MaxLinear XRT75R12
The XRT75R12 is a twelve channel, fully integrated Line Interface Unit (LIU) featuring MaxLinear’s R3 Technology (Reconfigurable, Relayless Redundancy) for E3, DS3, and STS-1 applications. The LIU incorporates 12 independent receivers, transmitters and jitter attenuators in a single 420 lead TBGA package. Each channel of the XRT75R12 can be independently configured to operate in E3 (34.368MHz), DS3 (44.736MHz) or STS-1 (51.84MHz).GENERAL DESCRIPTION
Each transmitter can be turned off and tri-stated for redundancy support or for conserving power. The XRT75R12’s differential receiver provides high noise interference margin and is able to receive data over 1000 feet of cable or with up to 12dB of cable attenuation. Each channel of the XRT75R12 incorporates an advanced crystal-less jitter attenuator that can be selected either in the transmit or receive path. The jitter attenuator performance meets the ETSI TBR-24 and Bellcore GR-499 specifications. The XRT75R12 provides a parallel microprocessor interface for programming and control. The XRT75R12 supports analog, remote and digital loop-backs. The device also has a built-in Pseudo Random Binary Sequence (PRBS) generator and detector with the ability to insert and detect a single bit error for diagnostic purposes.APPLICATIONS
● E3 and DS3 access equipment● DSLAMs
● Digital cross connect systems
● CSU and DSU equipment
● Routers
● Fiber optic terminals Ordering In...