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參數(shù)資料
| 型號(hào)： | MH88422 |
| 廠商： | Mitel Networks Corporation |
| 英文描述： | Line Interface Circuit Preliminary Information |
| 中文描述： | 線路接口電路的初步信息 |
| 文件頁數(shù)： | 1/14頁 |
| 文件大小： | 73K |
| 代理商： | MH88422 |
2-13
Features
FAX and Modem interface (V29)
Variants available with different line
impedances
Provides reinforced barrier to international PTT
requirements
Transformerless 2-4 Wire conversion.
Integral Loop Switch
Dial Pulse and DTMF operation
Line state detection outputs
Loop current/ringing outputs
Single +5V operation, low on-hook power
(5mW)
Full duplex data transmission
Applications
Interface to Central Office or PABX line for:
Modem
FAX
Telemetry
Description
The Mitel MH88422 Data Access Arrangement
(D.A.A.) provides a complete interface between data
transmission equipment and a telephone line. All
functions are integrated into a single thick film hybrid
module which provides high voltage isolation, very
high reliability and optimum circuit design needing a
minimum of external components.
A number of variants are available to meet particular
country impedance requirements. The D.A.A. has
been designed to meet regulatory approvals
requirements in these countries.
Figure 1 - Functional Block Diagram
Opto-
Isolation
Logic Input
Buffer
Opto-
Isolation
Opto-
Isolation
Opto-
Isolation
Audio
Buffer
Audio
Buffer
Buffer
Transhybrid
loss
cancellation
circuit
Isolation Barrier
VDD
AGND
LC
VR
VX
RVLC
TIP
RING
User Connections
Network Connections
Input Buffer
&
Line Termination
TXIN
TF
RLS
Ring & Loop
DS5067
ISSUE 10
November 1998
Ordering Informations
MH88422-1/2/3 26 Pin DIL Package
MH88422BD-1 26 Pin DIL Package
0
°
C to 70
°
C
MH88422
Data Access Arrangement
Preliminary Information
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MH88422-1 | Data Access Arrangement Preliminary Information |
| MH88422-2 | Data Access Arrangement Preliminary Information |
| MH88422-3 | Data Access Arrangement Preliminary Information |
| MH88422 | Data Access Arrangement(數(shù)據(jù)存取陣列（在數(shù)據(jù)傳送設(shè)備和電話線之間提供一個(gè)完全接口）) |
| MH88435-P | Data Access Arrangement(數(shù)據(jù)存取陣列（在音頻或數(shù)據(jù)傳送設(shè)備和電話線之間提供一個(gè)完全接口）) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MH88422-1 | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:Line Interface Circuit Preliminary Information |
| MH88422-2 | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:Line Interface Circuit Preliminary Information |
| MH88422-3 | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:Line Interface Circuit Preliminary Information |
| MH88422BD-1 | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:Data Access Arrangement Preliminary Information |
| MH88434-P | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
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