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參數資料
| 型號： | W91572DNF |
| 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 LCD Display And Autoredial RTC Functions(具有23個數碼存儲器、自動撥號實時時鐘和液晶顯示功能的音頻/脈沖撥號器) |
| 中文描述： | TELEPHONE DIALER CKT, PQFP80 |
| 封裝： | PLASTIC, QFP-80 |
| 文件頁數： | 4/45頁 |
| 文件大小： | 709K |
| 代理商： | W91572DNF |
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W91570DN SERIES
- 4 -
Pin Description, continued
SYMBOL
PIN NO.
I/O
FUNCTION
HFI
, HFO
37, 17
I,
O
Handfree control pins. A low pulse on the
HFI
input pin toggles
the handfree control state.
Status of the handfree control is listed in the following table:
CURRENT STATE
Hook SW.
Input
HFO
High
Dialing
Yes
On Hook
High
Low
No
Off Hook
High
Low
Yes
On Hook
Off Hook
Low
Yes
Off Hook
Low
On Hook
Low
No
Off Hook
High
On Hook
High
Yes
Low
HFO
NEXT STATE
HFI
HFI
HFI
The
HFI
pin is pulled to V
DD
by internal resistor.
Detailed timing diagrams are shown in Figure 4(a), 4(b).
DP
/
C10
18
O
This pin is a CMOS N-channel open drain output. The flash key
will cause
DP
/
C10
to go active in either pulse mode or tone
mode. In lock mode, the
DP
/
C10
keeps low for 300 mS during
off-hook delay time (If first off-hook occured after power-on
reset, the
DP
/
C10
will keep high for 100ms then go low 200
mS. It will be recovered when first key-in was accepted). The
timing diagram is shown as Figure 1(a), 1(b), 1(c), 1(d).
DTMF
12
O
In pulse mode, this pin remains in low state at all times.
In tone mode, it will output a dual or single tone. Detailed timing
diagram for tone mode is shown in Figure 2(a), 2(b), 2(c), 2(d).
Specified
Actual
Error %
OUTPUT FREQUENCY
R1
R2
R3
R4
C1
C2
C3
697
770
852
941
1209
1336
1477
699
766
848
948
1216
1332
1472
+0.28
-0.52
-0.47
+0.74
+0.57
-0.30
-0.34
MODE
19
I
Pulling the mode pin to V
SS
places the dialer in tone mode.
Pulling the mode pin to V
DD
places the dialer in pulse mode
and the dialing rate is 10 ppS.
Floating the mode pin places the dialer in pulse mode and the
dialing rate is 20 ppS.
相關PDF資料 |
PDF描述 |
|---|---|
| W91574DNF | 23-MEMORY TONE/PULSE DIALER WITH AUTOREDIAL REC AND LCD DISPLAY FUNCTIONS |
| W91576DNF | 23-Memory Tone/Pulse Dialer With LCD Display And Autoredial RTC Functions(具有23個數碼存儲器、自動撥號實時時鐘和液晶顯示功能的音頻/脈沖撥號器) |
| W91580 | 24-Memory Tone/Pulse Switchable Dialer With Handfree And Hold Functions(具有24個數碼存儲器、免提和保持功能的音頻/脈沖可變換撥號器) |
| W91580A | 24-Memory Tone/Pulse Switchable Dialer With Handfree And Hold Functions(具有24個數碼存儲器、免提和保持功能的音頻/脈沖可變換撥號器) |
| W91580B | 24-Memory Tone/Pulse Switchable Dialer With Handfree And Hold Functions(具有24個數碼存儲器、免提和保持功能的音頻/脈沖可變換撥號器) |
相關代理商/技術參數 |
參數描述 |
|---|---|
| W91574DNF | 制造商:WINBOND 制造商全稱:Winbond 功能描述:23-MEMORY TONE/PULSE DIALER WITH AUTOREDIAL REC AND LCD DISPLAY FUNCTIONS |
| W91576DNF | 制造商:WINBOND 制造商全稱:Winbond 功能描述:23-MEMORY TONE/PULSE DIALER WITH AUTOREDIAL REC AND LCD DISPLAY FUNCTIONS |
| W91578DNF | 制造商:WINBOND 制造商全稱:Winbond 功能描述:23-MEMORY TONE/PULSE DIALER WITH AUTOREDIAL REC AND LCD DISPLAY FUNCTIONS |
| W91580 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:24-MEMORY TONE/PULSE SWITCHABLE DIALER WITH HANDFREE AND HOLD FUNCTIONS |
| W91580A | 制造商:WINBOND 制造商全稱:Winbond 功能描述:24-MEMORY TONE/PULSE SWITCHABLE DIALER WITH HANDFREE AND HOLD FUNCTIONS |
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