Sony DFW-SX900, DFW-X700 Operations in Normal Mode, When exposure time is 1 frame or shorter

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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 generated continuously inside the camera and images are sent accordingly. The images are output at the cycle of the frame rate set.

VD

Inside Camera

SUB

SG

Exposure Time

B

Isochronous	A
	C

Front Panel LED

	Green
Orange	Orange

Green

Orange

Green

Operations in Normal Mode

For the image output timing based on the falling edge of VDs generated inside the camera, image data output starts at the point the A period is passed, and the image data is output during the B period.

Camera		A [ms]	B [ms]	C [ms]

DFW-SX900	(7.5 fps)	Approx. 8	Approx. 120	Approx. 13

DFW-X700	(15 fps)	Approx. 2.4	Approx. 64	Approx. 2.6

Time until Data is Read Out and Output Period of Data

13

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Contents Technical Manual Table of Contents Outline Main FeaturesSystem Components Specifications Connection Pin assignment of Trig in connector female Pin assignment of camera connectorNames and Functions of Parts Dimensions Top View CCD Pixel LocationSpectral Characteristics Typical Values Camera Functions Functions Brightness Gain Shutter Auto ExposureWhite Balance Color TemperatureGamma SharpnessTrigger SaturationIsochronous Start/Stop One ShotTime until Data is Read Out and Output Period of Data Operations in Normal ModeWhen exposure time is 1 frame or shorter Operations in Normal ModeOperations When Frame Rate is Reduced When exposure time is over 1 frameInside Camera SUB Isochronous Front Panel LED Inputting trigger and pulse conditions External Trigger ShutterExternal Trigger Shutter Operations Camera Exposure Time Example of Acceptable Trigger IntervalCutting size Partial Scan ModeCSR F0F00600h Current Frame Rate CSR F0F00000h Camera Initialize Register Write OnlyCSR F0F00608h Current Video Format CSR F0F00604h Current Video ModeCSR F0F00614h Isochronous Transmission Start/Stop CSR F0F0060ChCSR F0F00624h Current Memory Channel CSR F0F00618h Memory SaveCSR F0F0061Ch One Shot CSR F0F00620h Memory Save ChannelCSR F0F00800h Brightness CSR F0F00804h Auto ExposureCSR F0F00808h Sharpness One-Push Auto White Balance CSR F0F0080Ch White BalanceCSR F0F00810h Hue CSR F0F00814h SaturationCSR F0F00818h Gamma CSR F0F0081Ch Shutter Auto exposure CCD IrisShutter OFF Auto Gain Control CSR F0F00820h GainCSR F0F00830h Trigger CSR F0F0088Ch Optical FilterCSR F1000108h Image Position For Format7Minimum Unit for DFW-SX900 Minimum Unit for DFW-X700 When DFW-SX900When DFW-X700 CSR F100000Ch Image SizeCSR F1000144h Byte per Packet CSR F1000110h Color Coding IDGeneral precautions for partial scan function Acquiring the camera control register base address Command Sending Procedure Until Images are DisplayedCheck available frame rates Example Format0 Mode3 Acquiring the format/mode/frame rateCheck available formats Check available video modesTo set the trigger mode Video transmission start commandAcquire the MaxSize/UnitSize/ColorCodingID Procedure for Format7Aquire the available mode for Format7 Acquire the CSR offset address of Mode0Specify the packet size Video transmission start command Format7Command Setting and Operation Timing One Shot CMD and actual operation timing Trigger Mode command and actual operation timingCamera Supplements List of Camera FunctionsIEEE1394 Cable Features Recommended Specifications for Personal Computer PCHost Adapter Card DFWA-400 Specifications Installing the Host Adapter Card Setup of the Driver PrecautionsPrecautions on software provided For Windows NT4.0 Setting up the driverSetting up the demonstration software For WindowsPage DFW-SX900