U4468B ATMEL Corporation, U4468B Datasheet - Page 3

• Manufacturer Part Number: U4468B
• Description: Quasi-split Sound Circuit And Am Demodulator Ic
• Manufacturer: ATMEL Corporation

Pin Configuration
Figure 2. Pinning DIP16
Pin Description
4777A–TVVCR–01/04
11, 15, 16
1, 2
8, 9
Pin
10
12
13
14
3
4
5
6
7
VSW,MUTE Mute switch
VSW,AGC
Symbol
VO,FM
VO,FM
CAGC
VVCO
CREF
GND
VI,IF
NC
VS
LF
Function
IF input (symmetrical)
Capacitor for the AGC time constant
Capacitor for the internal reference voltage
Loop filter
AF output (AM sound)
VCO circuit
Intercarrier output (FM sound)
Ground
Supply voltage (5 V)
Not connected
Standard switch
VSW,AGC
VO,AM
CAGC
VVCO
CREF
VIIF
VIIF
LF
1
2
3
4
5
6
7
8
U4468B
16
15
14
13
12
11
10
9
NC
NC
GND
NC
VSW,MUTE
VVCO
VS
VO,FM
U4468B
3