THORLABS SA201-EC, Руководство по эксплуатации

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Spectrum Analyzer Controller Chapter 7: Specifications
Rev H, November 30, 2021 Page 17
Chapter 7 Specifications
7.1. Output Characteristics
Item # SA201
Waveforms Sawtooth / Triangle
Default Waveform Saw tooth
Saw tooth Fall Time 1 ms Typical
Output Voltage Range 1 to 45 V ( Amplitude)
Max Supply Current
3
15 mA
Short Circuit Current
4
26 mA Max
Short Circuit Duration
4
Continuous
Offset Adj. Range 0 to 15 VDC
Amplitude Adj. Range 1 to 30 V
Rise Time Adj. Range
5
0.01 to 0.1 s @ 1X Sweep Exp.
1 to 10 s @ 100X Sweep Exp.
Sweep Expansion Settings
1X, 2X, 5X, 10X, 20X, 50X,
100X
Sweep Scale Error
6
±0.5%
Output Noise
7
1 mV
RMS
(~6.6 mV
PP
)
7.2. Trigger Characteristics
Item # SA201
Trigger Output Voltage TTL levels
VOH (R
L
= 50 W) 2 V Min
VOL (R
L
= 50 W) 0.5 V Max
Trigger Load Impedance 50 W / Hi-Z
Trigger Rising Edge
8
Ramp Start
Trigger Falling Edge
8
Ramp Midpoint
3
Achieved during the saw tooth waveform fall time. This is calculated by
𝐼 (mA) =
(𝐶
𝑝𝑖𝑒𝑧𝑜
(µF))(∆𝑉
𝑚𝑎𝑥
)
∆𝑡
𝑓𝑎𝑙𝑙
4
The output drive amplifier will current limit the load to 26 mA max. Although the unit may
operate continuously under these conditions, it is not recommended since the unit will heat
up causing stress to the electronics.
5
The rise time adjustment range for each sweep setting is as follows:
=(0.01 ×"Sweep Expansion Setting" )" to " (0.1×"Sweep Expansion Setting" )
6
Defined as the scaling error between 1X and any other gain settings (ex. 2X ± 0.5%).
7
Measured with SA200 series scanning head connected to output.
8
‘Ramp’ refers to the rising, or scanning, edge of the ‘Output’ waveform.