Renesas IDT82V1054APFG

Overview

IDT82V1054APFG from Integrated Device Technology is a quad-channel, programmable PCM CODEC with on-chip digital filters, MPI interface, and integrated DSP for AC impedance matching, transhybrid balance, and frequency response correction. It supports A/µ-law and linear coding (14 effective bits + 2 sign bits), operates from a single +3.3 V supply, delivers 300 Ω AC analog drive, and functions across –40°C to +85°C for industrial telecom systems.

For engineers reviewing the IDT82V1054APFG datasheet, IDT82V1054APFG pinout, IDT82V1054APFG application, or IDT82V1054APFG equivalent, key selection criteria include dual PCM bus support (up to 8.192 Mbps), hardware ring trip capability, 7 SLIC signaling pins per channel, programmable chopper clocks, and compliance with ITU-T G.711–G.714 standards.

Technical Context

The IDT82V1054APFG integrates four independent voice channels, each with dedicated ADC/DAC paths, oversampling converters, and programmable digital filters implemented via an embedded DSP core. Its signal processing chain supports real-time gain adjustment, transhybrid echo cancellation, and frequency-domain correction - all configurable via MPI-accessible Coe-RAM and local/global registers.

It features two fully independent PCM buses (DR1/DX1 and DR2/DX2) with programmable sampling edge, up to 7-BCLK transmit/receive offset, and flexible time-slot assignment (up to 128 slots). The MPI interface (CCLK/CS/CI/CO) enables register and coefficient programming at up to 8.192 MHz, while hardware ring trip provides deterministic off-hook detection and immediate SOx pin reversal.

Key Specifications

Pinout & Package

Package: 64-pin TQFP (10 mm × 10 mm, 0.5 mm pitch), lead-free and RoHS-compliant.

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 MAX11046BCP+, the IDT82V1054APFG uniquely combines quad-channel PCM CODEC functionality, full SLIC signaling control, hardware ring trip, and ITU-T G.711 compliance in a single industrial-grade package - making it irreplaceable for carrier-class analog line interface designs.

Availability

IDT82V1054APFG is available at Aetrix Electronics and suitable for Central Office Switches, PBX voice gateways, and Integrated Access Devices requiring stable component supply, long-term lifecycle support, and industrial temperature operation.

Supply support for IDT82V1054APFG 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.

The IDT82V1054APFG belongs to IDT's legacy telecom CODEC product line, engineered specifically for digital telephony infrastructure - including central office, PBX, DLC, and IAD applications demanding robust SLIC control and ITU-T compliance.

FAQ

What is the primary function of the IDT82V1054APFG in a telecom system?

The IDT82V1054APFG serves as a quad-channel PCM CODEC that converts analog voice signals to digital PCM streams and vice versa, while providing full SLIC signaling control, hardware ring trip, and programmable digital filtering. In telecom systems like PBX or Central Office switches, the IDT82V1054APFG manages four independent analog subscriber lines - handling A/µ-law companding, transhybrid balance, and PCM framing to interface with TDM networks. Its integrated DSP and MPI interface enable real-time adaptation to line conditions without external processors.

Does the IDT82V1054APFG support both A-law and µ-law companding?

Yes, the IDT82V1054APFG supports software-selectable A-law and µ-law companding per channel, as well as linear coding (16-bit 2's complement with 14 effective bits). This selection is configured via local registers accessible through the MPI interface. The device meets ITU-T G.711 requirements for both companding standards, ensuring interoperability with global PSTN infrastructure - critical for multi-region deployments of IADs and VoIP gateways using the IDT82V1054APFG.

How does the hardware ring trip feature work in the IDT82V1054APFG?

The hardware ring trip feature in the IDT82V1054APFG detects off-hook events on any channel's SLIC signaling inputs (e.g., SI1/SI2) and immediately reverses the corresponding SO1 or SO2 output pin - terminating ringing voltage within microseconds, independent of host processor latency. This deterministic response ensures compliance with FCC Part 68 and ETSI EN 300 386 timing requirements. The IDT82V1054APFG implements this entirely in hardware, eliminating reliance on interrupt service routines or firmware polling - a key differentiator for carrier-grade reliability.

What are the supported master clock frequencies for the IDT82V1054APFG?

The IDT82V1054APFG supports nine discrete master clock (MCLK) frequencies: 1.536 MHz, 1.544 MHz, 2.048 MHz, 3.072 MHz, 3.088 MHz, 4.096 MHz, 6.144 MHz, 6.176 MHz, and 8.192 MHz. Each frequency aligns with standard telephony sampling rates (e.g., 8 kHz × N) and determines the internal DSP clock domain. The IDT82V1054APFG uses MCLK to derive BCLK, FS, and chopper clock timing - enabling precise synchronization with T1/E1 trunks, DSL PHYs, and other timing-critical subsystems in systems deploying the IDT82V1054APFG.

Can the IDT82V1054APFG operate with a single 3.3 V supply?

Yes, the IDT82V1054APFG operates from a single +3.3 V supply, with separate analog (VDDA12, VDDA34, VDDB) and digital (VDDD) power domains. All supply pins require local 0.1 µF decoupling to GNDA/GNDD, and CNF requires a 0.22 µF capacitor to ground. This single-supply architecture simplifies power design in space-constrained telecom modules. The IDT82V1054APFG maintains full specification performance - including 300 Ω analog drive and –40°C to +85°C operation - under this configuration, making it ideal for cost-sensitive and thermally demanding deployments.