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PDF TA8122AN Data sheet ( Hoja de datos )
| Número de pieza | TA8122AN | |
| Descripción | 3V AV/FM 1CHIP TUNER IC | |
| Fabricantes | Toshiba Semiconductor | |
| Logotipo |  |
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TA8122, 23AN / AF
TOSHIBA Bipolar Linear Integrated Circuit Silicon Monolithic
TA8122AN, TA8122AF, TA8123AN, TA8123AF
3V AV / FM 1Chip Tuner IC
TA8122AN / AF and TA8123AN / AF 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 ST DET
· AM detector coil, FM IFT and IF coupling condenser are not
needed.
· 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 TA8122AN /
AF and TA8123AN / AF are reverse to each other.
TA8122AN / AF: Reverse characteristic
TA8123AN / AF: Normal characteristic
· Compact pakage
TA8122AN / 23AN: Shrink DIP 24 pin (1.78mm pitch)
TA8122AF / 23AF: Mini flat package 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: 0.31g (typ.)
1 2002-10-30
1 page  
Pin
No.
Characteristic
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
V16 = open→FM
LPF1
17
LPF terminal for phase detector
VCO stop terminal
V17 = VCC→VCO stop
18 FM ST DET in
Internal Circuit
TA8122, 23AN / AF
DC Voltage (V)
(AT No Signal)
AM FM
1.0 1.0
2.5 2.5
(VCO
stop
mode)
3.0 2.2
(VCO
stop
mode
2.7)
2.7 2.2
0.7 0.7
5 2002-10-30
5 Page 
Test Circuit 2
TA8122, 23AN / AF
Coil Data
Coil No.
Test
Freq.
L Co
(µH) (pF)
Qo
1-2
Turns
2-3 1-3 1-4
4-6
Wire
(mmf)
Reference
L1 FM RF 100MHz —
— 100 —
—
—
2
1
2
—
0.5UEW (S) 53T-037-202
L2 FM OSC 100MHz —
— 100 —
— 23
4
—
—
0.5UEW (S) 0258-244
T1 AM OSC 796kHz 288 — 115 13 73 — — — 0.08UEW (S) 4147-1356-038
T2 AM IFT 455kHz — 180 120 — — 180 — 15 0.08UEW (S) 2150-2162-165
(S): SUMIDA ELECTRIC CO., LED.
11 2002-10-30
11 Page | ||
| Páginas | Total 18 Páginas | |
| PDF Descargar | [ Datasheet TA8122AN.PDF ] | |
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