Pioneer PD-M423 Servicehandleiding - Pagina 24
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PD-M423, PD-M403
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9.
IC INFORMATION
© The information shown in the list is basic information and may not correspond exactly to that shown in the schematic diagrams.
Wi TC926SP (1C401)
D/A Convertor IC
@ Pin Arrangement (Top view)
@ Block Diagram
(7)
(13)
(4)
(t')
Oscillation circuit
vba
ra)
Lo
GNDA
GNDO
Power supply pin of digital section.
=
am
2
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0 [Letemetsenimeninoutin
CS
ON
a
Ground pin of digital section.
Ground pin of crystal oscillation section.
Connected to crystal oscillator.
Generates clock required for the system.
Power supply pin of crystal oscillation section.
System clock output pin.
De-emphasis filter control pin.
De-emphasis filter on at "H".
De-emphasis filter off at "L".
Normal speed/ <2 speed selection pin.
"H" : Normal speed, "L": x2 speed.
Bit clock input pin.
LR clock input pin.
34