Tektronix TDS1001C-EDU, Service Manual

Page: 22 / 114

Speci fi cations
Table 3: Triggering system (cont.)
Characteristic Description
AC, DC, Noise Reject, High Frequency Reject, Low Frequency Reject Trigger Coupling
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
Frequency Counter within 1% of correct indication.
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 Sensitivity (Measurement
style A), typical Sensitivity (Measurement
style B)
All products 1.5 div from DC to
10 MHz ( > 2 mV/div)
4 div from DC to 10 MHz
(2 mV/Div) 1 div from DC to 10 MHz >
2 mV/div)
2.5 div from DC to 10 MHz
(2 mV/Div)
TDS1001C-EDU 3 div between 10 MHz
and 40 MHz
1.5 div between 10 MHz and
40 MHz
TDS1002C-EDU 3 div between 10 MHz
and 60 MHz
1.5 div between 10 MHz and
60 MHz
TDS2001C 3 div between 10 MHz
and 50 MHz 1.5 div between 10 MHz and
50 MHz
TDS2002C
TDS2004C 3 div between 10 MHz
and 70 MHz 1.5 div between 10 MHz and
70 MHz
TDS1012C-EDU
TDS2012C
TDS2014C 3 div between 10 MHz
and 100 MHz 1.5 div between 10 MHz and
100 MHz
Channel Inputs
TDS2022C
TDS2024C 3 div between 10 MHz
and 200 MHz 1.5 div from 10 MHz to
100 MHz
2.0 div above 100 MHz to
200 MHz
All products 300 mV from DC to
100 MHz 200 mV from DC to 100 MHz Ext
TDS2022C
TDS2024C 500 mV from 100 MHz to
200 MHz 350 mV from 100 MHz to
200 MHz
All products 1.5 V from DC to 100 MHz 1 V from DC to 100 MHz Ext/5
TDS2022C
TDS2024C 2.5 V from 100 MHz to
200 MHz 1.75 V from 100 MHz to
200 MHz
√ Sensitivity,
Edge-Type Trigger,
DC Coupled
Trigger Frequency Readout typically stabilizes at 50% more signal than generates a stable visual display.
10 TDS2000C and TDS1000C-EDU Series Oscilloscope Service Manual