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LT87101DC
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1. Description

LT87101DC is a signal re-driver with DP input and Type-C output. DP signal quality is deeply-optimized and enhanced by performing cable or board trace loss compensation. The device complies with VESA DP1.2 specifications.
The input receiver of LT87101DC features a multi-level programmable linear equalizer, supporting up to 20dB loss compensation due to Inter-Symbol Interference (ISI).
The output transmitter re-drives the received signal with multi-level programmable output swing and up to 6dB de-emphasis.
Type-C operating is controlled by CC detect, CC logic and PD management unit. A high performance passive differential switch is also integrated to realize data channel exchange according to Type-C interface insert orientation. This relieves BOM cost and mobile system design complexity. The switch function is compliant with VESA DP Alternate Mode standard and support Pin Assignment C or D in different applications.
The LT87101DC is fabricated in advanced CMOS process and implemented in a small outline 5mmx5mm QFN40 package. This package is RoHS compliant and specified to operate from -40°C to +85°C.

2. Features

• Compliant to VESA DP1.2, Type-C r1.2, USB PD2.0 and DP Alt Mode v1.0 Standards
• Support Hot-Plug Detect for DP Input Interface
• Programmable Input Equalization
• Programmable Output Swing and De-emphasis
• USB Full-Featured, Orientation and Role Detection
• 3-level Current Ability Advertise for Type-C Power: USB Default, 1.5A@5V, 3A@5V
• SBU Data Path Control for DP Alt Mode
• Internal MCU and Flash for Online Firmware Upgrade
• Support External I2C Debug
• 1.8V/3.3V Power Supply
• Packaged in 5mmx5mm QFN40
3. Applications

• Smartphone, Tablet and Other Mobile Devices
• VR/AR Eco-System and Home Entertainment
• PC, Notebook, All-in-Ones Computer and Docking

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