TP3057WM/63SN

Codecs Overview

The TP3057WM/63SN is a monolithic PCM CODEC/filter utilizing A-law conversion architecture. It integrates an active RC pre-filter, switched-capacitor band-pass filter (200 Hz to 3400 Hz), companding coder, expanding decoder, and power amplifier. The device operates on dual ±5V supplies with typical active power consumption of 50 mW and standby power of 3 mW. It supports master clocks of 1.536 MHz, 1.544 MHz, or 2.048 MHz and bit clocks from 64 kHz to 2.048 MHz. The component is housed in a 16-SOIC surface-mount package.

Codecs Feature Summary

• Complete CODEC and filtering system including transmit high-pass and low-pass filtering, receive low-pass filter with sin x/x correction, and internal precision voltage reference.
• A-law compatible COder and DECoder with serial I/O interface and internal auto-zero circuitry for offset cancellation.
• Designed for D3/D4 and CCITT applications with TTL or CMOS compatible digital interfaces.

Codecs Applications

• D3/D4 frame format telephony systems
• CCITT standard communication applications
• Line interface card circuit designs

Codecs Procurement Notes

Verify the specific suffix '63SN' against official documentation, as datasheets primarily list 'TP3057WM'. Confirm current availability status, as this component family may be discontinued. Ensure compatibility with required A-law encoding standards and ±5V power supply requirements during integration.

Codecs Selection Notes

Select this model specifically for A-law PCM processing; the TP3054 variant handles μ-law. Verify that the 16-SOIC package fits the board layout constraints. Ensure the application requires the integrated filtering and amplification provided by this COMBO device rather than discrete components.

Codecs Part Context

This part belongs to the TP3054/TP3057 Enhanced Serial Interface CODEC/Filter COMBO Family originally developed by National Semiconductor and now managed by Texas Instruments. The family provides integrated analog-to-digital and digital-to-analog conversion with built-in audio filtering for telecommunications.

Codecs Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should verify if newer generations of CODECs from Texas Instruments meet the specific timing and interface requirements of the original design.

Codecs FAQ

What coding standard does the TP3057 support?

The TP3057 supports A-law companding coding conventions. The TP3054 variant supports μ-law.

How is the device powered down?

The device enters power-down mode when the MCLK R/PDN pin is held continuously high, or when both FS X and FSR inputs are held continuously low.

What are the supported master clock frequencies?

The device requires transmit and receive master clocks of 1.536 MHz, 1.544 MHz, or 2.048 MHz.