TP3054WM

Codecs Overview

The TP3054WM is a monolithic PCM CODEC/filter utilizing the A/D and D/A conversion architecture with a serial PCM interface. It implements m-law encoding (TP3054) or A-law encoding (TP3057). The device operates on dual power supplies of VCC = +5V ±5% and VBB = -5V ±5%. It requires transmit and receive master clocks of 1.536 MHz, 1.544 MHz, or 2.048 MHz, and bit clocks ranging from 64 kHz to 2.048 MHz. Typical active power consumption is 50 mW, while standby power-down mode consumes approximately 3 mW. The component is housed in a 16-pin SOIC surface mount package.

Codecs Feature Summary

• Complete CODEC and filtering system including transmit high-pass/low-pass filtering, receive low-pass filter with sin x/x correction, and active RC noise filters.
• Supports both m-law and A-law compatible COder and DECoder functions with internal precision voltage reference and auto-zero circuitry.
• Features TTL or CMOS compatible digital interfaces for flexible integration with various serial communication protocols.
• Designed for D3/D4 and CCITT applications with automatic power-down capabilities to maximize line interface card circuit density.

Codecs Applications

• D3/D4 telephony applications
• CCITT standard compliant systems
• Line interface cards requiring high circuit density

Codecs Procurement Notes

Verify the specific law variant required, as the base model TP3054 corresponds to m-law and TP3057 to A-law. Confirm the suffix 'WM' indicates the 16-SOIC surface mount package type. Check current availability status as legacy components may be discontinued. Ensure supply voltages match the specified +/- 5V requirements for proper operation.

Codecs Selection Notes

Select the TP3054 variant for m-law encoding requirements or the TP3057 variant for A-law encoding. Ensure the design supports the necessary dual +/- 5V power rails. Verify that the serial interface timing aligns with either synchronous or asynchronous clocking modes. Consider the thermal dissipation characteristics given the typical 50 mW active power consumption during operation.

Codecs Part Context

This component belongs to the Enhanced Serial Interface CODEC/Filter COMBO Family manufactured by Texas Instruments (formerly National Semiconductor). It is part of a series designed for telecommunications signal processing, specifically handling analog-to-digital and digital-to-analog conversions for voice band signals within standard telephony networks.

Codecs Replacement Considerations

Public confirmed substitute part numbers include TP3054J, TP3054N, TP3057J, TP3057N, and TP3057V. These variants share the same core functionality but differ in packaging types such as Dual-In-Line or Plastic Chip Carriers. Verify pin compatibility and package dimensions when substituting.

Codecs FAQ

What is the difference between the TP3054 and TP3057 models?

The TP3054 implements m-law encoding, while the TP3057 implements A-law encoding. Both devices share identical hardware architectures and electrical characteristics otherwise.

How does the device handle power-down states?

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. In this state, non-essential circuits are deactivated, reducing power consumption to approximately 3 mW.

Can the TP3054WM operate with asynchronous clocks?

Yes, the device supports asynchronous operation where separate transmit and receive master clocks can be applied. However, for best transmission performance, it is recommended that the receive master clock be synchronous with the transmit master clock.