H L Come out Non output OFF 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+2dBV 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 1.5k (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 0 Mode IF (10.7MHz) 1 / 8 IF (1.3375MHz) -20dB -20dB 10K (Note) -1dB -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 10k. When the R2 is over 10k it is feared that the mode is change to the 1 / 8 IF mode.
* The gain loss of AM MIXER
R2 0 -16dB 10K -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 22k (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 0.47F. In the condition of C6 0.47F, 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 750 (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 10.7MHz
Co (pF) 100
Qo 100
Turns 1-2 2-3 1-3 12 4-6
Wire (mmf) 0.12 UEW
REF SUMIDA ELECTRIC CO., LTD 2153-4095-189 or equivalent
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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 100A and 20A respectively. (Typical value at VCC = 3V)
Maximum Ratings (Ta = 25C)
Characteristic Supply voltage LED current LED voltage Power dissipation TA8132AN TA8132AF Symbol VCC ILED VLED PD (Note) Topr Tstg Rating 8 10 8 1200 400 -25~75 -55~150 Unit V mA V mW C C
Operating Temperature Storage temperature
(Note): Derated above 25C 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 = 25C, VCC1 = 3V, SW 110k, SW3OFF FM IF: f = 10.7MHz, f = 22.5kHz, fm = 1kHz AM: f = 1MHz, MOD = 30%, fm = 1kHz MPX: fm = 1kHz
Characteristic Symbol ICC (FM) ICC (AM) Vin (lim.) VOD S/N THD AMR VL fIF (FM) f1 / 8 IF (FM) VIF (FM) V1 / 8 IF (FM) Test Circuit 1 1 1 1 1 1 1 1 1 1 1 1 Test Condition FM mode, Vin = 0 AM mode, Vin = 0 -3dB limiting point Vin = 80dBV EMF Vin = 80dBV EMF Vin = 80dBV EMF Vin = 80dBV EMF IL = 1mA Vin = 80dBV EMF, SW 2VCC, SW3ON Vin = 80dBV EMF, SW 2GND, SW 3ON Vin = 61dBV EMF, SW 2VCC, SW3ON Vin = 61dBV EMF, SW 2GND, SW 3ON SW 10, SW 2GND, SW 3ON IF count output sensitivity SW 1510, SW2GND, SW 3ON SW 10, SW 2,VCC, SW 3ON SW 1510, SW 2,VCC, SW 3ON Min. 41 50 48 Typ. 11.0 10.5 46 75 65 0.2 38 53 10.7 Max. 14.0 13.5 51 100 58 MHz 1.3374 1.3375 1.3376 350 350 500 500 76 68 77 69 mVp-p Unit
Supply current Input limiting voltage Recovered output voltage Signal to noise ratio Total harmonic distortion AM rejection ratio LED on sensitivity IF count output frequency IF 1 / 8 IF IF 1 / 8 IF
mA dBV EMF mVrms dB % dB dBV EMF
FM IF
IF count output voltage
IFsens. (FM)
1
dBV EMF
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Characteristic Gain Recovered output voltage Signal to noise ratio Total harmonic distortion LED on sensitivity Local OSC buff. output voltage IF count output voltage Symbol V VOD S/N THD VL VOSC (AM) VIF (AM) Test Circuit 1 1 1 1 1 1 2 1 Test Condition Vin = 26dBV EMF Vin = 60dBV EMF Vin = 60dBV EMF Vin = 60dBV EMF IL = 1mA fOSC = 1.45MHz fOSC = 27MHz Vin = 39dBV EMF, SW 3ON SW 10, SW 2GND, SW 3ON IF count output sensitivity SW 1510, SW2GND, SW 3ON SW 10, SW 2,VCC, SW 3on SW 1510, SW 2,VCC, SW 3ON Pin(19) output resistance R19 1 FM mode AM mode Min. 28 50 21 350 350 Typ. 57 75 41 1.0 26 500 500 500 49 42 49 42 0.6 12 Max. 85 100 31 k mVrms Unit
dB % dBV EMF mVp-p mVp-p
AM
IFsens. (AM)
1
dBV EMF
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Characteristic Input resistance Output resistance Max. composite signal input voltage
Symbol RIN ROUT Vin MAX (stereo)
Test Circuit 1 1 1
Test Condition L + R = 90%, P = 10% THD = 3%, SW9LPF: ON L + R = 135mVrms P = 15mVrms, SW 9LPF: ON fm = 100kHz fm = 1kHz fm = 10kHz
Min. 35
Typ. 25 5 350 42 42 42 0.2
Max.
Unit
k mVrms
Separation
Sep
dB
Total harmonic MP X distortion
Monaural
THD (monaural) THD (stereo) GV (MPX) C.B. VL (ON) VL (OFF) VH C.R. S/N 1
Vin = 150 mVrms (mono) L + R = 135mVrms, P = 15mVrms SW 9LPF: ON Vin = 150mVrms (mono) Vin = 150mVrms (mono) Pilot input To LED turn off from LED turn on P = 15mVrms Vin = 150mVrms (mono)
% -5 -2 2 0.2 -3 0 8 6 2 1.3 78 -1 2 15 dB dB mVrms
Stereo
Voltage gain Channel balance Stereo LED sensitivity ON OFF
1 1 1
Stereo LED hysteresis Capture range Signal to noise ratio
1 1 1
mVrms % dB
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Test Circuit 1
Coil Data (test circuit 1)
Coil No. T1 AM OSC T2 AM IFT f 796kHz 455KHz L (H) 288 Co (pF) 180 Qo 115 120 Turn 1-2 13 2-3 73 1-3 180 4-6 15 Wire (mm) 0.08 UEW 0.06 UEW RED. (Coil No.) 4147-1356-038 (S) 2150-2162-165 (S)
(S): SUMIDA ELECTRIC Co., Ltd.
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Test Circuit 2
Coil Data (test circuit 2)
Coil No. T AM OSC f 7.96MHz L (H) 1.4 Co (pF) Qo 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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Package Dimensions
Weight: 0.31g (typ.)
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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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