TP3057WM

Codecs Overview

The TP3057WM is an A-law monolithic PCM CODEC/filter utilizing a switched-capacitor architecture. It operates on dual ±5V supplies with typical active power consumption of 50 mW and standby power of 3 mW. The device supports master clocks of 1.536 MHz, 1.544 MHz, or 2.048 MHz and bit clocks ranging from 64 kHz to 2.048 MHz. It features TTL/CMOS compatible digital interfaces and operates within a temperature range of -25°C to +125°C.

Codecs Feature Summary

• Integrated CODEC system combining transmit high-pass/low-pass filtering, receive low-pass filtering with sinc correction, and A-law companding coder/decoder.
• Supports both synchronous and asynchronous serial interface operation with flexible frame sync pulse configurations.
• Includes internal precision voltage reference and auto-zero circuitry for signal integrity.

Codecs Applications

• D3/D4 telephony applications
• CCITT standard communication systems

Codecs Procurement Notes

Verify the specific ordering suffix against current manufacturer documentation to confirm package type and environmental compliance. Confirm that the component meets all required electrical specifications for the target operating environment before integration into the design.

Codecs Selection Notes

Select the TP3057WM specifically when A-law encoding is required, as opposed to the μ-law TP3054. Ensure the system design accommodates the necessary dual ±5V power supply rails and provides the required master and bit clock signals for proper synchronization.

Codecs Part Context

This component belongs to the Enhanced Serial Interface CODEC/Filter COMBO Family, which also includes the TP3054. Both devices share identical hardware architectures and pinouts but differ in their supported companding standards, with the TP3057 dedicated to A-law applications.

Codecs Replacement Considerations

The TP3054 serves as a functional alternative if μ-law encoding is acceptable instead of A-law. Other family members like the TP3057BDW offer different packaging options while maintaining the same core functionality.

Codecs FAQ

How does the MCLKR/PDN pin function?

The MCLKR/PDN pin acts as a dual-purpose input. When held continuously high, it places the device in power-down mode. When connected to a clock signal or held low, it powers up the device and can serve as the receive master clock.

What is the difference between short and long frame sync modes?

In short frame mode, the frame sync pulses are one bit clock period long. In long frame mode, the pulses must be three or more bit clock periods long, allowing for additional signaling bits or specific timing requirements.