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參數(shù)資料
| 型號(hào)： | AS2525 |
| 廠商： | AUSTRIAMICROSYSTEMS AG |
| 元件分類： | 無(wú)繩電話/電話 |
| 英文描述： | Single-Chip Handsfree Phone CMOS Integrated Circuit |
| 中文描述： | TELEPHONE MULTIFUNCTION CKT, PQFP44 |
| 封裝： | TQFP-44 |
| 文件頁(yè)數(shù)： | 17/26頁(yè) |
| 文件大?。?/td> | 264K |
| 代理商： | AS2525 |
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Preliminary
AS2525
Rev. 1.3
Page 17
May 1999
Table 28: Pacifier tone selection
[PG] + [0] + (Password) + [#] + [9] + (digit) + [PG]
Digit
Pacifier Tone (Key-in Tone)
[0]
Disabled
[1]
Enabled
Table 29: Pacifier tones
Key Entry
Frequency
Duration
Acknowledge
1333 Hz
40 ms
Reject/Terminate
1333 Hz
4 x 40 ms
An invalid key entry will be indicated by a rejection
tone of 4 times 40 ms.
By MF dialling 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)
Level (dBr)
Earpiece
Key
(y + x)
Level (dBr)
Loudspeaker
[9] + [0]
[9] + [1]
[9] + [2]
[9] + [3]
-36
-30
-24
-18
[0] + [0]
[0] + [1]
[0] + [2]
[0] + [3]
-15
-9
-3
3
Serial Bus
The AS2525 incorporates a 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 dialled out
reading and writing to the external EEPROM
under following conditions:
Table 31: EEPROM read/write timings
ACTION
DURATION
After off-hook (debounced)
50 ms
After on-hook (debounced)
200 ms
After first rising edge at FCI
10 ms
After PG is terminated
12…600 ms
After pressing [V+]/[V-]
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).
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| 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 |
| AS2536 | 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 |
|---|---|
| AS2525 DB | 功能描述:AS2525 - Telecom Evaluation Board 制造商:ams 系列:- 零件狀態(tài):停產(chǎn) 主要用途:電信 嵌入式:- 使用的 IC/零件:AS2525 主要屬性:- 輔助屬性:- 所含物品:板 標(biāo)準(zhǔn)包裝:1 |
| AS2525_1 | 制造商:AMSCO 制造商全稱:austriamicrosystems AG 功能描述:Single-Chip Handsfree Phone CMOS Integrated Circuit |
| AS2525B | 功能描述:電信線路管理 IC RoHS:否 制造商:STMicroelectronics 產(chǎn)品:PHY 接口類型:UART 電源電壓-最大:18 V 電源電壓-最小:8 V 電源電流:30 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VFQFPN-48 封裝:Tray |
| 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(shí)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 |
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