Intersil CD22354A
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.| Part No. | CD22354A |
|---|---|
| Datasheet | CD22354A Download |
| Manufacturer |  Intersil |
| Description | CMOS Single-Chip/ Full-Feature PCM CODEC |
| Buy | Stock & Price |
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
These circuits perform the analog and digital conversions between the subscriber loop and the PCM highway in a digital switching system. The functional block diagram is shown below. With flexible features, including synchronous and asynchronous operations and variable data rates, the CD22354A and CD22357A are ideally suited for PABX, central office switching system, digital telephones as well as other applications that require accurate A/D and D/A conversions and minimal conversion time.APPLICATIONS
● PABX●...
