IMX385LQR-C is a diagonal 8.35mm (1/2 type) CMOS active pixel type solid-state image sensor with a square pixel array and 2.13M effective pixels. The chip works with analog 3.3V, digital 1.2V, and interface 1.8V triple power supply, with low power consumption. The three-color mosaic technology of R, G, and B is used to obtain high sensitivity, low dark current, and no smudge effects. The chip has an electronic shutter with variable charge integration time.
Features:
CMOS active pixel type point
Built-in timing adjustment circuit, H/V drive and serial communication circuit.
Input frequency: 74.25 MHz / 37.125 MHz
Recommended recording pixel count: 1920 (H) × 1080 (V) approx. 2.07 M pixels
Readout mode: Full pixel scan mode / Window crop mode / Vertical / Horizontal direction: Forward / reverse readout mode
Readout rate: Maximum frame rate in full pixel scan mode: 120 frames/s
Wide dynamic range (WDR) function: Multiple exposure WDR / Digital overlap WDR
Variable shutter function (resolution 1H unit)
10-bit / 12-bit A/D converter
Conversion gain switch (HCG mode / LCG mode)
CdS / PGA function: 0 dB to 30 dB: Analog gain 30 dB (0.1 dB step) 30.1dB to 72 dB: Analog gain 30 dB Digital gain 0.1 to 42 dB (0.1 dB step)
Supported I/O exchange: Low voltage LVDS (150 MVP-p) serial (2 ch/4 ch/8 ch switch) DDR output/CSI-2 serial data output (2 Lane/4 Lane, RAW 10/RAW 12 output)
Recommended lens F number: 2.8 or more (near edge)
Recommended exit pupil distance: -30 mm to -∞
Frequently Asked Questions and Answers about IMX385 Camera Image Sensor
1. What are the main performance characteristics of IMX385 Camera Image Sensor?
A: IMX385 Camera Image Sensor has high resolution and high sensitivity, and can capture clear and delicate images under various lighting conditions. It has a wide dynamic range and can process details from dark to bright parts, making the captured images more realistic and natural. In addition, the sensor has the characteristics of low noise and low power consumption, which can maintain stable performance during long-term operation and reduce equipment heating and power consumption.
2. What fields are IMX385 Camera Image Sensors suitable for?
A: IMX385 Camera Image Sensors are widely used in security monitoring, smart home, autonomous driving and other fields. In the field of security monitoring, it can provide high-definition and smooth video images to help users understand the status of the monitored area in real time. In the field of smart home, the sensor can cooperate with various smart devices to realize functions such as intelligent recognition and automatic control. In the field of autonomous driving, IMX385 image sensors can provide accurate road and obstacle information, providing strong guarantee for the safe driving of vehicles.
3. What is the driving architecture of IMX385 Camera Image Sensor?
A: The driver architecture of the IMX385 camera image sensor usually consists of two parts: the kernel driver and the user space interface. The kernel driver is responsible for direct interaction with the hardware, including initialization configuration, data transmission and interrupt handling. The user space interface provides the application with an API to access the hardware, such as setting parameters, starting capture, etc. This architecture ensures efficient operation and flexible control of the sensor.
4. How does the IMX385 camera image sensor communicate with the processor?
A: The IMX385 camera image sensor usually communicates with the processor through the MIPI CSI-2 (Mobile Industry Processor Interface – Camera Serial Interface 2) interface. MIPI CSI-2 is a high-speed, low-power serial interface suitable for high-definition video and image data transmission. Driver development requires understanding of the MIPI CSI-2 protocol to enable the sending and receiving of data packets.
5. How does the IMX385 camera image sensor perform in a backlit environment?
A: The IMX385 camera image sensor performs well in a backlit environment. Some IMX385-based backlight cameras can significantly improve the image quality by carrying an imaging engine and using ultra-high dynamic range technology, making every target in the monitoring scene clearly visible. Even in backlight conditions, it can effectively reduce problems such as shadows and yin and yang sides, and improve the visibility and recognition rate of the image.
6. How to debug and test the IMX385 camera image sensor?
Answer: When debugging and testing the IMX385 camera image sensor, developers need to use tools such as GDB, kernel log, trace, etc. to locate the problem. At the same time, it is necessary to write test cases to verify the correctness of the driver, including basic function tests and performance tests. These tests can ensure the stability and reliability of the sensor in different scenarios.
7. What are the power management functions of the IMX385 camera image sensor?
Answer: The power management functions of the IMX385 camera image sensor include sleep and wake-up modes to save energy. When image capture is not required, the sensor can enter sleep mode to reduce power consumption; when image capture is required, the sensor is woken up to work. This power management function helps to extend the battery life of the device and reduce overall energy consumption.
8. What is the synchronization mechanism of the IMX385 camera image sensor in binocular applications?
Answer: In binocular applications, two IMX385 camera image sensors need to be precisely synchronized to obtain synchronized image data. This usually involves synchronization signals at the hardware level or timestamp synchronization strategies at the software level. By ensuring that the two sensors capture image data at the same time point, the accuracy and reliability of the binocular vision system can be improved.
9. What is the resolution and frame rate of the IMX385 camera image sensor?
Answer: The specific resolution and frame rate of the IMX385 camera image sensor may vary depending on the model or application scenario. In general, the IMX385 sensor has a high resolution and frame rate that can meet the needs of a variety of application scenarios. However, the specific resolution and frame rate values need to refer to the sensor's specification sheet or related documents.
10. How does the IMX385 camera image sensor perform under low light conditions?
Answer: The IMX385 camera image sensor also performs well under low light conditions. Its high sensitivity and low noise characteristics enable the sensor to capture clear and detailed images in low light environments. In addition, some IMX385-based cameras are also equipped with low-light optimization algorithms to further improve imaging quality in low-light conditions.
