U4468B Datasheet, PDF (3/11 Pages) ATMEL Corporation – Quasi-split Sound Circuit and AM Demodulator IC

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