The SN9C2805A is a high resolution webcam controller. Besides improved image quality, this generation of ISP
4 S; ?" t9 Z) m( d1 N s! |3 ^supports wide dynamic range (WDR) and vertical lens distortion correction (VLDC) to bring better visual
& N7 G$ \' M6 T+ H- @* H0 iexperiences. It not only brings less noise image for human eye but also makes the analysis work in machine-vision
" w U& m1 H' a7 N1 neasier. For modern high resolution and AI applications, SN9C2805A would be a higher performance and cost
' f9 n/ E5 w( Aeffective choice.* Q) y$ N8 d1 l5 _2 D& ~0 p
Besides video ISP, SN9C2805A also supports UAC 1.0 specification which records audio form I2S interface or
: Q6 y0 n7 v, Z) gdigital microphone input. Programmable audio sampling frequency from 8KHz to 48KHz and resolution of 8/16 bit : R4 _% g9 O9 L; |4 ^3 g
with mono or stereo.
; [; Q. Z" l: _1 d" [ \' rThe major functions of SN9C2805A include controlling the CMOS sensor, receiving the image data, converting it to E5 x# u& A6 z n. L
video stream, and then sending data to the host via USB. It’s compliant with USB 2.0 High-Speed (HS) and USB
% b& o/ o# b0 C3 pVideo Class (UVC) 1.1/1.5 over ISO or Bulk in transfer. Compliance with the public standards makes SN9C2805A
- ^; ?/ |3 A- E: L1 geasy to be integrated into various fields of applications that need high quality video like high resolution tablet built-in
) |/ j( ~! W* u: m6 S/ S9 I# jcamera, camcorder, surveillance, video conference and machine vision (AI).
$ ]# u" \ ]* G" q0 u8 @& `SN9C2805A supports both parallel and MIPI-CSI2 1/2-lane CMOS sensor interfaces and the performance of ISP is
& a& X3 Z, [4 kup to 2592x1944@30fps or up to 1920x1080@60fps. The high performance Motion-JPEG engine and bit rate
: o2 ]* x0 D( _4 x' \3 Ocontroller provides various compression ratios to meet bandwidth requirement. This system is controlled by the + S$ j L' m( R, N
embedded micro-controller with the built-in statistics of AE / AWB. The flexible architecture includes the mask ROM, 9 w _- h R- B& D& p" P. a
internal RAM and external serial-flash which can store the customized codes and parameters.
/ V* {( s0 z( U. s/ |# oThere are 3 built-in regulators and no needs of external oscillator, these features make it able to further save BOM ! M$ b& g9 l7 d, t* T
and PCB area. The SN9C2805A is the best choice for the compact modern electronic product design., V d* i7 X0 Q/ G/ |7 q
SN9C2805A_0.02.pdf
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