The SN9C2805A is a high resolution webcam controller. Besides improved image quality, this generation of ISP " @. a4 J8 H% O$ K
supports wide dynamic range (WDR) and vertical lens distortion correction (VLDC) to bring better visual 7 q4 N$ w8 b! l9 g8 P
experiences. It not only brings less noise image for human eye but also makes the analysis work in machine-vision
0 W- w$ u0 D! U7 Q7 Y; Z; reasier. For modern high resolution and AI applications, SN9C2805A would be a higher performance and cost
: i. h* s3 e, x7 c& P% t: q1 t Geffective choice.
0 h6 ^$ j- o. F$ ~' }. y, K" {Besides video ISP, SN9C2805A also supports UAC 1.0 specification which records audio form I2S interface or 0 D: }5 y5 c+ s- o
digital microphone input. Programmable audio sampling frequency from 8KHz to 48KHz and resolution of 8/16 bit 5 ^8 b" C- d: ~; V' d
with mono or stereo.4 ~& g' E; h7 \4 S
The major functions of SN9C2805A include controlling the CMOS sensor, receiving the image data, converting it to
c! h0 ~2 b* e2 f* |) Qvideo stream, and then sending data to the host via USB. It’s compliant with USB 2.0 High-Speed (HS) and USB
& Y7 {4 `/ _/ q7 E; XVideo Class (UVC) 1.1/1.5 over ISO or Bulk in transfer. Compliance with the public standards makes SN9C2805A
) I$ I! O# }4 u2 T8 Q U$ I$ aeasy to be integrated into various fields of applications that need high quality video like high resolution tablet built-in ! b# d# U- K8 T) p7 I! j
camera, camcorder, surveillance, video conference and machine vision (AI).
: d- M- C( A7 t% \) P( v: f2 |SN9C2805A supports both parallel and MIPI-CSI2 1/2-lane CMOS sensor interfaces and the performance of ISP is 1 e# o1 @# N& d' i1 g; n
up to 2592x1944@30fps or up to 1920x1080@60fps. The high performance Motion-JPEG engine and bit rate 4 Z8 S# G8 o" B1 b3 J- V" _% J
controller provides various compression ratios to meet bandwidth requirement. This system is controlled by the . D3 @$ y# \4 ^( w$ {9 {
embedded micro-controller with the built-in statistics of AE / AWB. The flexible architecture includes the mask ROM,
# J% F. c# y3 {- x' U' d; Sinternal RAM and external serial-flash which can store the customized codes and parameters.
# M( ]% g6 n: @3 p! P' TThere are 3 built-in regulators and no needs of external oscillator, these features make it able to further save BOM # X9 |9 Q& d5 ]7 C6 `
and PCB area. The SN9C2805A is the best choice for the compact modern electronic product design.5 { C/ e. f4 p9 p/ n
SN9C2805A_0.02.pdf
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发表于 2024-3-22 13:13:08