TP3070V-G/63

Overview

The TP3070V-G/63 is a COMBO II Programmable PCM CODEC and Filter device 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 selectable companding encoders and decoders. The device supports a serial PCM interface clocked up to 4.096 MHz and features programmable gains over a 25.4 dB range in both directions. It includes a programmable hybrid balance filter for loop impedance adjustment and six programmable interface latches for SLIC control. Operating power is typically 80 mW, with standby power at 1.5 mW.

Feature Summary

• Integrates switched capacitor channel filters with A-law and µ-law companding PCM encoder and decoder
• Includes programmable hybrid balance cancellation filter for transformer and active SLIC interfaces
• Features six individually configurable interface latches for direct solid-state SLIC connection
• Supports time-slot assignment for up to 64 slots per frame with dual port capability

Applications

• Subscriber line interface circuits (SLIC) on digital switch cards
• Trunk card implementations in telecommunications exchanges
• CCITT and LSSGR compliant digital switching systems

Procurement Notes

Verify the specific suffix 'G/63' against the manufacturer's official documentation to confirm package type and compliance status. Ensure the component matches the original National Semiconductor or Texas Instruments specifications for the TP3070 family. Confirm that the operating temperature range aligns with the -40°C to +85°C requirement if applicable.

Selection Notes

Select this component for applications requiring integrated CODEC and filtering functions in digital telephony systems. Consider the dual-port capability of the TP3070 variant for space-switching requirements. Evaluate the programmable gain ranges and hybrid balance options to match specific loop impedance conditions. Verify compatibility with the system's master clock frequencies and serial interface timing modes.

Part Context

The TP3070 belongs to the second-generation COMBO II family, succeeding earlier COMBO devices. It was originally developed by National Semiconductor and later acquired by Texas Instruments. This generation introduced enhanced programmability and improved performance for digital switching applications compared to its predecessors.

Replacement Considerations

Public confirmed substitute part numbers: TP3070V-G/NOPB, TP3070V-G/63SN.