TP3056BDW

Codecs Overview

The TP3056BDW is a monolithic serial interface combined PCM codec and filter device manufactured by Texas Instruments. It integrates a single-chip PCM codec (pulse code-modulated encoder and decoder) with analog filters to interface full-duplex voice telephone circuits with TDM systems. The device operates on dual ±5-V supplies, consuming 60 mW typically in active mode and 5 mW in power-down mode. It supports both A-law and m-law coding standards via pin selection. Key electrical parameters include a master clock frequency of 2.048 MHz, bit clock range from 64 kHz to 2.048 MHz, and an operating temperature range of 0°C to 70°C. The component is housed in a 16-pin SOIC package.

Codecs Feature Summary

• Integrates transmit high-pass/low-pass filtering and receive low-pass filtering with (sin x)/x correction on a single chip.
• Features patented circuitry designed to achieve low transmit channel idle noise levels.
• Includes an internal precision voltage reference and autozero circuitry for signal integrity.
• Supports TTL- or CMOS-compatible digital interfaces for flexible system integration.

Codecs Applications

• Line interface for digital transmission and switching of T1/E1 carrier systems
• Subscriber line concentrators in central office telephone systems
• Digital-encryption systems requiring voice-band processing
• Digital voice-band data-storage systems

Codecs Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to confirm package type and temperature grade. Ensure that the procurement source provides valid RoHS compliance information as required by project specifications. Confirm availability status directly with authorized distributors, as lead times may vary based on production schedules.

Codecs Selection Notes

Select this component when designing systems requiring integrated PCM encoding and decoding with built-in analog filtering. Ensure the design accommodates the required ±5 V supply rails and the 2.048 MHz master clock input. Verify that the application environment remains within the specified 0°C to 70°C operating temperature range for optimal performance.

Codecs Part Context

The TP3056B series represents a family of monolithic serial interface codecs designed for telecommunications applications. The BDW variant specifically denotes the small outline IC package configuration. This device belongs to the broader category of PCM codecs used in legacy and specialized digital telephony infrastructure.

Codecs Replacement Considerations

The TP3057BDW is a documented member of the same product family. Verify functional compatibility and pinout alignment before substitution. Consult official datasheets for both components to ensure parameter matching for specific design requirements.