Description

The MAX9276B/MAX9280B gigabit multimedia serial link(GMSL) deserializers receive data from a GMSL serializerover 50Ω coax or 100Ω shielded twisted-pair (STP) cableand output deserialized data on the LVCMOS outputs.The MAX9280B has HDCP content protection but otherwiseis the same as the MAX9276B. The deserializers pairwith any GMSL serializer capable of coax output includingthe MAX9293 HDMI/MHL serializer. When programmedfor STP input they are backward compatible with anyGMSL serializer.The audio channel supports L-PCM I2S stereo and up toeight channels of L-PCM in TDM mode. Sample rates of32kHz to 192kHz are supported with sample depth up to32 bits. The embedded control channel operates at 9.6kbpsto 1Mbps in UART-to-UART and UART-to-I2C modes,and up to 1Mbps in I2C-to-I2C mode. Using the controlchannel, a µC can program serializer, deserializer, andperipheral device registers at any time, independent ofvideo timing, and manage HDCP operation (MAX9280B).Two GPIO ports are included, allowing display powerupand switching of the backlight among other uses. Acontinuously sampled GPI input supports touch-screencontroller interrupt requests in display applications.For use with longer cables, the deserializers have aprogrammable cable equalizer. Programmable spreadspectrum is available on the parallel output. The serialinput meets ISO 10605 and IEC 61000-4-2 ESDstandards. The core supply is 3.0V to 3.6V and the I/Osupply 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 leadpitch.ApplicationsHigh-Resolution Automotive NavigationMegapixel Camera SystemsRear-Seat Infotainment