IDT82V1054APF

Telecom Overview

The IDT82V1054A is a quad-channel PCM CODEC with on-chip digital filters, designed for industrial temperature ranges (-40°C to +85°C). It operates on a single +3.3 V power supply and features software-selectable A/µ-law or linear code conversion, meeting ITU-T G.711-G.714 standards. The device supports two programmable PCM buses with data rates from 512 kbits/s to 8.192 Mbits/s and up to 128 time slots. Master clock frequencies are selectable from 1.536 MHz to 8.192 MHz. It includes advanced test capabilities like analog/digital loopbacks and level metering, alongside hardware ring trip mechanisms and SLIC signaling integration.

Telecom Feature Summary

• Integrated DSP core providing AC impedance matching, transhybrid balance, frequency response correction, and gain adjustment via programmable digital filters.
• Hardware Ring Trip mechanism that immediately reverses an output pin to stop ringing signals upon off-hook detection.
• Dual programmable tone generators per channel for testing, ringing, and DTMF generation, supported by two programmable chopper clocks for SLICs.
• Flexible PCM interface supporting compressed (A/µ-law) and linear coding with configurable sampling edges and time slot assignments across two independent buses.

Telecom Applications

• Central Office Switches
• Private Branch Exchange (PBX) systems
• Digital Loop Carrier (DLC) equipment
• Integrated Access Devices (IADs) including VoIP and VoDSL

Telecom Procurement Notes

Verify the specific ordering suffix against the manufacturer's current datasheet to confirm package type and temperature grade. Ensure the component source matches the original Integrated Device Technology or Renesas Electronics Corporation specifications. Check for any End-of-Life notices or product change notifications that may affect availability or assembly locations.

Telecom Selection Notes

Select this component when a multi-channel codec with integrated DSP filtering and SLIC control is required. Verify compatibility with the system's master clock frequency requirements and PCM bus timing constraints. Ensure the design accommodates the 64-pin TQFP package dimensions and thermal dissipation needs for the specified industrial operating range.

Telecom Part Context

This part belongs to the IDT82V1054 family of programmable PCM CODECs. Originally manufactured by Integrated Device Technology, Inc., the product line was acquired by Renesas Electronics Corporation. The device serves as a key interface solution in telecommunications infrastructure, bridging analog subscriber lines with digital time-division multiplexed networks.

Telecom Replacement Considerations

Consult official substitution guides for compatible quad-channel codecs with MPI interfaces. Verify pinout compatibility and register mapping if replacing with similar devices from other manufacturers. Ensure equivalent performance in terms of filter characteristics and SLIC signaling capabilities.