la1145 Sanyo Semiconductor Corporation, la1145 Datasheet - Page 8

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

LA1145 Pin Functions (2)
Pin No.
10
11
12
13
14
15
16
17
18
IF input
Vref
V
IF buffer output
GND
Mute driver
S-meter output
SD sensitivity setting
SD output
CC
Function
Internal Equivalent Circuit
LA1145, 1145M
IF input via the phase shift circuit. The mute
circuit malfunctions and demodulation output
decreases if the voltage level at this pin
drops below 180 mV.
4.8 V
Supply voltage 7.5 to 14 V
FM detection circuit GND
Amount of mute attenuation depends on and
is controlled by the voltage at this pin.
PNP open collector output
Can be used for S-meter output
High active
Notes
No. 2725-8/17