ta31275 TOSHIBA Semiconductor CORPORATION, ta31275 Datasheet - Page 3

• Manufacturer Part Number: ta31275
• Description: Am/fm Rf/if Detector Ic For Low Power Wireless System
• Manufacturer: TOSHIBA Semiconductor CORPORATION

Pin No.
10
11
12
13
14
16
15
17
18
19
QUAD
V
DATA
RF IN
RF DEC
RF OUT
CHARGE
GND1
MIX IN
AM/FM
Pin Name
CC2
Phase-shift input terminal for the FSK
Demodulator.
Connect to the discriminator or LC.
Power supply pin 2.
FM/AM waveform shaping output pin.
Open collector output.
Connect a pull-up resistor.
RF signal input pin.
Emitter pin for internal transistor.
RF amp output pin.
Control terminal for quick charge circuit.
To use the quick charge circuit, attach a
capacitor.
GND pin 1.
Mixer input pin.
Changeover switch for ASK/FSK.
Hi: AM
Lo: FM
Function
3
10
TA31275FN/ TA31275FNG
13
18
15
10 kΩ
Internal Equivalent Circuit
12
500 Ω
19
500 Ω
1 kΩ 1 pF
300 kΩ


16
14
2 kΩ
5 kΩ
3 kΩ
03-01-23