产品描述:
B821 – Generator,B821发电机
• Sweep Function Generator and Frequency Counter
• Sine, Square, Triangle, Ramp, Pulse, Skewed Sine and TTL Square Waveforms
• 0.2Hz to 20MHz Frequency Output (Sine wave)
• Built-in 8 digit 3.0GHz Frequency Counter
• Internal and External linear Sweep control
• Variable Symmetry for generating Sawtooth (Ramp), Skewed Sine and Pulse Waveforms
• Variable DC Offset control
• Variable Output level control and 20 dB attenuator
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Frequency Range |
Sine wave: 0.2Hz to 20MHz Square & Triangle wave: 0.2Hz to 10MHz Range selection in 8 ranges (1,10,100,1K,10K,100K,1M,10M) |
Output Level |
20 ±1 Vp-p in open circuit 10 ±0.5 Vp-p into 50 Load |
Waveforms |
Sine, Square, Triangle, Ramp, Pulse, Sawtooth, TTL Leveled Square |
Attenuator |
20dB fixed and continuously variable (20dB) |
Impedance |
50 ±0.5% |
Frequency Accuracy |
±5% of full scale |
|
|
Sine Wave |
Flatness: ±3dB to 20MHz Distortion: Less than 1.5 % at 0.2Hz to 100KHz Duty error: Less than 10% in 50:50 |
Square Wave |
Rise and Fall Time: < 25ns at 10MHz |
Triangle Wave |
Linearity: More than 99% at 0.2Hz to 100KHz |
TTL Output |
Rise and Fall Time: < 25ns at 10MHz TTL Level: H 2.4V, L 0.4V |
Symmetry Variation |
Sine & Square: 80:20 to 20:80 at 0.2Hz to 2MHz Triangle: 80:20 to 20:80 at 0.2Hz to 1MHz |
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Sweep Function Characteristics |
|
Mode |
Linear |
Width |
Variable from 1:1 to 10:1 |
Rate |
0.5Hz to 50Hz (20ms to 2s) |
External VCF Input |
Input Voltage: 0 to 10V Input Impedance: Approx. 10K |
|
Frequency Counter Characteristics |
|
Display |
8 digits Green LED, Overflow, Gate time, MHz, KHz, Hz |
Frequency Range |
Input A: 0.1Hz to 100MHz Input C: 80MHz to 3.0GHz |
Accuracy |
±Timebase Error ±1 count |
Lowpass Filter |
-3 dB, 100KHz |
Timebase |
10MHz TCO, 1 ppm |
Input Sensitivity |
Input A (30mVrms): 0.1Hz to 80MHz Input A (70mVrms): 80MHz to 100MHz Input C (20mVrms): 80MHz to 2.0GHz Input C (70mVrms): 2.0GHz to 3.0GHz with RG58 cable Input C (40mVrms): 2.0GHz to 3.0GHz with RG400 cable |
Max. Input Voltage |
Input A: 35Vp-p Input C: 3Vrms |
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|
Power Requirements |
115/230VAC ±10%, 48 to 66Hz |
Operating Temperature |
0 to 40°C (Accuracy specified at 23°C ±5°C) 32 to 104°F (Accuracy specified at 73°F ±9°F) |
Size |
3.5" (H) x 9.5" (W) x 11.0" (D) |
Weight |
6.6 lbs |
Supplied Accessories |
Manual, Line cord, BNC cable |
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