STDVE001A Datasheet, PDF (1/49 Pages) STMicroelectronics – Adaptive single 3.4 Gbps TMDS/HDMI signal equalizer

STDVE001A
Adaptive single 3.4 Gbps TMDS/HDMI signal equalizer
Preliminary Data
Features
■ Compatible with the high-definition multimedia
interface (HDMI) v1.3 digital interface
■ Conforms to the transition minimized
differential signaling (TMDS) voltage standard
on input and output channels
■ 340 MHz maximum clock speed operation
supports all video formats with deep color at
maximum refresh rates
■ 3.4 Gbps data rate per channel
■ Fully automatic adaptive equalizer for cables
lengths up to 25 m
■ Single supply V_CC: 3.135 to 3.465 V
■ ESD: ±8 KV contact for all I/Os
■ Integrated open-drain I²C buffer for display
data channel (DDC)
■ 5.3 V tolerant DDC and HPD I/Os
■ Lock-up free operation of I²C bus
■ 0 to 400 kHz clock frequency for I²C bus
■ Low capacitance of all the channels
■ Equalizer regenerates the incoming attenu-
ated TMDS signal
■ Buffer drives the TMDS outputs over long PCB
track lengths
■ Low output skew and jitter
■ Tight input thresholds reduce bit error rates
■ On-chip selectable 50 Ω input termination
■ Low ground bounce
■ Data and control inputs provide undershoot
clamp diode
■ Evaluation kit is available
Table 1. Device summary
Order code
Operating temperature
STDVE001ABTR
STDVE001AQTR
-40°C to 85°C
-40°C to 85°C
TQFP48
QFN48
Description
The STDVE001A integrates a 4-channel 3.4 Gbps
TMDS equalizer. High-speed data paths and flow-
through pinout minimize the internal device jitter
and simplify the board layout.
The equalizer overcomes the intersymbol
interference (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, STDVE001A integrates the 50 Ω
termination resistor on all the input channels to
improve performance and reduce board space.
The device can be placed in a low-power mode by
disabling the output current drivers. The
STDVE001A is ideal for advanced TV and STB
applications supporting HDMI/DVI standard. The
differential signal from the HDMI/DVI ports can be
routed through the STDVE001A to guarantee
good signal quality at the HDMI receiver.
Designed for very low skew, jitter and low I/O
capacitance, the switch preserves the signal
integrity to pass the stringent HDMI compliance
requirements.
Package
TQFP48
QFN48
Packaging
Tape and reel
Tape and reel
July 2008
Rev 2
This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to
change without notice.
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