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參數資料
| 型號： | TK14489V |
| 廠商： | TOKO INC |
| 元件分類： | 接收器 |
| 英文描述： | FM, AUDIO SINGLE CHIP RECEIVER, PDSO20 |
| 封裝： | TSSOP-20 |
| 文件頁數： | 8/25頁 |
| 文件大小： | 2570K |
| 代理商： | TK14489V |
TK14489V
GC3-E011E
Page 16
10. PIN DESCRIPTION
Pin No.
Pin Description
Internal Equivalent Circuit
Description
1OSC(B)
Base pin of Colpitts type oscillator.
Colpitts type oscillator consists of 1
st and 2nd pin.
2OSC(E)
Vcc
1
2
Emitter pin of Colpitts type oscillator.
Inputting power from an external one for a local
oscillator, injected into 1
st pin and open 2nd pin.
3NC
4MIXER OUT
Mixer output pin. Mixer output is outputted from
a emitter follower through 1.5k
resistor.
5V
CC
Vcc
4
1.5k
5
Supply voltage pin.
6IF INPUT
IF limitter amplifier input pin.
This pin is terminated with inner 1.5k
resistor.
7
DECOUPLE
Decoupling(bypass) capacitor connection pin.
8
DECOUPLE
Vcc
6
8
7
101.5k
100k
1.5k
Decoupling(bypass) capacitor connection pin.
9
PHASE SHIFT
Limiter amplifier load resistor connection pin.
10
QUAD COIL
Vcc
10
9
10p
Phase shifter connection pin.
11
AF OUTPUT
Vcc
11
Audio output pin.
12
RSSI OUTPUT
Vcc
12
RSSI(S meter) output pin.
RSSI This pin is opencollector output by PNP
transistor.
13
FILTER
AMP
INPUT
Vcc
13
Filter amplifier input pin.
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