Pin No.

Pin Name

I/O

Description

32

AF_OUT

O FM demodulator output pin. Output signal frequency is within

the audio band.

33

QUAD

I

Normally provides a 455kHz carry frequency for the FM quadra-

ture detector.

34

IF_OUT

O IF amplifier output pin. Signal will later pass through external

90°C phase shifter for quadrature detector.

35

GND1

¾ Analog ground

36

DEC

¾ Normally connected to VCC1 through a capacitor.

37

IF_IN

I

IF amplifier input pin it is necessary to use the IF filter network

to get high quality IF signal.

38

VCC1

¾ Analog power supply

39

2NDMIX_OUT

O Second mixer IF signal output pin and down converter. IF fre-

quency is 455kHz.

40

N_REC

¾ Connect to ground through capacitor.

41

2NDMIX_IN

I

Second mixer RF signal input pin and down converter. Fre-

quency is 455kHz.

42

E_RECT

¾ Expander rectifier filter capacitor pin.

43

1STMIX_OUT

O First mixer IF signal output pin and down converter. IF fre-

quency is 10.7MHz.

44

VREF

O Reference voltage input for compander.

45

1STMIX_IN

I

The first mixer RF signal input. Carrier frequency from

20~60MHz.

46

VCC2

¾ Directly connects to the two voltage regulators inside.

47

VCO_CONT

I

Normally connected to ground through a capacitor.

48

VCO1

I

Connects LC network with VCO2 pin to provide the tank circuit

for the received voltage control oscillator.

Absolute Maximum Ratings

Storage Temperature.................-55°Cto150°C

Operating Temperature ..............-20°Cto70°C

Note: These are stress ratings only. Stresses exceeding the range specified under ²Absolute Maxi-

mum Ratings² may cause substantial damage to the device. Functional operation of this device

at other conditions beyond those listed in the specification is not implied and prolonged expo-

sure to extreme conditions may affect device reliability.

HT9015

5

April 10, 2000

Preliminary