Multi-Function ADPCM Codec
Documents
| » PDF of this Data Sheet (822 KB) is
available. |
ML7029.pdf
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Applications
Description
The
ML7029 is a single channel ADPCM Codec LSI device which performs mutual
transcoding between the analog voice band signal and 32 kbps ADPCM serial data.
The device includes transmit/receive data mute and gain control, and side-tone
path and gain control. A wide clock frequency range allows for enhanced voice
quality tuning. By using the serial interface, the device allows control of
gain, mute, side tone, attenuation, and power-down modes.
Using advanced CMOS circuit technology, this device operates from a single
3-V power supply and provides low power consumption.
Block Diagram
Features
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Single 3V Power supply Operation V DD :2.7 V to 3.6
V |
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ADPCM Algorithm:ITU-T G.726 (32 kbps, 24 kbps, 16 kbps)
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Full-Duplex Transmit / Receive Operation |
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Transmit / Receive Synchronous Mode Only |
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PCM Data Format:µ-law |
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Serial PCM / ADPCM Transmission Data Rate: 64 kbps to 2048
kbps |
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Low Power Consumption |
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Operating Mode:18 mW Typ.(VDD =3.0 V, Sampling
frequency =8 kHz) |
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Power-Down Mode:0.03 mW Typ.(VDD =3.0 V, Sampling
frequency=8 kHz) |
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Sampling Clock Frequency:from 6 kHz to 21 kHz selectable
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Master Clock Frequency (Sampling Clock Freq x 1296):10.368 MHz
at 8 kHz Sampling Clock |
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Transmit / Receive Mute,Transmit / Receive Programmable Gain
Control |
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Side Tone Path with Programmable Attenuation (8-step Level
Adjustment) |
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Serial MCU Interface Control |
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Package:
30-pin plastic SSOP (SSOP30-P-56-0.65-K)
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