VSX-AX4AVi-S
200
1
2
3
4
1
2
3
4
C
D
F
A
B
E
2nd DSP
MOTOROLA
56371
180MHz
3.3V
1.25V
3.3V &
1.2V
B/L
Data
B/L
Digital Audio
Data & Clock
(I2S) Output
CN351
CN351
From
DIGITAL
MOTHER
Assy
Digital Audio
Data & Clock
(I2S) Input
Data
20MHz
1st DSP
SHARC EX
21266
200MHz
ROM
16M
SRAM
4M
1st DSP
GNDD
GNDD
GND
GND
5.0V
GNDD
GNDD
VDD5
REG
1.20V
3.3V
REG
3.3V
1.25V
B/L
Data
Audio Clock
MCK: Master Clock
B/L: Bit & LR Clock
Data: Audio Data
DSP UCOM (DIGITAL MOTHER ASSY IC201)
B/L
MCK
Data
DSP Block Diagram
• CORE Block
• Power Block and GND Map
DSP ASSY
DSP ASSY
CN352
CN352
From
DIGITAL
MOTHER
Assy
3.3V
Flash ROM
SRAMs
Logic ICs
GNDD
CN501, CN502
3.3V &
1.25V
2nd DSP
REG
1.25V
3.3V
REG
GNDD
: Shows internal ground (GNDD)
3.3V
OSC
M
M