To Next Page

To Previous Page

| Functionality | 21

Figure 18: Timing in triggered simultaneous readout mode

Readout Timing

Sequential readout timing

By default, the camera is in free running mode and delivers images without any external control signals. The sensor

is operated in sequential readout mode, which means that the sensor is read out after the exposure time. Then the

sensor is reset, a new exposure starts and the readout of the image information begins again. The data is output on the

rising edge of the pixel clock. The signals FRAME_VALID (FVAL) and LINE_VALID (LVAL) mask valid image

information. The signal SHUTTER indicates the active exposure period of the sensor and is shown for clarity only.

Simultaneous readout timing

To achieve highest possible frame rates, the camera must be set to "Free-running mode" with simultaneous

readout. The camera continuously delivers images as fast as possible. Exposure time of the next image can start

during the readout time of the current image. The data is output on the rising edge of the pixel clock. The signals

FRAME_VALID (FVAL) and LINE_VALID (LVAL) mask valid image information. The signal SHUTTER indicates

the active integration phase of the sensor and is shown for clarity only.

Figure 19: Timing diagram of sequential readout mode

Specim FX17 User Manual

Questions and Answers: