Tektronix TDS2022C Service Manual page 22

Specifications
Table 3: Triggering system (cont.)
Characteristic Description
Trigger Coupling AC, DC, Noise Reject, High Frequency Reject, Low Frequency Reject
The External Trigger path does not have a DC blocking capacitor ahead of the trigger input circuit. The
rolloff associated with AC coupling happens after the input circuit. When attempting to trigger on an AC
signal that has a DC offset, care must be used to avoid overloading the input of the External Trigger
circuit. For signals that have a large DC offset, using Channel 1 or Channel 2 (and Channel 3 or Channel
4 for the TDS20X4B) with AC coupling is preferred.
Trigger Slope Rising Edge, Falling Edge
Measurement Style A) The minimum signal levels for achieving stable frequency indication on the Trigger
√ Sensitivity,
Frequency Counter within 1% of correct indication.
Edge-Type Trigger,
DC Coupled
Measurement Style B) Section 4 10.2 in IEEE Std. #1057. The minimum signal levels required for stable
edge triggering of an acquisition when the trigger Source is DC coupled.
Trigger Source
Channel Inputs
Ext
Ext/5
Trigger Frequency Readout typically stabilizes at 50% more signal than generates a stable visual display.
10
Sensitivity (Measurement
style A), typical
All products 1.5 div from DC to
10 MHz ( > 2 mV/div)
4 div from DC to 10 MHz
(2 mV/Div)
TDS1001C-EDU 3 div between 10 MHz
and 40 MHz
TDS1002C-EDU 3 div between 10 MHz
and 60 MHz
TDS2001C 3 div between 10 MHz
and 50 MHz
TDS2002C 3 div between 10 MHz
TDS2004C and 70 MHz
TDS1012C-EDU 3 div between 10 MHz
TDS2012C and 100 MHz
TDS2014C
TDS2022C 3 div between 10 MHz
TDS2024C and 200 MHz
All products 300 mV from DC to
100 MHz
TDS2022C 500 mV from 100 MHz to
TDS2024C 200 MHz
All products 1.5 V from DC to 100 MHz
TDS2022C 2.5 V from 100 MHz to
TDS2024C 200 MHz
TDS2000C and TDS1000C-EDU Series Oscilloscope Service Manual
Sensitivity (Measurement
style B)
1 div from DC to 10 MHz >
2 mV/div)
2.5 div from DC to 10 MHz
(2 mV/Div)
1.5 div between 10 MHz and
40 MHz
1.5 div between 10 MHz and
60 MHz
1.5 div between 10 MHz and
50 MHz
1.5 div between 10 MHz and
70 MHz
1.5 div between 10 MHz and
100 MHz
1.5 div from 10 MHz to
100 MHz
2.0 div above 100 MHz to
200 MHz
200 mV from DC to 100 MHz
350 mV from 100 MHz to
200 MHz
1 V from DC to 100 MHz
1.75 V from 100 MHz to
200 MHz