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Design overview
The PMP9351 is a compact power and serializer solution for automotive auxiliary camera modules using the OmniVision image sensor OV10635. This reference board has two LMR22007 synchronous buck regulators that provide two 3.3V outputs and one 1.5V output to power the OV10635 evaluation board that bypasses the on-board LDO. This design occupies an effective PCB board area of ​​20x20mm. The system input voltage is the 9V rated voltage from the ECU and its input range is 5.5V to 20V. This reference board includes the DS90UB913Q serializer and supports a coaxial cable power configuration that allows input power and FPD-Link III signals to be transmitted over a single coaxial cable.
Design system block diagram (click here to download the complete block diagram)
Design features:
· Power and serializer solutions designed for the OmniVision OV10635 image sensor in automotive cameras
· Compact solution size with 20x20mm board area
· 3.3V and 1.5V outputs with output filters to cover I/O, core, analog voltage rails and ensure high image quality
· 5.5V to 20V operating input voltage range, 9V rated input from ECU
· Coaxial cable power supply configuration for transmitting input power and FPD-Link III signals over a coaxial cable
· Connect to the OV10635 EVM with a slightly modified board through a compatible interface
Design documentation (click here to download the full design resource)
Design demonstration:
Related design recommendations:
Reference Design 1: Automotive USB Battery Charging Reference Design
Description: The USB battery charging reference design has been sized to fit in the automotive power accessory port. The design uses a USB dedicated charging port controller with integrated current-limited power switch and 42V DC/DC converter. Highly integrated and small package size for a compact form factor.
Reference Design 2: Dual Port Automotive USB Charger Reference Design
Description: Using the TPS40170 PWM buck controller, this power management reference design provides a 5V regulated output in its small form factor to power two USB ports, each with 2.1A (4.2A total). This design is optimized for a 12V rated input and accepts 8-60V.
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