STDVE003A Datasheet, PDF (1/3 Pages) STMicroelectronics – 3:1 TMDS / HDMI signal equalizer

STDVE003A
3:1 TMDS / HDMI signal equalizer
Data Brief
Features
■ Compatible with HDMI v1.3 digital interface
■ Conforms to the TMDS voltage standard on
input and output channels
■ 340 MHz maximum clock speed operation
enabling up to 3.4 Gbps data rate per channel
■ Integrated open-drain I²C buffer for DDC lines
■ 5.3 V tolerant I²C I/O with 0 to 400 kHz
frequency
■ Ultra low capacitance of the channels
■ Equalizer regenerates the incoming attenuated
TMDS signal
■ Buffer drives the TMDS outputs over long PCB
track lengths
■ Very low output skew and jitter
■ Tight input thresholds reduce bit error rates
■ On-chip 50 Ω input termination
■ Integrated fail-safe feature sets outputs to
known state for un-driven inputs
■ Available in TQFP80 package footprint with
flow-through pin-out
■ -40°C to 85°C operating temperature range
■ Evaluation kit and samples are available
TQFP80
Description
The STDVE003A integrates a 4-channel 3.4 Gbps
TMDS equalizer and a 3:1 switch to select one of
the three HDMI ports. The three input HDMI ports
can be either external ports or internal sources.
High-speed data paths and flow-through pin-out
minimize internal device jitter and simplify board
layout. The equalizer overcomes ISI jitter effects
from lossy cables. The buffer/driver on the output
can drive the TMDS output signals over long
distances. In addition to this, STDVE003A
integrates the 50 Ω termination resistor on all
input channels to improve performance and
reduce board space. The device can be put in a
low-power mode by disabling the output current
drivers.
The STDVE003A is ideal for advanced HDTV
applications demanding HDMI deep colour (16-
bit) superior image quality. The switch preserves
the signal integrity to pass the stringent HDMI
compliance requirements.
Table 1. Device summary
Order code
Operating temperature
STDEV003A
-40°C to 85°C
Package
TQFP80
September 2007
Rev 1
For further information contact your local STMicroelectronics sales office.
Packaging
Tape and Reel
1/3
www.st.com
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