TP3070V-XG

Overview

The TP3070V-XG is a COMBO II Programmable PCM CODEC/Filter designed for digital switching applications on subscriber line and trunk cards. It integrates transmit bandpass and receive lowpass channel filters with A-law and µ-law companding encoders and decoders. The device supports serial PCM interfaces clocked up to 4.096 MHz and features programmable gains over a 25.4 dB range in both directions. It includes hybrid balancing filters, interface latches for SLIC control, and operates within an extended temperature range of −40°C to +85°C.

Feature Summary

• Integrates switched capacitor filters with A-law or µ-law companding encoding and decoding
• Programmable transmit and receive gain controls with 0.1 dB step resolution
• Includes programmable hybrid balance cancellation filter for loop impedance matching
• Features six programmable interface latches for direct solid-state SLIC interfacing

Applications

• Subscriber line and trunk cards in digital switching systems
• Interfaces requiring transformer or active SLIC balancing
• CCITT and LSSGR compliant telecommunication equipment

Procurement Notes

Verify the specific ordering suffix against manufacturer documentation to confirm package type and temperature rating. Ensure compatibility with system voltage requirements and timing constraints before integration. Cross-reference part numbers with official distributors to confirm current availability status.

Selection Notes

Select this component for applications requiring integrated CODEC and filtering functions with programmable gain and hybrid balance capabilities. Consider the extended temperature range variant for harsh environments. Verify that the serial control interface matches the host processor's communication protocol.

Part Context

This device belongs to the National Semiconductor (now Texas Instruments) COMBO II family of programmable PCM CODECs. It is optimized for high-performance voice processing in telecommunications infrastructure, offering a compact solution for combining analog filtering and digital conversion functions.

Replacement Considerations

TP3070V-G/NOPB is a documented alternative within the same product family.