EVALUATION KIT AVAILABLE MAX9291/MAX9293 3.12Gbps GMSL Serializers for Coax or STP Output and HDMI Input General Description Benefits and Features The MAX9291/MAX9293 GMSL serializers convert an Ideal for High-Definition Video Applications HDMI input to a gigabit multimedia serial link (GMSL) HDMI 1.4a Input with Integrated Input Equalizer, output for transmission of video, audio, and control DDC, and Input Termination Drives Low-Cost 50 Coax Cable and FAKRA signals over 15m or more of 50 coax or 100 shielded twisted-pair (STP) cable. The MAX9293 has HDCP Connectors or 100 STP Cable 104MHz High-Bandwidth Mode Supports content protection, but is otherwise the same as the MAX9291. The serializers pair with any GMSL 1920 x 720p/60Hz Display with 24-Bit Color Serializer Pre/Deemphasis Allows 15m Cable at deserializer capable of coax input. When programmed Full Speed for STP output, the serializers are backward compatible Up to 192kHz Sample Rate and 32-Bit Sample with any GMSL deserializer. The output amplitude is Depth for 7.1 Channel HD Audio programmable 100mV to 500mV single-ended (coax) or 100mV to 400mV differential (STP). Multiple Data Rates for System Flexibility 2 Up to 3.12Gbps Serial-Bit Rate The audio channel supports L-PCM I S stereo and up to 25MHz to 104MHz Pixel Clock eight channels of L-PCM in TDM mode. Sample rates of 9.6kbps to 1Mbps Control Channel in UART, Mixed 32kHz to 192kHz are supported with sample depth up to 2 2 UART/I C, or I C Mode with Clock-Stretch Capability 32 bits. Reduces EMI and Shielding Requirements The embedded control channel operates at 9.6kbps 2 Serial Output Programmable for 100mV to 500mV to 1Mbps in UART-to-UART and UART-to-I C modes, 2 2 Single-Ended or 100mV to 400mV Differential and up to 1Mbps in I C-to-I C mode. Using the control Programmable Spread Spectrum Reduces EMI channel, a C can program serializer, deserializer, and Tracks Spread Spectrum on Input peripheral device registers at any time, independent of High-Immunity Mode for Maximum Control- video timing and manage HDCP operation (MAX9293). Channel Noise Rejection A GPO output supports touch-screen controller interrupt requests from the remote end of the link. Peripheral Features for System Power-Up and Verification For use with longer cables, the serializers have Built-In PRBS Generator for BER Testing of the programmable pre/deemphasis. Programmable spread Serial Link spectrum is available on the serial output. The serial Programmable Choice of 9 Default Device output meets ISO 10605 and IEC 61000-4-2 ESD Addresses standards. The core supply is 1.8V and 3.3V and the I/O Dedicated Up/Down GPO for Touch-Screen supply is 1.7V to 3.6V. The package is a lead(Pb)-free, Interrupt and Other Uses 56-pin, 8mm x 8mm TQFN/SWTQFN with exposed pad Remote/Local Wake-Up from Sleep Mode and 0.5mm lead pitch. Meets Rigorous Automotive and Industrial Applications Requirements High-Resolution Automotive Navigation -40C to +105C Operating Temperature Rear-Seat Infotainment 8kV Contact and 15kV Air ISO 10605 and Megapixel Camera Systems IEC 61000-4-2 ESD Protection Ordering Information appears at end of data sheet. 19-7544 Rev 3 2/18MAX9291/MAX9293 3.12Gbps GMSL Serializers for Coax or STP Output and HDMI Input TABLE OF CONTENTS General Description ............................................................................ 1 Benefits and Features .......................................................................... 1 Absolute Maximum Ratings (Note 1) ............................................................... 7 Package Thermal Characteristics ................................................................. 7 DC Electrical Characteristics ..................................................................... 7 AC Electrical Characteristics 12 Typical Operating Characteristics ................................................................ 16 Pin Configuration ............................................................................. 17 Pin Description ............................................................................... 17 Functional Diagram ........................................................................... 20 Detailed Description........................................................................... 27 Register Mapping . 27 GMSL Input Bit Map . 28 Serial Link Signaling and Data Format . 28 Data-Rate Selection . 29 High-Bandwidth Mode . 29 Video Bit Mapping . 29 Audio Channel 29 Audio Channel from HDMI 31 HDMI TDM Audio Channel Allocation . 32 HDMI Audio Infoframe Data Used in the Packet Header 32 Audio Channel from External Input 35 Reverse Control Channel . 36 Control Channel and Register Programming 36 UART Interface . 36 2 Interfacing Command-Byte-Only I C Devices with UART 39 UART Bypass Mode 39 2 I C Interface . 40 Bit Transfer 41 Acknowledge 41 Slave Address . 41 Bus Reset . 41 Format for Writing 42 Format for Reading . 42 2 I C Communication with Remote-Side Devices 43 2 I C Address Translation 43 Maxim Integrated 2 www.maximintegrated.com