The SN9C2808ZSJG is a high resolution webcam controller. Besides improved image quality, this generation of ISP supports wide dynamic range (WDR) and vertical lens distortion correction (VLDC) to bring better visual experiences. It not only brings less noise image for human eye but also makes the analysis work in machine-vision easier. For modern high resolution and AI applications, SN9C2808ZSJG would be a higher performance and cost effective choice. 

 

The major functions of SN9C2808ZSJG include controlling the CMOS sensor, receiving the image data, converting it to video stream, and then sending data to the host via USB. It’s compliant with USB 2.0 High-Speed (HS) and USB Video Class (UVC) 1.1/1.5 over ISO or Bulk in transfer. Compliance with the public standards makes SN9C2808ZSJG easy to be integrated into various fields of applications that need high quality video like high resolution tablet built-in camera, camcorder, surveillance, video conference and machine vision (AI). 

 

SN9C2808ZSJG supports both parallel and MIPI-CSI2 1/2/4-lane CMOS sensor interfaces and the performance of ISP is up to 3264x2448@15fps or up to 1920x1080@60fps. The high performance Motion-JPEG engine and bit rate controller provides various compression ratios to meet bandwidth requirement. This system is controlled by the embedded micro-controller with the built-in statistics of AE / AWB. The flexible architecture includes the mask ROM, internal RAM and external serial-flash which can store the customized codes and parameters. 

 

There are 3 built-in regulators and no needs of external oscillator, these features make it able to further save BOM and PCB area. The SN9C2808ZSJG is the best choice for the miniaturization compact （L6.5*W4.5*T0.8mm）modern electronic product design. 

 ■  Single 3.3v power supply 

 ■  Extreme low power consumption, < 30mA when standby and < 0.5mA when suspend (Power consumption of sensor is not included) 

 ■  Built-in Clock Synthesizer for performance and power saving 

 ■  Support external oscillator input with 12MHz frequency 

 ■  Built-in PLL for internal clock generation 

 ■  Using external serial flash to store customized code and data 

 ■  No external RAM needed 

 ■  2 sets of selectable 1.0/1.2/1.5/1.85/2.0/2.85/3.0/3.3 V internal LDO to supply CMOS sensor analog and IO power 

 ■  QFN package of 46-pins 

 

 ■  USB 2.0 high-speed and full-speed compatible 

 ■  USB Video Class 1.1 / 1.5 compliant 

 ■  USB 2.0 HS/FS compatible and auto switch 

 ■  USB FS mode and USB disconnection are programmable 

 ■  USB Low Power Management Sleep State with RTD3 

 ■  5 endpoints: 1 CONTROL pipe, 2 Interrupt IN , 1 Bulk IN (Video stream) and 1 Isochronous-IN 

(MJPEG/YUY2 video stream) 

 ■  6 alternate settings for Video Streaming Interface 

 

 ■  Support up to 3M (2304x1296) 8/10-bit parallel CMOS sensor 

 ■  Support image data type: Y8, YUV422 (YUY2) 8-bits, and RAW8/10 (Bayer-Pattern) 

 ■  Output MCLK: 120MHz based output clock request for CMOS sensor silicon 

 ■  Up to 192MHz pixel clock is acceptable 

 ■  Support industrial standard 2-wire serial interface to control sensor 

 

 ■  MIPI-CSI2 with D-PHY: 1 clock lane and 4 data lane which can be configured to 1/2/4-lane 

 ■  Support up to 8M (3264x2448) MIPI CSI-2 CMOS sensor 

 ■  Support image data type: YUV422 (YUY2) 8-bits, and RAW8/10 (Bayer-Pattern) 

 ■  Output MCLK: 120MHz based output clock request for CMOS sensor silicon 

 ■  Data rate up to 1Gbps/Lane 

 ■  MIPI protocol complies to MIPI Camera Serial Interface 1.0 specification Camera Serial Interface 2 v1.0 (CSI-2) 

 ■  Support industrial standard 2-wire serial interface to control sensor 

 

 ■  Resolution support up to 8M pixels (3264x2448) 

 ■  ISP clock up to 192MHz 

 ■  Frame rate up to 8M@15fps or FHD@60fps 

 ■  AE histogram statistics 

 ■  AWB window statistics 

 ■  AF edge window statistics 

 ■  On-the fly defect-pixel cancellation 

 ■  Lens shading compensation for R/G/B channel 

 ■  Color interpolation Low pass filter 

 ■  Individual digital color gain control for R/Gr/Gb/B channels 

 ■  Individual digital color gain control for Y/Cb/Cr channels 

 ■  Pixel offset (optical black) compensation for R/Gr/Gb/B channels 

 ■  Programmable gamma table for RGB channels 

 ■  Programmable color conversion matrix for R/G/B input 

 ■  Configurable noise reduction 

 ■  De-color aliasing in Edge 

 ■  Configurable edge enhancement 

 ■  Programmable gamma table for Y channel 

 ■  Configurable windowing function after processed image 

 ■  Programmable hue and saturation 

 ■  Auto Gamma for backlight preview 

 ■  Auto 50Hz/60Hz frequency switch 

 ■  Auto de-flicker 

 ■   Wide Dynamic Range (WDR) 

 ■  Vertical lens distortion correction (VLDC) 

 ■  Scale down only on Y/Cb/Cr format 

 ■  With LPF to eliminate artifact (Satisfy Microsoft Lync unify under max. scaling down ratio which is 1280->160 pixels) 

 ■  Max scaling down path is from 3264x2448 to 320x240 

 

 ■  Displays Up to 4 Rows x 24 Characters with independent start position 

 ■  Character Size HxV: 16x16, 16x24 

 ■  Line zoom (x1, x2, x3, x4 to x8 for both X and Y coordinates) 

 ■  Character with transparency and other 3 color choices. 

 ■  64 different user definable characters can be stored in RAM. 

 ■  Start address is 16-pixel alignment to output image window 

 ■  With precise accumulator to account the timer of OSD 

 

 ■  Built-in JPEG encoder support USB Video Class MJPEG payload 

 ■  JPEG YUV422 baseline format 

 ■  128 bytes quantization tables for Y and C provide programmable compression ratio 

 ■  Support frame level bite rate control mechanism 

 

 ■  UVC output video / still image format: 

 ■  USB Video Class Uncompressed YUY2 payload (16bits/pixel) 

 ■  USB Video Class MJPG payload 

 ■  Still Image capture is able to support UVC still image capture method 1 & 2 

 ■  Video streaming up to 60fps@FHD at USB2.0 high-speed mode 

 

 ■  Frame rate considering USB bandwidth limitation 

 

 ■  Under the conditions that USB 2.0 ISO throughput=24MB/s, USB2.0 Bulk throughput=35MB/s, and JPEG 

compression ratio = 8:1. The supported resolution list is listed in Table 2.9-1. 

（Table 2.9-1 Supported list of frame rate ）

 

 ■  Frame rate considering sensor characteristic 

The maximum frame rate is limited by how many fps that sensor can output under acceptable maximum pixel clock 

 ■  Support stereo digital microphone serial interface (DMIC) 

 ■  Support 8/16-bit resolution 

 ■  Support 8K/ 11.025K/ 16K/ 44.1K/ 48K Hz sampling rate 

 ■  Support signed/unsigned data format 

 ■  Support stereo transition 

 

 ■   4 GPIOs are predefined as following functions including LED control, serial flash write protect, sensor LDO and reset/power_down control 

 ■  4 GPIO is reserved for customized application. 

 

 ■   Built-in 8032 micro controller with 6K bytes data memory, and CPU clock rate is up to 120MHz 

 ■  Load extended F/W from external serial flash. 

 ■  Load VID/PID, manufacturer, product and serial number string from external serial flash. 

 ■  Load UVC parameter definition from external serial flash. 

 ■  F/W is upgradeable from PC 

 ■  Force USB at FS mode / Force USB disconnect 

 ■  Watch dog supported 

 

 ■  Brightness control (UVC defined) 

 ■  Contrast control (UVC defined) 

 ■  Hue control (UVC defined) 

 ■  Saturation control (UVC defined) 

 ■  Sharpness control (UVC defined) 

 ■  Gamma control (UVC defined) 

 ■  White Balance Temperature (UVC defined) 

 ■  Backlight Compensation (UVC defined) 

 ■  Gain (UVC defined) 

 ■  Power Line Frequency (UVC defined) 

 ■  White Balance Temperature, Auto (UVC defined) 

 ■  Auto-Exposure Mode (UVC defined) 

 ■  Auto-Exposure Priority (UVC defined) 

 ■  Exposure Time(Absolute), (UVC defined) 

 ■  LED indicator on video streaming 

 ■  UVC Extension unit support 

 

 ■  Microsoft Window 7 32 & 64 bit, Microsoft Window 8/8.1 32 & 64 bit, Microsoft Window 10 32 & 64 bit 

 ■  Linux with UVC driver (open source available at http://linux-uvc.berlios.de/) 

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