Diodes Incorporated has released two new quad-channel HDMI ReDrivers aimed at compact, high-resolution applications where signal integrity and power efficiency are critical. The PI3HDX12311 and PI3HDX6311 are designed to support HDMI 2.1 and HDMI 2.0, respectively, offering up to 12Gbps per channel in a package that measures just 2.85mm × 4.5mm.
What sets these devices apart is the inclusion of a DDC Listener, a built-in feature that detects HDMI link status and automatically adjusts performance to match the data rate and signalling mode. This removes the need for manual tuning and helps cut down development time.
Two Modes, One Footprint
Depending on the HDMI version in use, the ReDrivers switch between two operational styles. In HDMI 1.4 applications, they work as swing-limited ReDrivers, delivering compliant output levels at the connector. For HDMI 2.0 and 2.1 systems, the devices function in linear mode, acting as transparent trace cancellers that maintain signal quality without interfering with link training.
Both parts also support dual-mode DisplayPort (DP++) output, eliminating the need for separate level-shifting components in many designs. Inputs and outputs can be AC- or DC-coupled, giving engineers flexibility when designing across multiple standards.
Designed for Efficiency
The PI3HDX12311 reaches 12Gbps data rates and dissipates just 726mW at maximum output swing. The PI3HDX6311 supports up to 6Gbps for HDMI 2.0, making it a solid choice for designs that don’t require full 8K capability. Both use pin-strap configuration for EQ, swing, and flat gain settings, no I2C or SPI required.
Where You’ll See Them
Applications include:
- Laptops and desktops handling high-resolution external displays
- Gaming consoles targeting 4K and 8K output
- Active HDMI cables, especially in portable or embedded environments
- Docking stations, KVM switches, and digital signage
The compact X1-QFN2845-32 package is ideal for space-limited boards, and both parts operate across -40°C to +70°C, making them suitable for consumer and commercial gear alike.
Pricing and Availability
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Final Thoughts
As display resolutions and bandwidth demands continue to rise, getting clean, spec-compliant HDMI signals across longer traces and cables is becoming more challenging. Diodes’ latest ReDrivers are engineered to address exactly that, improving signal integrity, saving board space, and reducing overall power draw.
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