HA12134A Datasheet, PDF (2/27 Pages) Hitachi Semiconductor – Dolby B-Type Noise Reduction System

HA12134A, HA12135A, HA12136A
Ordering Information
Type No
HA12134A
HA12134AF
HA12135A
HA12135AF
HA12136A
HA12136AF
Dolby Level (mVrms)
300
450
580
Package
DP-16
FP-16DA
DP-16
FP-16DA
DP-16
FP-16DA
Block Diagram
REC IN
16
GND PB IN
15
14
BIAS REC/PB PB OUT DET ^{REC OUT}
18 k
22 k
13
12
11
0.22 µ
10
9
BIAS
SW
BUF
AMP
SW
BUF
AMP
SIDE
CHAIN
SIDE
CHAIN
1
2
REC IN V CC
3
4
5
6
+
+ 22 k
1µ
22 µ
7
8
0.22 µ
PB IN
V REF NR
ON/OFF
PB OUT DET REC OUT
Rev.3, Jun. 1999, page 2 of 27