1. 一般的描述
LT8618EX是Lontium基于cleardedge?技术的低功耗HDMI发射器。它支持24位色深HDMI 1.4(高清晰度多媒体接口)规范。它们与Lontium的第一代HDMI发射机LT8618完全向后兼容，并且与SilICon Image SiI9030和analogx ANX9030发射机的引脚兼容。LT8618EX是一款高性能、低功耗的器件，专为高清数码相机、高清数码摄像机、高清pmp /MP4播放器、手机等而设计。正常工作功率小于100mA播放24bit 1080P内容，待机功率小于2mA。
2. 特性
?HDMI 1.4兼容的HDCP发射机
?支持高于340Mpix/秒的像素率
?支持一位音频(DSD, SACD)
?1080P时的低功耗为180mW
?待机功率小于2mA
?引脚兼容SiI9030,ANX9030和CAT6612
?固件可编程输出摆动和预强调
?完全硬件控制或可选软件控制的HDCP操作
?预编程的HDCP密钥集或外部EEPROM存储密钥集
?集成CEC控制器
集成EDID阴影RAM和嵌入式EDID
?5v容错DDC接口
?灵活的视频接口支持DVD和高清MPEG解码器
?24位RGB/YCbCr 4:4:4
?16/20/24位YCbCr 4:2:2
?8/10/12位YCbCr 4:2:2 (ITU.601和656)
?12位，双边缘时钟输入模式
?ycbcr - rgb色彩空间转换
?输入时钟分频器(0.5x, 2x, 4x)
?高端数字音频接口
?4 x I2S输入接受杜比数字，dvd音频输入(2-ch)。192khz, 8ch。192千赫)
?S/PDIF输入支持PCM，杜比数字，DTS数字音频传输(32-96 kHz Fs采样率)
?IEC60958或IEC61937兼容。
?灵活，可编程的I2S通道映射
?2:1和4:1降采样处理96khz和192khz音频流
?完全集成的HDCP认证硬件
?主I2C接口用于DDC连接，简化了板布局，降低了成本
?灵活的电源管理
3.应用程序
?DVD、双相障碍
?IPTV盒
?车载录像机
?高清资源
1. General Description
The LT8618EX is Lontium’s low power version HDMI transmitter based on ClearedEdge? technology. It supports the 24-bit color depth HDMI 1.4 (High Definition Multimedia Interface) specification. They are fully backwoard compatible with Lontium’s first generation HDMI transmitter LT8618, and al so pin compatible with Silicon Image SiI9030 and Analogix ANX9030 transmitters. LT8618EX is a high performance, low power part that are specifically designed for HD-Digital cameras, HD-Digital Video Cameras, HD-PMP/MP4 Players, Cell phones, etc. The normal operation power is less than 100mA playing 24bit 1080P content, and the standby power is less than 2mA.
2. Features
? HDMI 1.4 compliant transmitter with HDCP
? Support pixel rates above 340Mpix/second
? Support One Bit Audio (DSD, SACD)
? Low power consumption of 180mW at 1080P
? Less than 2mA standby power
? Pin compatible with SiI9030，ANX9030 and CAT6612
? Firmware programmable output swing and pre-emphasis
? 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
? Flexible video interface supports DVD and HD MPEG decoders
? 24-bit RGB/YCbCr 4:4:4
? 16/20/24-bit YCbCr 4:2:2
? 8/10/12-bit YCbCr 4:2:2 (ITU.601 and 656)
? 12-bit, dual-edge clocking input modes
? YCbCr-to-RGB color space conversion
? Input clock divider (0.5x, 2x, 4x )
? High-End digital audio interface
? 4 x I2S inputs accept Dolby Digital, DVD-Audio input (2-ch. 192 kHz, 8-ch. 192 kHz)
? S/PDIF input supports PCM, Dolby Digital, DTS digital audio transmission (32-96 kHz Fs sample rate)
? IEC60958 or IEC61937 compatible.
? Flexible, programmable I2S channel mapping
? 2:1 and 4:1 Down-sampling to handle 96 kHz and 192 kHz audio streams
? Fully integrated HDCP authentication hardware
? Master I2C interface for DDC connection simplifies board layout and lowers cost
? Flexible power management
3. APPLICATIONS
? DVD,BD
? IPTV Box
? Car Video Recorder
? HD Sources
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