W9145 Просмотр технического описания (PDF) - Winbond
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W9145 Datasheet PDF : 18 Pages
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W9145 SERIES
DC Characteristics, continued
PARAMETER
Pre-Emphasis
DTMF Distortion
HFO Drive/Sink
Current
Tone Output External
Load Impedance
Tone Output DC Level
Tone Output Sink
Current
Pulse Output
Drive/Sink Current
T/P MUTE Output
Drive/Sink Current
Key Tone Output
Drive/Sink Current
X MUTE Drive/Sink
Current
Input Voltage Low
SYM.
THD
IHFH
IHFL
RL
VDC
ITL
IPH
IPL
IMH
IML
IKH
IKL
ILH
IIL
VIL
CONDITIONS
Column Group/Row Group
VDD = 2.0−5.5V
RL = 5 KΩ
VHFH = 2.0V
VHFL = 0.5V
THD < -23 dB
VDD = 2.0−5.5V
VTO = 0.5V
VPO = 2.0V
VPO = 0.5V
VMO = 2.0V
VMO = 0.5V
VKO = 2.0V
VKL = 0.5V
VLO = 2.0V
VLO = 0.5V
Input Voltage High
VIH
Keypad Input
Drive/Sink Current
Control Pin Input
IKD VI = 0V
IKS VI = 2.5V
IIN HKS , MODE, TEST , B/M
MIN.
1
TYP.
2
MAX.
3
UNIT
dB
-
-30
-23
dB
0.5
-
-
mA
0.5
-
-
mA
5
-
-
KΩ
1.0
-
3.0
V
0.2
-
-
mA
-0.2
-
0.2
-
-0.2
-
-
mA
-
mA
-
mA
2
-
-
mA
-0.5
-
-
mA
0.5
-
-
mA
-0.2
-
-
mA
0.2
-
-
mA
GND
-
0.3
V
VDD
0.7
-
VDD
V
VDD
10
30
80
µA
200
400
-
µA
-
-
±25
µA
AC CHARACTERISTICS
PARAMETER
SYM.
Key-in Debounce
Key-release Debounce
Key tone Delay
TKID
TKRD
TKD
CONDITIONS
MIN.
-
-
-
TYP.
20
20
20
MAX.
-
-
-
UNIT
mS
mS
mS
- 10 -
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