LT86102SXE Datasheet R1.5
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Lontium Semiconductor
1. Features
HDMI 1.4/2.0 & DVI 1.0 specifications compliant
Support 3D video formats and 4Kx2K extended resolution
formats up to 3.4Gbps data rate and 4Kx2K @60Hz YCbCr
4:2:0 format
Adaptive equalization and de-emphasis to compensate long
cable losses
ODTs and calibration
Integrated HDCP repeater engine compliant with HDCP 1.4
specification
Fully hardware-controlled or optional software-controlled
HDCP operations
Pre-programmed HDCP key sets or external EEPROM
stored key sets
Integrated CEC controller
Integrated EDID shadow RAM and embedded EDID
5V-tolerant DDC interfaces
1 HDMI/DVI input port, up to 2 HDMI/DVI output ports
Unlimited cascading for more output ports or signal repeating
80-pin LQFP package
2. General Description
The LT86102SXE is Lontium’s 4rd generation 2-port
HDMI/DVI splitter which can repeat one HDMI/DVI signal to
2 HDMI/DVI signal sets, support up to 2 different HDMI/DVI
receiving/display terminals. Based on ClearEdge
technology, it supports up to 3.4Gbps data rate per channel,
compliant with the HDMI 1.4/2.0 & DVI 1.0 specifications.
The device incorporates a pair of ODTs, an adaptive
equalizer and a CDR circuit on each data channel of
receiver side, and a de-emphasis driver with optional back
terminations on each data channel of transmitter side. The
clock channel feeds a high-performance PLL that
regenerates a low jitter output clock for data recovery. The
LT86102SXE process HDCP decryption/encryption and
transmits the data to 2 HDMI/DVI ports.
The HDCP repeater engine in LT86102SXE handles all the
processing required by authentication, decryption and
encryption in hardware. This greatly reduces the external
MCU overhead and firmware complexity. However, for more
flexibility, the LT86102SXE also provides an option of
software-controlled mode in which HDCP operations are
entirely controlled by external MCU.
Pre-programmed HDCP key sets ease the use of HDCP
function and reduce the BOM cost. However, users can also
use external key sets through the ESCL/ESDA port. The
LT86102SXE integrates EDID shadow RAM for better
compatibility and reduced system complexity. Embedded
EDID is accessible to the upstream port before the real
EDID is loaded by the external MCU.
Fabricated in an advanced CMOS process, the
LT86102SXE is provided in a 80-lead LQFP package and is
specified over the -40°C to +85°C temperature range.
3. Applications
Multiple display/TV support
HDMI/DVI signal splitting/repeating
LT86102SXE
Figure 3.1 Application Diagram
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