28-Bit GMSL Deserializer for Coax or STP Cable

The MAX9272 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 in UART and mixed UART/I²C modes, and up to 400kbps in I²C mode. Using the control channel, a microcontroller (µC) is capable of programming serializer/deserializer and peripheral device registers at any time, independent of video timing. Two GPIO ports are included, allowing power-up and switching of the backlight in display applications and similar uses. A continuously sampled GPI input supports touch-screen controller interrupt requests.

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 × 7mm) TQFN-EP package with 0.5mm lead pitch and operates over the -40°C to +105°C temperature range.

Applications

* Automotive Camera Systems

* Ideal for Camera Applications

* Works with Low-Cost 50Ω Coax Cable and FAKRA Connectors or 100Ω STP

* Error Detection/Correction

* 9.6kbps to 1Mbps Control Channel in I²C-to-I²C Mode with Clock Stretch Capability

* Best-in-Class Supply Current: 90mA (max)

* Double-Rate Clock for Megapixel Cameras

* Cable Equalization Allows 15m Cable at Full Speed

* 48-Pin (7mm × 7mm) TQFN-EP Package with 0.5mm Lead Pitch

* High-Speed Data Deserialization for Megapixel Cameras

* Up to 1.5Gbps Serial-Bit Rate with Single or Double Output: 6.25MHz to 100MHz Clock

* Multiple Control-Channel Modes for System Flexibility

* 9.6kbps to 1Mbps Control Channel in UART-to-UART or UART-to-I²C Modes

* Reduces EMI and Shielding Requirements

* Input Programmable for 100mV to 500mV Single-Ended or 50mV to 400mV Differential

* Programmable Spread Spectrum on the Parallel Output Reduces EMI

* Tracks Spread Spectrum on Serial Input

* Peripheral Features for Camera Power-Up and Verification

* Built-In PRBS Checker for BER Testing of the Serial Link

* Two GPIO Ports

* Dedicated “Up/Down” GPI for Camera Frame Sync Trigger and Other Uses

* Remote/Local Wake-Up from Sleep Mode

* Meets Rigorous Automotive and Industrial Requirements

* -40°C to +105°C Operating Temperature

* ±10kV Contact and ±15kV Air IEC 61000-4-2 ESD Protection

* ±10kV Contact and ±30kV Air ISO 10605 ESD Protection