Dual 16-Bit Linear Codec-Filter

The MC143416 Dual 16–Bit Linear Codec–Filter is a single–chip implementation of the data conversion interface required to design high–speed modems meeting a wide range of standards such as ITU–T V.34 and V.90 modem. It includes two high performance Analog–to–Digital (A/D) and Digital–to–Analog (D/A) data converters. The device performs all filtering operations related to the conditioning and sample rate conversion of signals to and from the data interface. Output from both codecs (COder/DECoder) is in 16–bit 2s complement format.

MC143416 Features

? Fully–Differential Analog Circuit Design for Lowest Noise

? Two High Performance 16–Bit Sigma–Delta A/D and D/A Converters

? Band–Pass and Low–Pass Filtering for Both Codecs is Performed On–Chip

? Power Monitor Circuit

? Single 5 V ± 5 Power Supply

? Two Configurable Serial Ports

? On–Chip Precision Reference Voltage

? On–Chip Speaker Driver and Mixer with Programmable Gain — Capable of Delivering 15 mW of Power into a Small Speaker (32 ?)

? Bandwidth is 0.425 * FS

? No External Filtering Required Because of Flat Response Over Passband

? Capable of Providing the Analog Front End for Wide Range of Modem Standards