3V AM/FM 1CHIP TUNER
TA8127N / F
TOSHIBA Bipolar Linear Integrated Circuit Silicon Monolithic
TA8127N,TA8127F
3V AM / FM 1chip Tuner IC
TA812...
Description
TA8127N / F
TOSHIBA Bipolar Linear Integrated Circuit Silicon Monolithic
TA8127N,TA8127F
3V AM / FM 1chip Tuner IC
TA8127N and TA8127F are the AM / FM 1chip tuner ICs, which are designed for portable radios and 3V headphone radios.
Features
· Built−in FM F / E, AM / FM IF and FM MPX
· AM detector coil and IF coupling condenser are not needed. · Compact package
TA8127N: Shrink DIP 24 pin (1.78mm pitch) TA8127F: Mini flat packge 24 pin · Operating supply voltage range VCC = 1.8~7.0V (Ta = 25°C)
Weight SDIP24−P−300−1.78: 1.2g (typ.) SSOP24−P−300−1.00: 0.31 (typ.)
1 2002-10-30
Block Diagram
TA8127N / F
2 2002-10-30
Explanation Of Terminals
Pin No.
Item
1 FM-RF IN 2 GND1 (GND for RF stage)
3 FM MIX
4 AM MIX
5 AGC (AM AGC) 6 VCC2 (VCC for IF / MPX stage) 7 AM IF IN
8 FM IF IN
Internal Circuit ―
TA8127N / F
DC Voltage (V) (at no Signal) AM FM
0 0.7
00
3.0 3.0
3.0 3.0
00 ― 3.0 3.0
3.0 3.0
3.0 3.0
3 2002-10-30
Pin No.
Item
9 GND2 (GND for IF / MPX stage)
10 TUN LED (tuning LED)
11 ST LED (stereo LED) 12 QUAD (FM QUAD. Detector) 13 R-OUT (R-ch output) 14 L-OUT (L-ch output)
15 VCO
LPF2 ・LPF terminal for synchronous detector 16 ・Bias terminal for AM / FM SW circuit
V16 = VCC → AM (VCO stop) V16 = OPEN → FM
LPF1
17
・LPF terminal for phase detector ・VCO stop terminal
V7 = VCC →VCO stop
Internal Circuit ―
TA8127N / F
DC Voltage (V) (at no Signal) AM FM 00
――
―― 3.0 3.0
1.0 1.0
2.5 2.5 (VCO stop mode)
3.0 2.2 (VCO stop mode 2.7)
2.7 2.2
4 2002-10-30
Pin No....
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