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參數(shù)資料
| 型號(hào)： | AS2525 |
| 廠商： | AUSTRIAMICROSYSTEMS AG |
| 元件分類： | 無繩電話/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 |
| 文件頁數(shù)： | 2/26頁 |
| 文件大?。?/td> | 264K |
| 代理商： | AS2525 |
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Preliminary
AS2525
Rev. 1.3
Page 2
May 1999
Pin Description
Pin #
Symbol
Type
Description
1
CS2
DO
C
hip
S
elect
2
Chip select signal for external LCD driver circuit or 2 mA LED
If signal is not activated, a pull down resistor ( 100 k
) is inserted.
2
DPn
DO
D
ial
P
ulse Output
Digital output which holds the line during off-hook operation or pulls low during
break periods of pulse dialling and flash.
3
HF
DI
H
ands
F
ree Switch Input
This is an Schmitt-trigger input that is pulled high to enable handsfree
operation.
4
HS
DI
H
and
S
et Switch Input
This is an Schmitt-trigger input that is pulled high by the hook switch to enable
handset or headset operation.
5
FT1
AI
Analogue input pin for connecting a capacitor for offset cancellation.
6
FT2
AI
Analogue input pin for connecting a capacitor for offset cancellation.
7
M4
AI
M
icrophone Input
4
Differential input for the handsfree microphone (electret).
8
M2
AI
M
icrophone Input
2
Differential input for the handset microphone (electret).
9
M3
AI
M
icrophone Input
3
Differential input for the handsfree microphone (electret).
10
M1
AI
M
icrophone Input
1
Differential input for the handset microphone (electret).
11
STB
AI
S
ide
T
one
B
alance Input
Analogue input for side tone cancellation network.
12
CS
AO
C
urrent
S
hunt Control Output
N-channel open drain output to control the external high power shunt transistor
for synthesising ac- and dc-impedance, modulation of line voltage and shorting
the line during make periods of pulse dialling.
13
V
SS
Supply
V
oltage
S
ource
S
ource
Negative Power Supply.
14
LI
AI
L
ine
I
nput
Analogue input used for power extraction and line current sensing.
15
RI
AI
R
eceive
I
nput
Analogue input for ac-separated receive signal.
16
SS
AO
S
upply
S
ource
Control Output
N-channel open drain output to control the external high power source
transistor for supplying (Vpp) the loudspeaker amplifier in off-hook
loudspeaking/handsfree mode.
17
LS
AI
L
ine Current
S
ense Input
Analogue input for sensing the line current.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 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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