Copyright © 2020
Alazar Technologies Inc.
46
ATS9353 User Manual
Differences between ATS9351 and ATS9353
The ATS9353 and ATS9351 function very similarly. The main differences
between the ATS9353 and ATS9351 are:
•
PCIe interface: ATS9353 has a 1.6 GB/s 4-lane PCI Express Gen 2 interface
whereas the ATS9351 has a 1.6 GB/s 8-lane PCI Express Gen 1 interface.
•
External clock: External clock comes standard on ATS9353; it is an optional
upgrade on ATS9351.
o
While both ATS9353 and ATS9351 have the same maximum
external clock input frequency of 500 MHz, the ATS9353 minimum
external clock input frequency is 25 MHz, while it is 2 MHz for
ATS9351. Additionally, ATS9353 does not support slow external
clock mode.
o
The 10 MHz Reference PLL input on ATS9353 has a signal level of
200 mV
p-p
to 2 V
p-p
. On the ATS9351, it has a signal level of
500 mV
p-p
.
•
I/O connectors: The ATS9353 has SMA I/O connectors whereas the ATS9351
has a mix of BNC and SMA; however, they have the same functionality.
o
ATS9353 has an additional low-frequency analog input capable of
sampling at 200 KS/s. It allows users to acquire the value of an
analog input signal each time the waveform digitizer is triggered.
•
ATS9353 does not support multi-board Master/Slave systems
Pipelined Analog-to-Digital Converters
The ATS9353 uses pipelined flash ADCs with a maximum conversion rate of 500 MS/s.
If you use an external clock, you must provide a free-running clock to ensure
reliable operation. You also must follow all the timing specifications on the
external clock as described in
Using a pipelined architecture also introduces a lower limit on the sampling rate.
The minimum sample rate when using external clock with the ATS9353 is 25 MS/s.