Tektronix CFG280 0.1Hz-11MHz 函数信号发生器

详细资料：

CFG280


    * 0.1 Hz to 11 MHz （Calibrated）
    * 0.01 Hz to 11 MHz （Uncalibrated）
    * 1 Hz to 100 MHz Counter
    * Square, Triangle and Sine Waves; TTL Output
    * 20 dB Attenuator
    * External Gate Input
    * VCF （FM） Input
    * AM 0 to 100% Input for External Sine Wave
    * Internal or External Frequency Sweep
    * One Year Warranty


CFG280 11 MHz Function Generator with Counter

The CFG280 combines an 11 MHz function generator with a 1 Hz to 100 MHz frequency counter. The on-board counter allows the operator to set the frequency output of the function generator precisely. This versatile instrument conserves both bench space and budget.


























































































































  
   

CFG253
   

CFG280

Waveform outputs
   

Square wave, sine wave, triangle wave, TTL pulse, sweep functions for all outputs
   

Square wave, sine wave, triangle wave, TTL pulse, sweep functions for all outputs

Ranges
   

1.0 Hz to 3.0 MHz in 7 ranges
   

0.1 Hz （calibrated） to 11 MHz in 8 ranges

Frequency multiplier
   

Variable from 0.3 to 3.0 times the selected frequency range
   

Variable from 0.1 to 1 （uncalibrated） 1 to 11 （calibrated）

Dial accuracy
   

±5% of full scale
   

±5% of full scale from 0.1 Hz to 10 MHz

Sine wave distortion
   

<1% （10 Hz to 100 kHz）
   

<1% （10 Hz to 100 kHz）, -30 dB at all other frequencies

Triangle wave linearity
   

20 Hz to 200 kHz: ≥99%; 200 kHz to 3 MHz: ≥97%
   

0.1 Hz to 110 kHz: ≥99%; 110 kHz to 1 MHz: ≥97%; 1 MHz to 11 MHz: ≥95%

Square wave response
   

≤100 ns rise/fall time, maximum output into 50 Ω load
   

≤25 ns rise/fall time, maximum output into 50 Ω load

Main output amplitude
   

0 to 20 Vp-p
   

0 to 20 Vp-p

Attenuator
   

20 dB
   

20 dB

SYNC/TTL output
   

TTL output level, rise <25 ns （20 TTL load） ≥3 V pk
   

<25 ns rise/fall time, maximum output into 50 Ω load

Main output impedance
   

50 Ω ±10%
   

50 Ω ±10%

DC offset （continuously variable）
   

±10 V minimum open circuit; ±5 V minimum into 50 Ω load
   

±10 V minimum open circuit; ±5 V minimum into 50 Ω load

Symmetry/duty cycle
   

5 to 1 minimum symmetry change
   

95/5 fixed （pulse and ramp）

Internal variable sweep rate
   

0.5 Hz to 50 Hz
   

0.5 Hz to 50 Hz

External voltage-controlled variable sweep range （10 kΩ Input）
   

100:1 minimum for 0 to +10 VDC input with frequency control set at maximum
   

100:1 minimum for 0 to ±10 VDC input with frequency control set at 0.1 or 11

VCF （FM） Input
   

  
   

±10 V input shifts frequency ≥100:1 up or down with dial set at 0.1 or 11 respectively

AM
   

  
   

0 to 100%, DBSC, external sine wave only

Warranty
   

One year
   

One year

Safety
   

EN61010-1, UL1244, CSA231
   

EN61010-1, UL1244, CSA231

EMC
   

Meets 89/336/EEC
   

Meets 89/336/EEC

CFG280 Counter Specifications

Frequency range （AC coupled）
   

  
   

1 Hz to 100 MHz

Sensitivity
   

  
   

30 mVRMS from 1 Hz to 50 MHz; 50 mVRMS from 50 MHz to 100 MHz

Period range/resolution
   

  
   

1 ms to 60 s/1 ms

Crystal frequency
   

  
   

10 MHz

Time base stability
   

  
   

±0.001% （±10 ppm） from 0 ° to 40 °C

Frequency accuracy
   

  
   

±（time base error + 1 count）

Period accuracy
   

  
   

±（time base error + 1 count + trigger error）