JVC XP-A1000BK - Page 28

XP-A1000BK
@
YM36238B
(IC706)
........
LSI
FOR
RECEIVING
AND
REPRODUCING
THE
DIGITAL
AUDIO
INTERFACE
FORMAT
SIGNAL
(1)
General:
(2)
Sketch
drawing
YM3623B performs the following functions:
1. Internal PLL circuit and synchronization with the
external digital audio format signal. Thus, the sam-
pling frequency automatically follows the signal.
2. Outputs the audio signal with MSB first, and out-
puts, synchronously with the audio signal, the sig-
nals which indicate the D/A output sample hold
timing clock, left channel and right channel.
3. The terminal for output of subcodes, and can fetch
subcode data.
4.
Outputs
the
sampling
frequency,
copy
enable,
presence
of
emphasis
and
presence
of
errors
of
transferred
audio
signals.
5.
Re-outputs
the
previous
audio
data
if
a
digital
au-
dio
interface
format
signal
error
is
detected.
(3) Internal block diagram
4.vss2 6.Xx1 5.x0 7. KMODE 8.24
et eo TT] 57m
| /
Be
oscillating circuit
Clock Timing pulse || 18.WC
selection clock generation
veh itl
vco
| | is.o16r
Phase difference
detecting circuit
fk Latch timing generation
28.DIN mm
[J 17.00
T] 21
10.74
WF
tVvDOl
l4VSSi
22.SEL 2452 23.31 I6DEF 26.SSYNC 25.SCK 27.500
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