Camera module reference design fits on single PCB
OmniVision Technologies announced its high definition (HD) automotive camera module reference design, developed with collaboration from Leopard Imaging and featuring technology from Texas Instruments (TI). The compact design includes OmniVision’s OX01B40 image sensor plus image signal processor (ISP) system-in-package (SiP), as well as TI’s DS90UB933-Q1 or DS90UB935-Q1 serializer chip and TPS65000-Q1 power management integrated circuit (PMIC).
All four components are AEC-Q100 Grade 2 qualified, with an operating range of -40 to +105°C. The reference design can be integrated directly into vehicles as a low-cost solution with the fastest time to market, or the design can serve as a starter kit for Tier 1s and OEMs who want to create their own camera modules.
The new reference design was created to assist customers in designing automotive viewing cameras, especially rearview cameras or surround-view cameras, where small size, low power consumption, low thermal output, and excellent image quality are critical. The companies say this is the first automotive camera module to incorporate all its components on a single printed circuit board (PCB). Existing modules stack at least two PCBs for the image sensor and ISP, respectively, and usually a third for the power ICs.
OmniVision’s OX01B40 SiP combines a high-performance 1392 x 976-resolution color CMOS image sensor and an ISP. It supports streaming video of up to 60 frames per second (fps) and consumes less than 400 mW of power. Built on OmniVision’s 2.8-micron OmniBSI-2 Deep Well pixel technology, the OX01B40 delivers best-in-class low-light sensitivity and 120 dB high dynamic range (HDR) performance for excellent contrast and for resilience to rapidly changing lighting conditions ranging from darkness to bright sunlight.
Handling the power needs in the design, TI’s TPS65000-Q1 single-chip PMIC combines low-dropout regulators with a step-down converter that can operate in forced PWM mode or auto PWM-PFM mode, depending on load, to maximize efficiency. This reference design also offers the choice of either parallel CMOS (DS90UB933-Q1) or MIPI CSI-2 (DS90UB935-Q1) FPD-Link serializers, both of which support communication with high-speed image sensors and are for customers designing high-resolution, compact camera modules with 1-MP cameras streaming at up to 60 fps. The DS90UB935-Q1 also removes the need for an oscillator in the camera module, minimizing cost and space while providing reliability.