The ML7048 is a three-channel single rail CMOS CODEC LSI. This device contains filters for A-to-D and D-toA conversions of voice signals ranging 300 to 3400 Hz. The ML7048 is designed for a single power supply and low power applications and contains three-channel A-toD and D-to-A converters on a single chip, and achieves a reduced footprint and external component parts. The ML7048 is best suited for ISDN terminal and digital telephone terminal applications.