TP3054N-X/NOPB

Codecs Overview

The TP3054N-X/NOPB is a monolithic PCM CODEC/filter utilizing the A/D and D/A conversion architecture of the Enhanced Serial Interface COMBO Family. It implements m-law encoding for telephony applications, featuring an input gain adjustment amplifier, active RC pre-filter, switched-capacitor band-pass filter rejecting signals below 200 Hz and above 3400 Hz, and auto-zero circuitry. The device operates on dual ±5V supplies with typical power consumption of 50 mW in active mode and 3 mW in standby. It supports 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. The package is a 16-pin Dual-In-Line (PDIP-16).

Codecs Feature Summary

• Integrated CODEC system combining analog filtering, companding coding/decoding, and serial interface.
• Supports both synchronous and asynchronous clocking modes for flexible system integration.
• Includes internal precision voltage reference and auto-zero circuitry for signal integrity.
• Features low-power operation with automatic power-down capabilities.

Codecs Applications

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

Codecs Procurement Notes

Verify the specific suffix 'X' against the manufacturer's official documentation to confirm temperature range and material compliance details. Ensure the PDIP-16 package matches the target PCB footprint requirements. Confirm that the m-law encoding format aligns with the system's digital interface standards before finalizing procurement.

Codecs Selection Notes

Select this component for designs requiring integrated audio filtering and m-law PCM encoding in a single package. Consider the ±5V supply requirement and the need for external resistors to set transmit gain. Evaluate the 290 ms total encoding delay and 180 ms decoding delay against real-time processing constraints. Verify compatibility with available master clock frequencies.

Codecs Part Context

This part belongs to the TP3054/TP3057 Enhanced Serial Interface CODEC/Filter COMBO Family manufactured by Texas Instruments (formerly National Semiconductor). The TP3054 variant specifically utilizes m-law compression, whereas the TP3057 uses A-law. The family is designed for high-density line interface cards in telecommunications infrastructure.

Codecs Replacement Considerations

The TP3057N/X/NOPB is a functional substitute within the same family but utilizes A-law encoding instead of m-law. Direct replacement requires verifying that the system protocol supports A-law coding. Other members of the COMBO family may offer different pinouts or feature sets.