MH88400, MH88422, MH88422-2 Selling Leads, Datasheet
MFG:MTL Package Cooled:DIP D/C:96
MH88400, MH88422, MH88422-2 Datasheet download
Part Number: MH88400
MFG: MTL
Package Cooled: DIP
D/C: 96
MH88400, MH88422, MH88422-2
- Table of contents:
Info of MH88400
Info of MH88422
Info of MH88422-2
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About MH88400
PDF/DataSheet Download
Datasheet: MH88400
File Size: 123138 KB
Manufacturer: MITEL [Mitel Networks Corporation]
Download : Click here to Download
About MH88422
PDF/DataSheet Download
Datasheet: MH88422
File Size: 124852 KB
Manufacturer: MITEL [Mitel Networks Corporation]
Download : Click here to Download
About MH88422-2
PDF/DataSheet Download
Datasheet: MH88422-2
File Size: 75356 KB
Manufacturer: MITEL [Mitel Networks Corporation]
Download : Click here to Download
MH88400 General Description
The Mitel MH88400 Line Interface Circuit provides a complete audio and signalling link between audio
equipment and central office. The functions provided by the MH88400 include 2-4 Wire conversion, loop seizure, external monitor phone switch hook status and ringing voltage and loop current detection. The device is fabricated as a thick film hybrid which incorporates various technologies for optimum circuit design, high voltage isolation and very high reliability.
Variants are provided to meet German (-1) and UK (-3) and general 600 (-2) line impedance (see section on Line Impedances).
equipment and central office. The functions provided by the MH88400 include 2-4 Wire conversion, loop seizure, external monitor phone switch hook status and ringing voltage and loop current detection. The device is fabricated as a thick film hybrid which incorporates various technologies for optimum circuit design, high voltage isolation and very high reliability.
Variants are provided to meet German (-1) and UK (-3) and general 600 (-2) line impedance (see section on Line Impedances).
MH88400 Maximum Ratings
|
Parameter |
Symbol |
Min |
Max |
Units | |
|
1 |
DC Supply Voltage |
VDD |
-0.3 |
6 |
V |
|
2 |
Storage Temperature |
TS |
-55 |
+80 |
°C |
|
3 |
DC Loop Voltage |
VBAT |
-100 |
+100 |
V |
|
4 |
Ringing Voltage |
VR |
- |
120 |
VRMS |
|
5 |
Loop Current |
ILoop |
- |
90 |
mA |
MH88400 Features
• FAX and Modem interface
• Suitable for V.29 FAX & V.22 bis Data
• Allows caller identification
• Variants match German, UK, 600 & 900 network impedances
• Isolation circuitry conforms to international PTT requirements
• Transformerless 2-4 Wire conversion
• Loop start operation
• Pulse and DTMF operation
• Accommodates external monitor phone
• Line state detection outputs:
-loop current/ringing outputs
-monitor phone switch hook
• Single +5V operation
• Suitable for V.29 FAX & V.22 bis Data
• Allows caller identification
• Variants match German, UK, 600 & 900 network impedances
• Isolation circuitry conforms to international PTT requirements
• Transformerless 2-4 Wire conversion
• Loop start operation
• Pulse and DTMF operation
• Accommodates external monitor phone
• Line state detection outputs:
-loop current/ringing outputs
-monitor phone switch hook
• Single +5V operation
MH88400 Typical Application
Interface to Central Office for:
• DAA
• Modem
• FAX
• Answering Machine
• Terminal Equipment
• DAA
• Modem
• FAX
• Answering Machine
• Terminal Equipment
MH88400 Connection Diagram
MH88422 Parameters
- 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 +5 V operation, low on-hook power (5 mW)
- Full duplex data transmission
MH88422 General Description
Optically Coupled Data Access Arrangement
MH88422 Maximum Ratings
|
Parameter |
Symbol |
Min |
Max |
Units | |
|
1 |
DC Supply Voltage |
VDD |
-0.3 |
6 |
V |
|
2 |
Storage Temperature |
TS |
-55 |
+80 |
°C |
|
3 |
DC Loop Voltage |
VBat |
-100 |
+100 |
V |
|
4 |
Ringing Voltage |
VR |
- |
120 |
VRMS |
|
5 |
Loop Current |
ILoop |
- |
90 |
mA |
MH88422 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 +5 V operation, low on-hook power (5 mW)
- Full duplex data transmission
MH88422 Typical Application
MH88422 Datasheet
MH88422 Connection Diagram
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