MAX3814CHJ+T

MAXIM INTEGRATED PRODUCTS  MAX3814CHJ+T  芯片, HDMI, DVI, 显示器端口

The is a DVI/HDMI TMDS FR-4 and cable equalizer/driver in 32 pin TQFP package. The MAX3814 TMDS EQ/driver IC compensates for FR-4 and cable losses up to the DVI/HDMI transmit connector and provides a fully compliant DVI/HDMI TMDS output. It is used in DVI/HDMI cable applications to extend reach and improve jitter margin of cable channels at the receive-side connector. The on-chip TMDS driver operates at a standard current level for implementing a typical DVI/HDMI non back terminated transmitter as well as a 50% higher current mode for using a 200 ohm back termination resistor non matching to achieve a 10dB return loss. Typical DVI/HDMI output drivers contribute to reflection problems between the connector and a typical high impedance open DVI/HDMI Tx output. The selectable output current LEVEL pin gives the option of partial back termination to mitigate the reflection problem effectively while keeping common-mode offset to a minimum.

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Supply voltage range is 3V to 3.6V

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Operating temperature range from 0°C to 70°C

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Equalizes FR-4 board microstrip and cable HF losses up to 15dB at 825MHz at 0.25Gbps to 1.65Gbps

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Compatible with HDMI 1.3

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Less than 0.2UIP-P residual jitter at 1.65Gbps for 0 to 15dB channel loss at 825MHz

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Input terminations is 50 ohm each side to VCC ±10%

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Output of driver is a fully DVI/HDMI TMDS compatible cable driver

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Output amplitude is 1.05VP-P differential

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Enable pin to select normal operation or power down mode