English
Language : 

UPD9903 Datasheet, PDF (8/28 Pages) NEC – UPD9903 ANALOG SUBSCRIBER LINE LSI DIGITAL CODEC
µPD9903
3. ELECTRICAL SPECIFICATIONS
3.1 Discrete unit Ratings
Absolute maximum ratings (TA = +25 °C)
Parameter
Power supply voltage
Analog input voltage
Digital input voltage
Applied voltage to analog
output pin
Applied voltage to digital
output pin
Power dissipation
Ambient operating temperature
Storage temperature
Symbol
VDD
VAIN
VDIN
VAOUT
VDOUT
PT
TA
Tstg
Conditions
AVDD, DVDD1, DVDD2
AIN, ASCN, AGDT, ACOMIN, BBIN,
DCIN1, DCIN2, and DCIN3 pins
HWR, DCLK, FS, RST, AUX/MODE,
RTIN0, and RTIN1 pins
AOUT, DCOUT1, DCOUT2, and ACOMOUT
pins
HWX, BSY, SUS, RC1, RC2, RC3, EXS,
EXD, BCUT, ALM, PD, and TYPE pins
Rating
–0.3 to +7.0
–0.3 to VDD + 0.3
–0.3 to VDD + 0.3
–0.3 to VDD + 0.3
–0.3 to VDD + 0.3
500
0 to +70
–65 to +150
Units
V
mW
˚C
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 (TA = 0 to 70 °C, VDD = 5 V ± 5 %, GND = 0 V)
(1) DC conditions
Parameter
Ambient operating temperature
Power supply voltage
Analog input voltage
Analog input driving
resistance
Analog output load resistance
Analog output load capacitance
Low level input voltage
High level input voltage
Symbol
TA
VDD
VAI
RLA1
Conditions
ASCN, and AGDT pins
ASCN, and AGDT pins
MIN.
0
4.75
0
TYP.
25
5.0
MAX.
70
5.25
VDD
20
Units
˚C
V
kΩ
RLOAD
CLOAD
VIL1
VIL2
VIH1
VIH2
AOUT pin
100
FS, DCLK, HWR, and AUX/MODE pins
RST, RTIN0, and RTIN1 pins
FS, DCLK, HWR, and AUX/MODE pins
RST, RTIN0, and RTIN1 pins
0
0
2.0
0.8 × VDD
100
pF
0.8
V
0.2 × VDD
VDD
VDD
8