General characteristics
46 Function generator
Technical characteristics (cont'd)
Triangular signal
• Linearity error : < 1 % to 10 % at 90 % of signal amplitude, on entire
frequency range
Square signal
• Rise time < 40 ns
Pulses
• Rise time < 40 ns
• Precision VHigh, VLow : ± 0.2 V
Pulses
TTL
• Rise time < 12 ns
• Maximum acceptable load : > 5 TTL loads
• Protection against input overload voltage : ± 60 VDC, 40 VAC
SWEEP scanning
generator
EXT
External scanning
• Input via BNC terminal on front panel (VCF IN)
• Voltage/frequency characteristic
• Scanning is performed within a range of 0 V to + 10 V :
Ä switching from the minimum frequency of the range to the
maximum frequency when applying approximately 10 V
(ratio approximately 50)
• Scanning is performed within a range of 0 V to -10 V :
Ä switching from the maximum frequency of the range to the
minimum frequency when applying approximately -10 V
(ratio approximately 50)
• Input resistance : 15 kΩ ± 10 %
• Display of scanning start frequency only
Internal scanning
• Linear mode (LIN) or logarithmic mode (LOG)
• Frequencies scanned: 0.1 Hz to 5.1 MHz (7 ranges)
• The scanning start frequency
corresponds to the adjustment of the
current frequency in the "Generator" function
• Maximum frequency (F. MAX) scanned in a range: adjustable
(remaining in the limits of the range)
• Scanning period: adjustable from 10 ms to 10 s (SWEEP TIME)
• Output on "SWEEP OUT" BNC of the signal generated approximately
3.5 V for this mode
• Output impedance : 11 kΩ ± 10 %
• Alternative display of the scanning start and end frequency
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