參數(shù)資料
型號(hào): UPD9903
廠商: NEC Corp.
元件分類: Codec
英文描述: UPD9903 ANALOG SUBSCRIBER LINE LSI DIGITAL CODEC
中文描述: UPD9903模擬用戶線數(shù)字編解碼器大規(guī)模集成電路
文件頁(yè)數(shù): 3/28頁(yè)
文件大?。?/td> 135K
代理商: UPD9903
μ
PD9903
3
RC
1
RC
2
RC
3
DC
IN1
ASCN
AGDT
DC
IN2
DC
IN3
A
IN
DC
OUT1
DC
OUT2
A
OUT
ACOM
IN
ACOM
OUT
BB
IN
BCUT
ALM
PD
BSY
SUS
HW
X
HW
R
TYPE
FS
DCLK
D/A
Reference
voltage
COMP.
COMP.
COMP.
SUS
GDT
Waveform shaping
guard processing
SCN
A/D
Feed control
H
Z
H
B
Channel
filter
Linear to
A or
m
A or to
linear
Controller
Ring-Trip
Timing
R
I
R
I
E
E
S
A
D
A
D
D
D
R
A
+
+
Channel
filter
+
BLOCK DIAGRAM
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