JVC XP-A1000BK - Page 22

XP-A1000BK
DAP Block Diagram
Fig. 7 shows the tentative block diagram of our digital
acoustics processor. A total of three VLSI (Very Large- fields.
Scale Integrated) circuits (see Fig. 8) are used for digital
Fig.7 TENTATIVE BLOCK DIAGRAM OF THE DIGITAL ACOUSTICS PROCESSOR
Analogue In
Digital In
DAP LSI
for ER
DAP LSI
for ER
Fig.8 | BLOCK DIAGRAM OF THE CUSTOMIZED VLSI CIRCUIT
CRYSTAL O——» osc
o—| DRAM DP
DRAM
a
eee
i
DRAM
I/O
a
aa eae
PROG ROM
OVERFLOW
DETECTOR
SHIFT
1-22
(No.
20062)
MULTIPLIER
processing
to
provide
high-quality
reproduction
of
sound
Analogue
O Main Out
i Analogue
¥—¥—0 Front
DAP Out
j Analogue
cord ——O Rear
Rear Master DAP Out
DAP = Volume
Level
Digital
Main Out
(The ough)
CONTROL DATA COEFFICIENT CONTROL
pay
SIGNAL
INPUT REG © DATA IN
OUTPUT REG 1 O
SIGNAL
DATA OUT
OUTPUT REG 2 9