The SN9C2805A is a high resolution webcam controller. Besides improved image quality, this generation of ISP , T0 U' B' X0 n2 T9 i+ b
supports wide dynamic range (WDR) and vertical lens distortion correction (VLDC) to bring better visual * b: e3 H# t& f' v5 n; R3 u" \/ d% Z
experiences. It not only brings less noise image for human eye but also makes the analysis work in machine-vision
8 I8 S8 T7 X7 x7 [easier. For modern high resolution and AI applications, SN9C2805A would be a higher performance and cost
6 w5 `# N+ b, Ceffective choice.
4 b1 {3 T* I2 I* HBesides video ISP, SN9C2805A also supports UAC 1.0 specification which records audio form I2S interface or / b0 i4 m' x. q: O6 {# a
digital microphone input. Programmable audio sampling frequency from 8KHz to 48KHz and resolution of 8/16 bit $ u m* l/ V3 W( ^9 {( k
with mono or stereo.
1 t) p3 |( f4 h5 M0 }( o, z" ?The major functions of SN9C2805A include controlling the CMOS sensor, receiving the image data, converting it to
" c1 b8 l' e, }4 \1 Gvideo stream, and then sending data to the host via USB. It’s compliant with USB 2.0 High-Speed (HS) and USB
0 m0 X) a( G" ?) LVideo Class (UVC) 1.1/1.5 over ISO or Bulk in transfer. Compliance with the public standards makes SN9C2805A
Z; {& Q: x4 R8 ], E( g' [easy to be integrated into various fields of applications that need high quality video like high resolution tablet built-in * }: s: i1 I6 Y- E! @2 E
camera, camcorder, surveillance, video conference and machine vision (AI).
! t' n3 \8 l; W5 x6 }SN9C2805A supports both parallel and MIPI-CSI2 1/2-lane CMOS sensor interfaces and the performance of ISP is % \ {! q6 ^5 z. i9 B0 e' Q
up to 2592x1944@30fps or up to 1920x1080@60fps. The high performance Motion-JPEG engine and bit rate
" B6 `/ Y2 J2 }1 Q1 ]8 Vcontroller provides various compression ratios to meet bandwidth requirement. This system is controlled by the
9 Z0 z% a1 M- j& u- Yembedded micro-controller with the built-in statistics of AE / AWB. The flexible architecture includes the mask ROM,
( c! g8 `; F* b5 ]. [internal RAM and external serial-flash which can store the customized codes and parameters.( A4 q7 e6 g T% ^; a# p* `# f' [
There are 3 built-in regulators and no needs of external oscillator, these features make it able to further save BOM
' P0 X7 a* }& a1 k$ F5 J [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