The SN9C2805A is a high resolution webcam controller. Besides improved image quality, this generation of ISP 9 e, z7 C5 F, M/ a( M6 a
supports wide dynamic range (WDR) and vertical lens distortion correction (VLDC) to bring better visual / d9 I1 Y. S* \' O* Q8 z" `$ r
experiences. It not only brings less noise image for human eye but also makes the analysis work in machine-vision 0 i; q4 a0 h) a1 G Z! \" }
easier. For modern high resolution and AI applications, SN9C2805A would be a higher performance and cost
, o$ j# w8 o& _- meffective choice.
& f9 c p0 U. J6 b# t- x$ DBesides video ISP, SN9C2805A also supports UAC 1.0 specification which records audio form I2S interface or [2 _% h- {4 w0 o8 z
digital microphone input. Programmable audio sampling frequency from 8KHz to 48KHz and resolution of 8/16 bit ) v/ h# H) M% u: q$ d6 i$ A" i, u
with mono or stereo.
% T9 ~ L1 U9 \3 o$ QThe major functions of SN9C2805A include controlling the CMOS sensor, receiving the image data, converting it to
1 F W7 L: ^0 X+ z0 k6 ]6 j, Ovideo stream, and then sending data to the host via USB. It’s compliant with USB 2.0 High-Speed (HS) and USB ) e+ V) D, ~* j) D9 k
Video Class (UVC) 1.1/1.5 over ISO or Bulk in transfer. Compliance with the public standards makes SN9C2805A& n( _) h1 b! K8 L6 I
easy to be integrated into various fields of applications that need high quality video like high resolution tablet built-in
# \2 E3 H, a. X: s* `6 f+ Ncamera, camcorder, surveillance, video conference and machine vision (AI).
0 @( Y# w9 {9 n7 ?: v9 E. q/ tSN9C2805A supports both parallel and MIPI-CSI2 1/2-lane CMOS sensor interfaces and the performance of ISP is . h0 R$ n$ X7 s6 ~5 E3 I' U
up to 2592x1944@30fps or up to 1920x1080@60fps. The high performance Motion-JPEG engine and bit rate ; e' @) a2 j) u" I* ?8 E- }; l- g+ g
controller provides various compression ratios to meet bandwidth requirement. This system is controlled by the 3 P o) o1 K( k3 a$ }
embedded micro-controller with the built-in statistics of AE / AWB. The flexible architecture includes the mask ROM, : l# s+ S% ?+ Q, L
internal RAM and external serial-flash which can store the customized codes and parameters.. N: ]7 J% Z; |; r6 r
There are 3 built-in regulators and no needs of external oscillator, these features make it able to further save BOM
' a% G) U; h! S: @% Yand 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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