參數(shù)資料
型號: 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
文件頁數(shù): 8/28頁
文件大?。?/td> 135K
代理商: UPD9903
μ
PD9903
8
3. ELECTRICAL SPECIFICATIONS
3.1 Discrete unit Ratings
Absolute maximum ratings (T
A
= +25
°
C)
Parameter
Symbol
Conditions
Rating
Units
Power supply voltage
V
DD
AV
DD
, DV
DD1
, DV
DD2
–0.3 to +7.0
V
Analog input voltage
V
AIN
A
IN
, ASCN, AGDT, ACOM
IN
, BB
IN
,
DC
IN1
, DC
IN2
, and DC
IN3
pins
–0.3 to V
DD
+ 0.3
Digital input voltage
V
DIN
HW
R
, DCLK, FS, RST, AUX/MODE,
RT
IN0
, and RT
IN1
pins
–0.3 to V
DD
+ 0.3
Applied voltage to analog
output pin
V
AOUT
A
OUT
, DC
OUT1
, DC
OUT2
, and ACOM
OUT
pins
–0.3 to V
DD
+ 0.3
Applied voltage to digital
output pin
V
DOUT
HW
X
, BSY, SUS, RC
1
, RC
2
, RC
3
, EXS,
EXD, BCUT, ALM, PD, and TYPE pins
–0.3 to V
DD
+ 0.3
Power dissipation
P
T
500
mW
Ambient operating temperature
T
A
0 to +70
C
Storage temperature
T
stg
–65 to +150
Caution
If the absolute maximum rating for any of the above parameters is exceeded even momentarily,
it may adversely affect the quality of this product. In other words, these absolute maximum
ratings have been set to prevent physical damage to the product. Do not use the product in such
a way as to exceed any of these ratings.
Recommended operating conditions (T
A
= 0 to 70
°
C, V
DD
= 5 V
±
5 %, GND = 0 V)
(1) DC conditions
Parameter
Symbol
Conditions
MIN.
TYP.
MAX.
Units
Ambient operating temperature
T
A
0
25
70
C
Power supply voltage
V
DD
4.75
5.0
5.25
V
Analog input voltage
V
AI
ASCN, and AGDT pins
0
V
DD
Analog input driving
resistance
R
LA1
ASCN, and AGDT pins
20
k
Analog output load resistance
R
LOAD
A
OUT
pin
100
Analog output load capacitance
C
LOAD
100
pF
Low level input voltage
V
IL1
FS, DCLK, HW
R
, and AUX/MODE pins
0
0.8
V
V
IL2
RST, RT
IN0
, and RT
IN1
pins
0
0.2
×
V
DD
High level input voltage
V
IH1
FS, DCLK, HW
R
, and AUX/MODE pins
2.0
V
DD
V
IH2
RST, RT
IN0
, and RT
IN1
pins
0.8
×
V
DD
V
DD
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