HA12203NT Datasheet, PDF (7/97 Pages) Hitachi Semiconductor – Audio Signal Processor for Cassette Deck(Dolby B-type NR with Recording System)

Block Diagram
HA12203NT
V_CC ^VCC
BIAS(M)
BIAS(C)
BIAS(N)
V_CC
MSDET
MSIN
MAOUT
MAI
GPCAL
RECCAL
EQOUT(L)
EQIN(L)
RECOUT(L)
PBOUT(L)
DET(L)
RIN(L)
BIAS 2
BIN(L)
ABO(L)
AIN(L)
GND
HA12203NT/HA12204NT
MSOUT
LM ON / OFF
REC / PB / PASS
NR ON / OFF
RM ON / OFF
BIAS ON / OFF
B NORM / CROM / METAL
NORM / HIGH
A 120 / 70
PB A / B
EQOUT(R)
EQIN(R)
RECOUT(R)
PBOUT(R)
DET(R)
RIN(R)
BIAS 1
BIN(R)
ABO(R)
AIN(R)
V_EE
Rev.3, Jun. 1999, page 7 of 97