DS16EV5110 Video Equalizer for DVI, HDMI, and CAT5 Cables
National Semiconductor
Description
The DS16EV5110 is a 2.25 Gbps multi-channel equalizer optimized for video cable extension applications. It contains three Transition-Minimized Differential Signaling (TMDS) data channels and one clock channel as commonly found in DVI and HDMI cables. It provides compensation for skin-effect and dielectric losses, a common phenomenon when transmitting video on commercially available high definition video cables. The inputs and outputs fully support DVI and HDMI requirements and features programmable levels of input equalization. The programmable levels of equalization provide optimal signal boost and reduces inter-symbol interference. The device supports DC-coupled data paths providing a wider input common-mode voltage range. The wide input common-mode voltage range eliminates the need for external coupling capacitors, thereby reducing solution size and cost. The clock channel is optimized for clock rates of up to 225 MHz and features a signal detect circuit. To maximize noise immunity, the DS16EV5110 features a programmable loss of signal threshold. The threshold is adjustable through a Serial Management Bus (SMBus) interface. The DS16EV5110 also provides support for system power management via output enable controls. Additional controls are provided via the SMBus enabling customization and optimization for specific applications requirements. These controls include programmable features such as output amplitude and boost controls as well as system level diagnostics.
Features
8 levels of equalization settable by 3 pins or through the SMBus interface
DC-Coupled inputs and outputs
Optimized for operation from 250 Mbps to 2.25 Gbps in support of UXGA, 480 I/P, 720 I/P, 1080 I, and 1080 P with 8, 10, and 12–bit Color Depth Resolutions
Two DS16EV5110 devices support DVI/HDMI Dual Link
DVI 1.0, HDMI 1.2a, and HDMI 1.3 Compatible TMDS Interface
Clock channel signal detect (LOS)
Enable for power savings standby mode
Serial Management Bus (SMBus) provides control of boost, output amplitude, enable, and clock channel signal detect threshold
Low power consumption: 475mW (Typical)
0.13 UI total jitter at 1.65 Gbps including cable
Single 3.3V power supply
Small 7mm x 7mm, 48-pin leadless LLP package
-40°C to +85°C operating temperature range
Extends TMDS cable reach over:
> 40 meters 24 AWG DVI Cable
> 20 meters 28 AWG DVI Cable
> 20 meters Cat5/Cat5e/Cat6 cables
> 20 meters at 2.25 Gbps over 28 AWG HDMI cables
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