Renesas IDT82V1054APF

Overview

IDT82V1054APF from Integrated Device Technology is a quad-channel, programmable PCM CODEC with integrated digital filters, MPI control interface, and SLIC signaling support. It performs A/µ-law or linear 14-bit+2-sign-bit analog-to-digital/digital-to-analog conversion, supports dual PCM buses up to 8.192 Mbps, and delivers hardware ring trip, dual tone generation, and programmable chopper clocks for telephony line interface circuits.

For engineers reviewing the IDT82V1054APF datasheet, IDT82V1054APF pinout, IDT82V1054APF application, or IDT82V1054APF equivalent, key selection criteria include its 64-pin TQFP package, industrial temperature range (−40°C to +85°C), 3.3 V single-supply operation, 7 SLIC signaling pins per channel, and compliance with ITU-T G.711–G.714 standards in central office, PBX, and VoIP gateway designs.

Technical Context

The IDT82V1054APF integrates a programmable DSP core that implements AC impedance matching, transhybrid balance, frequency response correction, and gain adjustment-all configurable via coefficient RAM. Its two independent PCM interfaces support time-slot assignment across 128 slots, with programmable sampling edge (rising/falling BCLK) and up to 7-clock transmit/receive delay alignment.

Each of its four channels features dedicated analog I/O (VIN/VOUT), dual tone generators, hardware ring trip logic, and seven SLIC signaling terminals-including two debounced inputs and three bidirectional I/Os-enabling direct interface to line interface circuits without external glue logic.

Key Specifications

Pinout & Package

Package: 64-pin Thin Quad Flat Package (TQFP), 10 mm × 10 mm, 0.5 mm pitch, exposed pad (thermal enhancement).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar quad-channel PCM CODEC applications.

Compared with TI TLV320AIC3254 and MAX11046BCUI+, the IDT82V1054APF uniquely combines quad-channel voiceband conversion, SLIC signaling I/O, hardware ring trip, and programmable telephony filters in a single industrial-grade package-making it irreplaceable in carrier-grade line interface designs.

Availability

IDT82V1054APF is available at Aetrix Electronics and suitable for Central Office Switch, PBX, and VoIP Integrated Access Device applications requiring stable component supply, long-term lifecycle assurance, and traceable sourcing from authorized channels.

Supply support for IDT82V1054APF includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Integrated Device Technology (IDT), now part of Renesas Electronics, is a fabless semiconductor company specializing in timing, memory interface, RF, and high-performance interconnect solutions for communications infrastructure.

The IDT82V1054APF belongs to IDT's legacy telephony CODEC product line, engineered specifically for digital switching systems, DLCs, and integrated access devices requiring G.711-compliant voice conversion and robust SLIC control.

FAQ

What is the primary function of the IDT82V1054APF in a telephony system?

The IDT82V1054APF serves as a quad-channel PCM CODEC with integrated digital filters and SLIC signaling control. It converts analog voice signals to A/µ-law or linear PCM data and vice versa, while managing line-side signaling, hardware ring trip, and tone generation. In a telephony system, the IDT82V1054APF acts as the analog front-end bridge between subscriber lines and digital TDM networks - enabling full-featured voice channel handling in central office, PBX, and VoIP gateway platforms.

Does the IDT82V1054APF support both T1 and E1 clocking standards?

Yes, the IDT82V1054APF supports master clock frequencies required for both T1 (1.544 MHz) and E1 (2.048 MHz) systems, along with additional options including 1.536 MHz, 3.072 MHz, 4.096 MHz, 6.144 MHz, and 8.192 MHz. Its flexible BCLK and FS timing architecture allows seamless integration into either standard, and its programmable PCM interface accommodates frame structures and time-slot allocations specific to T1 (24-channel) or E1 (32-channel) formats.

How does the hardware ring trip feature work in the IDT82V1054APF?

The IDT82V1054APF implements hardware ring trip by continuously monitoring SI1/SI2 debounced inputs for off-hook transitions. Upon detection, it immediately reverses the state of the corresponding SO1/SO2 output pin - cutting off ringing voltage within microseconds without CPU intervention. This deterministic response meets GR-909 safety requirements and eliminates software latency risks. The IDT82V1054APF's ring trip logic operates independently per channel and requires no register writes or firmware polling.

Can the IDT82V1054APF operate with a single 3.3 V supply?

Yes, the IDT82V1054APF is designed for single 3.3 V operation across all domains: VDDD (digital), VDDA12/VDDA34/VDDB (analog), and interface I/Os. Its 3 V digital I/Os tolerate 5 V inputs, allowing direct connection to legacy 5 V controllers without level shifters. All analog supplies are internally regulated and decoupled via dedicated 0.1 µF capacitors - confirmed in the Absolute Maximum Ratings and Recommended DC Operating Conditions sections of the official datasheet for IDT82V1054APF.

What type of PCM interface configuration does the IDT82V1054APF support?

The IDT82V1054APF supports two independent, fully programmable PCM buses (Highway One and Highway Two), each configurable for rising- or falling-edge sampling, 0–7 BCLK slot offsets, and selectable time-slot assignment across up to 128 slots. It accepts BCLK from 512 kHz to 8.192 MHz in 64 kHz increments and supports both compressed (8-bit) and linear (16-bit) PCM formats. The IDT82V1054APF's dual-bus architecture enables redundancy, multi-protocol routing, or split-channel aggregation - critical in carrier-grade switching and gateway applications.