Datasheet

TMDS251
SLLS852A –AUGUST 2007– REVISED JULY 2011 www.ti.com
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
DESCRIPTION CONTINUED
The TMDS251 provides two levels of receiver input equalization for different ranges of cable lengths. Each
TMDS receiver owns frequency responsive equalization circuits. When EQ sets low, the receiver supports the
input connection in short range HDMI cables. When EQ sets high, the receiver supports the input connection in
long range HDMI cables. The TMDS251 supports power saving operation. When a system is under standby
mode and there is no digital audio/visual content from a connected source, the 3.3-V supply voltage, V
CC
, can be
powered off to minimize power consumption from the TMDS inputs, outputs, and internal switching circuits. The
HPD, DDC, and source selection circuits are powered up by the 5-V supply voltage, V
DD
, to maintain the system
hot plug detect response, the DDC link from the selected source to the sink under system standby operation. The
device is characterized for operation from 0°C to 70°C.
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