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HD49235FS Datasheet(PDF) 4 Page - Hitachi Semiconductor

Part # HD49235FS
Description  Digital Signal Processor for CD
PDF  41 Pages
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Manufacturer  HITACHI [Hitachi Semiconductor]
Direct Link  http://www.renesas.com/eng
Logo HITACHI - Hitachi Semiconductor

HD49235FS Datasheet(HTML) 4 Page - Hitachi Semiconductor

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HD49235FS
Rev.2, Aug. 1995, page 4 of 41
Pin Description (cont)
Pin
Polarity
No. Symbol
Name
I/O*
Connection
Function
H
L
21
MPX
Multiplex
O
DAC or ROM
decoder
Left/right channel switching
signal output (44.1 kHz at
normal speed, synchronized
with DAS)
22
C2F
C2 flag
O
ROM decoder
C2 error flag output
Error
23
QMX
Quad multiplex O
4
× MPX clock signal
(176.4 kHz at normal speed,
synchronized with DAS)
24
DMX
Double
multiplex
O2
× MPX clock signal
(88.2 kHz at normal speed,
synchronized with DAS)
25
UCK
µ-com clock
O
Microprocessor Clock output for
microprocessor
(8.5 MHz or 17 MHz)
26
TC1
Test C1 flag
O
C1 error flag monitor pin
Error
27
MCK
Master clock
O
Master clock output
(33.8688 MHz)
28
NC
No connection —
Open or VDD
Not connected
29
XCO
X’tal clock
output
XO
Crystal
oscillator
Crystal oscillator output
30
XCI
X’tal clock
input
XI
Crystal
oscillator
Crystal oscillator input
31
V
SS (D)
V
SS (digital)
—
Digital ground
32
NC
No connection —
Open
Not connected
33
NC
No connection —
Open
Not connected
34
NC
No connection —
Open
Not connected
35
NC
No connection —
Open
Not connected
36
NC
No connection —
Open
Not connected
37
NC
No connection —
Open
Not connected
38
NC
No connection —
Open
Not connected
39
NC
No connection —
Open
Not connected
40
NC
No connection —
Open
Not connected
41
NC
No connection —
Open
Not connected
42
NC
No connection —
Open
Not connected
43
NC
No connection —
Open
Not connected
44
NC
No connection —
Open
Not connected



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