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The Tektronix DC 5009 single-width Programmable Universal Counter / Timer provides all of the measurement functions of the higher performance DC 5010/ DC 510 except rise time/fall time, null, and totalize A ± B. The powerful reciprocal-frequency measurement technique allows up to eight digits of resolution of low-frequency signals in one second or less of measurement time. The DC 5009 has the same automatic averaging feature as the DC 5010/ DC 510; selected averaging of up to 108 events provides usable time-interval resolution of 5 ps. Channel A and Channel B Input; Frequency Range - >0 to >= 135 MHz DC coupled. <= 10 Hz to >= 135 MHz AC coupled. Sensitivity - <= 20 mV RMS (56.6 mV p-p) to >= 100 MHz, 40 mV RMS (113 mVp-p) from 100 MHz to >= 135 MHz, 115 mV p-p at minimum, pulse width of 3 ns. Attenuation Selectable - 1X, 5X. Impedance - 1 M-ohm ±2% paralleled by <= 30 pF. Trigger Level Range - +3.200 to -3.175 V with 25 mV resolution (X1), + 16 to -15.875 V with 125 mV resolution (x5). Trigger Level Accuracy - ±15 mV ±40 uV/°C referenced to 25°C. Dynamic Range - 3.2 <= input voltage <= +3.2 . X1: Vin p-p <= 3 V; X5: Vp-p 15 Vin (for input signal risetime p-p <= 3 V; X5: Vp-p 15 Vin); (for input signal risetimes <= 5 ns). Autotrigger Frequency Range - Sensitivity <= 125 mV p-p x attenuation; <= 20 Hz to >= 100 MHz. Range: ±3.2 V x attenuation. Resolution: 25 mV x attenuation. Independent Controls - Slope ±, attenuation 1X / 5X, Couple AC/DC, Source Internal/External. Frequency A Range: <= 100 uHz to >= 135 MHz. Accuracy Resolution: ±(Time Base Error x Frequency A). Rise / fall A Range - 7.4 ns to 3.05 hrs.
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