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參數資料
| 型號： | AS2540 |
| 廠商： | ams |
| 文件頁數： | 2/19頁 |
| 文件大小： | 0K |
| 描述： | IC TELEPHONE CMOS MULTIFU 28SOIC |
| 標準包裝： | 27 |
| 系列： | * |
Data Sheet AS2540
austriamicrosystems
Revision 3.1
Page 9 of 18
The MF output levels are set to -4/-6dB which should allow
efficient backup dialling under all line conditions. The
TONE/PAUSE ratio is 90ms/90ms. The preemphasis
between low group and high group frequencies is t.m.
2.6dB.
FLASH timing
CPU can control the DPn pin and the MASK-mode of
AS2540 via serial interface.
Tone Ringer
Ring frequency discrimination
The ring frequency discrimination assures that only signals
with a frequency between 13Hz and 70Hz are regarded as
valid ring signals.
When a valid ring signal is present for 102ms continuously,
the ring melody generator is activated and remains active
as long as a valid ring signal is present.
Once the ring melody generator has started, the ring signal
is continuously monitored and the ring melody generator is
instantly turned off according to the momentary presence
of a valid or invalid ring signal until next off-hook.
Toner ringer melody
The 3 basic melody frequencies are:
-
F1=880Hz
-
F2=1067Hz
-
F3=1333Hz
The repetition rate is set to 4 which means that the
sequence of F1, F2, F3, F1, F2, F3 is repeated 4 times
within a second.
Keyboard connections
R1
1
PIN
C1
2
3
R2
4
5
6
7
8
9
*
0
#
PIN
C2
PIN
C3
PIN
R1
PIN
R2
PIN
MODE
c1
C2
C3
Double contacts under keys 0-9*#: One contact is
connected to AS2540, the other one to CPU.
ams
AG
Technical
content
still
valid
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相關代理商/技術參數 |
參數描述 |
|---|---|
| AS2540_04 | 制造商:AMSCO 制造商全稱:austriamicrosystems AG 功能描述:Remote Controlled Single-Chip-Telephone |
| AS2540-7R | 功能描述:EURO-CASSETTE 100W 2X 15V RoHS:否 類別:電源 - 外部/內部（非板載） >> DC DC Converters 系列:* 標準包裝:1 系列:Quint 類型:隔離 輸入電壓:24V 輸出:24V 輸出數:1 輸出 - 1 @ 電流（最大）:24 VDC @ 50A 輸出 - 2 @ 電流（最大）:- 輸出 - 3 @ 電流（最大）:- 輸出 - 4 @ 電流（最大）:- 功率（瓦特）:1200W 安裝類型:底座安裝 工作溫度:0°C ~ 40°C 效率:- 封裝/外殼:模塊 尺寸/尺寸:4.33" L x 9.09" W x 6.14" H（110mm x 231mm x 156mm） 包裝:散裝 電源（瓦特）- 最大:1200W 批準:- 其它名稱:277-69722866365-NDQUINT-BAT/24DC/12AH |
| AS2540-9R | 制造商:Power-One 功能描述:DCDC - Bulk |
| AS2540Q | 制造商:AMSCO 制造商全稱:austriamicrosystems AG 功能描述:Remote Controlled Single-Chip-Telephone |
| AS2540T | 制造商:AMS 功能描述:REMOTE CNTRLD SNGL-CHIP TELE |
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