
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
Analog ground
36
DEC
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
Analog power supply
39
2NDMIX_OUT
O
Second mixer IF signal output pin and down converter. IF fre-
quency is 455kHz.
40
N_REC
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
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
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
Supply Voltage...........................V
SS
0.3V to 6V
Storage Temperature................. 55 C to 150 C
Input Voltage .................V
SS
0.3V to V
CC
+0.3V
Operating Temperature .............. 20 C to 70 C
Note: These are stress ratings only. Stresses exceeding the range specified under Absolute Maxi-
mumRatings maycausesubstantialdamagetothedevice.Functionaloperationofthisdevice
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