The MAX3872ETJ+ is a multirate clock and data recovery with limiting amplifier in 32 pin TQFN package. It is a compact device for OC-3, OC-12, OC-24, OC-48, OC-48 with FEC SONET/SDH and gigabit Ethernet (1.25Gbps/2.5Gbps) applications. The fully integrated PLL recovers synchronous clock signal from serial NRZ data input without using an external reference clock. The input data is then retimed by recovered clock providing a clean data output. An additional serial input (SLBI±) is available for system loopback diagnostic testing. The device also includes loss of lock (active-low LOL) output. The MAX3872 contains vertical threshold control to compensate for optical noise due to EDFAs in DWDM transmission systems. It is used in SONET/SDH receivers and regenerators, add/drop multiplexers, digital cross connects, SONET/SDH test equipment, DWDM transmission systems & access networks.
- Supply voltage range from 3V to 3.6V and supply current of 175mA
- Operating temperature range from -40°C to 85°C
- Reference clock is not required for data acquisition
- Exceeds ANSI, ITU and Bellcore SONET/SDH jitter specifications
- Jitter transfer bandwidth of 80KHz (OC-3), 370KHz (OC-12) and 1500KHz (OC-48)
- 10mVP-P input sensitivity without threshold adjust
- 0.65UIP-P high frequency jitter tolerance and 2.7mUIRMS jitter generation
- Input threshold adjust range of ±170mV
- Clock holdover capability using frequency selectable reference clock
- Serial loopback input available for system diagnostic testing
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