Introduction

The sensor features one acquisition mode:

rolling shutter.

With the rolling shutter the lines are exposed for the same duration, but at a slightly different point in time:

Figure 1: Rolling shutter

Note: Moving objects together with a rolling shutter can cause a shear in moving objects.

Feature	Description
Manufacturer	Aptina
Sensor name	MT9M034
Max. frames per second	45.6
Device Structure	CMOS image sensor
SNR_max [dB]^1/	37.7
DNR (normal / HDR) [dB]^1/	63.4 / ≥ 115
Image size	1/3
Number of effective pixels	1280 (H) x 960 (V)
Unit cell size	3.75um (H) x 3.75um (V)
ADC resolution / output	12 bit → 8/10/(12)

¹ Measured accord. to EMVA1288 with gray scale version of the camera

Spectral Sensitivity

Figure 2: Spectral sensitivity mvBlueFOX3-1012dG

Figure 3: Spectral sensitivity mvBlueFOX3-1012dC

Timings

Name	Value
PixelClock	40 & 74,25
VerticalBlank	25

Free running mode

To calculate the maximum frames per second (FPS_max) in free running mode you will need following formula:

            (ImageHeight * (    1650    )) + ((VerticalBlank+2) *      1650    )
FrameTime =                 ------------                           ------------
                             PixelClock                             PixelClock

If exposure time is lower than frame time:

                1000000
FPS_max =   ----------------
               FrameTime

If exposure time is greater than frame time:

                1000000
FPS_max =   ----------------
               ExposureTime

Snapshot mode

To calculate the maximum frames per second (FPS_max) in snapshot mode you will need following formula:

            (ImageHeight * (    1650    )) + ((VerticalBlank+2) *      1650    )
FrameTime =                 ------------                           ------------
                             PixelClock                             PixelClock

FPS_max =                  1
           -----------------------------------
                 FrameTime + ExposureTime

Frame rate calculator

Note: The exposure time step width is limited to the sensor's row time of 41.3 us and therefore
- auto exposure with very low exposure times will perform with relatively large increments and
- exposure mode = TriggerWidth (if available) will perform with a jitter corresponding to the row time

Device Feature And Property List

Frame rate calculator
Mode:	Overlapping exposure and readout
Output image bit depth:	8 bit 12 bit 16 bit
Pixel clock:	74.25 MHz 66 MHz 40 MHz
Image width:	pixels
Image height:	pixels
Exposure time:	us
Device throughput:	Device Sensor Throughput Device Link Throughput
Link speed:	USB 2.0 USB 3.0
Frame rate (max):	1/s
	ExposureTime > FrameTime