la1145 Sanyo Semiconductor Corporation, la1145 Datasheet - Page 7

• Manufacturer Part Number: la1145
• Description: Fm If System Quadrature Detector For Car Radio
• Manufacturer: Sanyo Semiconductor Corporation

LA1145 Pin Functions (1)
Pin No.
1
2
3
4
5
6
7
8
9
IF input
Bias pin
GND
Soft mute start point
control
Soft muting gradient
control pin
Mute Att
FM-AF output
AFC input
IF output
Function
Internal Equivalent Circuit
LA1145, 1145M
IF limiting amp
GND
For setting the soft mute starting point.
Can be used for S-meter output.
For setting the mute gradient from the soft
mute starting point to the noise finishing
point.
For setting amount of mute attenuation.
The demodulation level changes when the
external resistance value is varied.
Output to the phase circuit
Notes
No. 2725-7/17