Telecoms, Datacoms, Wireless, IoT


Line interface transceiver chip for E3, DS3 and STS-1

28 February 2001 Telecoms, Datacoms, Wireless, IoT

TDK Semiconductor line interface transceiver for E3, DS3 and STS-1 applications operates at both 3,3 and 5 V. It consumes less than 110 mA of supply current.

Designated the 78P2241B, the single chip IC adds a line-code violation (LCV) detector to the feature set first available with the company's 78P2241. Other features include a clock recovery and transmitter pulse shaping function for applications using 75 coaxial cable at distances up to 335 m and speeds up to 51,84 Mbps. The receiver recovers clock and data from a B3ZS or HDB3 coded AMI signal. It can compensate for over 12 dB of cable and 6 dB of flat loss. The transmitter generates a signal that meets the ANSI T1.102-1993 and ITU-T G.703 pulse shape specifications.

The 78P2241B is pin and functionally compatible to TDK Semiconductor's 78P2241, 78P7200L and 78P7200. It comes in 28-lead PLCC or 48-lead TQFP packages.



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