描述 Description

The MAX9276B/MAX9280B gigabit multimedia serial link (GMSL) deserializers receive data from a GMSL serializer over 50Ω coax or 100Ω shielded twisted-pair (STP) cable and output deserialized data on the LVCMOS outputs. The MAX9280B has HDCP content protection but otherwise is the same as the MAX9276B. The deserializers pair with any GMSL serializer capable of coax output including the MAX9293 HDMI/MHL serializer. When programmed for STP input they are backward compatible with any GMSL serializer. The audio channel supports L-PCM I2S stereo and up to eight channels of L-PCM in TDM mode. Sample rates of 32kHz to 192kHz are supported with sample depth up to 32 bits. The embedded control channel operates at 9.6kbps to 1Mbps in UART-to-UART and UART-to-I2C modes, and up to 1Mbps in I2C-to-I2C mode. Using the control channel, a μC can program serializer, deserializer, and peripheral device registers at any time, independent of video timing, and manage HDCP operation (MAX9280B). Two GPIO ports are included, allowing display powerup and switching of the backlight among other uses. A continuously sampled GPI input supports touch-screen controller interrupt requests in display applications. For use with longer cables, the deserializers have a programmable cable equalizer. Programmable spread spectrum is available on the parallel output. The serial input meets ISO 10605 and IEC 61000-4-2 ESD standards. The core supply is 3.0V to 3.6V and the I/O supply is 1.7V to 3.6V. The devices are in lead-free, 56-pin, 8mm x 8mm TQFN/SWTQFN packages with exposed pad and 0.5mm lead pitch.

特性 Features

? 理想用于高清視頻應(yīng)用
? 可使用低成本50Ω同軸電纜和FAKRA連接器或100Ω STP
? 104MHz高帶寬模式支持1920x720p/60Hz、24位彩色顯示
? 電纜均衡，全速工作時傳輸距離長達15m
? 高達192kHz采樣率和32位采樣深度，支持7.1通道HD音頻
? 音頻時鐘取自于音頻源或音頻接收器
? 顏色查找表，用于γ修正
? CNTL[3:0]控制輸出
? 多種數(shù)據(jù)率，提高系統(tǒng)靈活性
? 串行碼率高達3.12Gbps
? 6.25MHz至104MHz像素時鐘
? UART、混合UART/I2C或I2C模式下，控制通道支持9.6kbps至1Mbps傳輸速率，帶時鐘展寬功能
? 降低EMI和屏蔽要求
? 可編程擴頻功能有效降低EMI
? 跟蹤輸入的擴展頻譜
? 高抗擾模式，最大程度上抑制控制通道噪聲
? 用于系統(tǒng)上電和驗證的外設(shè)功能
? 內(nèi)置PRBS檢測器，用于串行鏈路的BER測試
? 可編程選擇8個默認器件地址
? 2個專用GPIO端口
? 專用“Up/Down”GPI，用于觸摸屏中斷和其它功能
? 遠端/本地休眠模式喚醒
? 滿足嚴格的汽車和工業(yè)要求
? -40°C至+105°C工作溫度范圍
? ±10kV接觸放電和±15kV氣隙放電ESD保護， ISO 10605和IEC 61000-4-2

應(yīng)用 Application

? 高分辨率汽車導(dǎo)航
? 兆像素照相系統(tǒng)
? 后排座信息終端