Pioneer VSX-607RDS Service Manual page 40

VSX-607RDS, VSX-407RDS
CXD2724Q (VOLUME DSP ASSY : IC201)
• DSP IC
•
Block Diagram
RVDT
SCK
XLAT
READY
LRCK
BCK
SI
XMST
•
Pin Function
No. Pin Name
1-3 T.P
4 VSS0
5-8 T.P
9 TST0
10 VDD0
11 VSS1
12 TST1
13 TST2
14 TST3
15 TST4
16 XRST
17 BFOT
18 CSL1
19 CSL2
20 VSS2
21 AVS3
22 AVD3
23 LOUT
24 AVD1
25 AVS1
26 LO1
27 LIN
28 AVD5
29 AVS5
30 XCOUT
31 AVDX
32 XTLO
40
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24k bit DELAY RAM
50
MICRO
46
COMPUTER
49
I/F
47
58
SERIAL
57
DATA
55
I/F
60
CLOCK GENERATOR
33
XTLI
I/O Function
O Monitor pin for test Normally, outputs "L".
– Digital ground
O Monitor pin for test Normally, outputs "L".
I Test pin Normally, fix to L.
– Digital power supply
– Digital ground
I Test pin Normally, fix to "L".
I Test pin Normally, fix to "L".
I Test pin Normally, fix to "L".
I Test pin Normally, fix to "L".
I System reset input L : reset.
O Clock and divided frequency output (384/768/256/512 fs)
I Test pin Normally, fix to "H".
I Test pin Normally, fix to "L".
– Digital ground
– Ground for L-ch D/A converter
– Power supply for L-ch D/A converter
O L-ch A/D converter output
– Power supply for L-ch A/D converter
– Ground for L-ch A/D converter
O OP amp. inverting output for LPF of L-ch A/D converter
I Analog input of L-ch A/D converter
– Power supply for C-ch D/A converter
– Ground for C-ch D/A converter
O C-ch D/A converter output
– Analog power supply for master clock
O Crystal oscillation circuit output
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ADC1
ADC2
DSP
DAC1
DAC2
DAC3
/TIMING CIRCUIT
DAC4
32 17
XTLO BFOT
LIN
27
LO1
26
38 RIN
LO2
39
Analog SW
23 LOUT
42 ROUT
Analog SW
Trim Vol 30 XCOUT
XSOUT
Trim Vol 35