ICs for VCR
1
AN3328S
2-head recording and playback amplifier IC (A2) for HiFi VCR
n Overview
The AN3328S is a 2-head recording and play-
back amplifier IC for HiFi audio, and realized
reduction of pin numbers. The package is a small
outline of 16 pins, 1.27 mm pitch and supply volt-
age is 5 V of single supply.
n Features
• Damping-less amp. in playback system
• No adjustment of recording current by AGC
• 3-step switchover of recording current level with
the current emphasis switch (typ. – 1.8 dB)
n Applications
• HiFi VCR
SOP016-P-0225C
Unit: mm
n Block Diagram
1 2 3 4 5 6 7 8
16 15 14 13 12 11 10
9
HA1 HA2
LH
Det
Curr.
Amp.
AGC
REC / PB select
HSW
CH1 in
GND (small signal)
CH2 in
REC reg2
REC out
REC C GND
REC reg1
Curr. emph. SW
PB out & REC / mute REC in V
CC
REC curr. monitor
10.09 – 0.20
16 9
18
(0.60)
0.40 – 0.10
Seating plane Seating plane
4.30
–
0.20
6.40
–
0.30
1.50
–
0.20
0.10
–
0.10
0.65
–
0.10
0.65
–
0.10
1.27
+
0.10
0.15
-
0.05
0 to 10
0.50 – 0.20