Sony SCD-XB940 Service Manual page 71

• MAIN BOARD IC617 CXD2751Q (DSD DECODER)
Pin No. Pin Name
1 XSRQ
2 XSHD
3 VDD
4 VSS
5 SDCK
6 SMUTE
7 XMSLAT
8 MSCK
9 MSDATI
10 MSDATO
11 MSREDY
12 XMSDOE
13 XRST
14 MCKI
15 VSS
16 CK75S
17 EXCKO1
18 EXCKO2
19 LRCK
20 NC
21 MNT2
22 TRST
23 TCK
24 TDI
25 TENA1
26 TDO
27 VST
28 VDD
29 VSS
30 MNT1
31 MNT0
32 XBIT
33 F75HZ
34 SUPDAT
35 XSUPAK
36 SUPEN
37 TEST1
38 VSS
39 TEST2
40, 41 VSS
42 BCKD
43 to 45 NC
46 BCKA
47 DSAL
48 DSAR
49 ZDFLGL
I/O
O
Data request signal output to the RF signal decoder (IC622)
I
Header flag signal input from the RF signal decoder (IC622)
—
Power supply terminal (+3.3V)
— Ground terminal
I
Serial data clock signal input from the RF signal decoder (IC622)
I
Muting signal input from the system controller (IC605) "L": muting
I
Latch signal input from the system controller (IC605)
I Clock signal input from the system controller (IC605)
I
Serial data input from the system controller (IC605)
O
Serial data output to the system controller (IC605)
O
Ready signal input from the system controller (IC605) "L": ready
O Data enable signal output terminal Not used (open)
I
Reset signal input from the expander (IC612)
I
Master clock signal input terminal
—
Ground terminal
I Master clock select signal input terminal "L": 512fs, "H": 768fs (fixed at "H" in this set)
O
External clock 1 signal output terminal Not used (open)
O
External clock 2 signal output terminal Not used (open)
I/O
Clock signal input/output terminal (44.1kHz) Not used (open)
— Not used (open)
O
Monitor 2 signal output terminal Not used (open)
I
Reset signal input from the expander (IC612)
I
Clock signal input terminal for test (normally: fixed at "L")
I Data input terminal for test (normally: open)
I
Data enable signal input terminal for test (normally: open)
O
Data output terminal for test (normally: open)
—
Ground terminal for test (normally: fixed at "L")
—
Power supply terminal (+3.3V)
— Ground terminal
O
Monitor 1 signal output terminal Not used (open)
O
Monitor 0 signal output terminal Not used (open)
O
Monitor signal output terminal Not used (open)
O Clock output terminal (75Hz) Not used (open)
O
Serial data output terminal Not used (open)
O
Data flag signal output terminal Not used (open)
O
Data enable signal output terminal Not used (open)
I Test 1 signal input terminal for test (normally: fixed at "L")
—
Ground terminal
I
Test 2 signal input terminal for test (normally: fixed at "L")
—
Ground terminal
I Phase reference signal input terminal
—
Not used (open)
I
Shift clock signal input terminal
O
DSD data (Lch) output terminal
O DSD data (Rch) output terminal
O
Data (Lch) flag detect signal output terminal
Description
"L": reset
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