STHDMI002A Datasheet, PDF (1/26 Pages) STMicroelectronics – Wide bandwidth, 2 to 1 HDMI switch with single enable

STHDMI002A
Wide bandwidth, 2 to 1 HDMI switch with single enable
Features
■ Compatible with HDMI v1.2, DVI v1.0 digital
interfaces
■ 165MHz speed operation supports all video
formats up to 1080p and SXGA (1280 x 1024
at 75Hz)
■ Data rate per channel for UXGA: 1.65Gbps
TQFP48
■ Low R_ON: 5.5 Ω(typ)
■ V_CC operating range: 3.135V to 3.465V
■ Low current consumption: 20µA
■ ESD human body model HBM Voltage:
– ±2KV for all I/Os
■ Channel ON capacitance: 6pF (typ)
■ Switching speed: 9ns
■ Near-zero propagation delay: 250ps
■ Low crosstalk: -32dB at 825MHz
■ Bit-to-bit skew: 200ps
■ Very low ground bounce in flow through mode
■ Data and control inputs provide an undershoot
clamp diode
■ Wide bandwidth minimizes skew and jitter
■ Hot insertion capable
■ Isolated Digital Display Control (DDC) bus for
unused ports
■ 5V tolerance to all DDC and HPD_SINK inputs
■ Supports bi-directional operation
■ Available in the TQFP48 package
■ –40°C to 85°C operating temperature range
Description
The STHDMI002A is a differential Single Pole
Double Throw (SPDT) 2 to 1, low Ron,
bi-directional HDMI switch designed for advanced
TV applications supporting HDMI/DVI which
demand high definition superior image quality.
The differential signal from the 2 ports of HDMI is
multiplexed through the switch to form a single
output HDMI channel going to the HDMI receiver
while the unselected output goes to the high-Z
state.
It is designed for very low cross-talk, low bit-to-bit
skew, high channel-to-channel noise isolation and
low I/O capacitance. The switch offers very little or
practically no attenuation of the high-speed
signals at the outputs, thus preserving the signal
integrity to pass stringent requirements.
The STHDMI002A also includes the DDC as well
as the HPD line switching. The pin layout is
optimized for easy PCB routing to the HDMI
connector and HDMI receivers.
The maximum DVI/HDMI data rate of 1.65Gbps
provides the resolution required by the advanced
HDTV and PC graphics.
Applications
■ Advanced TVs
■ Front projectors
■ LCD TVs
■ PDPs
■ LCD monitors
■ Notebook PCs
Advantages
STHDMI002A provides the ability to switch a
single source output to various display devices or
switch video display devices between multiple
sources. It reduces the overall BOM costs by
eliminating the need for more costly multi input-
output controllers.
■ STB and DVD players
October 2006
Rev 1
1/26
www.st.com
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