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參數(shù)資料
| 型號： | MH88628 |
| 廠商： | Mitel Networks Corporation |
| 英文描述： | Central Office SLIC(用于中央辦公線卡的用戶線接口電路) |
| 中文描述： | 中央辦公室用戶接口（用于中央辦公線卡的用戶線接口電路） |
| 文件頁數(shù)： | 1/17頁 |
| 文件大?。?/td> | 91K |
| 代理商： | MH88628 |
2-201
Features
Programmable gain, network balance and
impedance
Transformerless 2-4 wire conversion
Constant current with constant voltage fallback
for long loop capability
Pin compatible with MH88632, MH88620 and
MH88628
Unbalanced detection (Tip, Ring ground
sensing)
Auto ring trip with zero crossing
On-Hook transmission (ANI) capability
Compatible with requirements of CCITT,
DOC/FCC and CSA/UL
Excellent power dissipation (SIL vertical
mounting)
12/16kHz meter pulse injection control
Solid State TIP/RING reversals
Ringing amplifier
Applications
On/Off Premise PBX Line Cards
DID (Direct Inward Dial) Line Cards
Central Office Line Cards
Description
The Mitel MH88628 SLIC provides all of the
functions required to interface 2-wire off premise
subscriber loops to a serial TDM, PCM, switching
network of a modern PBX. The MH88628 is
manufactured using thick-film hybrid technology
which offers high voltage capability, reliability and
high density resulting in significant printed circuit
board area savings. A complete C.O. line card can
be implemented with very few external components.
SHK
NS
N1
N2
NATT
UD
TF2
TF1
TIP
RF2
RF1
RING
LCA
VDD
VRLY
RNGD
RD
VEE
AGND
Unbalanced
Detection
Decoder
Circuit
Driver
Circuitry
and
Speech
Circuit
Ringing
Amplifier
External
Signal
Input
Loop
Current
Set
Switch-hook
Threshold Set
Switch-hook
Detect
Impedance
Network
Ring
Filter
2-4 Wire
Conversion
Gain Adjust
VBat
LGND
SEL1 SEL2
ACRI DCRI
ESI
ESE
Z600 Z1
Z900
Z2
GRX1 GRX0 RX GTX1 GTX0 TX
Matched
Feed
Resistors
ISSUE 5
April 1995
Ordering Information
MH88628
40 Pin SIL Package
0
°
C to 70
°
C
Figure 1 - Functional Block Diagram
MH88628
Central Office SLIC
Preliminary Information
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MH88631-2 | Central Office Interface (LS/GS) Preliminary Information |
| MH88631 | Central Office Interface (LS/GS) Preliminary Information |
| MH88631-1 | Central Office Interface (LS/GS) Preliminary Information |
| MH88632B | Central Office Interface Circuit(用于中央辦公電話線的接口電路（在音頻轉(zhuǎn)換設(shè)備和用戶線之間提供一個模擬和信號連接）) |
| MH88632B | Central Office Interface Circuit Preliminary Information |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MH88630 | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:Central Office Interface (LS/GS) Preliminary Information |
| MH88631 | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:Central Office Interface (LS/GS) Preliminary Information |
| MH88631-1 | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:Central Office Interface (LS/GS) Preliminary Information |
| MH88631-2 | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:Central Office Interface (LS/GS) Preliminary Information |
| MH88632 | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:Central Office Interface Circuit Preliminary Information |
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