MAX3814CHJ+T

The MAX3814CHJ+T 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.

• Supply voltage range is 3V to 3.6V
• Operating temperature range from 0°C to 70°C
• Equalizes FR-4 board microstrip and cable HF losses up to 15dB at 825MHz at 0.25Gbps to 1.65Gbps
• Compatible with HDMI 1.3
• Less than 0.2UIP-P residual jitter at 1.65Gbps for 0 to 15dB channel loss at 825MHz
• Input terminations is 50 ohm (each side to VCC) ±10%
• Output of driver is a fully DVI/HDMI TMDS compatible cable driver
• Output amplitude is 1.05VP-P differential
• Enable pin to select normal operation or power down mode

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Communications & Networking, Portable Devices

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