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281,282,284波形发生器

商品型号: 281,282,284波形发生器
出厂时间: 2010年04月03日
商品单位:
生产商家: fluke
服务期限: 1年
库存数量: 10
销售类型: 正常销售
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商品介绍

281,282,284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

280 280 系列波形发生器的详细资料:

·                                 Choice of 1, 2 nd 4 independent or linked channels

·                                 40 MS/s max. sampling speed

·                                 16 MHz function generator

·                                 10 MHz pulse generator

·                                 Pulse train pattern generator

·                                 Arbitrary waveforms of up to 65 k points

·                                 Powerful modulation capabilities

·                                 Built-in trigger generators

·                                 Waveform Manager Plus for Windows® software

·                                 Multiple standard waveforms recalled from internal memory

·                                 RS-232 nd GPIB interfaces

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 ount 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 nd 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 nd Sinx/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 nd 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 nd arbitrary

Max. Carrier Frequency

 

40 Msamples/s for ARB nd 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 nd type

Gated

Waveform will run while the Gate signal is true nd stop while false

 

Carrier waveforms

 

All standard nd arbitrary

Max. carrier frequency

 

40 Msamples/s for ARB nd 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 nd type

Sweep

Frequency sweep capability is provided for both standard nd arbitrary waveforms. Arbitrary waveforms are expanded or condensed to exactly 4096 points nd DDS techniques are used to perform the sweep.

 

Carrier waveforms

 

All standard nd arbitrary except pulse, pulse train nd 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 nd 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 nd 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 nd Waveform can be set independently for each channel.

Tone Switching

Capability provided for both standard nd arbitrary waveforms. Arbitrary waveforms are expanded or condensed to exactly 4096 points nd DDS techniques are used to allow instantaneous frequency switching.

 

Carrier waveforms

 

All except pulse, pulse train nd 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 nd 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 nd 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 nd 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 nd 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 nd 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 points on the waveform may have associated marker bits 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 nd 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 nd 4 V from 50 ?

Set to phase lock

 

Used together with SYNC OUT on a aster nd 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 nd 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 nd 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 nd waveform sequences may be phase locked but certain constraints apply to waveform lengths nd clock frequency ratios.

 

With one channel assigned as the Master nd other channels as Slaves a frequency change on the aster 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 nd 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, nd 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 nd versatile interchannel trigger schemes may be set up. Each channel can have its trigger out nd 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 nd 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 nd IEEE488.2

Software included

 

Windows-based software for waveform creation, editing nd management is supplied. Instrument drivers LabView nd 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 nd 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

型号名称

描述

 281

 1 Channel 40 MS/s Arbitrary Waveform Generator and Waveform Manager Plus Software

 282

 2 Channel, 40 MS/s Arbitrary Waveform Generator and Waveform Manager Plus Software

 284

 4 Channel, 40 MS/s Arbitrary Waveform Generator and Waveform Manager Plus Software

 

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