Texas Instruments LMH1219 is a low-power, dual-input dual-output, adaptive equalizer with reclocker integration. It supports SMPTE video rates of up to 11.88 Gbps and IP of 10 GbE videos, enabling ultra HD video for 4K/8K applications. IN0's extended adaptive cable equalizer is designed to equalize data transmitted over 75 ohm coaxial cable and operates in a wide data rate range of 125 Mbps to 11.88 Gbps. The IN1's adaptive board tracking equalizer is compatible with the SFF-8431 and supports SMPTE and 10 GbE data rates.
Integrated relock attenuates high frequency jitter and provides optimal signal integrity. The high input jitter tolerance of the relock improves the timing margin. The lock has a built-in loop filter and operates without the need for a precision input reference clock. The distract-free eye monitor allows real-time measurement of serial data to simplify system debugging and speed up board startup.
The integration of 2:1 mux and 1:2 fan provides the flexibility of multiple video signals. The output driver provides programmable weight loss to compensate the circuit board for trace losses on its output. The integrated return loss network meets strict SMPTE standards and is suitable for all data rates. The typical power consumption of LMH1219 is 250 mW. With no input signal, the power is further reduced to 27mw.
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