The SN9C2805A is a high resolution webcam controller. Besides improved image quality, this generation of ISP
3 E, W3 q+ ], J0 H5 c# j2 e8 usupports wide dynamic range (WDR) and vertical lens distortion correction (VLDC) to bring better visual
3 @3 {, P1 @' k Q. M! Q6 U$ Vexperiences. It not only brings less noise image for human eye but also makes the analysis work in machine-vision
- E1 t- b% m# y+ o/ yeasier. For modern high resolution and AI applications, SN9C2805A would be a higher performance and cost 9 W) ~2 o7 [: S$ V* ?1 z! g
effective choice.6 F! \5 k f( f5 P2 N0 J' L
Besides video ISP, SN9C2805A also supports UAC 1.0 specification which records audio form I2S interface or
, u/ h5 B# G. p( B- [) e/ ]# xdigital microphone input. Programmable audio sampling frequency from 8KHz to 48KHz and resolution of 8/16 bit 5 t' c* x9 D" o& Y
with mono or stereo.
" F5 R6 L; h7 _3 n* V: F* u7 q7 @The major functions of SN9C2805A include controlling the CMOS sensor, receiving the image data, converting it to
% E: a- n2 J8 x8 pvideo stream, and then sending data to the host via USB. It’s compliant with USB 2.0 High-Speed (HS) and USB $ G" s8 V) m4 D6 R& x! E8 Z
Video Class (UVC) 1.1/1.5 over ISO or Bulk in transfer. Compliance with the public standards makes SN9C2805A
8 i& U. I6 U- |; v Eeasy to be integrated into various fields of applications that need high quality video like high resolution tablet built-in
$ G4 X$ x( d+ F; Xcamera, camcorder, surveillance, video conference and machine vision (AI).
9 w9 B! Y' q3 B5 jSN9C2805A supports both parallel and MIPI-CSI2 1/2-lane CMOS sensor interfaces and the performance of ISP is ' ^! G( {# ~9 y% x6 N- L
up to 2592x1944@30fps or up to 1920x1080@60fps. The high performance Motion-JPEG engine and bit rate ! \6 |6 x8 f1 `+ U5 W9 e
controller provides various compression ratios to meet bandwidth requirement. This system is controlled by the
" \# S! D& r3 `" A0 D" `6 h9 Hembedded micro-controller with the built-in statistics of AE / AWB. The flexible architecture includes the mask ROM, " Q( B& T8 \9 N: l
internal RAM and external serial-flash which can store the customized codes and parameters.) B+ I! a* E5 P, p7 H5 v' g" @
There are 3 built-in regulators and no needs of external oscillator, these features make it able to further save BOM
; r c% ?( o. x* |# z6 s/ o3 Oand 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