USBee 的DX版本的确比较强，原理图在哪儿能找到？示波通道达到24MSPS，模拟信道按双通道40M带宽设计，性能如下：
Analog Channels
2
Maximum Analog Sample Rate [1]
24 Msps
Analog Bandwidth
40 MHz
Input Impedance
1M Ohm/30 pF
Analog Input Voltage Range
-10V to +10V
Analog Sensitivity
78mV
Analog Resolution
256 steps
Channel Buffer Depth [2]
>200k Samples
Volts per Division Settings
100mV to 5V in 6 steps
Time per Division Settings
100ns to 2s in 23 steps
Trigger Modes
Auto, Normal, Analog and Digital Triggers
Analog Trigger Voltage
Between -10V and +10V
Cursors
2 Time and 2 Voltage
Voltage Display Offset
Up to maximum inputs
Time Display Offset
Up to available buffer depth
Trigger Position Setting
10% to 90%
Measurements
Min, Max
Digital Channels
16
Maximum Digital Sample Rate [1]
24 Msps
Internal Clocking
Yes
External Clocking
Yes – through Parallel Decoder
Digital Trigger Levels
4
Digital Trigger Qualifiers
Rising Edge, Falling Edge, High,Low
Trigger Prestore
Yes
Trigger Poststore
Yes
Sample Clock Output
Yes
Maximum Digital Input Voltage
+5.5V
Digital Input Low Level
< 0.8V
Digital Input High Level
> 2.0V |
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