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280 系列波形发生器 Fulke 福禄克 280 系列波形发生器

产品信息
类型波形信号发生器品PaiFulke 福禄克
型号280 系列波形发生器
280 系列波形发生器
280 系列波形发生器
A selection of universal waveform generators offering superior performance and excellent value

These universal waveform generators combine many generators in one instrument. Their extensive signal simulation capabilities include arbitrary waveforms, function generator, pulse/pulse train generator, sweep generator, trigger generator, tone generator, and amplitude modulation source.

Choice of 1, 2 and 4 independent or linked channels40 MS/s max. sampling speed16 MHz function generator10 MHz pulse generatorPulse train pattern generatorArbitrary waveforms of up to 65 k pointsPowerful modulation capabilitiesBuilt-in trigger generatorsWaveform Manager Plus for Windows® softwareMultiple standard waveforms recalled from internal memoryRS-232 and GPIB interfaces

280 系列波形发生器
Specifications apply at 18-28 ºC after 30 minutes warm-up, at maximum output into 50 ?.

Arbitrary Waveforms
Waveforms
Maximum waveform size is 65,536 points; minimum waveform size is 4 points. Up to 100 user defined waveforms may be stored in the 256 K point nonvolatile RAM. Waveforms can be defined by front panel editing controls or by downloading of waveform data via RS-232 or GPIB.
Waveform memory
64 k points per channel
Vertical resolution
12 bits
Sample clock
100 mHz to 40 MHz
Resolution
4 digits
Accuracy
± 1 digit of setting
Sequencing
Up to 16 waveforms may be linked. Each waveform can have a loop count of up to 32,768. A sequence of waveforms can be looped up to 1,048,575 times or run continuously.
Output filter
Selectable between 16 MHz Elliptic, 10 MHz Elliptic, 10 MHz Bessel or none

Standard Waveforms

All Waveforms
Accuracy
10 ppm for 1 year
Temp. stability
Typically < 1 ppm/ºC.
Output level
2.5 mV to 10 Vpp into 50 ?

Sine, Cosine, Haversine, Havercosine
Range
0.1 mHz to 16 MHz
Resolution
0.1 mHz or 7 digits
Harmonic distortion
< 0.1 % THD to 100 kHz;
< –65 dBc to 20 kHz,
< –50 dBc to 300 kHz,
< –35 dBc to 10 MHz
< –30 dBc to 16 MHz
Nonharmonic spurii
< –65 dBc to 1 MHz,
< –65 dBc + 6 dB/octave 1 MHz to 16 MHz

Square
Range
1 mHz to 16 MHz
Resolution
1 mHz (4 digits)
Accuracy
± 1 digit of setting
Rise/fall times
< 25 ns

Pulse and Pulse Train
Rise/fall times
< 25 ns
Period range
100 ns to 100 s
Period resolution
4 digit
Accuracy
± 1 digit of setting
Delay range
–99.99 s to + 99.99 s
Delay resolution
0.002 % of period or 25 ns, whichever is greater
Width range
25 ns to 99.99 s
Width resolution
0.002 % of period or 25 ns, whichever is greater

Triangle
Range
0.1 mHz to 100 kHz
Resolution
0.1 mHz or 7 digits
Linearity error
< 0.1 % to 30 kHz

Ramps and Sin(x)/x
Range
0.1 mHz to 100 kHz
Resolution
0.1 mHz (7 digits)
Linearity error
0.1 % to 30 kHz
Note: The pulse width and absolute value of the delay may not exceed the pulse period at any time. Repetition rate is set by the pulse train period.

Operating Modes

Operating Modes
Continuous
Waveform runs continuously
Triggered Burst
Each active edge of the trigger signal will produce one burst of the waveform
Carrier waveforms
All standard and arbitrary
Max. Carrier Frequency
40 Msamples/s for ARB and Sequence. 1 MHz or the maximum for the selected waveform.
Number of cycles
1 to 1,048,575
Trigger repetition
0.005 Hz to 100 kHz internal dc to 1 MHz external
Trigger signal source
Internal from keyboard, previous channel, next channel or trigger generator. External from TRIG IN or remote interface.
Trigger start/stop phase
± 360 ° settable with 0.1 ° resolution, subject to waveform frequency and type
Gated
Waveform will run while the Gate signal is true and stop while false
Carrier waveforms
All standard and arbitrary
Max. carrier frequency
40 Msamples/s for ARB and Sequence. 1 MHz or the maximum for the selected waveform.
Number of cycles
1 to 1,048,575
Trigger repetition
0.005 Hz to 100 kHz internal dc to 1 MHz external
Gate signal source
Internal from keyboard, previous channel, next channel or trigger generator. External from TRIG IN or remote interface.
Gate start/stop phase
± 360 ° settable with 0.1 ° resolution, subject to waveform frequency and type
Sweep
Frequency sweep capability is provided for both standard and arbitrary waveforms. Arbitrary waveforms are expanded or condensed to exactly 4096 points and DDS techniques are used to perform the sweep.
Carrier waveforms
All standard and arbitrary except pulse, pulse train and sequence
Sweep mode
Linear or logarithmic, triggered or continuous
Sweep direction
Up, down, up/down or down/up
Sweep range
From 1 mHz to 16 MHz in one range. Phase continuous. Independent setting of the start and stop frequency.
Sweep time
30 ms to 999 s
Marker
Variable during sweep
Sweep trigger source
The sweep may be free run or triggered from the following sources: Manually from keyboard. Externally from TRIG IN input or remote interface.
Sweep hold
Sweep can be held and restarted by the HOLD key
Multi channel sweep
Any number of channels may be swept simultaneously but the sweep parameters will be the same for all channels. Amplitude, Offset and Waveform can be set independently for each channel.
Tone Switching
Capability provided for both standard and arbitrary waveforms. Arbitrary waveforms are expanded or condensed to exactly 4096 points and DDS techniques are used to allow instantaneous frequency switching.
Carrier waveforms
All except pulse, pulse train and sequence
Frequency list
Up to 16 frequencies from 1 mHz to 10 MHz
Trigger repetition rate
0.005 Hz to 100 kHz internal. DC to 1 MHz external. Usable repetition rate and waveform frequency depend on the tone switching mode.
Source
Internal from keyboard, previous channel, next channel or trigger generator. External from TRIG IN or remote interface.
Tone switching modes
Gated
The tone is output while the trigger signal is true and stopped, at the end of the current waveform cycle, while the trigger signal is false. The next tone is output when the trigger signal is true again.
Triggered
The tone is output when the trigger signal goes true and the next tone is output, at the end of the current waveform cycle, when the trigger signal goes true again.
FSK
The tone is output when the trigger signal goes true and the next tone is output, immediately, when the trigger signal goes true again. Using 2 channels with their outputs summed together it is possible to generate DTMF test signals.
Trigger Generator
Internal source 0.005 Hz to 100 kHz square wave adjustable in 10 us steps. 3-digit resolution. Available for external use from any SYNCOUT socket.

Outputs

Main Outputs – One for each channel
Output impedance
50 ?
Amplitude
5 mV to 20 Vpp open circuit (2.5 mV to 10 Vpp into 50 ?). Amplitude can be specified open circuit (hi Z) or into an assumed load of 50 ? or 600 ? Vpkpk, Vrms or dBm.
Amplitude accuracy
2 % ± 1 mV at 1 kHz into 50 ?
Amplitude flatness
± 0.2 dB to 200 kHz; ± 1 dB to 10 MHz; ± 2.5 dB to 16 MHz
DC offset range
± 10 V from 50 ?. Offset plus signal peak limited to ± 10 V
DC offset accuracy
Typically 3 % ± 10 mV, unattenuated
Resolution
3 digits or 1 mV for both amplitude and dc offset
Sync Out – One for each channel
Multifunction output user definable or automatically selected to be any of the following:
Waveform sync (all waveforms)
A square wave with 50 % duty cycle at the main waveform frequency, or a pulse coincident with the first few points of an arbitrary waveform
Position markers
Any point(s) on the waveform may have associated marker bit(s) set high or low
Burst done
Produces a pulse coincident with the last cycle of a burst.
Sequence sync
Produces a pulse coincident with the end of a waveform sequence.
Trigger
Selects the current trigger signal. Useful for synchronizing burst or gated signals.
Sweep sync
Outputs a pulse at the start of sweep to synchronize an oscilloscope or recorder.
Phase lock out
Used to phase lock two generators. Produces a positive edge at the 0 ° phase point.
Output signal level
TTL/CMOS logic levels from typically 50 ?.
Cursor/marker out
Adjustable output pulse for use as a marker in sweep mode or as a cursor in arbitrary waveform editing mode. Can be used to modulate the Z axis of an oscilloscope or be displayed on a second ‘scope channel.
Output Signal Level: Adjustable from nominally 2 V to 14 V, normal or inverted; adjustable width as a cursor.
Output impedance
600 ? typical

Inputs

Trig In
Frequency range
DC to 1 MHz
Signal range
Threshold nominally TTL level; maximum input ± 10 V
Min. pulse width
50 ns, for Trigger/Gate; 50 us for Sweep mode
Polarity
Selectable as high/rising edge or low/falling edge
Input impedance
10 k?

Modulation In
Frequency range
DC to 100 kHz
VCA signal range
Approximately 1 V pkpk for 100 % level change at maximum output
SCM signal range
Approximately ± 1 V pk for maximum output
Input impedance
Typically 1 k?

Sum In
Frequency range
DC to 8 MHz
Signal range
Approximately 2 V pk-pk input for 20 V pk-pk output
Input impedance
Typically 1 k?

Hold
Hold
Holds an arbitrary waveform at its current position. A TTL low level or switch closure causes the waveform to stop at the current position and wait until a TTL high level or switch opening which allows the waveform to continue. The front panel MAN HOLD key or remote command may also be used to control the Hold function. While held the front panel MAN TRIG key or remote command may be used to return the waveform to the start. The Hold input may be enabled independently for each channel.
Input impedance
10 k?

Ref Clock In/Out
Set to input
Input for an external 10 MHz reference clock. TTL/CMOS threshold level.
Set to output
Buffered version of the internal 10 MHz clock. Output levels nominally 1 V and 4 V from 50 ?
Set to phase lock
Used together with SYNC OUT on a master and TRIG IN on a slave to synchronise (phase lock) two separate generators.

Inter-Channel Operation

Inter-Channel Operation
Inter-Channel Modulation
The waveform from any channel may be used to Amplitude Modulate (AM) or Suppressed Carrier Modulate (SCM) the next channel. Alternatively any number of channels may be Modulated (AM or SCM) with the signal at the MODULATION input socket.
Carrier frequency
Entire range for selected waveform
Carrier waveforms
All standard and arbitrary waveforms
Modulation types: AM
Double sideband with carrier. SCM: Double sideband suppressed carrier
Modulation source
Internal from the previous channel. External from Modulation input socket. The external modulation signal may be applied to any number of channels simultaneously.
Frequency range
DC to > 100 kHz
Internal AM depth
0 % to 105 %.
Internal AM resolution
1 %
Carrier suppression (SCM)
> 40 dB
External modulation signal range
VCA: Approximately 1 V pk-pk for 100 % level change at maximum output
SCM
Approximately ± 1 V pk for max. output
Inter-Channel Analogue Summing
Waveform Summing sums the waveform from any channel into the next channel. Alternatively any number of channels may be summed with the signal at the SUM input socket.
Carrier frequency
Entire range for selected waveform
Carrier waveforms
All standard and arbitrary waveforms
Sum source
Internal from the previous channel. External from SUM IN socket.
Frequency range
DC to > 8 MHz
Ext. signal range
Approx. 5 V pk-pk input for 20 V pk-pk output
Inter-Channel Phase Locking
Two or more channels may be phase locked together. Each locked channel may be assigned a phase angle relative to the other locked channels. Arbitrary waveforms and waveform sequences may be phase locked but certain constraints apply to waveform lengths and clock frequency ratios.
With one channel assigned as the Master and other channels as Slaves a frequency change on the master will be repeated on each slave thus allowing multiphase waveforms at the same frequency to be easily generated. DDS waveforms are those with 7 digits of frequency setting resolution, while Non-DDS waveforms have 4 digits.
Phase resolution Non-DDS waveforms
DDS waveforms: 0.1 degree or 360 degrees/number of points whichever is the greater
Phase error
< ± 10 ns all waveforms
The signals from the REF IN/OUT socket and the SYNC OUT socket can be used to phase lock two instruments where more than 4 channels are required.
Inter-Channel Triggering
Any channel can be triggered by the previous or next channel. The previous/next connections can be used to ‘daisy chain’ a trigger signal from a ‘start’ channel, through a number of channels in the ‘chain’ to an ‘end’ channel. Each channel receives the trigger out signal from the previous (or next) channel, and drives its selected trigger out to the next (or previous) channel.
The ‘end’ channel trigger out can be set up to drive the ‘start’ channel, closing the loop. In this way, complex and versatile interchannel trigger schemes may be set up. Each channel can have its trigger out and its output waveform set up independently. Trigger out may be selected from Waveform End, Position Markers, Sequence Sync or Burst Done.
Using the scheme above it is possible to create a sequence of up to 64 waveform segments, each channel producing up to 16 segments and all channels being summed to produce the complete waveform at the output of channel 4.

Interfaces
RS-232
Variable Baud rate, 9600 Baud maximum
IEEE-488
Conforms with IEEE488.1 and IEEE488.2
Software included
Windows™-based software for waveform creation, editing and management is supplied. Instrument drivers LabView and LabWindows CVI drivers are either supplied with the instrument or are available via your local Fluke office

General Specifications
Display
20 character x 4 row alphanumeric LCD
Data entry
Keyboard selection of mode, waveform etc.; value entry direct by numeric keys or by rotary control
Stored settings
Up to 9 complete instrument setups may be stored and recalled from battery-backed memory.
Up to 100 arbitrary waveforms can also be stored independent of the instrument settings.
Size
130 mm (3 U) height; 335 mm long; width 350 mm (282/284), 212 mm (281)
Weight
7.2 kg. (16 lb) (282/284); 4.1 kg (9 lb) (281)
Power
230 V, 115 V or 100 V nominal 50/60 Hz, adjustable internally; operating range ± 14 % of nominal;100 VA max. for 4 channels, 75 VA max. for 2 channel, 40 VA max. for 1 channel. Installation Category II.
Operating range
+5 °C to 40 °C, 20-80 % RH
Storage range
–20 °C to + 60 °C
Environmental
Indoor use at altitudes to 2000 m, Pollution Degree 2
Options
19-in rack mounting kit
Safety
Complies with EN61010-1
EMC
Complies with EN61326

280 系列波形发生器
280 系列波形发生器
A selection of universal waveform generators offering superior performance and excellent value

These universal waveform generators combine many generators in one instrument. Their extensive signal simulation capabilities include arbitrary waveforms, function generator, pulse/pulse train generator, sweep generator, trigger generator, tone generator, and amplitude modulation source.

Choice of 1, 2 and 4 independent or linked channels40 MS/s max. sampling speed16 MHz function generator10 MHz pulse generatorPulse train pattern generatorArbitrary waveforms of up to 65 k pointsPowerful modulation capabilitiesBuilt-in trigger generatorsWaveform Manager Plus for Windows® softwareMultiple standard waveforms recalled from internal memoryRS-232 and GPIB interfaces

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