The SN9C2805A is a high resolution webcam controller. Besides improved image quality, this generation of ISP
* E m& ?/ `7 ^: ?3 y. hsupports wide dynamic range (WDR) and vertical lens distortion correction (VLDC) to bring better visual $ \! L' D y7 F$ p6 B
experiences. It not only brings less noise image for human eye but also makes the analysis work in machine-vision
; K* q0 p- ~; A, K8 j& K( E% j4 Seasier. For modern high resolution and AI applications, SN9C2805A would be a higher performance and cost $ o: v* N, G$ y) Y; Y/ x
effective choice.! a# D6 ~- @- b
Besides video ISP, SN9C2805A also supports UAC 1.0 specification which records audio form I2S interface or
: J0 h% B" M9 z/ N3 Vdigital microphone input. Programmable audio sampling frequency from 8KHz to 48KHz and resolution of 8/16 bit
4 b. a2 g8 u, L0 I7 cwith mono or stereo.; y; l) x: Q4 H0 X- H0 k
The major functions of SN9C2805A include controlling the CMOS sensor, receiving the image data, converting it to
( E# {/ d1 J9 S3 xvideo stream, and then sending data to the host via USB. It’s compliant with USB 2.0 High-Speed (HS) and USB 2 m. b; s3 F: I% R+ {
Video Class (UVC) 1.1/1.5 over ISO or Bulk in transfer. Compliance with the public standards makes SN9C2805A
6 V9 A2 i4 b, Deasy to be integrated into various fields of applications that need high quality video like high resolution tablet built-in
$ s7 V+ T7 W/ P _. a* ocamera, camcorder, surveillance, video conference and machine vision (AI).. ?% [- ]! K. G. D7 {, `% z
SN9C2805A supports both parallel and MIPI-CSI2 1/2-lane CMOS sensor interfaces and the performance of ISP is ( r2 J2 H3 Q; {: q: `: p! N
up to 2592x1944@30fps or up to 1920x1080@60fps. The high performance Motion-JPEG engine and bit rate 4 d/ v h7 y; M. B
controller provides various compression ratios to meet bandwidth requirement. This system is controlled by the
* L+ Y) U3 j$ e _- J+ wembedded micro-controller with the built-in statistics of AE / AWB. The flexible architecture includes the mask ROM,
+ d1 A7 o0 W. i3 Z1 @, Ointernal RAM and external serial-flash which can store the customized codes and parameters.
& U& ?1 p; Y, s- M( n) g0 u5 C6 f& p# Z7 EThere are 3 built-in regulators and no needs of external oscillator, these features make it able to further save BOM
- V! `* _# X% d# [' Y1 j4 F" h6 aand PCB area. The SN9C2805A is the best choice for the compact modern electronic product design.
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SN9C2805A_0.02.pdf
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发表于 2024-3-22 13:13:08