MT9126
Features
- Full duplex transcoder with four encode channels and four decode channels
- 32 kb/s, 24 kb/s and 16 kb/s ADPCM coding plying with ITU-T (previously CCITT) G.726 (without 40 kb/s), and ANSI T1.303-1989
- Low power operation, 25 m W typical
- Asynchronous 4.096 MHz master clock operation
- SSI and ST-BUS interface options
- Transparent PCM bypass
- Transparent ADPCM bypass
- Linear PCM code
- No microprocessor control required
- Simple interface to Codec devices
- Pin selectable µ- Law or A-Law operation
- Pin selectable ITU-T or signed magnitude PCM coding
- Single 5 volt power supply
Applications
- Pair gain
- Voice mail systems
- Wireless telephony systems
ISSUE 2
Ordering Information MT9126AE 28 Pin Plastic DIP MT9126AS 28 Pin SOIC
-40 °C to +85 °C
May 1995
Description
The Quad ADPCM Transcoder is a low power, CMOS device capable of four encode and four decode functions per frame. Four 64 kbit/s PCM octets are pressed into four 32, 24 or 16 kbit/s ADPCM words, and four...
