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參數資料
| 型號： | U3762MB-MFN |
| 英文描述： | DM6467T Digital Video Evaluation Module |
| 中文描述： | 通用電話芯片-所有的功能集成 |
| 文件頁數： | 8/23頁 |
| 文件大小： | 248K |
| 代理商： | U3762MB-MFN |
U3762MB
Rev. A1, 15-Sep-98
Preliminary Information
8 (23)
Configuration
Function
Symbol
Pin
38
MODE
Pulling MODE pin to:
C3
tone mode with 87 ms burst time
and 140 ms pause
C4
tone mode with 87 ms DTMF burst
and 87 ms pause
R1
pulse mode with 20 pps,
Make/Break = 40/60
R2
pulse mode with 20 pps,
Make/Break = 33/66
R3
pulse mode with 10 pps,
Make/Break = 40/60
R4
pulse mode with 10 pps,
Make/Break = 33/66
C1
pulse mode with 10 pps,
Make/Break = 33/66 and temp. DTMF
with 87 ms DTMF burst, 140 ms pause
MODE pin pulled to R4: with temporary
DTMF, 87 ms DTMF burst and 87 ms pause
VDD
VDD
MODE
ê
ê
PD
39
DP
Pulse dialing output. Flash key will cause DP
to be active in either DTMF mode or pulse
mode. In On-hook state is DP = VDD.
DP
VDD
ê
ê
PD
40
Mask
Short mute during pulse dialing, active high
MASK
VDD
PD
ê
41
R1
Keyboard input
R1
VDD
ê
42
R2
ê
PD
43
R3
VDD
R2–R4
ê
44
R4
ê
PD
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