LT8522EX矩阵开关芯片,支持两种输入和输出VGA和HDMI

1. 一般的描述

LT8522EX是Lontium公司的矩阵开关芯片，基于cleararedgeÔTechnology，支持两种输入(VGA和HDMI)和两种输出(VGA和HDMI)。

HDMI输入接口符合HDMI 1.4 (High Definition Multimedia interface)规范。它还可以支持双模DP与HDMI接口。为了向后兼容，这个矩阵开关还包括两个模拟接口(VGA输入和VGA输出)。它有两个高质量的数字音频接口(音频输入和音频输出)，支持8通道音频。

LT8522EX采用100针TQFP封装，工作温度范围为-40℃至+85℃。

2.特性

•直接接口到DVI 1.0和HDMI V1.4

•支持双模式DP在同一引脚与HDMI

•支持高达4kx2k分辨率

•多个像素格式:RGB 6/8/10/12位每个组件(bpc);YCbCr 422/ 4444 8/10/12 bpc

•DVI高可达1.65Gbps, HDMI V1.4高可达3.4Gbps

HDCP解密和加密

•片上VGA HDMI EDID阴影

•高输入灵敏度，差分输入电平低至150mV

•接收端均衡高达12dB

•自动丢失信号检测

•高抖动容忍高达0.7UI

•外部IIC从机配置接口

•主控I2C接口，实现DDC连接，简化单板布局，降低成本

•嵌入式音频PCM TX和RX，以及SPDIF TX

•广泛的电源管理，节省电力

支持高达UXGA和1080p芯片DAC的模拟视频输出

3.应用程序

•矩阵开关盒

•VGA到HDMI转换器

•HDMI到VGA转换器

•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 ClearEdgeÔ 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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