The MAX9249 serializer with LVDS system interface utilizes Maxim's Gigabit multimedia serial link (GMSL) technology. The MAX9249 serializer pairs with any GMSL deserializer to form a complete digital serial link for joint transmission of high-speed video, audio, and control data. The MAX9249 allows a maximum serial payload data rate of 2.5Gbps for a 15m shielded twisted-pair (STP) cable. The serializer operates up to a maximum clock rate of 104MHz (3-channel LVDS) or 78MHz (4-channel LVDS). This serial link supports display panels from QVGA (320 x 240) to WXGA (1280 x 800) and higher with 24-bit color. The 3-channel mode handles three lanes of LVDS data (21 bits), UART control signals, and three audio signals. The 4-channel mode handles four lanes of LVDS data (28 bits), UART control signals, three audio signals, and/or up to three auxiliary parallel inputs. The three audio inputs form a standard I²S interface, supporting sample rates from 8kHz to 192kHz and audio word lengths of 4 to 32 bits. The embedded control channel forms a full-duplex, differential, 100kbps to 1Mbps UART link between the serializer and deserializer. The electronic control unit (ECU), or microcontroller (µC), can be located on the MAX9249 side of the link (typical for video display), on the deserializer side of the link (typical for image sensing), or on both sides. In addition, the control channel enables ECU/µC control of peripherals on the remote side, such as backlight control, grayscale Gamma correction, camera module, and touch screen. Base-mode communication with peripherals uses either I²C or the GMSL UART format. A bypass mode enables full-duplex communication using custom UART formats. The MAX9249 serializer driver preemphasis, along with the channel equalizer on the GMSL deserializer, extends the link length and enhances the link reliability. Spread spectrum is available on the MAX9249 to reduce EMI on the serial link and the parallel output of the GMSL deserializer. The serial output complies with ISO 10605 and IEC 61000-4-2 ESD protection standards. The core supply for the MAX9249 is 1.8V. The I/O supply ranges from 1.8V to 3.3V. The MAX9249 is available in a 48-pin TQFP package (7mm x 7mm) with an exposed pad. Electrical performance is guaranteed over the -40°C to +105°C automotive temperature range.ApplicationsHigh-Resolution Automotive NavigationMegapixel Camera SystemsRear-Seat Infotainment

The MAX9259 serializer pairs with the MAX9260 deserializer for joint transmission of high-speed video, audio, and control data.The MAX9259/MAX9260 operate up to 3.125Gbps for a 15m shielded twisted-pair (STP) cable. This serial link supports display panels from QVGA (320 x 240) up to XGA (1280 x 768), or dual-view WVGA (2 x 854 x 480).The embedded audio channel supports I2S up to 32 bits per sample and at a 192kHz sample rate. The embedded control channel forms a full-duplex, differential 100kbps to 1Mbps UART link between the serializer and deserializer. The host electronic control unit (ECU) or microcontroller (µC) resides either on the MAX9259 or on the MAX9260. In addition, the control channel enables ECU/µC control of peripherals in the remote side of the serial link through I2C/UART.Preemphasis and channel equalization extend the link length and enhance the link reliability. Spread spectrum is available to reduce EMI on the serial and parallel output data signals. The differential link complies with the ISO 10605 and IEC 61000-4-2 ESD-protection standards.The core supplies for the MAX9259/MAX9260 are 1.8V and 3.3V, respectively. Both devices use an I/O supply from 1.8V to 3.3V. These devices are available in a 64-pin TQFP package (10mm x 10mm) and a 56-pin TQFN/QFND package (8mm x 8mm x 0.75mm) with an exposed pad. Electrical performance is guaranteed over the -40°C to +105°C automotive temperature range.ApplicationsAutomotive Navigation, Infotainment, and Image-Sensing SystemsHigh-Speed Serial-Data Transmission for DisplayHigh-Speed Serial-Data Transmission for Image Sensing

The MAX9263/MAX9264 chipset extends Maxim’s gigabit multimedia serial link (GMSL) technology to include high-bandwidth digital content protection (HDCP) encryption of video and audio data. The MAX9263 serializer, or any HDCP-GMSL serializer, pairs with the MAX9264 deserializer, or any HDCP-GMSL deserializer, for the transmission of control data and HDCP encrypted video and audio data.The parallel interface operates with a pixel clock up to 104MHz. Three inputs are for I2S audio, supporting a sampling frequency to 192kHz and a sample depth to 32 bits. The embedded control channel forms a fullduplex differential 9.6kbps to 1Mbps UART link between the serializer and deserializer. A microcontroller (µC), can be located on the serializer side of the link, on the deserializer side of the link, or on both sides. The control channel enables µC control of peripherals on the remote side, such as backlight control, touch screen, and perform HDCP-related operations.For driving longer cables, the serializer has programmable pre/deemphasis, and the deserializer has a programmable channel equalizer. The GMSL devices have programmable spread spectrum on the serial (serializer) and parallel (deserializer) output. The serial link input and output meet ISO 10605 and IEC 61000-4-2 ESD standards. The serializer core supply is 1.8V and the deserializer core supply is 3.3V. The I/O supply is 1.8V to 3.3V. Both devices are available in a 64-pin TQFP package with an exposed pad and are specified over the -40°C to +105°C automotive temperature range.ApplicationsHigh-Resolution Automotive NavigationMegapixel Camera SystemsRear-Seat Infotainment

The MAX9268 deserializer utilizes Maxim's gigabit multimedia serial link (GMSL) technology. The MAX9268 deserializer features an LVDS system interface for reduced pin count and a smaller package, and pairs with any GMSL serializer to form a complete digital serial link for joint transmission of high-speed video, audio, and bidirectional control data. The MAX9268 allows a maximum serial payload data rate of 2.5Gbps for a 15m shielded twisted-pair (STP) cable. The deserializer operates up to a maximum output clock rate of 104MHz (3-channel LVDS) or 78MHz (4-channel LVDS). This serial link supports display panels from QVGA (320 x 240) to WXGA (1280 x 800) and higher with 24-bit color. The 3-channel mode outputs an LVDS clock, three lanes of LVDS data (21 bits), UART control signals, and one I²S audio channel consisting of three signals. The 4-channel mode outputs an LVDS clock, four lanes of LVDS data (28 bits), UART control signals, an I²S audio channel, and auxiliary control outputs. The three audio outputs form a standard I²S interface, supporting sample rates from 8kHz to 192kHz and audio word lengths of 4 to 32 bits. The embedded control channel forms a full-duplex, differential, 100kbps to 1Mbps UART link between the serializer and deserializer. An electronic control unit (ECU), or microcontroller (µC), can be located on the serializer side of the link (typical for video display), on the MAX9268 side of the link (typical for image sensing), or on both sides. In addition, the control channel enables ECU/µC control of peripherals on the remote side, such as backlight control, grayscale Gamma correction, camera module, and touch screen. Base-mode communication with peripherals uses either I²C or the GMSL UART format. In addition, the MAX9268 features a bypass mode that enables full-duplex communication using custom UART formats. The GMSL serializer driver preemphasis, along with the MAX9268 channel equalizer, extends the link length and enhances the link reliability. Spread spectrum is available to reduce EMI on the LVDS and control outputs of the MAX9268. The serial line inputs comply with ISO 10605 and IEC 61000-4-2 ESD protection standards. The core supply for the MAX9268 is 3.3V. The I/O supply ranges from 1.8V to 3.3V. The MAX9268 is available in a 48-pin TQFP package (7mm x 7mm) with an exposed pad, and is specified over the -40°C to +105°C automotive temperature range.ApplicationsHigh-Resolution Automotive NavigationMegapixel Camera SystemsRear-Seat Infotainment

The LTC2870/LTC2871 are robust pin-configurable multiprotocol transceivers, supporting RS232, RS485, and RS422 protocols, operating on a single 3V to 5.5V supply. The LTC2870 can be configured as two RS232 single-ended transceivers or one RS485 differential transceiver on shared I/O lines. The LTC2871 offers independent control of two RS232 transceivers and one RS485 transceiver, each on dedicated I/O lines. Pin-controlled integrated termination resistors allow for easy interface reconfiguration, eliminating external resistors and control relays. Half-duplex switches allow four-wire and two-wire RS485 configurations. Loopback mode steers the driver inputs to the receiver outputs for diagnostic self-test.The RS485 receivers support up to 256 nodes per bus, and feature full failsafe operation for floating, shorted or terminated inputs.An integrated DC/DC boost converter uses a tiny 2mm × 1.6mm inductor and one capacitor, eliminating the need for multiple supplies for driving RS232 levels.Applications Flexible RS232/RS485/RS422 Interface Software Selectable Multiprotocol Interface Ports Point-of-Sale Terminals Cable Repeaters Protocol Translators

This document explains how the Munich (USB2PMB1#) adapter board receives commands from a laptop through the USB to create an SPI interface. Hardware design files as well as results on interfacing USB2PMB1# with MAX11300PMB1, Santa Fe (MAXREFDES5#), Campbell (MAXREFDES4#), Fresno (MAXREFDES11#), and Corona (MAXREFDES12#) are provided.Portability has become another word for convenience. These days, almost all of us carry laptops, and this advantage can be used to showcase parts to the customers offering solutions that can cater to their needs. To have that convenience, we need to have a board that interfaces with our laptops to the signal chain electronics that are present on many of the industrial, medical, and consumer applications. This adapter board serves this purpose of being a bridge between your laptop and your SPI-enabled devices.The Maxim USB2PMB1# board requires custom software and can be ordered together as an evaluation system (EV system). The Munich design integrates a low-power, 1.2A, PWM step-down DC-DC converter (MAX1556); a dual, high-speed, USB-to-multipurpose UART/FIFO IC (FT2232HL); and a 4K MICROWIRE®-compatible serial EEPROM. This Munich adapter board is used to enable USB-to-SPI interface for any Pmod™-compatible plugin peripheral modules such as the Maxim Campbell, Santa Fe, Fresno, and Corona reference designs.Ordering information for EV systems is included in the EV kits’ corresponding data sheet. An EV system is an EV kit combined with an interface board such as a USB2PMB1# and custom software. Refer to the appropriate EV kit data sheet for quick start and detailed operating instructions. The USB2PMB1# has been tested on Windows® 7, Windows 8, and Windows XP®.ApplicationsIndustrial AutomationIndustrial SensorsMedicalPLCsProcess Control

The MAX22190 is an IEC 61131-2 compliant industrial digital input device. The MAX22190 translates eight, 24V current-sinking, industrial inputs to a serialized SPI-compatible output that interfaces with 3V to 5.5V logic. A current setting resistor allows the MAX22190 to be configured for Type 1, Type 2, or Type 3 inputs. Field wiring is verified for proximity switches, by a second threshold detector on each input. When wire-break is enabled, the active-low FAULT output is asserted and a registerflag is set if the input current drops below the wire-break threshold for more than 20ms. Additional diagnostics thatassert the active-ow FAULT pin include: overtemperature, low 24V field supply, 24V field supply missing, CRC communication error, etc.For robust operation in industrial environments, each input includes a programmable glitch filter. The filter delay on each channel can be independently programmed to one of eight values between 50μs and 20ms, or filter bypass.The MAX22190 has a 4-pin SPI interface and in addition uses the active-low LATCH input for synchronizing input data across multiple devices in parallel.MAX22190 field-side accepts a single 7V to 65V supply to VDD24 pin. When powered by the field supply, MAX22190 generates a 3.3V output from an integrated LDO regulator, which can provide up to 25mA of current for external loads in addition to powering the MAX22190. Alternatively, MAX22190 can be powered from a 3.0V to 5.5V logic side supply connected to VDD pin. For flexibility, the SPI interface operates at 3.3V or 5V logic levels as controlled by the VL pin. Design Solution: Industrial Digital Inputs: They’re Not Quite as Simple as Counting from 0 to 1 ›ApplicationsBuilding AutomationIndustrial AutomationProcess AutomationProgrammable Logic Controllers

The MAX22245/MAX22246 are a family of 2-channelreinforced, fast, low-power digital galvanic isolatorsusing Maxim’s proprietary process technology. Alldevices feature reinforced isolation for a withstandvoltage rating of 5kVRMS for 60 seconds. Bothautomotive and general-purpose devices are rated foroperation at ambient temperatures of -40°C to +125°C.Devices with /V suffix are AEC-Q100 qualified. Refer tothe Ordering Information for all automotive grade partnumbers. Industrial Isolated SPI Isolated RS-232, RS-485/RS-422, CAN Fieldbus Communications Motor DriveThese devices transfer digital signals between circuitswith different power domains, using as little as 0.78mWper-channel at 1Mbps (1.8V supply). The low-powerfeature reduces system dissipation, increases reliability,and enables compact designs.Devices are available with a maximum data rate of25Mbps or 200Mbps, and with outputs that are eitherdefault high or default low. The devices feature lowpropagation delay and low clock jitter, which reducessystem latency.Independent 1.71V to 5.5V supplies on each side of theisolator also make the devices suitable for use as leveltranslators.The MAX22245 features two channels transferring datain the same direction. The two channels of theMAX22246 transfer data in opposite directions, and thismakes the MAX22246 ideal for isolating the Tx and Rxlines of a transceiver.ApplicationsAutomotiveBattery Management Systems (BMS)ChargersHybrid Electric VehicleInverters

The MAX9240A compact deserializer is designed to interface with a GMSL serializer over 50Ω coax or 100Ω shielded twisted-pair (STP) cable. The device pairs with the MAX9271 or MAX9273 serializers.The parallel output is programmable for single or double output. Double output strobes out half of a parallel word on each pixel clock cycle. Double output can be used with GMSL serializers that have the double-input feature.The device features an embedded control channel that operates at 9.6kbps to 1Mbps. Using the control channel, a microcontroller (µC) can program the serializer/deserializer and peripheral device registers at any time, independent of video timing. Two programmable GPIO ports and a continuously sampled GPI input are available.For use with longer cables, the device has a programmable 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 range is 1.7V to 1.9V and the I/O supply range is 1.7V to 3.6V. The device is available in a 48-pin (7mm x 7mm) TQFN-EP package with 0.5mm lead pitch and operates over the -40°C to +105°C temperature range. ApplicationsAutomotive Camera Systems

The MAX9276A/MAX9280A 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 MAX9280A has HDCP content protection but otherwise is the same as the MAX9276A. 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 (MAX9280A). Two GPIO ports are included, allowing display power-up 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 TQFNand SWTQFN packages with exposed pad and 0.5mmlead pitch.ApplicationsHigh-Resolution Automotive NavigationMegapixel Camera SystemsRear-Seat Infotainment