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參數(shù)資料
| 型號： | AS2525B |
| 廠商： | AUSTRIAMICROSYSTEMS AG |
| 元件分類： | 無繩電話/電話 |
| 英文描述： | Single Chip Speaker Phone |
| 文件頁數(shù)： | 17/27頁 |
| 文件大?。?/td> | 459K |
| 代理商： | AS2525B |
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Datasheet AS2525
austria
micro
systems
Revision 2.1
Page 17 of 27
Table 28: Pacifier tone selection
[PG] + [0] + (Password) + [#] + [9] + (digit) + [PG]
Digit
[0]
[1]
Pacifier Tone (Key-in Tone)
Disabled
Enabled
Table 29: Pacifier tones
Key Entry
Frequency
Duration
Acknowledge
Reject/Terminate
1333 Hz
1333 Hz
40 ms
4 x 40 ms
An invalid key entry will be indicated by a rejection tone of
4 times 40 ms.
By MF dialing the DTMF tones are provided to the earpiece
as comfort tone. The level of the comfort is selected
through the set-up programming.
Table 30: DTMF comfort tone level setting
[PG] + [0] + (Password) + [0] + (y + x) + [PG]
Key
(y + x)
[9] + [0]
[9] + [1]
[9] + [2]
[9] + [3]
Level (dBr)
Earpiece
-36
-30
-24
-18
Key
(y + x)
[0] + [0]
[0] + [1]
[0] + [2]
[0] + [3]
Level (dBr)
Loudspeaker
-15
-9
-3
3
Serial Bus
The AS2525 incorporates a microwire compatible serial
bus (DO, DI, and CLK) with two chip select outputs (CS1
and CS2). The serial bus is used to:
-
sending data to the LCD driver (AS2591) when a key is
pressed or a number is dialed out
-
reading and writing to the external EEPROM under
following conditions:
Table 31: EEPROM read/write timings
ACTION
DURATION
After off-hook (debounced)
After on-hook (debounced)
After first rising edge at FCI
After PG is terminated
After pressing [V+]/[V-]
50 ms
200 ms
10 ms
12…600 ms
20 ms
See also AS2591 data sheet for further information.
LCD Control
The AS2525 is designed to work together with the LCD
driver AS2591 (see also AS2591 data sheet).
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AS2525 | Single-Chip Handsfree Phone CMOS Integrated Circuit |
| AS2534ET | Multi-Standard CMOS Single Chip Telephone IC with Dual Soft Clipping |
| AS2535 | Multi-Standard CMOS Single Chip Telephone IC with Dual Soft Clipping |
| AS2535P | Multi-Standard CMOS Single Chip Telephone IC with Dual Soft Clipping |
| AS2535T | Multi-Standard CMOS Single Chip Telephone IC with Dual Soft Clipping |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AS2525B-T | 功能描述:IC HANDSFREE TELEPH CMOS 44-TQFP RoHS:是 類別:集成電路 (IC) >> 接口 - 濾波器 - 有源 系列:* 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1,000 系列:- 濾波器類型:連續(xù)時間，帶通低通 頻率 - 截止或中心:150kHz 濾波器數(shù):4 濾波器階數(shù):8th 電源電壓:4.74 V ~ 11 V，±2.37 V ~ 5.5 V 安裝類型:表面貼裝 封裝/外殼:28-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:28-SOIC W 包裝:帶卷 (TR) |
| AS2525-DB | 制造商:AMS 功能描述:BOARD DEMO FOR AS2525 制造商:ams 功能描述:AS2525 Demo Board |
| AS2525F | 制造商:AMSCO 制造商全稱:austriamicrosystems AG 功能描述:Single-Chip Handsfree Phone CMOS Integrated Circuit |
| AS2525Q | 制造商:AMSCO 制造商全稱:austriamicrosystems AG 功能描述:Single-Chip Handsfree Phone CMOS Integrated Circuit |
| AS252R3FLF | 制造商:TT Electronics / IRC 功能描述:AS252R3FLF |
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