Preliminary
HT9015
Pin No.
Pin Name
I/O
Description
FM demodulator output pin. Output signal frequency is within
the audio band.
32
AF_OUT
O
Normally provides a 455kHz carry frequency for the FM quadra-
ture detector.
33
34
QUAD
I
IF amplifier output pin. Signal will later pass through external
90°C phase shifter for quadrature detector.
IF_OUT
O
35
36
GND1
DEC
Analog ground
¾
¾
Normally connected to VCC1 through a capacitor.
IF amplifier input pin it is necessary to use the IF filter network
to get high quality IF signal.
37
38
39
40
41
42
43
44
45
IF_IN
I
¾
O
¾
I
VCC1
Analog power supply
Second mixer IF signal output pin and down converter. IF fre-
quency is 455kHz.
2NDMIX_OUT
N_REC
Connect to ground through capacitor.
Second mixer RF signal input pin and down converter. Fre-
quency is 455kHz.
2NDMIX_IN
E_RECT
Expander rectifier filter capacitor pin.
¾
O
O
I
First mixer IF signal output pin and down converter. IF fre-
quency is 10.7MHz.
1STMIX_OUT
VREF
Reference voltage input for compander.
The first mixer RF signal input. Carrier frequency from
20~60MHz.
1STMIX_IN
46
47
VCC2
Directly connects to the two voltage regulators inside.
Normally connected to ground through a capacitor.
¾
VCO_CONT
I
Connects LC network with VCO2 pin to provide the tank circuit
for the received voltage control oscillator.
48
VCO1
I
Absolute Maximum Ratings
Supply Voltage...........................VSS-0.3V to 6V
Input Voltage .................VSS-0.3V to VCC+0.3V
Storage Temperature.................-55°C to 150°C
Operating Temperature ..............-20°C to 70°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.
5
April 10, 2000
HOLTEK [ HOLTEK SEMICONDUCTOR INC ]
