HA12163 Hitachi Semiconductor, HA12163 Datasheet - Page 17
HA12163
Manufacturer Part Number
HA12163
Description
Audio Signal Processor for Car Deck and Cassette Deck (Dolby B-type NR with PB Amp)
Manufacturer
Hitachi Semiconductor
Datasheet
1.HA12163.pdf
(66 pages)
Available stocks
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Part Number
Manufacturer
Quantity
Price
Part Number:
HA12163
Manufacturer:
HITACHI/日立
Quantity:
20 000
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4. Input Block Diagram and Level Diagram
5. Adjustment of Playback Dolby Level
After replace R34 and R35 with a half-fix volume of 10 k , adjust RECOUT level to be Dolby level
R34
5.1 k
R39
180
R38
330 k
with playback mode.
R35
5.1 k
R36
12 k
C25
0.01
R37
18 k
EQ OUT
EQ OUT-M
EQ AMP.
NFI
R
V
F
REF
IN
IN
–
Figure 2 Input Block Diagram
+
30 mVrms
(–28.2 dBs)
0.6 mVrms
(–62.2 dBs)
C24
0.1
TAI
42.4 mVrms
(–25.2 dBs)
RAI
INPUT AMP.
The each level shown above is typical value
when offering PBOUT level to PBOUT pin.
(EQ AMP Gv = 40 dB f = 1 kHz)
+
–
HA12163: 300 mVrms (–8.2 dBs)
HA12164: 450 mVrms (–4.7 dBs)
HA12165: 580 mVrms (–2.5 dBs)
HA12160: 550 mVrms (–2.9 dBs)
Rev.4, Jun. 1999, page 17 of 66
NR circuit
PBOUT
HA12163 Series
RECOUT
300 mVrms
(–8.2 dBs)
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