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參數(shù)資料
型號: W742S819
廠商: WINBOND ELECTRONICS CORP
元件分類: 微控制器/微處理器
英文描述: 4-BIT TELEPHONE CONTROLLER
中文描述: 4-BIT, OTPROM, MICROCONTROLLER, PQFP80
封裝: QFP-80
文件頁數(shù): 8/11頁
文件大小: 134K
代理商: W742S819
W742S819
- 8 -
DC CHARACTERISTICS: VDD-VSS=3.0V, continued
PARAMETER
SYM.
CONDITIONS
MIN.
TYP.
MAX.
UNIT
DTMF Distortion
T
HD
R
L
=5K
Ω
, V
DD
=2.5 to
3.8V
-
-30
-23
dB
DTMF Output Voltage
V
TO
Low group, R
L
=5K
Ω
130
150
170
mVrms
Pre-emphasis
Col/Row
1
2
3
dB
DTMF Output Sink Current
I
TL
V
TO
=0.5V
0.2
-
-
mA
Pull-up Resistor
R
C
Port RC
100
350
1000
K
Ω
Pull-up Resistor
R
A
Port RA
100
350
1000
K
Ω
Pull-up Resistor
R
B
Port RB
100
350
1000
K
Ω
Input Leakage
Current
I
IN
Vss
V
IN
V
DD
-
-
1
μ
A
Input Resistance
R
IN
V
OS
10
-
-
M
Ω
Input Offset Voltage
-
-
25
mV
OP-
AMPs
Power Supply
Rejection Ratio
Maximum
Capacitive Load
PSRR
1KHz 0.1V
PP
ripple on
V
DD
40
-
-
dB
C
L
-
-
30
pF
OP1
Minimum Resistive
Load
R
L
500
-
-
K
Ω
Maximum
Capacitive Load
C
L
-
-
20
pF
OP2
OP3
Minimum Resistive
Load
R
L
1000
-
-
K
Ω
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