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CIRCUIT DESCRIPTION
DMC-J3
2. DSP, ACIRC / ATRAC Recoder : CXD2655R (X33 : IC7)
Pin description
Pin No.
Pin Name
I/O
Description
1
MNT0
I/O
Monitor signal interface.
2-4
MNT1-3
O
Monitor output port.
5
SWDT
I
Data input port of microprocessor serial interface.
6
SCLK
I
Shift clock input port of microprocessor serial interface.
7
XLAT
I
Latch input port of microprocessor serial interface. Falling edge=latch.
8
SRDT
O
Data output port of microprocessor serial interface.
9
SENS
O
Status output port of microprocessor by address serial interface.
10
XRST
I
Reset. L=reset.
11
SQSY
O
Disc sub code Q sync/ADIP sync output.
12
TST2
I
Test port.
13
DATAI
I
External audio data input port to DAC.
14
DAVDD
–
Power supply for DAC.
15
AOUTL
O
DAC L-ch output port.
16
OSCI
I
Oscillation input port(512s=22.5792MHz).
17
OSCO
O
Oscillation output port.
18
AOUTR
O
DAC R-ch output port.
19
DAVSS
–
DAC GND.
20
TST1
I
Test port.
21
MUTFGL
O
L-ch zero data detection flag output port.
22
DOUT
O
Digital audio interface signal output port.
23
XINT
O
Interruptive requirement output port.
24
DADT
O
Audio data output port to external audio block.
25
LRCK
O
LRCK(44.1kHz) output port to external audio block.
26
XBCK
O
Bit clock(2.8224MHz) output port to external audio block.
27
FS256
O
256Fs output port.(11.2896MHz).
28
DVDD
–
Digital power supply.
29-39
A03-11
O
Address output port of DRAM.
40
DVSS
–
Digital GND.
41
XOE
O
Output inable port of DRAM.
42
XCAS
O
CSA output port of DRAM.
43
A09
O
Address output port of DRAM.
44
XRAS
O
RAS output port of DRAM.
45
XWE
O
Write inable output port of DRAM.
46-49
D1-3
I/O
Data bus port of DRAM.
50
MVCI
I
Clock input port of VCO(784fs).
51
ASYO
O
Playback EFM full swing output port.(L=Vss).
52
ASYI
I
Playback EFM comparator slice input port..
53
AVDD
–
Analog power supply.
54
BIAS
I
Playback EFM comparator bias current input port..
55
RFI
I
Playback EFM rf signal input port..
56
AVSS
–
Analog GND.
57
PDO
O
EFM decoder analog PLL phase comparator output port.
58
PCO
O
Playback digital master PLL phase comparator output port.
59
FILI
I
Playback digital master PLL filter input port.
60
FILO
O
Playback digital master PLL filter output port.
61
CLTV
I
Playback digital master PLL VCO control voltage input port.
DMC-J3(K)1P(
98.4.25
19:57
y [ W
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