Guppy PRO Technical Manual
V4.1.2
166
As an example, VGA Mono8 @ 60 fps requires four rows (640 × 4 = 2560 pixels/
byte) to transmit every 125 µs: this is a consequence of the sensor's row time
of about 30 µs, so that no data needs to be stored temporarily.
It takes 120 cycles (120 × 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 (at S400) is used. Thus one
camera can be connected to the bus at S400.
The same camera, run at S800 would require only 32% of the available
bandwidth, due to the doubled speed. Thus up to three cameras can be
connected to the bus at S800.
Format Mode Resolution
240 fps 120 fps 60 fps 30 fps 15 fps 7.5 fps 3.75 fps
0
0
160 × 120 YUV (4:4:4)
24 bit/pixel
4H
640p
480q
2H
320p
240q
1H
160p
120q
1/2H
80p
60q
1/4H
40p
30q
1/8H
20p
15q
1
320 × 240 YUV (4:2:2)
16 bit/pixel
8H
2560p
1280q
4H
1280p
640q
2H
640p
320q
1H
320p
160q
1/2H
160p
80q
1/4H
80p
40q
1/8H
40p
20q
2
640 × 480 YUV (4:1:1)
12-bit/pixel
8H
5120p
1920q
4H
2560p
960q
2H
1280p
480q
1H
640p
240q
1/2H
320p
120q
1/4H
160p
60q
3
640 × 480 YUV (4:2:2)
16 bit/pixel
4H
2560p
1280q
2H
1280p
640q
1H
640p
320q
1/2H
320p
160q
1/4H
160p
80q
4
640 × 480 RGB
24 bit/pixel
4H
2560p
1280q
2H
1280p
960q
1H
640p
480q
1/2H
320p
240q
1/4H
160p
120q
5
640 × 480 (Mono8)
8 bit/pixel
8H
5120p
1280q
4H
2560p
640q
2H
1280p
320q
1H
640p
160q
1/2H
320p
80q
1/4H
160
p40q
6
640 × 480 Y (Mono16)
16 bit/pixel
4H
2560p
1280q
2H
1280p
640q
1H
640p
320q
1/2H
320p
160q
1/4H
160p
80q
7
Reserved
Table 88: Format_0