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參數資料
| 型號： | W91633 |
| 廠商： | WINBOND ELECTRONICS CORP |
| 元件分類： | 無繩電話/電話 |
| 英文描述： | 10-MEMORY TONE/PULSE DIALER WITH REDIAL FUNCTION |
| 中文描述： | TELEPHONE DIALER CKT, PDIP18 |
| 封裝： | DIP-18 |
| 文件頁數： | 3/14頁 |
| 文件大小： | 181K |
| 代理商： | W91633 |
W91630 SERIES
Publication Release Date: June 1996
- 3 -
Revision A3
Pin Description, continued
SYMBOL
PIN NO.
I/O
FUNCTION
HKS
10
I
Hook switch input. Conventional CMOS input with an internal
protection diode and a pull-high resistor to V
DD
.
HKS = V
DD
: On-hook state. Chip in sleep mode, no operation.
HKS = V
SS
: Off-hook state. Chip enabled for normal operation.
During dialing, this input ignores HKS = V
DD
for durations of less
than 150 mS (i.e., dialing is not terminated).
DP/C5
11
O
Open drain dialing pulse output (Figure 1).
Flash key causes DP/C5 to be active in both tone mode and pulse
mode.
DTMF
12
O
During pulse dialing, maintains low state at all times.
In tone mode, outputs a dual or single tone.
Detailed timing diagram for tone mode is shown in Figure 2(a, b).
OUTPUT FREQUENCY
Specified
697
Actual
699
Error %
+0.28
R2
R3
R4
C1
C2
C3
770
852
941
1209
1336
1477
766
848
948
1216
1332
1472
-0.52
-0.47
+0.74
+0.57
-0.30
-0.34
R1
V
DD
, V
SS
14, 6
I
Power input pins.
P MUTE
5
O
The P MUTE is a conventional CMOS inverter output. It is high
during pulse dialing sequence and flash break. Otherwise, it
remains low.
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