ta31273fn TOSHIBA Semiconductor CORPORATION, ta31273fn Datasheet - Page 3

• Manufacturer Part Number: ta31273fn
• Description: Am Rf/if Detector Ic
• Manufacturer: TOSHIBA Semiconductor CORPORATION

No.
Equivalent circuits are given to help understand design of the external circuits to be connected. They do not
accurately represent the internal circuits.
Pin
11
12
14
13
15
16
17
18
19
20
RF IN
RF DEC
RF OUT
MONI
GND1
MIX IN
BS
RSSI
FIL IN
FIL OUT
Pin Name
RF signal input pin.
Emitter pin for internal transistor.
RF amp output pin.
Since this pin is connected to an internal circuit, it
should either be left open or connected to GND.
GND pin 1.
Mixer input pin.
Battery saving pin.
RSSI output pin.
AM LPF input pin.
AM LPF output pin.
Function
3
19
5.5 kΩ
16
Internal Equivalent Circuit
11
13
17
18

50 kΩ
20
14
12
TA31273FN
3 kΩ
2002-07-08
500 Ω