The SN9C2805A is a high resolution webcam controller. Besides improved image quality, this generation of ISP
+ i3 K) P2 a" S/ Zsupports wide dynamic range (WDR) and vertical lens distortion correction (VLDC) to bring better visual
3 N) Y$ \2 `! H( A, y. Texperiences. It not only brings less noise image for human eye but also makes the analysis work in machine-vision 1 y: E& }" s1 C' m
easier. For modern high resolution and AI applications, SN9C2805A would be a higher performance and cost
5 \& E2 ]4 M6 }2 R" E; ^1 Q* u' Feffective choice.0 D$ i: I. \2 T! T
Besides video ISP, SN9C2805A also supports UAC 1.0 specification which records audio form I2S interface or : ? [4 U7 O* A* o
digital microphone input. Programmable audio sampling frequency from 8KHz to 48KHz and resolution of 8/16 bit & z2 `8 H# W" Y2 J7 J8 |. Y r
with mono or stereo.
; j0 z5 f v1 D7 q6 DThe major functions of SN9C2805A include controlling the CMOS sensor, receiving the image data, converting it to
2 g$ L" a) e1 ^9 |9 Ivideo stream, and then sending data to the host via USB. It’s compliant with USB 2.0 High-Speed (HS) and USB 2 s& y/ c0 d+ o( z& d) U
Video Class (UVC) 1.1/1.5 over ISO or Bulk in transfer. Compliance with the public standards makes SN9C2805A
+ @3 A4 F& q& t/ I2 ?easy to be integrated into various fields of applications that need high quality video like high resolution tablet built-in
2 L9 z" I$ ^8 M1 A3 q7 i7 N* Ecamera, camcorder, surveillance, video conference and machine vision (AI)./ N/ r l9 i h5 W0 Z6 k) P
SN9C2805A supports both parallel and MIPI-CSI2 1/2-lane CMOS sensor interfaces and the performance of ISP is
2 w; _' e2 w% _7 Bup to 2592x1944@30fps or up to 1920x1080@60fps. The high performance Motion-JPEG engine and bit rate
( u9 C1 P! k# N) \- r! j& w8 Ocontroller provides various compression ratios to meet bandwidth requirement. This system is controlled by the ) _) `* b* [, K) b+ b3 L# I
embedded micro-controller with the built-in statistics of AE / AWB. The flexible architecture includes the mask ROM,
2 q2 p% I) i8 m$ b; Hinternal RAM and external serial-flash which can store the customized codes and parameters.9 _" \2 {2 ?* T G+ q% A
There are 3 built-in regulators and no needs of external oscillator, these features make it able to further save BOM ! C1 h/ z+ y- x6 t+ @+ P- k
and 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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