JVC KD-S847 Service Manual page 40

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KD-S847
QQ
3 7 63 1515 0
4.14 TC94A14FA (IC541) : DSP & DAC
• Pin layout & Block daiagram
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LPF
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TE
L 13942296513
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1
• Pin function
Pin No Symbol I/O
1
BCK
O
Bit clock output pin.32fs, 48fs, or 64fs selectable by command.
2
LRCK
O
L/R channel clock output pin."L" for L channel and "H" for R channel.
Output polarity can be inverted by command.
3
AOUT
O
Audio data output pin. MSB-first or LSB-first selectable by command.
4
DOUT
O
Digital data output pin.Outputs up to double-speed playback.
5
IPF
O
Correction flag output pin. When set to "H", AOUT output cannot be corrected by C2 correction processing.
6
V
-
Digital 3.3V power supply voltage pin.
DD3
7
V
-
Digital GND pin.
SS3
8
SBOK
O
Subcode Q data CRCC result output pin. "H" level when result is OK.
9
CLCK
O
Subcode P-W data read I/O pin. I/O polarity selectable by command.
10
DATA
O
Subcode P-W data output pin.
www
11
SFSY
O
Playback frame sync signal output pin.
12
SBSY
O
Subcode block sync signal output pin. "H" level at S1 when subcode sync is detected.
13
HSO
I/O General-purpose input / output pins.Input port at reset.
14
UHSO
15
PV
-
PLL-only 3.3V power supply voltage pin.
DD3
16
PDO
O EFM and PLCK phase difference signal output pin.
1-40 (No.49832)
http://www.xiaoyu163.com
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45
44
43
Clock
generator
1-bit
DAC
Address
circuit
16 k
RAM
Audio out
Digital
circuit
output
Micro-
controller
interface
2
3
4
5
6
x
ao
y
.
i
http://www.xiaoyu163.com
8
42
41
40
39
38
PWM
Servo
control
ROM
Digital equalizer
automatic
RAM
adjustment circuit
CLV servo
Synchronous
guarantee
EFM
decoder
Q Q
3
6 7
Sub code
decoder
7
8
9
10
11
Descroption
u163
2 9
9 4
37
36
35
34
33
D/A
A/D
Data
slicer
VCO
1 3
1 5
0 5
8
2 9
PLL
TMAX
12
13
14
15
16
m
co
.
2 8
9 9
32
31
30
29
28
27
26
25
24
23
22
21
9 4
2 8
9 9
20
19
18
17

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