What are the CMOS chips with ISP?
A CMOS chip with ISP is a chip that integrates an image signal processor (ISP) and a CMOS image sensor. The chip integrates the ISP module directly into the CMOS image sensor, thus realizing the instant processing of the image signal. An Image Signal Processor (ISP) is used to process the original image signals received by an image sensor, such as denoising, enhancing, and color correcting, to improve image quality and clarity. The CMOS image sensor is a semiconductor device that can convert optical signals into electrical signals, and is widely used in digital cameras, mobile phone cameras and other imaging equipment .
The advantages of CMOS chips with their own ISP are their high integration and processing efficiency. Since the ISP and CMOS image sensor are integrated on the same chip, the processing path of the image signal can be greatly shortened, and the loss and interference in the signal transmission process can be reduced, thus improving the real-time and accuracy of image processing. In addition, this integrated design can simplify product design, reduce production costs, and improve the competitiveness of products.
Since the main control basically comes with ISP function, there are few ISP functions in CMOS chips. At present, only 5640/2640/0308/2145 CMOS chips come with ISP function.
OV5640 is a CMOS image sensor designed by OmniVision(OV). The OV5640 supports image output with a maximum size of 2592x1944, providing a resolution of 5 megapixels. The chip supports a variety of shooting modes and formats, including RAW and JPEG encoding output, etc., through the configuration register can choose different output formats . The OV5640 module has several interface signals, such as XVCLK (output clock), PWDN (power off enable signal), PCLK (pixel clock), HREF (line data valid signal), VSYNC (field synchronization signal), etc., for communication and synchronization with external devices .The chip supports DVP and MIPI two data output modes, but the two modes share some pins, so only one can be selected as data output. Compared with the same level of foreign manufacturers, OV5640 has the advantages of cost-effective, autonomous and controllable, rapid response and convenient procurement. OV5640 is widely used in digital cameras, mobile phones and other embedded vision systems .
The GC0308 chip is a VGA CMOS image sensor with 640x480 resolution and 1/7-inch optical format, in a 4-transistor pixel structure, designed on-chip with a 10-bit ADC and an embedded image signal processor . With its high performance and low power consumption, the chip is suitable for various mobile devices, such as cell phones, PDAs and mobile applications, and can extend the battery life of devices . The GC0308 chip is widely used in high-end applications such as large-screen mobile phones and MID markets. It supports a variety of platforms, including MTK6250/52/15/75/17/72/77/89, spreadtrum 6600/6530/6820/8810, Mstar, and completely and core micro crystal, morning mainstream platform.
The GC2145 is a high quality 2 megapixel CMOS image sensor for mobile phone cameras and digital camera products . The sensor has the following key features: Pixel array and signal processing : The GC2145 is equipped with a 1616V x 1232H active pixel array with a built-in 10-bit analog-to-digital converter (ADC) and image signal processor (ISP). ISP provides automatic exposure (AE) and automatic white balance (AWB) controls, and supports interpolation, noise removal, color correction, and gamma correction to better reproduce the real scene . Data formats and support : GC2145 supports a variety of data formats, including Bayer RGB, RGB565, YCbCr 4:2:2, etc. It also features low power standby and operating current, and supports parallel and MIPI modes . The sensor is suitable for a variety of image processing applications such as digital cameras, surveillance cameras, machine vision, medical imaging and security monitoring. Its high resolution, high sensitivity and low noise characteristics make it excellent in these fields
In practical applications, CMOS chips with ISP are widely used in a variety of occasions requiring high-quality image processing, such as smart phones, digital cameras, security monitoring and other fields. With the continuous progress of technology and the increasing application demand, CMOS chips with ISP will be more widely used and developed .
