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参数资料
| 型号： | MH88625 |
| 厂商： | Mitel Networks Corporation |
| 英文描述： | DID(Direct Inward Dial)/OPS SLIC(用于直接拨入线卡的用户线接口电路) |
| 中文描述： | 没有（直接内部拨号）/项目用户接口（用于直接拨入线卡的用户线接口电路） |
| 文件页数： | 1/18页 |
| 文件大小： | 74K |
| 代理商： | MH88625 |
1
Features
Programmable gain, network balance and
impedance
Transformerless 2-4wire conversion
Constant current with constant voltage fallback
for long loop capability
Pin compatible with MH88632 and MH88628.
Unbalance detection (Tip, Ring ground sensing)
Auto ring trip
On-Hook transmission (ANI) capability
Compatible with requirements of CCITT, DOC/
FCC and CSA/ULs
Excellent power dissipation (SIL vertical
mounting)
12/16kHz meter pulse injection control
Solid State TIP/RING reversals
Applications
On/Off Premise PBX Line Cards
DID (Direct Inward Dial) Line Cards
Central Office Line Cards
Description
The Mitel MH88625 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 MH88625 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 line card can be
implemented with very few external components.
Figure 1 - Functional Block Diagram
SHK
NS
N1
N2
NATT
RRD
REVC Z900 Z600 Z1 Z2 GRX1 GRX0 RX GTX1 GTX0 TX
ESI ESE
UD
TF2
TF1
TIP
RF2
RF1
RING
LCA
VDD
RNGC
RGND
VRLY
VEE
AGND
Matched
Feed
Resistors
Unbalance
Detection
Ring
Relay
Driver
Driver
Circuitry
and
Speech
Circuit
Tip/Ring
Reversal
External
Signal
Input
Loop
Current
Set
Switch-Hook
Threshold
Switch-Hook
Detect
Impedance
Network
Ring
Filter
2-4 Wire
Conversion
Gain Adjust
VBAT LGND
Ordering Information
MH88625
40 Pin SIL Package
0
°
C to 70
°
C
MH88625
DID/OPS SLIC
DS5143
ISSUE 7
August 1999
Preliminary Information
相关PDF资料 |
PDF描述 |
|---|---|
| MH88630 | Central Office Interface (LS/GS) Preliminary Information |
| MH88632 | Central Office Interface Circuit Preliminary Information |
| MH89101 | Passive Line Termination Circuit(无源线终端电路) |
| MH89625C-5 | OPS/DID PCM SLIC Preliminary Information |
| MH89625C-6 | OPS/DID PCM SLIC Preliminary Information |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MH88628 | 制造商:MITEL 制造商全称:Mitel Networks Corporation 功能描述:Central Office SLIC Preliminary Information |
| MH88630 | 制造商:MITEL 制造商全称:Mitel Networks Corporation 功能描述:Central Office Interface (LS/GS) Preliminary Information |
| MH88631 | 制造商:MITEL 制造商全称:Mitel Networks Corporation 功能描述:Central Office Interface (LS/GS) Preliminary Information |
| MH88631-1 | 制造商:MITEL 制造商全称:Mitel Networks Corporation 功能描述:Central Office Interface (LS/GS) Preliminary Information |
| MH88631-2 | 制造商:MITEL 制造商全称:Mitel Networks Corporation 功能描述:Central Office Interface (LS/GS) Preliminary Information |
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