Matrix Vision mvBlueFOX - Reprogramming CCD Timing; CCD Sensor Data

20.5 mvBlueFOX-[Model]224 (1.9 Mpix [1600 x 1200]) 225
20.5.4 Reprogramming CCD Timing
Reprogramming the CCD Controller will happen when the following changes occur
• Changing the exposure time
• Changing the capture window
• Changing Trigger Modes
Reprogram time consists of two phases
1. Time needed to send data to the CCD controller depending on what is changed exposure : abt 2..3ms
window: abt 4..6ms trigger mode: from 5..90ms, varies with oldmode/newmode combination
2. Time to initialize (erase) the CCD chip after reprogramming this is fixed, abt 4.5 ms
So for example when reprogramming the capture window you will need (average values)
t
regprog
= change_window + init_ccd
t
regprog
= 5ms + 4.5ms
t
regprog
= 9.5ms
20.5.5 CCD Sensor Data
Device Structure
• Interline CCD image sensor
• Image size: Diagonal 8.923mm (Type 1/1.8)
• Number of effective pixels: 1600 (H) x 1200 (V) approx. 1.92M pixels
• Total number of pixels: 1688 (H) x 1248 (V) approx. 2.11M pixels
• Chip size: 8.50mm (H) x 6.8mm (V)
• Unit cell size: 4.4um (H) x 4.4um (V)
• Optical black:
– Horizontal (H) direction: Front 12 pixels, rear 48 pixels
– Vertical (V) direction: Front 10 pixels, rear 2 pixels
• Number of dummy bits: Horizontal 28 Vertical 1
• Substrate material: Silicon
MATRIX VISION GmbH