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參數資料
| 型號： | W91810LN |
| 廠商： | WINBOND ELECTRONICS CORP |
| 元件分類： | 無繩電話/電話 |
| 英文描述： | 23-MEMORY TONE/PULSE DIALER WITH HANDFREE, LOCK AND HOLD FUNCTIONS |
| 中文描述： | TELEPHONE DIALER CKT, PDIP22 |
| 封裝： | PLASTIC, DIP-22 |
| 文件頁數： | 5/26頁 |
| 文件大小： | 238K |
| 代理商： | W91810LN |
W91810N SERIES
Publication Release Date: March 2000
- 5 -
Revision A5
Pin Description, continued
SYMBOL 22-PIN 24-PIN 28-PIN I/O
DTMF
14
FUNCTION
16
19
O
During pulse dialing, this pin remains in a low state
regardless of the keypad input. In tone mode, it will
output a dual or single tone.
A detailed timing diagram for tone mode is shown in
Figure 2(a, b).
R1
R2
R3
R4
C1
C2
C3
Specified
697
770
852
941
1209
1336
1477
699
766
848
948
1216
1332
1472
Actual
+0.28
-0.52
-0.47
+0.74
+0.57
-0.30
-0.34
Error %
OUTPUT FREQUENCY
V
DD
, V
SS
16, 8
18, 8
21, 9
I
Power input pins for the dialer chip. V
DD
is the power
and V
SS
is the ground.
Volume control output pins. These two pins can be
toggled by the volume control keys (Vup, Vdown).
These two pins output is a conventional CMOS N-
channel open drain output.
V1, V2
-
-
14, 15
O
HFI, HFO
-
12, 13 13, 16 I, O Handfree control pins.
A low pulse on the HFI input pin toggles the handfree
control state. The status of the handfree control state
is listed in the following table:
HOOK SW.
-
On Hook
Off Hook
On Hook
Off Hook
Off Hook
CURRENT STATE
NEXT STATE
HFO
Low
High
High
-
Low
High
INPUT
HFI
HFI
HFI
Off Hook
On Hook
On Hook
HFO
High
Low
Low
Low
Low
High
DIALING
Yes
No
Yes
Yes
No
Yes
The HFI pin is pulled to V
DD
by an internal resistor.
A detailed timing diagram is shown in Figure 3.
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| W91810N | 23-MEMORY TONE/PULSE DIALER WITH HANDFREE, LOCK AND HOLD FUNCTIONS |
| W91811AN | 23-MEMORY TONE/PULSE DIALER WITH HANDFREE, LOCK AND HOLD FUNCTIONS |
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相關代理商/技術參數 |
參數描述 |
|---|---|
| W91810N | 制造商:WINBOND 制造商全稱:Winbond 功能描述:23-MEMORY TONE/PULSE DIALER WITH HANDFREE, LOCK AND HOLD FUNCTIONS |
| W91811ALN | 制造商:WINBOND 制造商全稱:Winbond 功能描述:23-MEMORY TONE/PULSE DIALER WITH HANDFREE, LOCK AND HOLD FUNCTIONS |
| W91811AN | 制造商:WINBOND 制造商全稱:Winbond 功能描述:23-MEMORY TONE/PULSE DIALER WITH HANDFREE, LOCK AND HOLD FUNCTIONS |
| W91812AN | 制造商:WINBOND 制造商全稱:Winbond 功能描述:23-MEMORY TONE/PULSE DIALER WITH HANDFREE, LOCK AND HOLD FUNCTIONS |
| W91812N | 制造商:WINBOND 制造商全稱:Winbond 功能描述:23-MEMORY TONE/PULSE DIALER WITH HANDFREE, LOCK AND HOLD FUNCTIONS |
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