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Function Generator / Arbitrary Waveform Generator


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Manufacturer: Hewlett - Packard
Model: 33120A
Cost: $ 2000 ( (1996))


Description


This is a high-performance 15 MHz synthesized function generator with built-in arbitrary waveform capability. Some of its features include 10 standard waveforms, a built-in 12 bi-bit 40 MSa/s arbitrary waveform capability and instrument state storage. The instrument includes control via an IEEE-488 (HP-IB) bus.

Note: sixteen of these instruments were purchased courtesy of a grant from Nortel.




Specifications
FREQUENCY CHARACTERISTICS
Noise (Gaussian)10 MHz bandwidth
Resolution10 µHz or 10 digits
Accuracy20 ppm in 1 year
SINEWAVE SPECTRAL PURITY
Total Harmonic Distortion0.04 %
Phase Noise< -55 dBc in a 30 KHz band
SIGNAL CHARACTERISTICS
Square Wave
Rise/Fall Time < 20 ns
Overshoot< 4 %
Asymmetry1 % + 5 ns
Duty Cycle20 % to 80 % (to 5 MHz)
40 % to 60 % (to 15 MHz)
Triangle, Ramp, Arb
Rise/Fall Time100 ns (typical)
Linearity< 0.1 % of peak output
Settling Time< 250 ns to 0.5 % of final value
Jitter< 25 ns
OUTPUT CHARACTERISTICS
Amplitude50 mVpp - 10 Vpp
Accura cy±1 % of specified output
Offset±5 Vpk ac + dc
Output Impedance50 Ohms fixed
Resolution3 digits, Amplitude and Offset
Output UnitsVpp, Vrms, dBm
Isolation42 Vpk maximum to earth
MODULATION CHARACTERISTICS
AM Modulation
Carrier -3 dB Frequency15 MHz (typical)
ModulationAny internal waveform plus Arb
Frequency10 mHz to 20 KHz (±0.05 % to 2.5 KHz, then decreases linearly to ±0.4 % at upper limit)
FM Modulation
ModulationAny internal waveform plus Arb
Frequency10 mHz to 10 KHz (±0.05 % to 600 Hz, then decreases linearly to ±0.8 % at upper limit)
Burst Modulation
Carrier Frequency5 MHz maximum
Cou nt1 to 50,000 cycles, or Infinite
Start Phase- 360° to + 360°
Internal Rate10 mHz to 50 KHz ±1 %
FSK Modulation
Frequency Range10 mHz to 15 MHz (±0.05 % to 600 Hz, then decreases linearly to ±4 % at upper limit)
FREQUENCY SWEEP
TypeLinear or Logarithmic
DirectionUp or Down
Start F/ Stop F10 mHz to 15 MHz
Time1 ms to 500 sec ±0.1 %



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Operating Instructions
  1. The front-panel display will light up while the function generator performs its power-on self-test.
  2. The HP-IB bus address is displayed
  3. To review the power-on display with all annunciators turned on, hold down "shift" as you turn on the function generator.
  4. The complete self-test can be performed by holding down "shift" as you press the Power switch (hold down the key for more than 5 seconds).
  5. The self test will begin when you release the key.
  6. If the self-test is successful, "Pass" is displayed on the front panel.
  7. If the self-test is not successful, "Fail" is displayed and the ERROR annunciator turns on.
  8. For further detailed instructions see a user's manual.



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keywords: nortel, electrical source, frequency generator, ramp wave generator, voltage source, triangle wave generator, square wave generator, signal generator, sawtooth wave generator.

Document created January 31, 1997. Original author: Phil Scolieri.
Last updated 02/07/97. Revised by David Harrison.