TP3070V-G

Overview

The TP3070V-G 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 PCM encoder and decoder functions. The device features a serial PCM interface clocked up to 4.096 MHz, programmable gains over a 25.4 dB range in both directions, and a hybrid balancing filter. It includes six programmable latches for SLIC control interfaces and operates within a temperature range of 0°C to +70°C.

Feature Summary

• Integrates switched capacitor channel filters with A-law or µ-law companding PCM encoding and decoding.
• Provides programmable transmit and receive gain controls with 0.1 dB resolution steps.
• Includes a programmable hybrid balance cancellation filter for transformer and active SLIC interfaces.
• Features six programmable interface latches for direct connection to solid-state SLIC control leads.

Applications

• Subscriber line and trunk card digital switching systems
• CCITT and LSSGR compliant telephony applications
• Interfaces requiring programmable hybrid balancing for loop impedance conditions

Procurement Notes

Verify the specific suffix 'G' against the manufacturer's official documentation to confirm lead-free status and RoHS compliance details. Confirm that the component meets the required environmental specifications for the intended deployment environment before finalizing procurement decisions.

Selection Notes

Select this component when designing systems requiring integrated CODEC and filtering capabilities with programmable hybrid balance adjustments. Ensure the system architecture supports the required serial PCM interface timing and voltage levels compatible with TTL and CMOS standards.

Part Context

This part belongs to the Texas Instruments COMBO II family of second-generation combined PCM CODEC and Filter devices. It is optimized for high-performance digital switching applications, offering advanced switched capacitor techniques for precise signal processing and interface balancing.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Consult the manufacturer's discontinuation notices or application notes for potential alternative solutions if this component is no longer available.

FAQ

What coding laws are supported by the TP3070V-G?

The device supports selectable A-law and µ-law (µ-255) companding coding laws, which can be configured via the serial control port during initialization.

How many programmable interface latches does the TP3070V-G provide?

The TP3070V-G provides six programmable interface latches (IL5 through IL0), each configurable as either an input or an output for SLIC control.

What is the maximum serial PCM data clock rate?

The serial PCM interface is capable of being clocked up to a maximum rate of 4.096 MHz.