Output Waveform Operations - PeakTech 1006 Bedienungsanleitung

3.2

Output Waveform Operations

Upon power up or pressing the "Reset" key, the function generator defaults to a continuous sine wave operating in
the 2 K-20 KHz range.
To select an alternate wave, press the scroll keys to scroll through several wave types. For detailed operation,
please refer to section 3.1, Operational flow charts.
These function generators are actually three built-in generators in one. These three generators are: main
generator, TTL pulse generator and sweep signal generator. The main generator outputs sin, square and triangle
waves through the "Func Out" terminal. The "Func Out" terminal provides up to 20 Vp-p into an open circuit or 10
Vp-p into a 50 Ω termination. Additonally, the main generator's frequency output may be externally controlled by a
voltage input into the "VCG In" terminal.
The TTL pulse generator provides synchronous TTL pulses up to 12 MHz (PeakTech 1006) and 24 MHz
(PeakTech 1013) through the "Sync Out" terminal. The sweep signal generator creates linear or logarithmic
sawtooth waveforms which can sweep the frequency of the main generator. The sweep signals originate out of the
"Swp Out/Trig In" terminal.
Sine Wave
Sine wave may be generated from 2 Hz to the maximum operating range of the unit. The total harmonic distortion
of the sine wave is less than 1 % for frequencies below 100 kHz and less than 30 dB when operating at
frequencies above 100 kHz.
Square Wave
The peak value of a symmetrical square waveform (50 % duty cycle) is also equal to its RMS value. The rise/fall
times are less than 25 ns by 100 kHz (typical) from 10 % to 90 % of the peak-to-peak of the square wave.
Triangle Wave
The RMS value of a triangle wave is 0.557 times the peak value. The triangle linearity is greater than 99 % to 100
kHz.
Ramp Wave
The ramp wave may be generated either by: setting a continuous triangle wave and adjusting the symmetry of the
wave or using the Linear Sweep function. If the ramp wave generates from the linear sweep function, its output is
from the "Swp Out/Trig In" terminal.
Clock (TTL Pulse)
The TTL pulses are synchronous and TTL compatible. They may also have the duty cycle adjusted from 10 % to
90 %. To obtain TTL pulses set the "Mode" to "Clock" and then adjust the frequency knob to the desired frequency.
The TTL pulses are obtained from the "Sync Out" connector.
Note: The amplitude of a TTL pulse is not controlled by the "Amplitude" knob.
Trigger
The trigger mode allows external signal pulses to trigger on the positive edge of input. The external signal pulse
has a minimum width of 50 ns with a maximum repetion rate of 5 MHz. To obtain a triggered output, set the "Mode"
to "Trig", set the appropriate wave type for the F.G., and connect external pulses to the "Trig In/Swp Out" BNC
connector.
Gate or Burst
The gate function allows one to use an external pulse to trigger a continuous signal output (Figure D) from the
function generator. The external signal pulse has a minimum width of 50 ns with a maximum repetition rate of 5
MHz. To obtain a gate output:
1. Set the "Mode" to "Gate"
2. Select the appropriate wave type
3. Set the range and frequency
4. Connect an input signal to the "Trig In/Swp Out" BNC connector
{Freq. 2.740 kHz}
{CONT > SINE}
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