Andor Technology Zyla sCMOS 4.2 PLUS, Hardware Manual

Page: 26 / 78

version 2.0 rev 18 Feb 2021
26
2.5 Sensor Readout Optimization
To allow the camera to be optimized for the widest range of applications it is important to have flexibility in the
readout options available, some of these include the following:
• Gain Channel Control
• Pixel Readout Rate
• ROI sub image settings
• Triggering / Synchronization options (see Section 2.6 )
The effect of different shutter modes, readout speed and different ROIs on frame rates is shown in Table 6 .
Table 6: Maximum sustainable frame rates for all electronic shutter modes, readout speeds and gain
channel combinations for various (vertically centred) ROIs
Region
of
Interest
Shutter
Mode
Bit-
depth
Zyla 5.5 3-tap Zyla 5.5 10-tap Zyla 4.2 10-tap Zyla 5.5 USB 3.0 Zyla 4.2 USB 3.0
200
MHz
560
MHz
200
MHz
560
MHz
216
Mhz 540
MHz
200
MHz
560
MHz
216
Mhz 540
MHz
2560 x
2160
Rolling
12-bit 30 30 36 100 - - 36 40 - -
16-bit 22 22 36 75 - - 30 30 - -
Global
12-bit 18 30 18 49 - - 18 40 - -
16-bit 18 22 18 49 - - 18 30 - -
2048 x
2048
Rolling
12-bit 38 39 38 105 40 100 38 53 40 53
16-bit 29 29 38 98 40 100 38 40 40 40
Global
12-bit 19 39 19 52 - - 19 52 - -
16-bit 19 29 19 52 - - 19 52 - -
1920 x
1080
Rolling
12-bit 72 79 72 199 76 192 72 107 76 107
16-bit 59 59 72 199 76 192 72 80 76 80
Global
12-bit 35 79 35 97 - - 35 98 - -
16-bit 35 59 35 97 - - 35 80 - -
512 x
512
Rolling
12-bit 152 419 152 419 161 403 152 419 161 403
16-bit 152 419 152 419 161 403 152 419 161 403
Global
12-bit 73 201 73 201 - - 73 201 - -
16-bit 73 201 73 201 - - 73 201 - -
128 x
128
Rolling
12-bit 596 1639 596 1639 631 1578 596 1639 631 1578
16-bit 596 1639 596 1639 631 1578 596 1639 631 1578
Global
12-bit 260 716 260 716 - - 260 716 - -
16-bit 260 716 260 716 - - 260 716 - -
NOTE: The write speed of the PC hard drive can impose a further restriction on the maximum sustainable
frame rate.
2.5.1 Gain Channel Control
The Zyla offers the user a choice of two 12-bit gain channels (i.e. high or low gain) or a combined ‘16-bit’
setting. The user can choose to stay with 12-bit single gain channel data if dynamic range is not critical,
resulting in smaller file sizes. This in turn offers faster frame rates when continuously spooling through the
Camera Link interface and writing to hard disk. The 16-bit dual gain channel should be chosen if dynamic
range is more important than having the fastest frame rates. Please refer to
Section 2.4 for more detailed
explanation of the dual amplifier dynamic range operation.