CD22357A - Intersil Corporation

CD22357A CMOS Single-Chip/ Full-Feature PCM CODEC

The CD22354A and CD22357A are monolithic silicongate, double-poly CMOS integrated circuits containing the band-limiting filters and the companding A/D and D/A conversion circuits that conform to the AT&T D3/D4 specifications and CCITT recommendations. The CD22354A provides the AT&T µ-law and the CD22357A provides the CCITT A-law companding characteristic. Th.

Features

• Meets or Exceeds All AT&T D3/D4 Specifications and CCITT Recommendations
• Complete CODEC and Filtering Systems: No External Components for Sample-and-Hold and Auto-Zero Functions. Receive Output Filter with (SIN X)/X Correction and Additional 8kHz Suppression
• Variable Data Clocks - From 64kHz . . . . . . . . . . . . . . . . . . . . . 2.1MHz
• Receiver Includes Power-Up Click Filter
• TTL or CMOS-Compatible Logic
• ESD Protection on All Inputs and Outputs Description The CD22354A and CD22357A are monolithic silicongate, double-poly CMOS integrated circuits containing the band-limiting fil.