JVC XP-A1000BK - Digital Signal Processor (Dsp)

Description of Major LSI
@ VC4097-003 (IC606, 607), VC4097-002 (IC605)
(1) General:
The VC4097 is a single chip digital acoustic signal
processor for sound-field control. It provides many
advantages, such as, highly-precise digital delay with
high quality that cannot be performed by an analog
delay system, read/write of digital sound field data,
(2) Internal Block Diagram
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KOO Timing generation
circuit
oscs©Q
Control register
SDINO
Delay shift
register
Coefficient
TEST3O RAM
TEST2O
TEST1IO ant
Multiplier
Adder-subtracter
Overflow
detecting
ciurcuit
TX/TY register
Data output circuit
XP-A1000BK
DIGITAL SIGNAL PROCESSOR (DSP)
various audio-visual (AV) digital surround effects with
high-grade thruput simultaneously executing arith-
metic operations, and simulation of the natural rever-
beration of a hall, stage, stadium, etc., by folding the
initial reflected sound and calculating reverberation.
PERIOO
ICK
OIDATA
EXROMS
EXROM8
EXROM7
EXROM6
EXROMS
EXROM4
EXROM3
EXROM2
EXROM1
EXROMO
External RAM
address signal
generation
circuit
1lOA1QO
(No. 20062) 1-23