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CCD COLOR DIGITAL
CAMERA MODULE
DFW-SX900
DFW-X700
Technical
Manual
(Ver. 1.0) English
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DFW-SX900 DFW-X700 Table of Contents OUTLINE ..................................................................................................................... 1 MAIN FEATURES ...................................................................................................... 1 SYSTEM COMPONENTS .......................................................................................... 2 SPECIFICATIONS ..........................................................................................
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DFW-SX900 DFW-X700 OUTLINE The DFW-SX900/X700 is a C-mounted color digital video camera utilizing a 1/2-type PS IT CCD. The IEEE1394-1995 digital interface realizes a transfer speed of 400M bps and outputs of SXGA (1,280 · 960)/YUV (4 : 2 : 2)/7.5 fps with the DFW-SX900, XGA (1,024 · 768)/YUV (4 : 2 : 2)/15 fps with the DFW-X700. In addition, the DFW-SX900/X700 also adopts a primary color filter CCD to realize good color reproductivity, as well as a square pixel CCD to eliminate the need for asp
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DFW-SX900 DFW-X700 SYSTEM COMPONENTS Video Camera Module IEEE1394 Cable DFW-SX900/X700 (6-pin, 4.5 m) (Accessory) C-mount Lens (Option) • J6 · 11 MACRO (Canon) • 25MM HD LENS VF2509 (Canon) Host Adapter Card (Option) DFWA-400 2
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DFW-SX900 DFW-X700 SPECIFICATIONS Image sensor : 1/2-type progressive scan CCD Number of effective pixels DFW-SX900 : Approx. 1.45M pixels 1,392 (H) · 1,040 (V) DFW-X700 : Approx. 800K pixels 1,034 (H) · 779 (V) Output image size (Max.) DFW-SX900 : 1,280 (H) · 960 (V) DFW-X700 : 1,024 (H) · 768 (V) Interface format : IEEE1394-1995 Protocol : 1394-based Digital Camera Specification Version 1.30 Data format DFW-SX900 : 1,280 · 960 YUV (4 : 2 : 2) 1,024 · 768 YUV (4 : 2 : 2) 800 · 600 YUV (4 : 2 :
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DFW-SX900 DFW-X700 CONNECTION DFW-SX900/X700 DFWA-400 C-mount Lens IEEE1394 Cable Recommended Lens: Host Adapter Card • J6 · 11 MACRO (Canon) • 25MM HD LENS VF2509 (Canon) Host Equipment (PC, etc.) Display Must be above 17-inch and compatible with 1,280 · 1,024 display mode 4
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DFW-SX900 DFW-X700 NAMES AND FUNCTIONS OF PARTS 2 1 6 4 7 3 5 q Lens mount (C-mount) w Flange back hole Adjust the flange back using a standard head screwdriver. e Pilot lamp Blinks in green when the power is turned on, and in orange in the isochronous transmission (enabled) state. r Screw hole for tripod mounting t Camera fixing reference holes y TRIG IN (Trigger) connector Inputs the TTL level, negative polarity trigger signal. u Camera connector (IEEE1394 connector) Connect to the host equipm
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DFW-SX900 DFW-X700 DIMENSIONS DFW-SX900 DFW-X700 110 3.5 1" -32UNC 5 55 41 1/4" -20UNC 13 56 4-M3 (Effective Depth) Unit: mm 6 50 25.5 1 25 16.55 33.4
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DFW-SX900 DFW-X700 CCD PIXEL LOCATION DFW-SX900 Top View Total number of pixels : 1,434 (H) · 1,050 (V) Number of effective pixels: 1,392 (H) · 1,040 (V) Number of output pixels : 1,280 (H) · 960 (V) Unit cell size : 4.65 m m (H) · 4.65 m m (V) Output Pixel Area 2 V 1040 960 56 1280 40 8 1392 40 2 Effective Pixel Area H DFW-X700 Total number of pixels : 1,077 (H) · 788 (V) Number of effective pixels: 1,034 (H) · 779 (V) Number of output pixels : 1,024 (H) · 768 (V) Unit cell size : 6.25 m m (H)
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DFW-SX900 DFW-X700 SPECTRAL CHARACTERISTICS (TYPICAL VALUES) Example of spectral characteristics of CCD image sensor used for DFW-SX900 G R B 400 500 600 700 Wavelength [nm] Example of spectral characteristics of CCD image sensor used for DFW-X700 G B R 350 400 450 500 550 600 650 700 Wavelength [nm] 8 Relative Response Relative Response
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DFW-SX900 DFW-X700 FUNCTIONS The DFW-SX900/X700 differs from the conventional analog camera in that no video signals will be output by just supplying power. It will start operating when designated commands are written in the CSR (Control & Status Register) specified in the 1394-based Digital Camera Specification Ver.1.30. For details on the steps to video signal output and details of CSR, refer to “SETTINGS OF CAMERA CONTROL AND STATUS REGISTER” on page 20 and “COMMAND SENDING PROCEDURE UNTIL IM
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DFW-SX900 DFW-X700 FUNCTIONS Gain Used for setting the gain of the video signal amplifier. The gain can be set to 180 steps between the standard gain and maximum +18 dB. (1 step is not 0.1 dB.) By setting AUTO to ON, the gain will be automatically adjusted to the appropriate exposure. The range of operations is 0 to +18 dB. Shutter The CCD exposure time can be set between the maximum 2 seconds and minimum 1/20,000 seconds. By setting AUTO to ON, the exposure time will be automatically adjusted t
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DFW-SX900 DFW-X700 FUNCTIONS Gamma Used for setting gamma compensation to OFF, ON (1), or ON (2). OFF : Outputs CCD signals for image processing linearly. ON (1) : For obtaining natural gradation taking into account the characteristics of the monitor. ON (2) : For obtaining three-dimensional images with a subject that has a small luminance dynamic range. Gamma ON (2) Gamma ON (1) Gamma OFF Input Concept of Gamma Characteristics Sharpness Used for adjusting sharpness of the image. The sharpness c
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DFW-SX900 DFW-X700 FUNCTIONS Saturation Used for adjusting the saturation of the image. The saturation can be changed by about more than 150% from the factory setting. Isochronous Start/Stop Used for turning ON/OFF the output of IEEE1394 isochronous transmitted images. When image output is set to ON, the LED in front of the camera will light up in orange. One Shot Used for outputting only one image data (one frame) in the Isochronous OFF state. The difference between this function and Trigger de
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DFW-SX900 DFW-X700 FUNCTIONS Operations in Normal Mode Exposure and readout are repeated according to the VD pulses inside the camera. As the operating timing of the camera differs according to the frame rate, it is described below. The frame rates are shown in the following table. Camera When power on When frame rate is reduced DFW-SX900 7.5 fps = approx. 133 ms 3.75 fps = approx. 267 ms DFW-X700 15 fps = approx. 67 ms 7.5 fps = approx. 133 ms When exposure time is 1 frame or shorter VDs are ge
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DFW-SX900 DFW-X700 FUNCTIONS When the output frame rate is reduced (3.75 fps of DFW-SX900, 7.5 fps of DFW-X700), images will be read out from the CCD for every VD. However, as every other image is used, the images read out during the isochronous output period will not be used. VD Inside Camera SUB SG B Exposure Time A Isochronous C Green Green Front Panel LED Orange Orange Operations When Frame Rate is Reduced Camera A [ms] B [ms] C [ms] DFW-SX900 (3.75 fps) Approx. 8 Approx. 240 Approx.
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DFW-SX900 DFW-X700 FUNCTIONS When the frame rate is reduced in the extended exposing mode, the timing will be as follows. VD SUB Inside Camera SG Exposure Time B A Isochronous Green Green Front Panel LED Orange Operations in Extended Exposing Mode (In the Case of 2 Frames) When Frame Rate is Reduced Camera A [ms] B [ms] DFW-SX900 (3.75 fps) Approx. 8 Approx. 240 DFW-X700 (7.5 fps) Approx. 2.4 Approx. 128 Time until Data is Read Out and Output Period of Data 15
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DFW-SX900 DFW-X700 FUNCTIONS External Trigger Shutter This function is useful for the following cases. When capturing the images according to an arbitrary external trigger When capturing the images at same time with several cameras Inputting trigger and pulse conditions Input external triggers to the “TRIG IN” connector on the rear panel of the camera using the 4-pin connector provided. As shown in the figure, the pin 3 is the “Trigger Input” and the pin 2 is the “GND”. Design
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DFW-SX900 DFW-X700 FUNCTIONS Internal operations of camera in trigger shutter operation mode An about 3 m s width SUB pulse is generated immediately after trigger is input. Signals accumulated in the CCD sensor until then are eliminated, after which exposure is started. After the exposure time based on the shutter speed set passes, VD is generated inside the camera. (Specifically, VD is generated about 10 m s before exposure ends.) After the A period passes from the falling edge of the VD, image
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DFW-SX900 DFW-X700 FUNCTIONS The trigger acceptance prohibition period continues until all of CCD image has been transferred out of the camera. When the transfer frame rate is reduced (3.75 fps of DFW-SX900, 7.5 fps of DFW-X700), data will continue to be transferred even after readout of image has been completed as shown in the figure below. The trigger prohibition period continues until data transfer ends. All trigger inputs to the camera during the “Trigger Acceptance Prohibition Period” will
