CD22354A

Semiconductor February 1999 T UCT ROD ACEMEN 47 P E 7 T L 7 E P 42 OL RE 00-4 m OBS ENDED 8 1 s.co MM ions ECO pplicat p@harri R O A N ral ntap Cent : ce Call or email CD22354A, CD22357A CMOS Single-Chip, Full-Feature PCM CODEC TO SLIC [ /Title (CD22 354A, CD223 57A) /Subject (CMO S SingleChip, FullFeature PCM CODE C) / Author () /Keywords (Harris Semiconductor, RSLIC 18, Telecom, SLICs, SLACs , Telephone, Telephony, WLL, Wireless Local Loop, 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 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. The primary applications for the CD22354A and CD22357A are in telephone systems. These circuits perform the analog and digital conversions between the subscriber loop and the PCM highway in a digital swi...