LeCroy_LW420B 电路图.pdf

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1、 LW410A/420A AWGS FEATURES Connect a GPIB cable between the LW420B and your digital oscilloscope. Select your scope from a list of commonly available models and begin importing waveforms. Waveforms of up to 1 Mpoints in ASCII or from programs such as MathCad, MATLAB, PSPICE, IQSIM, TOPSIM and others

2、 can be imported from the floppy drive. You can also use a shareware program from LeCroy to convert your files to DIF format and transfer directly over the GPIB to the LW420B. When importing or transferring files, you have the choice of over sampling or importing the points exactly as they are. Once

3、 in the WaveStation, all the modification, editing and math tools can be used to put the waveform in the shape you need for your task. FASTSWITCHGROUP SEQUENCEINCREASESTEST FLEXIBILITY AND MINIMIZESTESTTIME LeCroys Fast Switch Group Sequence capability enables you to switch between many different pr

4、e-loaded waveforms in less then 11 ms. Waveforms will continually play until a sequence advance is received from the front panel or a remote command. Choose to auto advance from sequence to sequence or choose to jump to the nth sequence in the group. Generate a continuous output of a sequence select

5、ed from the group, or use the external trigger input to initiate a burst or single shot of the selected sequence. DIGITALOUTPUTOPTION The Digital Output option provides 8-bit TTL and ECL digital outputs corre- sponding to the current value of the Channel1 analog output. The latched digital data is h

6、eld for the duration of the sample clock. The digital data, including the sample clock and its complement, are available via rear- panel connectors. The special digital editing mode is useful for creating and editing byte wide data patterns or selected bits and the standard “cut and paste” tools ava

7、ilable for analog wave- forms can also be used. 400 MS/SMAXIMUM CLOCKRATE, 1 MPOINT WAVEFORMS, AND SYNTHESIZERTIMEBASE WITHTWOPHASE- SYNCHRONIZEDCHANNELS A maximum sample rate of 400 MS/s, up to 1 Mbyte of waveform memory, a precise timebase, and single point reso- lution gives you the power you nee

8、d to generate the most demanding, com- plex stimuli. The timebase combining 3 ppm accuracy and 1 ppm/year stabil- ity assures that the waveforms you test your systems with next year will be the same as the ones you use today. Low single sideband phase noise and a 1 Hz frequency resolution over a con

9、- tinuous 6 kHz400 MHz range provide the flexibility and capability needed to generate even the most complex and demanding waveforms. FULLYINTEGRATEDAWG INCLUDESHIGH PERFORMANCEPROCESSOR, INTERNALHARDDISK DRIVE, ANDBUILT-IN9 INCHCRT WaveStation provides all the power needed to work with long and com

10、- plex waveforms. A built-in hard disk drive, a 486 processor, up to 24 Mbytes of RAM, and a large internal mono- chrome VGA display make the LW420A a fast, responsive instrument ideally suited for the interactive graphical operations required in a high-perfor- mance AWG. SIGNALSOURCES RadioFans.CN

11、收音机爱 好者资料库 LW410A/420A AWGS GENERATORMODE Standard Function Waveforms Sine, 1 Hz100 MHz Square, 1 Hz50 MHz Triangle, 1 Hz25 MHz Ramp, 1 Hz25 MHz Pulse, (period) 20 ns - max. memory DC Frequency Sweep, Linear / Log Multitone, 110 tones, 1 Hz100 MHz Special Waveform Generation Mode IMD - Intermodulati

12、on distortion test waveform: Select center frequency, 1-15 tone pairs, tone spacing, resolu- tion, offset from center frequency. ARBITRARYFUNCTIONS Waveform Creation Interactive Graphical editor on internal 9” diagonal CRT8.5” viewable. Standard Functions Sine, Square, Triangle, Ramp, Pulse, DC Equa

13、tion Editor Waveform (array) Math Waveform Import From Digital Oscilloscope Floppy Disk Feature Time Resolution: 100 ps 400 MHz Available memory: 256 k/ch standard 1 Mpoint optional SEGMENTEDWAVEFORMS Minimum segment length: 64 points Maximum segment length: Up to available memory (1 Mpoint with mem

14、ory option installed). Segment length resolution: 1 point Number of links: 512 for 256k memory 2048 for 1M memory WAVEFORMOUTPUT CHARACTERISTICS Output channels: LW410A 1 Channel LW420A 2 Channel Output Impedance: 50 , 5% DC Accuracy: 2% 40 mV 500 mV 2% 15 mV 500 mV Vertical resolution: 8 bits Minim

15、um output voltage: 10 mV p-p into 50 Maximum output voltage: 10 V p-p into 50 Offset voltage range: 5 V into 50 . The output voltage (signal + offset) must be in the range 5 V into 50. Offset voltage resolution: 0.05% of full scale Output bandwidth: 100 MHz (-3dB) (widest bandwidth) Total harmonic d

16、istortion: For sinusoidal output of 5 V p-p; -45 dBc (-50 dBc typical) for frequencies: 1MHz -35dbc ( -45 dBc typical) for frequencies: 1 MHz20 MHz -25 dBc (20MHz50 MHz, predominantly 2nd harmonic Spurious 100 MHz , 10 MHz, 1 MHz , 100 kHz , 10 kHz SAMPLECLOCK CHARACTERISTICS (with internal 10 MHz r

17、eference) Sample Clock: 6 kHz400 MHz Resolution: 1 Hz Accuracy: 3 ppm over operating tem- perature range. Stability: aging 1 ppm/year SSB Phase Noise: -90 dBc/Hz 10 KHz offset for a 10 MHz sine wave at the output TRIGGERING CHARACTERISTICS Trigger slope: Positive or Negative Trigger input impedance:

18、 50 5% Threshold range: 2.5V Threshold resolution: 20 mV Threshold accuracy: 100 mV Threshold sensitivity: 50 mV p-p Minimum pulse width: 5 ns Protection: 5 V TRIGGERMODES Continuous: Runs continuously Single: Outputs 1 repetition of the waveform for each trigger received. Triggers received while th

19、e waveform is still running are ignored. Burst: Outputs the selected waveform a programmable number of times in response to a trigger. The maximum number of repetitions for a burst is 4,095. Triggers received while the burst is running are ignored. Gated: The waveform starts on the RadioFans.CN 收音机爱

20、 好者资料库 leading edge of the gate signal and stops on completion of the waveform cycle occurring at the trailing edge of the gate signal. TRIGGERDELAY Minimum delay time: 35 ns 3.5 ns +5 sample clocks (fixed) Maximum delay time: 10 s at highest clock rate to 100k s at lowest clock rate. Delay resoluti

21、on: 1 sample clock. Delay is in units of seconds. When operating from the front panel, the res- olution is set in increments of the sam- ple clock period. Delay accuracy: Same as sample clock + minimum delay time. Delay jitter: 1 sample clock. TRIGGERSOURCES Manual: Front panel push-button. External

22、: Front panel BNC connector. GPIB: A trigger command may be issued over the GPIB bus. MASSSTORAGE 3.5” 1.44 MB DOS format floppy drive 400 MB internal hard disk drive. AUXILIARYINPUTS External 10 MHz reference: Rear panel BNC connector for input of an external reference clock. 400 mV p-p to 5 V p-p

23、into 50 . AUXILIARYOUTPUTS 10 MHz reference: 3 ppm accuracy Amplitude (high):1.6 V into 50 . Amplitude (low): 0.2 V into 50 . Markers: Select Edge or Clock Edge: 1 bit memoryset up to 128 edge transitionsECL or TTL levels Clock: Frequency up to one half the sample clock rate. Protection: Outputs pro

24、tected to 5 V. Channel 1 Digital Output Optional: 8 bits and clock with TTL and ECL logic levels available simultaneously. Noise In: From rear panel BNC connectors. HARDCOPYOUTPUTS Supported Printers include: Epson MX/FX Epson LQ HP LaserJet II HP ThinkJet PROGRAMMABILITY GPIB IEEE 488.2 compatible.

25、 Compliant with SCPI programming lan- guage. Capable of initiating and con- trolling waveform transfer from digital oscilloscopes by simply connecting a GPIB cable (no computer required). MECHANICAL Dimensions: 14.92”W x 7.67”H x 19.58”D (37.9 cm x 19.5 cm x 49.7 cm) Weight: 27.6 lbs (12.5 kilograms

26、) ENVIRONMENTAL Temperature: 5 to 35 full specifica- tions; 0 to 40C operating; -20 to 70C non-operating. Humidity: 10% to 90% relative, non- condensing POWER: Autosensing 90-132/180-250 V AC 47-63 Hz 4 amps 115 V AC (20 amps cold start surge) 2 amps 230 V AC (40 amps cold start surge) Warranty: One

27、 Year SIGNALSOURCES LW400 SERIES- ORDERINGINFORMATION WAVEFORMGENERATORS:PRODUCTCODE Single Channel 400 MS/s Arbitrary Waveform Generator LW410B 1 Megasample memory - 1 channel LW410-ME2 Dual Channel 400 MS/s Arbitrary Waveform Generator LW420B 1 Megasample memory - 2 channels LW420-ME2 Rackmount Ad

28、apter for LW410/420 LS-RM Transit Case for LW410/420 LS-TRANS Soft Carrying Case for LW410/420 LS-SOFT Operators Manual for LW410/420 - Included with LW410/420 LW400-OM Remote Programming Manual for LW410/420 - Incl. with LW410/420 LW400-RPG Service Manual for LW410/420 LW400-SM Digital Output - Cha

29、nnel 1 Only LW400-09A 5 NIST Calibrations on any LW400 Series AWG LW4XX-C5 NIST Calibration on LW400 Series LW4XX-CC MIL-STD Calibration on LW400 Series LW400-CCMIL 5 Year Warranty and NIST Calibration on LW400 Series LW4XX-T5 5 Year Warranty on LW400 Series AWG LW4XX-W5 5 Year Warranty and MIL-STD 45662A Calibration on LW400 Series LW4XX-R5/MIL