SR1913 和 nextchip NVP2610 超級比一比

好久沒有注意ic的零組件市場,

聽說Nextchip 出了一顆 NVP2610,  用在車用攝影機，可以做到 18mm x18mm


18mm x18mm在車用領域以許很小...

但我還有做到更小的!!

最近拿SR1913 去做內視鏡攝影機,做到 4.8mm 的直徑!!



如果車用的18mm x18mm是很小的話, 那麼 4.8mm的寬度 應該算是細菌了吧...


 

Customize ePTZ Mega pixel input / CVBS output Video door phone camera Module by RS485

Customize ePTZ Video Door Phone Module  and controlled by RS485.

It connect the Mega pixel CMOS sensor. And Output is analog CVBS.

It have enough video information to do the ePTZ.


The Module embedded the hardware base Lens distortion compensation and  Keystone correction.




Hardware spec (SR1913 inside):

Size	Customize > 18mm x18 mm
Image Sensor	HM1375 Mega pixel Sensor
Video Format	NTSC / PAL
Horizontal Resolution	480 lines
Main chip	SR1913
SNR	> 50 dB
Electronic Shutter	1 s ~ 1/10000s
ePTZ	up to 10x digital zoom
Control interface	RS485 PELCO-D
White Balance	Auto
Gain Control	Auto
AE control	Auto
Mirror Function	yes
Video Output	1.0 Vp-p/75Ω
Storage Temperature	-20 ° C ~ 60 ° C
Operating Temperature	-30 ° C ~ 80 ° C

Powerful  ePTZ by RS485

SR1913 smallest size ( 3.6mm x7mm ) Video encoder with frame rate buffer

Download promotion material

 Dwonlaod link



General Description (Replace LC822973-04V1-TBM-GBE / LC822973-04V-TBM-GBE )

SR1913 is the smallest size 3.6mm x7mm BGA video encoder with frame rate buffer.

It is an advanced hardware-based  image processor designed to provide programmable wide 

angle lens distortion compensation and  keystone compensation.

This device accepts  digital video input ports for 10-bit interlaced or progressives.   

Output for  digital and analog CVBS video output with 10-bit progressive or interlace scan video 

with frame rate conversion.


SIZE：3.6mm x 7mm




DATASHEET:

Download link

IC system block:

It is powerful than SANYO LC822973-04V1-TBM-GBE / LC822973-04V-TBM-GBE








1.ePTZ (ROI)
2.Keystone correction
3. Lens distortion compensation ( Fisheye Correction) : up to horizontal  180 degree
4. Dynamic Line drawing
5. Powerful OSD.












IC comparison Table

Model	SANYO LC822973 LC822973-04V-TBM-GBE LC822973-04V1-TBM-GBE (2008 EOL )	SR1913
Process	0.165	0.11
operation temperature	-30~85 degree	-45~85 degree
Power consumption	180mW	~120mW (VGA) ~160mW (1.3M) Just only video convert
BGA pin	63	72
BGA size	4mm x5mm	3.6mm x 7mm
Video inputn resolution (YUV 422 progressive)	640X480	1280X720@30FPS 1.3M @ 25fps
Output	CVBS	CVBS or BT.656
ROI		Any digital zoom
Digital Algorithm		Fisheye correction Keystone OSD/line drawing PIP up to 3 sub-windows 8 private mask

  Advanced frame rate control technology


Whatever CMOS sensor output is, SR1913 will smoothly convert progressive signal to CVBS.

You can configure your CMOS sensor that is at low frame rate  in low lux environment 

 At low lux environment, the exposure will rise












Mega pixel  YUV 422 Progressive input source and CVBS output

The video  source is more than VGA.

It will have enough video information to do the ePTZ and Keystone.


ePTZ:

 

Keystone:

Camera module IC  diagram



Case 1: AUTO BOOT ( TO save your eBOM and PCB dimension)

This is simple mode that is digital CMOS to CVBS without any special function

Case 2: MCU Mode

If you need fisheye correction, keystone, ePTZ.......

Case 3: MCU + AUTO BOOT

If you want to powerful function and need extra control.....

  Application


Endoscope / snake camera  / spy camera

Door Phone camera  with ePTZ  (digital zoom / ROI )

Car rear view  camera

SR1913 :全世界最小的 CVBS output (tv out) video encoder 用在內視鏡 內窺鏡 工業蛇管 ，取代三洋 SANYO LC822973-04V-TBM-GBE

如果您是做內視鏡 蛇管的廠商,
應該都有聽過  三洋  SANYO LC822973-04V-TBM-GBE

這顆會這麼有名，是因為他的寬度只有4mm
如果拿去做直徑5.5mm大小的內視鏡，是足夠的!



但是很可惜，三洋 SANYO LC822973-04V-TBM-GBE
 早在2008 年就停產, 現在廠商使用的大多是用他的庫存貨


除了DATE CODE  太久 ，那也就算了,

這顆ic 的庫存也快要沒有了...


SR1913 :全世界最小的 CVBS output (tv out)  video encoder 用在內視鏡 內窺鏡 工業蛇管 ，取代三洋  SANYO LC822973-04V-TBM-GBE



目前市面上的 TV OUT encoder 一籮筐,

但是他們的設計只主要是針對於消費性的市場,

沒有人為了工業檢測或是安全監控 市場專門開一顆像樣的IC



這顆ic主要是針對於,工業檢測攝影機 ( endoscope / snake camera ), 直徑5.5mm 的dimension以下的攝影機



↓目前這類的攝影機，鏡頭的直徑大多是在 5.5mm 以上, 主要卡在tv out encoder 的體積限制!

SR1913 他的體積大小只有 3.6mm ,

這樣做出來的攝影機，理論上可以到4.6mm 的直徑寬度

除此之外,還有 Frame buffer,

不管前面CMOS sensor吐出 幾張畫面   N  介於  1~30 , 都可以順利轉成CVBS

如果在低召度時候，可以控制sensor 吐出比較低的 frame rate,

如此,曝光度就會拉高！





  


SR1913 可以吃1M  的ITU.656 的訊號進來,

由於解析度夠高，但是輸出的CVBS 大概就是720x480,

可以利用這一點做到e PTZ  不會有馬賽克的!




還有一些奇奇怪怪功能, 比如魚眼修正，OSD, keystone 修正, muti widnows,






   





ic 的系統架構圖

目前業界主要是用 SANYO LC822973 這一顆tv out encoder 去做 endoscope snake camera

但是SANYO LC82973 早在2008 八月已經停產

使用的ic 都是庫存貨，date code超過五年了!!!!



以下這張tabel, 是這兩款ic的比較圖

Model	SANYO LC822973 (2008 八月停產)	SR1913
Process	0.165	0.11
operation temperature	-30~85 degree	-45~85 degree (工業規格以上)
Power consumption	180mW	~120mW (VGA) ~160mW (1.3M) Just only video convert
BGA pin	63	72
BGA size	4mm x5mm	3.6mm x 7mm
Video inputn resolution (YUV 422 progressive)	640X480	1280X720@30FPS 1.3M @ 25fps
Output	CVBS	CVBS or BT.656
ROI		Any digital zoom
Digital Algorithm		Fisheye correction Keystone OSD/line drawing PIP up to 3 sub-windows 8 private mask

EVB board 即將要完成！