1. 一般的描述

LT8522EX是Lontium公司的矩陣開關芯片，基于cleararedge?Technology，支持兩種輸入(VGA和HDMI)和兩種輸出(VGA和HDMI)。

HDMI輸入接口符合HDMI 1.4 (High Definition Multimedia interface)規范。它還可以支持雙模DP與HDMI接口。為了向后兼容，這個矩陣開關還包括兩個高性能模擬接口(VGA輸入和VGA輸出)。它有兩個高質量的數字音頻接口(音頻輸入和音頻輸出)，支持8通道音頻。

LT8522EX采用100針TQFP封裝，工作溫度范圍為-40℃至+85℃。

2.特性

?直接接口到DVI 1.0和HDMI V1.4發射器

?支持雙模式DP在同一引腳與HDMI

?支持高達4kx2k分辨率

?多個像素格式:RGB 6/8/10/12位每個組件(bpc);YCbCr 422/ 4444 8/10/12 bpc

?DVI最高可達1.65Gbps, HDMI V1.4最高可達3.4Gbps

HDCP解密和加密

?片上VGA HDMI EDID陰影

?高輸入靈敏度，差分輸入電平低至150mV

?接收端均衡高達12dB

?自動丟失信號檢測

?高抖動容忍高達0.7UI

?外部IIC從機配置接口

?主控I2C接口，實現DDC連接，簡化單板布局，降低成本

?嵌入式音頻PCM TX和RX，以及SPDIF TX

?廣泛的電源管理，節省電力

支持高達UXGA和1080p芯片DAC的模擬視頻輸出

3.應用程序

?矩陣開關盒

?VGA到HDMI轉換器

?HDMI到VGA轉換器

?等。

1. General Description

The LT8522EX is Lontium’s matrix switch chip that supports both two inputs (VGA and HDMI) and two outputs (VGA and HDMI) based on ClearEdge? Technology.
The HDMI input interface is compliant with the HDMI 1.4 (High Definition Multimedia Interface) specification. It can also support Dual-Mode DP with HDMI interface. For backward compatibility, this matrix switch also includes two high performance analog interfaces (VGA input and VGA output). It has two high quality digital audio interfaces (audio input and audio output) that support 8-channel audio.
The LT8522EX is offered in a 100-pin TQFP package, with operating temperature range of -40℃ to +85℃.

2.Features

? Direct interface to DVI 1.0 and HDMI V1.4 transmitter
? Support Dual-Mode DP on the same pins with HDMI
? Support resolution up to 4kx2k
? Multiple pixel formats: RGB 6/8/10/12 bit per component (bpc); YCbCr 422/444 8/10/12 bpc
? Compliance with DVI up to 1.65Gbps and HDMI V1.4 up to 3.4Gbps
? HDCP decryption and encryption
? On-chip VGA HDMI EDID shadows
? High input sensitivity, with differential input level down to 150mV
? Receiver side equalization up to 12dB
? Auto Loss of Signal detection
? High jitter tolerance up to 0.7UI
? External IIC slave configuration interface
? Master I2C interface for DDC connection simplifies board layout and lowers cost
? Embedded  audio PCM TX and RX, and SPDIF TX
? Extensive power management for power savings
? Supports analogue video output up to UXGA and 1080p on chip DAC

3.Applications

? Matrix switch box
? VGA to HDMI converter
? HDMI to VGA converter
? Etc.

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