HP 5372A Frequency and Time Interval Analyzer

The general-purpose HP 5372A modulation domain analyzer, a superset of the HP 5371A, captures frequency, phase, or time intervals at extremely high speeds. The HP5372A can make up to 13.3 million measurements per second for signals with a frequency range of up to 500 MHz. An optional channel expands the range to 2 GHz. The HP5372A combines a choice of over 60 arming and triggering configurations with built-in analysis functions including math, statistics, and limit testing.

Unique to the HP 5372A (compared with the HP 5371A) are deeper memory, hardware histograms, and FFT capabilities for high-performance and more sophisticated jitter spectrum analysis and phase noise studies. The HP5372A lets you: analyze jitter effects, characterize the transient and steady state responses of a VCO, examine frequency or phase modulation, measure frequency stability, analyze computer peripherals, or measure fast hopping radio signals.

[ Features ]

Broad selection of measurements
Quick and easy-to-use push button analysis
Graphic display and histograms for added visual meaning from collected data
200 ps single-shot, Least Significant Digit (LSD), 10 digits/second for frequency measurements (2 ps LSD for averaged measurements)

Broad measurement selection

Measurements include frequency and period; time interval, +/- time interval, and continuous time interval; phase deviation, and phase A relative to B; time deviation (jitter); and specialized measurements including pulse width, duty cycle, and rise/fall time.

Quick and easy analysis

Built-in functions, including window margin analysis from time interval histogram data, averaged results, and statistics, simplify measurement analysis. Calculated Allan Variance specifies frequency stability in the time domain.

Graphic display

Results reveal maximum information at a glance. Markers provide read-out and analysis of your measurements. Numerical results can also be displayed. Send your graphics output directly to an HP-GL plotter, or an HP-IB graphics printer.

200 ps single-shot LSD

There is usually no need to repeat a signal simply to accommodate your test equipment. If you can work with a repetitive signal, the HP 5372A provides signal averaging to improve resolution.

[ Specifications ]

Single Frequency Measurement

	Least Significant Digit Displayed: 

		 +/- ((200 ps) / (Sample Interval)) x Frequency

	Resolution:  

		+/- ((150 ps rms + (1.4 x Trigger Error)) / (Sample Interval) 
		x Frequency

	Accuracy:  +/- Resolution +/- (Time Base Aging x Frequency)


Continuous Frequency Measurements (mean estimation)

	rms Resolution  (for number of measurements/block >3):

		((square root of (13.5) x (150 ps rms + 1.4 x Trigger Error)) / 
		((# of Blocks)^1/2 x (# of Meas./Block)^3/2 x Sample Interval) x Freq.

	Accuracy: +/- Resolution +/- (Time Base Aging x Frequency)


Time Interval Measurements

	Least Significant Digit Displayed:  

		+/- ((200 ps) /( square root of (N)))
		N = number of measurements averaged

	Resolution:  +/- ((150 ps rms +/- Start Trigger Error 
		+/- Stop Trigger Error) / (square root of (N)))

	Accuracy:  +/- Resolution +/- (Time Base Aging 
		x Time Interval) ą Trigger Level Timing Error 
		+/- 1 ns Systematic Error

	(Systematic error can be reduced to <100 ps with the HP J06-59992A) Time 
	Interval Calibrator)


Input: Channels A and B
The following refers to an HP 5372A with HP 54002A pods installed.

	Range:  dc to 500 MHz.

	Sensitivity:  (x1 attenuation, minimum hysteresis)

			15 mV rms sine wave (45 mV pk-pk), typically 10 mV rms.

			45 mV pk-pk for pulse input.

	Hysteresis control is available to reduce input sensitivity to trigger noise.

	Dynamic Range: 

		x1:45 mV pk-pk to 2 V pk-pk.

		x2.5 attenuator: 115 mV pk-pk to 5 V pk-pk.

	Minimum Pulse Width: 

		1 ns for all measurement modes except holdoff arming.
		1.5 ns with holdoff arming.


Input: Channel C (option 030)
Type N Connector

	Range:  100 MHz - 2 GHz (divide-by-4 prescaler).

	Sensitivity:  (0 dB attenuation)

		100 MHz to 1.5 GHz: -25 dBm.
		1.5 GHz to 2 GHz: -20 dBm.

	Dynamic Range: 

		100 MHz to 1.5 GHz: -25 dBm to +7 dBm.

		1.5 GHz to 2 GHz: -20 dBm to +7 dBm.

		Trigger level fixed at 0V NOMINAL.

	Impedance:  ac coupled, 50 ohm, VSWR <2.5.


External Arm
	Range:  dc coupled to 100 MHz.

	Minimum Pulse Width:  5 ns

	Impedance:  1 Mohm NOMINAL, shunted by <50 pf.

	Triggering adjustable in 20 mV steps

		Range +/-5.00 V


Measurement Control
	Holdoff or Sample: 

		0 to 4 x 1e9 events (65,000 events with fast meas. mode); 2 ns to 
		8.0 seconds (131 usec with fast meas. mode).

	Edge Holdoff or Sampling:  HP 5372A becomes armed after a delay from edge 
	as follows:

		Ext Arm arms A or B	<15 ns
		B arms A, A arms B	<8 ns
		A arms A, B arms B	<5 ns

	Interval Sampling:  100 ns to 8 seconds (131 usec with fast meas. mode).

	Cycle Sampling:  Cycles of input signal or 500 MHz time base in 
	discrete steps: 2^4, 2^8, 2^12, 2^16, 2^20, 2^24, 2^28 (2^4, 2^8, 2^12 
	with fast mode).

	Random Sampling:  Start of subsequent measurement delayed by a random number 
	of events betwen 6 and 17 on channel A. Maximum input frequency 100 MHz.

	Inhibit Input:  Rear panel input will inhibit memory acquisition when signal 
	is above/below threshold (programmable from front panel, or HP-IB). Inhibit 
	is independent of other arming and sampling.

	Pre-trigger:  Measurements can be acquired before and after a pre-trigger 
	event. These include an edge on the external arm channel for frequency, 
	period, or time interval measurements or a detected time interval value for 
	time interval measurements.


Rear Panel
	Frequency Standard Output:  10 MHz. Short term stability not specified.

	Frequency Standard Input:  1, 2, 5, or 10 MHz input.

	Gate Outputs:  Falling TTL edge indicates measurement sample.

	Delay Outputs:  Falling TTL edge indicates completion of holdoff arming.

	Inhibit Input:  Programmable input level suppresses measurement acquisition.

	TI Detect:  Output is low for duration of out-of-range measurements.

	FastPort Outputs (option 020): Three 40-pin connectors provide unprocessed 
	data directly from count hardware. 16 bits of data and 1 strobe for each 
	connector.

[ Ordering ]

HP 5372A Frequency and Time Interval Analyzer Opt 020 FastPort Data Output (not retrofittable) Opt 030 2 GHz Channel C (front panel input) Opt +36A Productivity Training (1/2 day) Opt 040 Jitter Spectrum Analysis Opt 060 Rear-Panel Inputs (50 ohm BNC) for Channels A and B; 1 Mohm BNC for external arm; deletes front panel inputs. Opt 090 Rear Panel Inputs, Channels A, B, and C; 1 Mohm BNC for external arm; 50 ohm BNC for channels A and B; deletes front panel inputs. Opt W30 Extended Repair Service Opt W32 Calibration Service

HP 5364A 2 - 18 GHz Microwave Mixer/Detector HP 54001A 1 GHz Active Probe Pod (10:1, 10K ohm) HP 54002A 50 ohm Input Pod HP 54003A 1 M ohm Input Pod HP J06-59992A Time Interval Calibrator