MAX3814CHJ+

Specialized Overview

The MAX3814CHJ+ is a four-channel TMDS equalizer and driver IC designed for DVI/HDMI applications. It compensates for FR-4 board microstrip and cable losses up to 15dB at 825MHz, supporting data rates from 0.25Gbps to 1.65Gbps. The device operates on a single 3.3V supply with a typical current consumption of 110mA. It features less than 0.2UI P-P residual jitter at 1.65Gbps for channel losses between 0 and 15dB. The output provides a differential amplitude of 1.05VP-P. Input terminations are 50Ω each side to VCC ±10%. The component is housed in a 32-pin TQFP package and functions within an operating temperature range of 0°C to +70°C.

Specialized Feature Summary

• Compensates for high-frequency attenuation in FR-4 traces and copper cables to maintain signal integrity.
• Provides selectable output drive currents via the LEVEL pin to support standard or back-terminated configurations.
• Includes an ENABLE pin to switch between normal operation and low-power shutdown modes.

Specialized Applications

• Laptop PC TMDS Equalizer and Driver
• Docking Station TMDS Equalizer and Driver
• Cable TMDS Equalizer

Specialized Procurement Notes

Verify the specific ordering suffix against official documentation to confirm lead-free status and compliance requirements. Confirm that the 32-pin TQFP package dimensions match the target PCB land pattern. Ensure the design supports the required 3.3V power supply and thermal dissipation capabilities for the specified operating temperature range.

Specialized Selection Notes

Select this component when designing systems requiring fixed equalization for DVI/HDMI signals up to 1.65Gbps. It is suitable for scenarios where board trace loss or cable attenuation exceeds acceptable limits without active compensation. Verify compatibility with HDMI 1.3 standards and ensure the layout accommodates the necessary 200Ω back termination resistors if utilizing the higher current mode.

Specialized Part Context

This part belongs to the Maxim Integrated MAX3814 series of TMDS equalizers and drivers. It is specifically engineered to address signal degradation in digital video interfaces. The device integrates limiting amplifiers and drivers into a single package, simplifying the design of high-speed display transmission channels compared to discrete solutions.

Specialized Replacement Considerations

MS3814 is documented as a compatible replacement for the MAX3814 family.