PI3HDMI301ZLE

Specialized Overview

The PI3HDMI301ZLE is a 3:1 active switch for HDMI signals with optimized equalization, designed for high-resolution video networks based on DVI/HDMI standards. It supports TMDS signal processing with a maximum bandwidth of 2.5 Gbps per channel, enabling 36-bit Deep Color support. The device operates at a supply voltage (VDD) of 3.3V ±5% and features integrated 50-ohm termination resistors at each high-speed input. It provides configurable output swing control, pre-emphasis, and de-emphasis levels to enhance signal integrity over long cable lengths up to 25 meters. The component includes 8kV contact ESD protection and handles sideband signals (SCL, SDA, HPD) with 5V tolerance.

Specialized Feature Summary

• Integrated optimized equalization eliminates deterministic jitter from long cables without requiring multiple settings.
• Configurable output buffer controls allow adjustment of output swing and pre-emphasis/de-emphasis levels.
• Supports hot insertion via dedicated SCL, SDA, and HPD pins with 5V tolerance on all sideband signals.
• Includes internal 50-ohm termination resistors and HDCP reset circuitry for quick communication during port switching.

Specialized Applications

• Consumer video networks connecting multiple sources like PCs, DVD players, or set-top boxes to a display.
• High-resolution video receiver circuits requiring signal switching between multiple DVI/HDMI components.
• Video distribution systems utilizing cable lengths up to 25 meters where signal integrity enhancement is critical.

Specialized Procurement Notes

Verify the specific ordering suffix 'ZLE' corresponds to the 64-pin TQFN package configuration as documented in the datasheet. Confirm that the procurement source provides the Pb-free and Green compliant version indicated by the 'E' suffix. Ensure compatibility with the recommended power supply decoupling requirements involving 0.1μF capacitors per VDD pin.

Specialized Selection Notes

Select this component when a 3:1 active switch is required for HDMI/DVI applications supporting up to 2.5 Gbps data rates. It is suitable for designs needing integrated equalization to support cable lengths up to 25 meters without external EQ circuits. Consider the 64-pin TQFN package if space constraints favor surface-mount technology over the 80-pin LQFP option.

Specialized Part Context

This part belongs to the PI3HDMI301 series of active HDMI switches manufactured by Pericom Semiconductor, now part of Diodes Incorporated. The ZLE suffix specifically denotes the 64-pin Thin Quad Flat Package (TQFN) variant. It is distinct from other models in the family that may offer different channel counts or packaging options.

Specialized Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Designers should verify pinout and electrical parameter compatibility before considering alternative vendors or newer revisions within the same product family.

Specialized FAQ

What is the maximum cable length supported by the optimized equalization?

The optimized equalization setting can support HDMI cable lengths from 1 meter to 20 meters. For specific applications requiring 25-meter cables, the equalization can be adjusted to 16dB.

Which pins support hot insertion?

Only the SCL, SDA, and HPD pins support hot insertion. These pins handle the sideband signals required for communication and status detection.

How is the default equalization configured?

The default setting uses Optimized Equalization on all high-speed data inputs, which is achieved by setting both EQ_S1 and EQ_S0 logic states to High (1). This single setting passes HDMI jitter tests for cable lengths between 1 and 20 meters.