PI3HDMI341AR Datasheet, PDF (1/12 Pages) Pericom Semiconductor Corporation – 3:1 Active HDMI 1.3 Compatible Switch with Optimized Equalization for Enhanced Signal Integrity

ADVANCE INFORMATION - COMPANY CONFIDENTIAL
PI3HDMI341AR
3:1 Active HDMI 1.3 Compatible Switch with Optimized
Equalization for Enhanced Signal Integrity
Features
• Supply voltage, V_CC = 3.3V ±5%
• Each Port is compatible w/ DVI, HDMI 1.1, HDMI 1.2 or
HDMI 1.3 signals
• Supports both AC-coupled and DC-coupled inputs
• High Performance, up to 1.65 Gbps per channel
• Switching support for 3 side band signals
(SCL, SDA and HPD)
• 5V Tolerance on all side band signals
• SCL, SDA, and HPD pins are the only pins that can support
HOT INSERTION
• Integrated 50-ohm (±10%) termination resistors at each high
speed signal input
• Configurable output swing control
(500mV, 750mV, 1000mV)
• Configurable Pre-Emphasis levels
(0dB, 1.5dB, 3.5dB, & 6.0dB)
• Configurable De-Emphasis
(0dB, -3.5dB, -6.0dB, -9.5dB)
• Optimized Equalization
Single default setting will support all cable lengths
• ESD protection = 8kV (typical) on high-speed data channels
only
• Propagation delay ≤ 2ns
• High Impedance Outputs when disabled
• Packaging (Pb-free & Green): 80-contact LQFP (FF80)
Description
Pericom Semiconductor’s PI3HDMI341AR 3:1 active switch
circuit is targeted for high-resolution video networks that are
based on DVI/HDMI standards and TMDS signal processing.
The PI3HDMI341AR is an active 3 TMDS to 1 TMDS receiver
switch with Hi-Z outputs. The device receives differential signals
from selected video components and drives the video display unit.
It provides three controllable output swings that can be controlled
through a single bit. The allowable output swings are 500mV,
750mV and 1000mV. This solution also provides a unique
advanced pre-emphasis technique to increase rise and fall times
which are reduced during transmission across long distances.
Each complete HDMI/DVI channel also has slower speed, side
band signals, that are required to be switched. Pericom’s solution
provides a complete solution by integrating the side band switch
together with the high speed switch in a single solution. Using
Equalization at the input of each of the high speed channels,
Pericom can successfully eliminate deterministic jitter caused by
long cables from the source to the sink. The elimination of the
deterministic jitter allows the user to use much longer cables (up
to 25 meters).
The maximum DVI/HDMI Bandwidth of 1.65 Gbps provides 8-
bit deep color support, which is offered by HDMI revision 1.3.
Due to its active uni-directional feature, this switch is designed
for usage only for the video receiver’s side. For consumer
video networks, the device sits at the receiver’s side to switch
between multiple video components, such as PC, DVD, STB,
D-VHS, etc. The PI3HDMI341AR is the industry’s first active
DVI/HDMI switch compatible with HDMI 1.1, 1.2, and 1.3
which ensures transmitting high-bandwidth video streams from
video components to the display unit. The PI3HDMI341AR also
provides enhanced robust ESD/EOS protection of 8kV, which is
required by many consumer video networks today.
The Optimized Equalization provides the user a single optimal
setting that can provide HDMI compliance for all cable lengths:
2meter, 10meter, 15meter, and 20 meter. Pericom also offers the
ability to fine tune the equalization settings in situations where
cable length is known. For example, if 25meter length cable
isrequired, Pericom's solution can be adjusted to 16dB EQ to
accept 25meter cable length.
06-0340
1
P-1.1
12/20/06