PEB22320

The Primary Rate Access Clock Generator and Transceiver PRACT PEB22320 (PEB 22320) is a monolithic CMOS device which implements the analog receive and transmit line interface functions to primary rate PCM carriers. PEB22320 may be programmed or hard wired to operate in 1.544-Mbit/s (T1) or 2.048-Mbit/s (CEPT) carrier systems.

The PRACT PEB22320 recovers clock and data using an adaptively controlled receiver threshold. PEB22320 will meet the requirement of CCITT I.431 and Bellcore TR-NWT-000499 Issue 5, December 1993 (Transport System Generic Requirements) in case of pulse shape, jitter tolerance and jitter transfer characteristic.

PEB22320 is specially designed line interface circuits simplify the tedious task of protecting the device against overvoltage damage while still meeting the return loss requirements.

The PRACT PEB22320 is suitable for use in a wide range of voice and data applications such as for connections of digital switches and PBX's to host computers, for implementations of primary ISDN subscriber loops as well as for terminal applications. The maximum range of PEB22320 is determined by the maximum allowable attenuation.

In the T1 case the PRACT's power consumption of PEB22320 is mainly determined by the line length and type of the cable.