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1999 Apr 14 4
Philips Semiconductors Product specification
Audio processor with head amplifier for VHS hi-fi TDA9605H
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4 BLOCK DIAGRAM
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dbook, full pagewidth
MGR834
M
M
M
M
TUL
SAP
V
CCH
GNDH
PBIN1
PBIN2
RECOUT
HMSW
1
TUNL
2
TUNR
3
CINL
4
40
39
37
35
36
38
CINR
5
EXT1L
6
EXT1R
7
EXT2L
SAP
TUL
TUR
E1L
E1R
E2L
E2R
8
EXT2R
9
AUXL
10
AUXR
N
dub
11
normal select
input select
volume right
M
normal
input
level
RF converter
mute
volume left
decoder
select
+1 dB 12 V
TDA9605H
1.7 or 1.8 MHz
SAP
21 22
LINOUT LININ
TUR
DCL
DCR
HID
HID
SDA SCL
DCFBL
26
25
EMPHL
24
DCL
23
DETL
DCFBR
EMPHR
DCR
DETR
TUL
E1L
SAP
TUR
E1R
E2L
E2R
V
CC
SAP
+
+ ++
+
+
41 44 42 43
standby select
SUPPLY
V
CC
GND
V
ref
I
ref
34 27 29 28
playback. +
record-mute,
recording
M
+
E2L
E2R
+
HF LFP
L
DCR
R
N
dub
HF LIMITER
PEAK HOLD
LEVEL
DETECTOR
PLL
CCO
(1.7 or
1.8 MHz)
LEVEL
DETECTOR
DROPOUT
CANCELING
HI-FI
DETECTOR
1.3 or 1.4 MHz
HF LFP
HF AGC
M
carrier ratio select,
record-mute
playback head
amplification,
record head
current
HF LIMITER
PLL
CCO
(1.3 or
1.4 MHz)
envelope output
select + record
envelope
output
select
+ playback
DCL
MUTEL
MUTER
LINEL
DECR
DECL
LINER
RFCOUT
MUTEC
mute
R
L
PEAK HOLD
AUTO-MUTE
line select
output selectAUTN
AUTN
M
NOISE
SUPPRESSION
NOISE
SUPPRESSION
RECTIFIER
NOISE REDUCTION
FM (DE-)MODULATOR
HEAD AMPLIFIER
I/O CONTROL
CCA
W + FM
5th ORDER
AUDIO LPF
COMPRESSOR
EXPANDER
DETECTOR
AUDIO
CLIPPER
I
2
C-BUS
INTERFACE
M
= mute
I
2
C-bus
control
HID
RM
RMHID
ENVOUT
RM
19
20
16
15
17
18
13
14
AUDIO
CLIPPER
12
RFCAGC
30
31
32
33
RECTIFIER
CCA
W + FM
5th ORDER
AUDIO LPF
COMPRESSOR
EXPANDER
DETECTOR
Fig.1 Block diagram.