HP E1440A VXI 21 MHz Synthesized Function/Sweep Generator

The HP E1440A function/sweep generator is a C-size, 2-slot, message-based VXI module. It provides low-distortion sinewaves and a variety of waveforms for applications requiring high frequency stability and resolution (11 digits). A programmable relative phase output synchronized to a companion module is also available. Two or more HP E1440A modules can be used for generating multi-phase related signals.

With this module, you can use the modulation source as an arbitrary function generator via HP-IB to provide user-defined waveforms, or use the save-recall memory that includes nonvolative memory locations for simple and rapid access to frequently used test setups. Additionally, you can produce five different waveforms including: sine, square, triangle, negative, and positive ramps.

[ Features ]

Five different waveforms
Multi-interval sweep and multimarker mode
Amplitude and phase modulation
1 µHz - 60 MHz TTL clock
High-voltage output option, Isolated (floating) outputs
Two or more HP E1440A modules for generating phase-related signals

Note: Configuration software that allows you to easily select compatible interfaces, controller platforms, and VXI test system components is available on CD ROM. Order the "Test System and VXI Products Catalog and CD ROM" from the Test & Measurement Catalogs available on this web site.

[ Specifications ]

Those specifications indicated as typical describe the instruments
typical performance; all others describe the instruments warranted
performance.


Waveforms
sine, square, triangle, negative and positive Ramps, dc, TTL clock




Frequency Range
Sine: 1 µHz - 21 MHz
Square: 1 µHz - 11 MHz
Triangle: 1 µHz - 11 kHz
Ramps: 1 µHz - 11 kHz
TTL clock: 1 µHz - 60 MHz
Resolution: 11 digits
Accuracy: ±5 ppm of selected value, 20 to 30°C, at time of calibration 
with standard frequency reference
Stability: ±5 ppm/year, 20 to 30 °C
Modulation:  AM, PM


Main Signal Output (Typical)
Impedance: 50 Ohm ±1 Ohm
Maximum voltage: 42 V pk (AC+DC) (chassis ground to circuit ground, 0 - 10 kHz)
Maximum voltage: ±10 V (floating ground to signal output)
Connector: BNC


Amplitude
(50 ohm all waveforms except TTL clock, without DC offset)
Range: 1 mV to 10 Vp-p in 8 amplitude ranges, 1-3-10 sequence, 
	amplitude can also be set up in Vrms and dBm
Resolution: 4 digits (0.03% of full range)
Amplitude Accuracy: ±2% FS



Sinewave Spectral Purity
Phase noise: -55 dB for a 30 kHz band centered on a 20 MHz carrier 
	(excluding ±1 Hz about the carrier)
Spurious: -60 dBc or -85 dBm, whichever is greater
Sinewave harmonic distortion:
	Frequency Range		Harmonic Level
	0.1 Hz  - 199 kHz	-60 dBc
	200 kHz - 1.99 MHz	-40 dBc
	2 MHz - 14.9 MHz	-30 dBc
	15 MHz - 20 MHz		-25 dBc



Squarewave Characteristics (Typical)
Rise/fall time: <=20 ns (10% to 90% of p-p output voltage)
Overshoot: 5% of p-p amplitude at full output
Triangle/ramp linearity: ±0.05% of full p-p output voltage for each range (10% - 90%, 10 kHz)



DC Offset Range (50 ohm)
DC only: 0 to ±5 V
DC + AC: max. ±4.5 V
Resolution: 4 digits



Phase Offset
(related to other HP E1440A or equivalent)
Range: ±719.9°
Resolution: 0.1°
Increment accuracy: ±0.5°
Stability: ±1° of phase / °C



Sinewave Amplitude Modulation (Typical)
Modulation depth: 0 - 98%
Modulation frequency range: DC to 350 kHz (1 µHz - 21 MHz carrier frequency)
Envelope distortion: -30 dB for modulation to 80% at 1 kHz (0 Vdc Offset)
Sensitivity: ±5 V peak for maximum modulation



Phase Modulation (Typical)
Sinewave range: ±900°, ±5 V input
Sinewave linearity: ±0.5%, best fit straight line up to ±720° of modulation range
Squarewave range: ±450°
Triangle range: ±45°
Positive and negative ramps range: ±90°
Modulation frequency range: DC to 5 kHz



Frequency Sweep
Sweep sequence modes: single, continuous
Sweep function modes: 
	Multi-Interval: (up to 50 different intervals can be sequenced and repeated 
	in any order in a sequence that can contain up to 100 intervals)
	Linear or logarithmic sweep: (can be set for each interval)
Sweep time:
	Linear: 0.01 s to 105 s 
	Logarithmic: 0.1 s to 105 s 
Minimum sweep width: 
	Linear: 0 Hz 
	Logarithmic: 1 decade 
Maximum sweep width: full frequency range
Minimum sweep rate: 
	Linear: 0.2 Hz/s 
Phase continuity: sweep is phase continuous over the full frequency 
range of the main output for all sweep modes
Multimarker: 
	Linear sweep only: up to nine markers can be set in this one dedicated interval
Sweep time: 0.01 s to 105 s
Sweep width: from 0 Hz to full frequency range



Auxiliary Outputs (Typical)
SYNC-OUT TTL:
	Signal: Phase synchronous squarewave with same frequency as the main signal 
	output, or 1 µHz to 60 MHz TTL clock (main signal output switched off)
	Output impedance: 50 ohm
	Connector: BNC and TTL trigger bus

X-Drive 0 to 10 V: 
	Signal: 0 - 100 s sweeps only (proportional ramp to the entire sweep time)
	Output impedance: 650 ohm
	Output level: 0 to + 10 V (into open circuit)
	Connector: BNC

Pen lift: 
	Signal: TTL-compatible voltage levels capable of sinking current from a 
	positive source. Current 200 mA, voltage 45 V
	Connector: BNC

Marker TTL:
	Signal: High-to-low transitions at selected marker frequencies. 
	TTL- and CMOS-compatible output levels
	Pulsewidth in multimarker mode: 1 ms
	Connector: BNC and TTL trigger bus
	Fan out: 4

REF out 10 MHz
	Signal: 10 MHz squarewave for phase-locking additional instruments to the HP E1440A.
	Output impedance: 50 ohm
	Output levels (into 50 ohm): high level >2 V, low level <0.2 V
	AC-coupled output levels: 10 dBm
	Connector: BNC



Auxiliary Inputs (Typical)
External REF in 1/10 MHz: 
(For phase-locking the HP E1440A to an external frequency reference)
	Signal: from 0 dBm to 20 dBm into 50 ohm 
	(reference signal must be a subharmonic of 10 MHz from 1 MHz to 10 MHz)
	Connector: BNC or VXI-system clock

AM:
	Input impedance: 10 kOhm
	Connector: BNC
	Max. external voltage: ±15 V

PM:
	Input impedance: >40 kOhm
	Connector: BNC
	Max. external voltage: ±15 V



Option 001 High-Voltage Output
Frequency range: 1 µHz to 1 MHz

Amplitude:
	Range: 4 mV to 40 V p-p in eight ranges, 4-12-40 sequence into 500 ohm, 
	<500 pF load; ranges are four times the standard instrument ranges, without DC offset
	Accuracy: ±2% of full output for each range at 2 kHz
	Flatness: ±10% relative to programmed amplitude

Sinewave harmonic distortion:
	Frequency Range 	Harmonic Level
	10 Hz - 199 KHz		- 60 dBc
	200 kHz - 1 MHz		- 40 dBc

Output impedance: <3 ohm at DC, <10 ohm at 1 MHz 
(load impedance 500 ohm, 500 pF, max. output current 40 mA peak)
DC offset range: four times the specified range of the standard instrument


VXI Characteristics
VXI device type:        Message-based
Data transfer bus:      A16/24, D16 Master, A16/D16 Slave
Size:                   C
Slots:                  1 
Connectors:             P1/2
Shared memory:          n/a
VXI busses:             TTL Trigger Bus (T)
C-size compatibility:   Yes

Instrument Drivers
Click here for driver 
availability and downloading.Command module 
 firmware:               n/a 
Command module 
 firmware rev:           n/a
I-SCPI Win 3.1:          n/a
I-SCPI Series 700:       n/a
C-SCPI LynxOS:           n/a
C-SCPI Series 700:       n/a
HP VEE Drivers:          n/a
VXIplug&play Win 
Framework:               Yes
VXIplug&play Win95/NT 
Framework:               Yes
VXIplug&play HP-UX 
Framework:               No (not available at time of publication)

[ Ordering ]

HP E1440A VXI 21 MHz Synthesized Function/Sweep Generator Opt 001 High voltage output Opt 0B1 Add manual set Opt 0B2 Operation manual Opt 0B3 Service manual Opt 8ZE Refurbished Equipment

[ Key Literature ]