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Echo Canceller LSI

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Optimum solution for hands-free call through portable device and intercom.

• Echo canceller

Part Name	Description
ML7202-001	Dual echo canceller (64ms x 2ch, μ/A-law I/F)＋ ADPCM Transcoder

• Echo canceller/noise canceller

Part Name	Description
ML7037-003	Dual echo canceller / noise canceller with dual codec

Specification
• Echo canceller

Part Name	Package	Cancelable Echo Delay Time	Voice Signal Interface	Power Supply (V)	Operating Frequency	Notes
ML7202-001	64TQFP	64ms/channel	μ-law, A-law	3.0 to 3.6	19.2MHz	Tone Gen/Det., VOX, Gain Control, Time Slot Assignment, etc.

• Echo canceller/noise canceller

Part Name	Feature	Package	Cancelable Echo Delay Time	Voice Signal Interface	Power Supply (V)	Operating Frequency	Notes
ML7037-003	Dual echo canceller / noise canceller with dual codec	64TQFP	Acoustic side 64ms, Line side 20ms	Acoustic side: analog Line side : analog,16-bit linear, μ-law analog	3.0 to 3.6	12.288MHz	Noise cancellation = 6 to 18dB(Typ.)