Performance Characteristics (continued)
Trigger System (continued)
2
I C
2
Trigger on I C (Inter-IC bus) serial protocol at a start/stop condition or user defined frame with address and/or data
values. Also trigger on Missing Acknowledge, Restart, EEPROM read, and 10 bit write.
SPI
Trigger on SPI (Serial Protocol Interface) data pattern during a specific framing period. Support positive and negative Chip
Select framing as well as clock Idle framing and user specified number of bits per frame.
Duration
Trigger on a multi-channel pattern whose time duration is less than a value, greater than a value, greater than a time value
with a timeout value, or inside or outside of a set of time values.
Minimum duration setting: 5 ns
Maximum duration setting: 10 s
Autoscale
Finds and displays all active analog and digital (for 54621D/54622D/54641D/54642D) channels, sets edge trigger mode on
highest numbered channel, sets vertical sensitivity on analog channels and thresholds on digital channels, time base to
display ~1.8 periods. Requires minimum voltage ꢁ10 mVpp, 0.5ꢂ duty cycle and minimum frequency ꢁ50Hz.
Analog Channel Triggering
Range (internal)
± 6 div from center screen
Sensitivity*
54621A/D, 54622A/D, 54624A: Greater of 0.35 div or 2.5 mV
54641A/D, 54642A/D:<10mV/div: greater of 1 div or 5mV; ≥10mV/div: 0.6 div
Coupling
AC (~3.5 Hz on 54621A/D, 54622A/D, 54624A.
~10 Hz on 54641A/D, 54642A/D), DC, noise reject, HF reject and LF reject (~ 50 kHz)
Digital (D15 - D0) Channel Triggering (54621D, 54622D, 54641D, and 54642D)
Threshold Range (used defined) ± 8.0 V in 10 mV increments
Threshold Accuracy*
Predefined Thresholds
± (100 mV + 3ꢂ of threshold setting)
TTL = 1.4 V, CMOS = 2.5 V, ECL = -1.3 V
External (EXT) Triggering
Input Resistance
54621A/D, 54622A/D, 54624A: 1 MΩ, ± 3ꢂ
54641A/D, 54642A/D: 1 MΩ ± 3ꢂ or 50 Ω
Input Capacitance
Maximum Input
54621A/D, 54622A/D, 54624A: ~ 14 pF
54641A/D, 54642A/D: ~13pF
CAT I 300 Vrms, 400 Vpk, CAT II 100 Vrms, 400 Vpk
With 10073C/10074C 10:1 probe: CAT I 500 Vpk, CAT II 400 Vpk
5 Vrms with 50-ohm input
Range
54621A/D, 54622A/D, 54624A: ± 10 V
54641A/D, 54642A/D: DC coupling: trigger level ± 8V; AC coup./LFR: AC input minus trig level not to exceed ± 8V
Sensitivity
Coupling
54621A/D, 54622A/D, 54624A: dc to 25 MHz, < 75 mV; 25 MHz to max bandwidth, < 150 mV
54641A/D, 54642A/D: dc to 100 MHz, < 100 mV; 100 MHz to max bandwidth, < 200 mV
AC (~ 3.5 Hz), DC, noise reject, HF reject and LF reject (~ 50 kHz)
Auto probe sense for 54621A/622A/641A/642A
Probe ID (Agilent/HP and
Tek compatible)
*
Denotes Warranted Specifications, all others are typical. Specifications are valid after a 30-minute warm-up period and ± 10 ꢀC from firmware calibration temperature.
17
HP [ HEWLETT-PACKARD ]
