TP13057BN

Codecs Overview

The TP13057BN 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 an A-Law compatible coder and decoder. The device operates on dual ±5-V supplies with typical active power consumption of 50 mW and standby power of 3 mW. It features a TTL- or CMOS-compatible digital interface and supports master clock frequencies of 1.536 MHz, 1.544 MHz, or 2.048 MHz. Characterized for operation from –40°C to 85°C, it utilizes a 16-pin PDIP package.

Codecs Feature Summary

• Integrates complete PCM codec and line filtering functions on a single chip
• Supports A-Law encoding and decoding standards
• Includes internal precision voltage reference and autozero circuitry
• Features automatic power-down capability for energy efficiency

Codecs Applications

• Line interface for T1 carrier systems
• PABX and central office telephone switching
• Subscriber line concentrators
• Digital voice-band data-storage systems

Codecs Procurement Notes

Verify the specific manufacturer source when sourcing this component, as historical production may involve National Semiconductor prior to acquisition by Texas Instruments. Confirm that the received unit matches the exact TP13057BN designation to ensure correct A-Law functionality and industrial temperature rating specifications.

Codecs Selection Notes

Select the TP13057BN specifically for applications requiring A-Law compression rather than μ-Law, which corresponds to the TP13054B variant. Ensure the design accommodates the required ±5 V supply rails and provides adequate thermal management for the specified power dissipation ratings within the operating temperature range.

Codecs Part Context

This component belongs to the TP305xB and TP1305xB family of monolithic serial interface codecs. The '1' in the model number indicates the extended industrial temperature range version (-40°C to 85°C), distinguishing it from the commercial grade TP3057B. It serves as an improved successor to earlier National Semiconductor designs.

Codecs Replacement Considerations

The TP3057BN is pin-for-pin compatible but limited to commercial temperature ranges. For direct replacement within the same industrial specification, verify availability of other TP13057 variants.