The SN9C2805A is a high resolution webcam controller. Besides improved image quality, this generation of ISP / H7 g& \( {" Q% e d+ ^
supports wide dynamic range (WDR) and vertical lens distortion correction (VLDC) to bring better visual 6 e. J4 e1 w+ C' |8 ^8 i- [
experiences. It not only brings less noise image for human eye but also makes the analysis work in machine-vision
, Z' l; D! V# D f. H2 e6 ^& Seasier. For modern high resolution and AI applications, SN9C2805A would be a higher performance and cost ! D6 n8 l( K2 W# x
effective choice.2 A) `* ~1 Y* Y+ h2 V; [( Y
Besides video ISP, SN9C2805A also supports UAC 1.0 specification which records audio form I2S interface or / i6 E1 ^* ]2 B
digital microphone input. Programmable audio sampling frequency from 8KHz to 48KHz and resolution of 8/16 bit * K6 U# k- w3 v+ U! O: V
with mono or stereo.
* c5 q) u3 u4 v( L0 y' LThe major functions of SN9C2805A include controlling the CMOS sensor, receiving the image data, converting it to 3 s4 f4 z) x- B5 r
video stream, and then sending data to the host via USB. It’s compliant with USB 2.0 High-Speed (HS) and USB
. y$ k) K" O7 `& T9 l; D: }% eVideo Class (UVC) 1.1/1.5 over ISO or Bulk in transfer. Compliance with the public standards makes SN9C2805A
6 y/ a" K; U9 s- Seasy to be integrated into various fields of applications that need high quality video like high resolution tablet built-in 8 Z5 L9 q- ]' V$ [
camera, camcorder, surveillance, video conference and machine vision (AI).1 S) \; s- B1 |5 F& Z* D/ p9 i
SN9C2805A supports both parallel and MIPI-CSI2 1/2-lane CMOS sensor interfaces and the performance of ISP is : R7 u5 h( c1 r
up to 2592x1944@30fps or up to 1920x1080@60fps. The high performance Motion-JPEG engine and bit rate 3 X6 G y, s( _' V6 p
controller provides various compression ratios to meet bandwidth requirement. This system is controlled by the ! U( G E7 B4 L7 P
embedded micro-controller with the built-in statistics of AE / AWB. The flexible architecture includes the mask ROM, / e5 @8 w# Z q; L# R. S! l
internal RAM and external serial-flash which can store the customized codes and parameters.
5 y" a1 ^, M7 k B+ M% `There are 3 built-in regulators and no needs of external oscillator, these features make it able to further save BOM
0 f. z; i A. c+ Cand PCB area. The SN9C2805A is the best choice for the compact modern electronic product design.. C B T- E% a N% q: v7 I( M
SN9C2805A_0.02.pdf
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发表于 2024-3-22 13:13:08