| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
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14 pcs
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14 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
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| SVHC Present |
The MSM7731-02GA from OKI Semiconductor is an integrated circuit designed for portable, hands-free communication devices. It features built-in line echo canceler, acoustic echo canceler, and transmission signal noise canceler.
Key electrical specifications include single 3V power supply operation (2.7 to 3.6 V), echo attenuation of 35 dB (typ.) for white noise, and cancelable echo delay times of up to 27 ms for line echo and 59 ms for acoustic echo. The device also incorporates a transmission signal noise canceler with up to 17 dB noise attenuation for white noise and 40 dB for single tone.
It includes a built-in 2-channel CODEC supporting synchronous transmission and reception for full-duplex operation. The analog input gain stage offers a maximum gain of 30 dB, and the analog output can drive a 1.2 kΩ load. Digital interface options include µ-law PCM and 16-bit linear coding formats, with sync formats like Normal-sync and short-frame-sync.
The MSM7731-02GA is housed in a 64-pin plastic QFP package (QFP64-P-1414-0.80-BK) and is suitable for surface mounting. It supports various digital transmission rates and includes built-in clock generators.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.75 | $0.75 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
It operates from a single 3 V supply, with a range of 2.7 V to 3.6 V.
It is offered in a QFP64-P-1414-0.80-BK surface mount package.
Yes, it provides echo attenuation of 35 dB typical for white noise and can cancel echo delay up to 27 ms (line + acoustic) or 59 ms (acoustic only).
It offers 17 dB typical noise attenuation for white noise and 40 dB typical for single tone.
It supports µ-law PCM and 16-bit linear coding formats with normal-sync and short-frame-sync.
Operating current is 35 mA typical at 3.0 V; power-down current is 0.02 mA typical.