Allied Vision Technologies AVT Marlin Technical Manual page 153

Video formats, modes and bandwidth
Format Mode
0
1
2
3
0
4
5
6
7
Resolution
160 x 120 YUV444
24 bit/pixel
320 x 240 YUV422
16 bit/pixel
640 x 480 YUV411
12 bit/pixel
640 x 480 YUV422
16 bit/pixel
640 x 480 RGB
24 bit/pixel
640 x 480 (Mono8)
8 bit/pixel
640 x 480 Y (Mono16)
16 bit/pixel
640 x 480 Y (Mono16)
Reserved
Table 67: Format_0
As an example, VGA Mono8 @ 60 fps requires four lines (640 x 4 = 2560 pix-
els/byte) to transmit every 125 µs: this is a consequence of the sensor's line
time of about 30 µs, so that no data needs to be stored temporarily. It takes
120 cycles (120 x 125 µs = 15 ms) to transmit one frame, which arrives every
16.6 ms from the camera. Again no data need to be stored temporarily.
Thus around 64 % of the available bandwidth is used.
60 30 15
fps fps fps
1/2H 1/4H
80p 40p
60q 30q
1H 1/2H
320p 160p
160q 80q
2H 1H
1280p 640p
480q 240q
2H 1H
1280p 640p
640q 320q
2H 1H
1280p 640p
960q 480q
4H 2H 1H
2560p 1280p 640p
640q 320q 160q
2H 1H
1280p 640p
640q 320q
MARLIN Technical Manual V2.4.0
7.5 3.75
fps fps
1/8H
20p
15q
1/4H 1/8H
80p 40p
40q 20q
1/2H 1/4H
320p 160p
120q 60q
1/2H 1/4H
320p 160p
160q 80q
1/2H 1/4H
320p 160p
240q 120q
1/2H 1/4H
320p 160
80q p40q
1/2H 1/4H
320p 160p
160q 80q
153