Description

The MT91L60/61 3V Multi-featured Codec incorporates a built-in Filter/Codec, gain control and

programmable sidetone path as well as on-chip anti-alias filters, reference voltage and bias source. The device supports both ITU-T and sign- magnitude A-Law and µ-Law requirements. The MT91L60/61 is a true 3V device employing a fully differential architecture to ensure wide dynamic range.

Features

• Single 2.7-3.6 volt supply operation

• MT91L61 version features a delayed framing pulse in SSI and ST-BUS modes to facilitate

cascaded devices

• Programmable µ-Law/A-Law Codec and Filters

• Programmable ITU-T (G.711)/sign-magnitude coding

• Programmable transmit, receive and side-tone gains

• Fully differential interface to handset transducers - including 300 ohm receiver driver

• Flexible digital interface including ST-BUS/SSI

• Serial microport

• Low power operation

• ITU-T G.714 compliant

• Multiple power down modes

Applications

• Battery operated equipment

• Digital telephone sets

• Cellular radio sets

• Local area communications stations

• Pair Gain Systems

• Line cards