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UPD9903 Datasheet(PDF) 13 Page - NEC

Part # UPD9903
Description  UPD9903 ANALOG SUBSCRIBER LINE LSI DIGITAL CODEC
PDF  28 Pages
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Manufacturer  NEC [NEC]
Direct Link  http://www.nec.com/
Logo NEC - NEC

UPD9903 Datasheet(HTML) 13 Page - NEC

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µPD9903
13
Timing charts
(1) PCM data transmission timing (HWX pin)
(a) DCLK is later than FS
FS
DCLK
tR
tCSD2
tWHS
tF
tCY
tR
tDCLK
tF
tDCLK
tDZX2
tDDX
12
8
tHZX
HWX
(PCM data)
MSB
2nd
7th
LSB
Hi-Z
tDZX2
tHZX
Hi-Z
TYPE
Hi-Z
Hi-Level
(b) FS is later than DCLK
FS
DCLK
tCSD1
tDZX1
12
8
HWX
(PCM data)
MSB
2nd
7th
LSB
tWHSC
Hi-Z
tDZX1
Hi-Z
TYPE
Hi-Level
Hi-Z



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