The SN9C2805A is a high resolution webcam controller. Besides improved image quality, this generation of ISP ' O& B0 k" J7 \ ]$ S
supports wide dynamic range (WDR) and vertical lens distortion correction (VLDC) to bring better visual 8 x# c7 E6 b4 G8 B" o0 S% `
experiences. It not only brings less noise image for human eye but also makes the analysis work in machine-vision
# w$ |! A ]( x. s/ {& Yeasier. For modern high resolution and AI applications, SN9C2805A would be a higher performance and cost 6 B! a+ a% d# P! A7 P
effective choice.
" y0 m7 T! i7 B' V# x HBesides video ISP, SN9C2805A also supports UAC 1.0 specification which records audio form I2S interface or ) l! k7 P: W% D" W5 \! O; H, B
digital microphone input. Programmable audio sampling frequency from 8KHz to 48KHz and resolution of 8/16 bit
4 i* e- w( x R$ Y2 s( zwith mono or stereo.! k2 S0 \/ k. _% t, x2 [$ U3 H4 T
The major functions of SN9C2805A include controlling the CMOS sensor, receiving the image data, converting it to # V0 h) N( ~4 n/ e" P5 o" U
video stream, and then sending data to the host via USB. It’s compliant with USB 2.0 High-Speed (HS) and USB ' z" i* A8 R, l9 v$ h, i$ O& V6 X6 F
Video Class (UVC) 1.1/1.5 over ISO or Bulk in transfer. Compliance with the public standards makes SN9C2805A& Q! f4 X6 O, M& t Y; @
easy to be integrated into various fields of applications that need high quality video like high resolution tablet built-in - M A2 m4 {- G! k6 }: `; l
camera, camcorder, surveillance, video conference and machine vision (AI).7 |% o" T0 f3 ]# O2 b/ c/ W
SN9C2805A supports both parallel and MIPI-CSI2 1/2-lane CMOS sensor interfaces and the performance of ISP is
6 @2 S# T$ y0 u/ zup to 2592x1944@30fps or up to 1920x1080@60fps. The high performance Motion-JPEG engine and bit rate
" x6 L& ?. S" p$ B# h3 B2 kcontroller provides various compression ratios to meet bandwidth requirement. This system is controlled by the
. \/ }' d9 w. x) G: wembedded micro-controller with the built-in statistics of AE / AWB. The flexible architecture includes the mask ROM, 9 R2 c" D/ d- x9 e* l4 a
internal RAM and external serial-flash which can store the customized codes and parameters.
7 X, ]3 }& t/ J7 x3 P9 h. E; SThere are 3 built-in regulators and no needs of external oscillator, these features make it able to further save BOM , v( K9 `. B! _; N3 c9 R
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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发表于 2024-3-22 13:13:08