TP3054BN

Codecs Overview

The TP3054BN is a monolithic serial interface combined PCM codec and filter manufactured by Texas Instruments. It integrates transmit high-pass and low-pass filtering, receive low-pass filtering with (sin x)/x correction, active RC noise filters, and μ-Law compatible coder/decoder circuits. The device operates on ±5-V power supplies with a typical active supply current of 9 mA per rail and features an internal autozero circuitry for precision. It utilizes a TTL- or CMOS-compatible digital interface and supports master clock frequencies of 1.536 MHz, 1.544 MHz, or 2.048 MHz. The component is housed in a 16-pin DW or N package and is characterized for operation within a temperature range of 0°C to 70°C.

Codecs Feature Summary

• Integrates complete PCM codec functions including A/D conversion, D/A conversion, and band-pass filtering for voice signals.
• Features patented circuitry designed to achieve low transmit channel idle noise levels.
• Includes an internal precision voltage reference and autozero logic to maintain signal integrity.
• Supports both synchronous and asynchronous timing modes with flexible frame-sync pulse configurations.

Codecs Applications

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

Codecs Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm the exact package type and temperature rating. Ensure that the procurement specifications match the required operational voltage and interface compatibility. Confirm compliance with relevant environmental standards prior to integration into the final design.

Codecs Selection Notes

Select this component for applications requiring a single-chip solution for full-duplex voice telephone circuit interfacing with TDM systems. Consider the TP13054B variant if extended industrial temperature ranges are necessary. Verify that the system timing requirements align with the supported master clock frequencies and frame-sync modes.

Codecs Part Context

This device is part of the TP305xB and TP1305xB family of monolithic serial interface codecs. It serves as an improved version of earlier National Semiconductor designs, offering enhanced performance in terms of noise reduction and integration density. The component is pin-for-pin compatible with previous generations while providing updated electrical characteristics.

Codecs Replacement Considerations

The TP13054B is a verified substitute offering extended temperature range capabilities (-40°C to 85°C). Designers should verify that the thermal management requirements of the application support the higher operating temperature limits of the replacement part.