DS16EV5110A_15 Datasheet, PDF (14/25 Pages) Texas Instruments – Video Equalizer (3D+C) for DVI, HDMI Source/Repeater/Sink Applications

DS16EV5110A
SNLS301C – JULY 2008 – REVISED APRIL 2013
www.ti.com
DVI 1.0 AND HDMI V1.2a APPLICATIONS
A single DS16EV5110A can be used to implement cable extension solutions with various resolutions and screen
refresh rates. The range of digital serial rates supported is between 250 Mbps and 1.65 Gbps. For applications
requiring ultra-high resolution for DVI applications (e.g., QXGA and WQXGA), a “dual link” TMDS interface is
required. This is easily configured by using two DS16EV5110A devices as shown in Figure 8.
Note the recommended connections between LVCMOS control pins. This provides the Automatic Enable feature
for both devices based on the one active clock channel. In many applications the SMBus is not required (device
is pin controlled), for this application simply leave the three SMBus pins open. SDC and SDA are internally pulled
High, and CS is internally pulled Low, thus the SMBus is in the disabled state.
D0
D0
D1
D1
DS16EV5110A
D2
D2
CLK
CS SD EN
CLK
D3
EN SD CS
D3
D4
D4
DS16EV5110A
D5
D5
CLK
CLK
Figure 8. Connection in Dual Link Application
HDMI V1.3 APPLICATION
The DS16EV5110A can reliably extend operation to distances greater than 20 meters of 28 AWG HDMI cable at
2.25 Gbps, thereby supporting HDMI v1.3 for 1080p HDTV resolution with 12-bit color depth. Please note that
the Electrical Characteristics specified in this document have not been tested for and are not ensured for 2.25
Gbps operation.
DC COUPLED DATA PATHS AND DVI/HDMI COMPLIANCE
The DS16EV5110A is designed to support TMDS differential pairs with DC coupled transmission lines. It
contains integrated termination resistors (50Ω), pulled up to VDD at the input stage, and open collector outputs
for DVI / HDMI for signal swing.
CABLE SELECTION
At higher frequencies, longer cable lengths produce greater losses due to the skin effect. The quality of the cable
with respect to conductor wire gauge and shielding heavily influences performance. Thicker conductors have
lower signal degradation per unit length. In nearly all applications, the DS16EV5110A equalization can be set to
0x04, and equalize up to 22 dB skin effect loss for all input cable configurations at all data rates, without
degrading signal integrity.
28 AWG STP DVI / HDMI CABLES RECOMMENDED BOOST SETTINGS
The following table presents the recommended boost control settings for various data rates and cable lengths for
28 AWG DVI/HDMI compliant configurations. Boost setting maybe done via the three BST[2:0] pins or via the
respective register values.
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