TP3056BDW

The TP3056B is a monolithic serial interface PCM codec and filter device from Texas Instruments. This single-chip solution integrates a pulse code-modulated encoder and decoder with analog filters, providing all necessary functions to interface a full-duplex voice telephone circuit with a time-division-multiplexed system.

Key electrical characteristics include 8-bit resolution, a serial data interface, and operation from a 4.75V to 5.25V supply. It features m-Law and A-Law compatible coder and decoder functions, along with transmit high-pass and low-pass filtering, and a receive low-pass filter with (sin x)/x correction. The device also includes active RC noise filters and an internal precision voltage reference.

Designed for applications such as line interfaces for digital transmission and switching systems, subscriber line concentrators, and digital signal processing, the TP3056B operates within a temperature range of 0°C to 70°C. It is available in a 16-pin SOIC package suitable for surface mounting.

This device requires a master clock of 2.048 MHz and a transmit/receive data clock synchronous with the master clock, varying from 64 kHz to 2.048 MHz, along with transmit and receive frame-sync pulses. It also offers low operating power consumption of 60 mW typical and a power-down mode consuming only 5 mW typical.