UPD9903GT NEC [NEC], UPD9903GT Datasheet - Page 13

• Manufacturer Part Number: UPD9903GT
• Description: UPD9903 ANALOG SUBSCRIBER LINE LSI DIGITAL CODEC
• Manufacturer: NEC [NEC]

Timing charts
(1) PCM data transmission timing (HW
(PCM data)
(PCM data)
(a) DCLK is later than FS
(b) FS is later than DCLK
DCLK
TYPE
HW
DCLK
TYPE
HW
FS
FS
X
X
t
CSD2
Hi-Z
Hi-Z
t
R
Hi-Z
Hi-Z
t
CSD1
t
t
DZX1
DZX1
t
t
DZX2
DZX2
1
1
t
WHSC
MSB
t
MSB
CY
t
DCLK
t
R
X
pin)
2
t
DDX
t
DCLK
2
Hi-Level
Hi-Level
2nd
t
F
2nd
t
WHS
7th
7th
8
8
LSB
LSB
t
t
PD9903
HZX
HZX
Hi-Z
Hi-Z
13
t
F