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MT8977

Features: • D3/D4 or ESF framing and SLC-96 compatible• Two frame elastic buffer with jitter tolerance improved to 156 UI• Insertion and detection of A, B, C, D bits, signalling freeze, optional debounce• Selectable B8ZS, jammed bit (ZCS) or no zero code suppression• ...

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SeekIC No. : 004430119 Detail

MT8977: Features: • D3/D4 or ESF framing and SLC-96 compatible• Two frame elastic buffer with jitter tolerance improved to 156 UI• Insertion and detection of A, B, C, D bits, signalling fr...

MT8977 Data Sheet

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Part Number:
MT8977
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/11/26

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Product Details

Description



Features:

• D3/D4 or ESF framing and SLC-96 compatible
• Two frame elastic buffer with jitter tolerance improved to 156 UI
• Insertion and detection of A, B, C, D bits, signalling freeze, optional debounce
• Selectable B8ZS, jammed bit (ZCS) or no zero code suppression
• Yellow alarm and blue alarm signal capabilities
• Bipolar violation count, FT error count, CRC error count
• Selectable robbed bit signalling
• Frame and superframe sync. signals, Tx and Rx
• AMI encoding and decoding
• Per channel, overall, and remote loop around
• Digital phase detector between T1 line and STBUS
• One uncommitted scan point and drive point
• Pin compatible with MT8976 and MT8979
• ST-BUS compatible


Application

• DS1/ESF digital trunk interfaces
• Computer to PBX interfaces (DMI and CPI)
• High speed computer to computer data links


Pinout

Connection Diagram


Specifications

Parameter
Symbol
Min
Max
Units
Power Supplies with respect to VSS
VDD
-0.3
7
V
Voltage on any pin other than supplies
VSS-0.3
VDD+0.3
V
Current at any pin other than supplies
40
mA
Storage Temperature
TST
-55
125
Package Power Dissipation
P
800
mW
* Exceeding these values may cause permanent damage. Functional operation under these conditions is not implied.


Description

The MT8977 is a variant of the MT8976 framer, which has been enhanced to meet ACCUNET® T1.5 wander tolerance (138 UI).

The MT8977 meets ESF and D3/D4 formats, and is compatible with SLC-96 systems




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