Pioneer VSX-94TXH Service Manual page 37

5
QQ DSP Block Diagram
3 7 63 1515 0
• CORE Block
Digital Audio
Data & Clock
(I2S) Output Data
• Power Block and GND Map
TE
L 13942296513
CN401
From
DIGITAL
MOTHER
Assy
GND
www
.
5
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DSP ASSY
FREESCALE
B/L B/L
Data
20MHz
DSP UCOM
DSP ASSY
3.3V
AWX8869- /J
1.2V
DC/DC
1st DSP
3.3V &
1.2V
GNDD
Flash ROM
GNDD
SRAMs
Logic ICs
3.3V
GNDD
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y
i
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6
8
ROM
1M
2nd DSP 1st DSP
SHARC EX
56371 21366
180MHz 330MHz
B/L
3.3V
Data
1.25V
Audio Clock
Q Q
3 6 7 1 3
REG
1.25V
REG
2nd DSP
3.3V &
1.25V
GNDD
Flash
ROM
3.3V
GNDD
OSC
3.3V
GNDD
: Shows internal ground (GNDD)
u163
.
VSX-94TXH
6
7
2 9 9 4 2 8
SRAM ROM
4M 16M
MCK
B/L
3.3V
1.2V Data
MCK: Master Clock
B/L: Bit & LR Clock
Data: Audio Data
VDD5
1 5 0 5 8 2 9 9 4
5.0V
CN402
GNDD
m
co
7
8
9 9
A
Digital Audio
Data & Clock
(I2S) Input
B
C
2 8 9 9
From
DIGITAL
MOTHER
Assy
D
GND
E
F
37
8