VSX-74TXVi
25
5
6
7
8
5
6
7
8
C
D
F
A
B
E
3.1.5 DSP BLOCK DIAGRAM
ANALOG IN
(2ch)
RST
DAUX
DIGITAL
RX**
3LINE DATA
ANALOG
OUT
SPI+RST
SPI+RST
SPI+RST
SPI+RST
SPDIF
RST
SPI
4LINE DATA
& CLOCK
1.Description of Device ICs
IC No
IC Name
Description of function
IC 482
A/D Converter
C
onverts signals from an analog source into digital signals.
IC 301
Digital Audio Interface Transceiver & Receiver
Selecting digital data.
IC 101
DSP
Decoder for compressed sound such as AC-3 and DTS.
IC 201
DSP
P Company's original processor such as SFC.
IC 201
DSP Microcomputer
Think of these two as a single microcomputer.
IC 202
FLASH ROM
Microcomputer programs are stored in the flash rom.
IC 551,651,751,
851,951
D/A Converter
Converts digital signals into analog signals.
2.Description of Abbreviated Names
Signal name
Formal signal name
Description of signals
SPI
SONY/Philips Digital Interface
Consumer format used for exchanging digital audio signals.
RST
RESET
Reset signal.
PPP
Post Processing Phase
Denotes DSP processing (P Company's original surround processing),
which are executed at the latter part of a decoder area.
DSP CONTROL
u-COM
(100pin)
PEG117A
IC201
FLASH ROM
4Mbit
(512kbyte)
IC202
16bit DATA BUS
19bit ADDRESS BUS
DIT&DIR
AK4114VQ
IC301
AD
PCM1803DB
(BB)
IC482
DSP(DECODER)
SHARC EX
ADSP-21266
IC101
DSP(PPP)
MOTOROLA
DSPC56371AF180-K
IC201
MAIN u-COM
PEG116A
IC101
HDMI
1394
DA
DSD1791DBR
(BB)
CN6203
CN301(1/2)
CN351(2/2)
CN301(2/2)
CN352(2/2)
CN302(2/2)
CN351(1/2)
CN352
(1/2)
CN302
(1/2)
A
L
M
IC551(FL,FR) , IC651(C,SW)
IC751(SL,SR) , IC851(SBL,SBR)
IC951(STL,STR)...
VSX-74TXVi ONLY