參數(shù)資料
型號(hào)： UPD9903GT
廠商： NEC Corp.
元件分類(lèi)： Codec
英文描述： UPD9903 ANALOG SUBSCRIBER LINE LSI DIGITAL CODEC
中文描述： UPD9903模擬用戶(hù)線數(shù)字編解碼器大規(guī)模集成電路
文件頁(yè)數(shù)： 10/28頁(yè)
文件大?。?/td> 135K
代理商： UPD9903GT
μ
PD9903
10
DC Characteristics (T
A
= 0 to 70
°
C, V
DD
= 5 V
±
0.25 V, V
DG
= V
AG
= 0 V, f
DCLK
= 2048 kHz, all output pins are
unloaded)
(1) Current consumption
Parameter
Symbol
Conditions
MIN.
TYP.
MAX.
Units
Circuit current
I
DD
During normal mode
15
21
mA
Power-down circuit current
I
DDPD
During power-down mode
46
6
(2) Digital interface
Parameter
Symbol
Conditions
MIN.
TYP.
MAX.
Units
Digital input current
I
ID
0
≤
V
DIN
≤
V
DD
for FS, DCLK, HW
R
,
RT
IN0
, RT
IN1
, and RST pins
–10
+10
μ
A
Digital input pull-up current
I
IL
V
DIN
= 0 V for AUX/MODE pin
–50
–7
–0.5
3-state leakage current
I
L
0
≤
V
DIN
≤
V
DD
for HW
X
pin
–10
+10
Low level output voltage
V
OL1
I
OL
= 3.4 mA for HW
X
pin
0.4
V
V
OL2
I
OL
= 0.2 mA for RC
1
, RC
2
, RC
3
, BCUT,
ALM, PD, EXS, and EXD pins
0.4
V
OL3
I
OL
= 5 mA for BSY and SUS pins
1.1
High level output voltage
V
OH1
I
OH
= –0.6 mA for HW
X
and TYPE pins
2.4
V
OH2
I
OH
= –2.0 mA for RC
1
, RC
2
, RC
3
, BCUT,
ALM, PD, EXS, and EXD pins
2.4
V
OH3
I
OH
= 0 mA for BSY and SUS pins
V
DD
– 0.5
Output capacitance of digital
output pin
C
OD
f = 1 MHz,
unmeasured pins returned to 0 V
15
pF
Input capacitance of digital
input pin
C
ID
f = 1 MHz,
unmeasured pins returned to 0 V
10
(3) A
IN
pin
Parameter
Symbol
Conditions
MIN.
TYP.
MAX.
Units
Input bias current
I
B
Input voltage:
–10
+10
μ
A
Input resistance
R
IN
1
M
Input capacitance
C
IN
10
pF
(4) A
OUT
pin
Parameter
Symbol
Conditions
MIN.
TYP.
MAX.
Units
Output offset voltage
V
OA
HW
R
PCM data: zero PCM code,
referenced to V
ACOM
–100
+100
mV
Output resistance
R
OUT
I/O current: –100 to +100
μ
A
50
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