Description
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.
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.
CD22354A Datasheet
