The SN9C2805A is a high resolution webcam controller. Besides improved image quality, this generation of ISP
) ~# _' z" y0 }7 ?1 ~supports wide dynamic range (WDR) and vertical lens distortion correction (VLDC) to bring better visual + m5 o I0 t/ K8 Q
experiences. It not only brings less noise image for human eye but also makes the analysis work in machine-vision " O9 u% @* i: }( D; H; m+ S; U
easier. For modern high resolution and AI applications, SN9C2805A would be a higher performance and cost
; g1 l J" ^6 b. y& U+ H: Ueffective choice.' c" _( T- F& _+ X( X
Besides video ISP, SN9C2805A also supports UAC 1.0 specification which records audio form I2S interface or
! y" w3 x7 |7 d' p0 }digital microphone input. Programmable audio sampling frequency from 8KHz to 48KHz and resolution of 8/16 bit . v, v5 T( n9 ~; |) y6 n
with mono or stereo.+ i" n- f1 w9 `& M# K
The major functions of SN9C2805A include controlling the CMOS sensor, receiving the image data, converting it to 4 E r9 n* s! b% k; ]$ {( L3 A9 p
video stream, and then sending data to the host via USB. It’s compliant with USB 2.0 High-Speed (HS) and USB 2 n$ g# c: F0 ~
Video Class (UVC) 1.1/1.5 over ISO or Bulk in transfer. Compliance with the public standards makes SN9C2805A Y; L- b" m+ _& |- I) [
easy to be integrated into various fields of applications that need high quality video like high resolution tablet built-in
, O! |$ [( m7 s4 r5 u+ ^# W% ycamera, camcorder, surveillance, video conference and machine vision (AI).
( \& p o& R3 ^0 X8 _: |" a) PSN9C2805A supports both parallel and MIPI-CSI2 1/2-lane CMOS sensor interfaces and the performance of ISP is T' M3 d4 G! D
up to 2592x1944@30fps or up to 1920x1080@60fps. The high performance Motion-JPEG engine and bit rate
; H) k' V4 [& G2 W! q7 ]% Ccontroller provides various compression ratios to meet bandwidth requirement. This system is controlled by the
9 U; l/ U" I s! P+ r1 Xembedded micro-controller with the built-in statistics of AE / AWB. The flexible architecture includes the mask ROM,
# T! a6 \" i' Cinternal RAM and external serial-flash which can store the customized codes and parameters.
$ v- k5 s/ Y" _2 N9 H0 DThere are 3 built-in regulators and no needs of external oscillator, these features make it able to further save BOM
( \! Y0 }5 B, m' D9 {and PCB area. The SN9C2805A is the best choice for the compact modern electronic product design.# ~" ^( R3 A( L* b1 u, K5 I# I6 u$ q
SN9C2805A_0.02.pdf
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发表于 2024-3-22 13:13:08