The SN9C2805A is a high resolution webcam controller. Besides improved image quality, this generation of ISP
& L5 [8 }; m5 }4 u* @supports wide dynamic range (WDR) and vertical lens distortion correction (VLDC) to bring better visual ' F8 W6 o+ d4 M- s6 _0 [7 T. z
experiences. It not only brings less noise image for human eye but also makes the analysis work in machine-vision
8 o; O6 v* v& i c+ Beasier. For modern high resolution and AI applications, SN9C2805A would be a higher performance and cost ( ^2 o4 u4 D: ~3 ] E, O
effective choice.
1 h$ a5 P, t9 u8 _, v7 ?$ e3 u0 d5 jBesides video ISP, SN9C2805A also supports UAC 1.0 specification which records audio form I2S interface or
. ^5 M" \) w4 r! d& } Gdigital microphone input. Programmable audio sampling frequency from 8KHz to 48KHz and resolution of 8/16 bit : ]' K' m) @- Q8 o
with mono or stereo.
9 }. ^0 Q1 d2 {. M8 |+ qThe major functions of SN9C2805A include controlling the CMOS sensor, receiving the image data, converting it to + I! m" }& v6 g5 w
video stream, and then sending data to the host via USB. It’s compliant with USB 2.0 High-Speed (HS) and USB $ R% J% v% k. u3 |* ]
Video Class (UVC) 1.1/1.5 over ISO or Bulk in transfer. Compliance with the public standards makes SN9C2805A
1 U' Z7 p2 a( a, W$ y. v; _easy to be integrated into various fields of applications that need high quality video like high resolution tablet built-in ) F; W+ y( p3 b) }8 G
camera, camcorder, surveillance, video conference and machine vision (AI).5 a! [1 U' u6 h6 M G9 V- x
SN9C2805A supports both parallel and MIPI-CSI2 1/2-lane CMOS sensor interfaces and the performance of ISP is U2 Q4 i: g* K& q' X
up to 2592x1944@30fps or up to 1920x1080@60fps. The high performance Motion-JPEG engine and bit rate * | k4 ]3 {. Q, T+ M7 K) ?
controller provides various compression ratios to meet bandwidth requirement. This system is controlled by the
* U2 T) y) L+ l' f4 ?embedded micro-controller with the built-in statistics of AE / AWB. The flexible architecture includes the mask ROM,
# z: l, c M5 P9 ninternal RAM and external serial-flash which can store the customized codes and parameters.! O' Z+ ~0 h- a t% A9 c* g
There are 3 built-in regulators and no needs of external oscillator, these features make it able to further save BOM
9 D) X+ I- v1 o6 g U G: ] ^and 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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