Optimum solution for hands-free call through portable device and intercom.
Description
• 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 datasheet[pdf] |
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.) |
Application
- Hands-free kit and speaker phone
- Sound echo cancel function
- Office telephone exchange and terminal adaptor
- Line echo cancel function that returns in 2/4 line conversion hybrid circuit

