The 821054 is a feature rich, single-chip, programmable 4-
channel PCM CODEC with on-chip filters. Besides the

Product Options

Part Number Part Status Pkg. Type Lead Count (#) Pb (Lead) Free Carrier Type Buy Sample
Active PQFP 64 Yes Tray

Documentation & Downloads

Title language Type Format File Size Date
Datasheets & Errata
821054 Data Sheet Datasheet PDF 681 KB
821054 CODEC, Data Sheet Errata Datasheet Errata PDF 95 KB
Application Notes & White Papers
AN-408: 821054A CODEC & 821611/21 SLIC Line Card Solution Application Note PDF 388 KB
AN1003: Operation of the HC55185 Ringing SLIC & IDT821054 Evaluation Module Application Note PDF 1.22 MB
AN-340: CODEC, Hardware Ring Trip Function Application Note PDF 104 KB
PCN#: A-0410-02, Change IDT marking logo with new IDT gridless w Product Change Notice PDF 24 KB
PCN# : A-0610-02 ASAT China as Alternate Facility for CABGA/CVBGA/FPBGA/TQFP/PQFP Product Change Notice PDF 252 KB
A-0603-04 Transfer TQFP and PQFP from ASAT HK to ASAT China Product Change Notice PDF 164 KB
PCN A-0506-03; Packing Material Change Product Change Notice PDF 290 KB
PCN#: A-0412-04 - To comply with Pb-free labels - Green Products Product Change Notice PDF 80 KB
PCN#: A-0408-01Rev.1, To qualify new mold compound and die attac Product Change Notice PDF 523 KB
PCN#: A-0310-01, Green Products Product Change Notice PDF 26 KB
PCN# G-0206-08, Orientation of square PQFP & TQFP Product Change Notice PDF 150 KB
PCN# G-0203-05 Mold Compound Product Change Notice PDF 40 KB