MT9122

Features: • Dual channel 64ms or single channel 128ms echo cancellation• Conforms to ITU-T G.165 requirements• ITU-T G.165/G.164 disable tone detection supported on all audio paths• Narrow-band signal detection• Programmable double-talk detection threshold• Non-...

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MT9122 Picture
SeekIC No. : 004430263 Detail

MT9122: Features: • Dual channel 64ms or single channel 128ms echo cancellation• Conforms to ITU-T G.165 requirements• ITU-T G.165/G.164 disable tone detection supported on all audio paths...

floor Price/Ceiling Price

Part Number:
MT9122
Supply Ability:
5000

Price Break

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

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268 Transactions

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Upload time: 2024/11/26

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Product Details

Description



Features:

• Dual channel 64ms or single channel 128ms echo cancellation
• Conforms to ITU-T G.165 requirements
• ITU-T G.165/G.164 disable tone detection supported on all audio paths
• Narrow-band signal detection
• Programmable double-talk detection threshold
• Non-linear processor with adaptive suppression threshold and comfort noise insertion
• Offset nulling of all PCM channels
• Controllerless mode or Controller mode with serial interface
• ST-BUS or variable-rate SSI PCM interfaces
• Selectable m/A-Law ITU-T G.711; m/A-Law Sign Mag; linear 2's complement
• Per channel selectable 12 dB attenuator
• Transparent data transfer and mute option
• 19.2 MHz master clock operation



Application

• Wireless Telephony
• Trunk echo cancellers



Pinout

  Connection Diagram


Specifications

Parameter

Symbol

Min

Max

Units

1

Supply Voltage

VDD-VSS

- 0.3

7

V

2

Voltage on any digital pin

Vi/o

VSS-0.3

VDD + 0.3

V

3

Continuous Current on any digital pin

Ii/o

±20

mA

4

Storage Temperature

TST

-65

150

5

Package Power Dissipation

PD

500

mW




Description

The MT9122 Voice Echo Canceller implements a cost effective solution for telephony voice-band echo cancellation conforming to ITU-T G.165 requirements. The MT9122 architecture contains two echo cancellers which can be configured to provide dual channel 64 millisecond echo cancellation or single channel 128 millisecond echo cancellation. The MT9122 supports ITU-T G.165 or G.164 tone disable requirements.

The MT9122 operates in two major modes: Controller or Controllerless. Controller mode allows access to an array of features for customizing the MT9122 operation. Controllerless mode is for applications where default register settings are sufficient.




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