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The HP 3311A Function Generator offers wide functional capability. This compact unit has seven decades of range from 0.1 Hz to 1 MHz. Pushbutton range and function selection add convenience to versatility. Added features normally not found on function generators in this price range are 10:1 voltage control and a separate pulse output suitable for synchronization or driving TTL logic circuits. Ten V p-p into 600 ohm (20 V p-p open circuit). This output may be attenuated by >30 dB by a variable attenuator and offset by ±5 V. The dc offset allows the sine, square, and triangle functions to be positioned to the most desired level. This feature adds to the usefulness of all three functions. The dc coupled voltage control allows the use of an external source to sweep the HP 3311A > 10:1 in frequency. Specifications. Waveforms: sinusoid, square, triangle, and positive pulse. Frequency range: 0.1 Hz to 1 MHz in seven decade ranges. Dial accuracy: ± 5% of full scale. Isolation: using an external supply, outputs may be floated up to ±500 V relative to the instrument case (earth ground). External Frequency Control; VCO range: > 10:1 on any frequency range. Input requirement: with frequency dial set to 1.0, a linear ramp of 0.0 V to -10 V ±2 V linearly increases frequency > 10: 1. Input impedance: 10 kn ± 10% in parallel with <60 pF.
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