مدار مجتمع (آی سی) آی‌سی خطی (آنالوگ) پردازش ویدئو

Product Attributes

Introduction

The AD8195 is an HDMI/DVI buffer featuring equalized TMDS inputs and preemphasized TMDS outputs, ideal for systems with long cable runs. The AD8195 includes bidirectional buffering for the DDC bus and bidirectional buffering with integrated pull-up resistors for the CEC bus. The DDC and CEC buffers are powered independently of the TMDS buffers so that DDC/ CEC functionality can be maintained when the system is powered off. The AD8195 meets all the requirements for sink tests as defined in Section 8 of the HDMI Compliance Test 1.3c. The AD8195 is specified to operate over the -40°C to +85°C temperature range.

Features

• 1 input, 1 output HDMI/DVI link
• Enables HDMI 1.3a-compliant front panel input
• 4 TMDS channels per link
• Supports 250 Mbps to 2.25 Gbps data rates
• Supports 25 MHz to 225 MHz pixel clocks
• Equalized inputs for operation with long HDMI cables (20 m at 2.25 Gbps)
• Preemphasized outputs
• Fully buffered unidirectional inputs/outputs
• 50 Ω on-chip terminations
• Low added jitter
• Transmitter disable feature
• Reduces power dissipation
• Disables input termination
• 3 auxiliary buffered channels per link
• Bidirectional buffered DDC lines (SDA and SCL)
• Bidirectional buffered CEC line with integrated pull-up resistors (27 kΩ)
• Independently powered from 5 V of HDMI input connector
• Logic level translation (3.3 V, 5 V)
• Input/output capacitance isolation
• Standards compatible: HDMI, DVI, HDCP, DDC, CEC
• 40-lead LFCSP_VQ package (6 mm×6 mm)

Applications

• Front panel buffer for advanced television (HDTV) sets