TP3054WM-X

Codecs Overview

The TP3054WM-X is a monolithic PCM CODEC/filter utilizing the A/D and D/A conversion architecture with a serial PCM interface. It operates on a single +5V supply, consuming typically 50 mW in active mode and 3 mW in power-down standby. The device supports transmit and receive master clocks of 1.536 MHz, 1.544 MHz, or 2.048 MHz, with bit clocks ranging from 64 kHz to 2.048 MHz. It features an input gain adjustment amplifier, active RC pre-filtering, switched-capacitor band-pass filtering rejecting signals below 200 Hz and above 3400 Hz, and auto-zero circuitry. The package is a 16-pin SOIC.

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.
• Supports both μ-law (TP3054) and A-law (TP3057) encoding formats with TTL or CMOS compatible digital interfaces.
• Designed for D3/D4 and CCITT applications with automatic power-down capabilities.

Codecs Applications

• D3/D4 telephony systems
• CCITT standard communication applications
• Line interface card circuits

Codecs Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to confirm pinout compatibility and functional equivalence. Confirm that the component meets the required temperature range specifications for the intended operating environment. Ensure that the source provides valid traceability for the National Semiconductor/Texas Instruments lineage.

Codecs Selection Notes

Select the TP3054 variant for μ-law encoding requirements or the TP3057 variant for A-law encoding. Consider the synchronous versus asynchronous clock operation modes when designing the timing circuitry. Evaluate the power consumption constraints to determine if the automatic power-down feature is necessary for the application.

Codecs Part Context

The TP3054WM-X belongs to the Enhanced Serial Interface CODEC/Filter COMBO Family. This family utilizes advanced double-poly CMOS process technology. The 'WM' suffix indicates a Molded Small Outline Package. The '-X' suffix typically denotes an extended temperature range or specific manufacturing lot variation within the National Semiconductor product line.

Codecs Replacement Considerations

The TP3057WM is a direct functional substitute within the same family, differing only in the supported encoding law (A-law instead of μ-law). Other members of the COMBO family may offer similar functionality but require verification of the specific encoding format and interface timing compatibility.

Codecs FAQ

What are the supported master clock frequencies?

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

How does the device handle frame sync pulses?

The COMBO can utilize either short frame sync pulses (one bit clock period long) or long frame sync pulses (three or more bit clock periods long).

What is the typical power consumption in active mode?

The typical operating power consumption is 50 mW.