UPD9903GT NEC [NEC], UPD9903GT Datasheet - Page 3

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

BLOCK DIAGRAM
ACOM
ACOM
DC
DC
ASCN
AGDT
BCUT
DC
DC
DC
ALM
A
BB
RC
RC
RC
OUT1
OUT2
PD
A
OUT
OUT
IN1
IN2
IN3
IN
IN
IN
1
2
3
Reference
voltage
COMP.
Feed control
Controller
A/D
D/A
COMP.
H
+
Z
H
+
Ring-Trip
B
COMP.
Channel
filter
Channel
filter
GDT
SUS
SCN
Waveform shaping
guard processing
Timing
Linear to
A or m
A or
linear
to
PD9903
+
BSY
SUS
HW
HW
TYPE
FS
DCLK
3
X
R