This function generator provides a substantial array of output capabilities. It's extremely reliable for heavy   day-to-day usage in electronic trouble shooting, production manufacturing test or as a bread-boarding signal source.

The FG3C-UA sweep/function generator provides sine square, triangle waves and TTL or CMOS pulse outputs from 0.3Hz to 3MHz. A built-in frequency counter with 6 digit display accurately shows frequency settings. Or use a stand alone frequency counter for external signals from 5Hz to 150MHz. Control the linear or logarithmic sweep of any of the selected signal outputs internally or with user provided external modulating signal. Produce TTL or CMOS pulses with the duty cycle function. Switchable 20dB attenuation allows for low signal output.
 

Features

• Square, Triangle, Sine Waves, TTL and CMOS pulse outputs.
• 0.3Hz to 3MHz range.
• Linear or logarithmic.
• Amplitude or frequency modulation.
• Built-in 150MHz frequency counter with 6-digit LED display.
• Voltage controlled frequency (VCF) input.
• Variable duty-cycle control.
• Two switchable 20dB attenuators.
• Variable DC offset control.
• Includes line cords and fuses for either 117V or 220V 50/60Hz operation.

Function

Range

Accuracy

Frequency

0.3Hz to 3MHz (7 ranges)

±5% + 1Hz (@ 3.0 position)

Amplitude

>10Vpp (into 50Ω load)

Impedance

50Ω ±10%

Attenuation (Knob)

-20dB

±1dB

Attenuation (button)

-20dB

±1dB

DC Offset

<-5V to > +5V (into 50Ω load)

Duty-cycle Control

80%:20%:80% to 1MHz; continuously variable

Distortion

1%, 0.3Hz to 200kHz

THD <35dB below fundamental in all ranges

(Specification applied from MAX. to 1/10 level)

Flatness

<0.3dB, 0.3Hz to 300kHz;<0.5dB, 300kHz to 3MHz

Linear

≥98%, 0.3Hz to 100kHz; ≥95%, 100kHz to 3MHz

Symmetry

±2%, 0.3Hz to 100kHz

Rise or Fall Time

≤ 100ns at maximum output (into 50Ω load)

Level

4Vpp

±1Vpp to 14.5Vpp ±0.5Vpp adjustable

Rise and Fall Time

≤ 120ns

Level

≥3Vpp

Fan Out

20 TTL load

Rise and Fall Time

≤ 25ns

Input Voltage

-10V to +10V

±1V (100:1)

Input Impedance

10kΩ, ±10%

Output Voltage

0 to 2V DC, relative to frequency setting of range

Sweep/Manual

Switch selector

Sweep/Rate

100:1 ratio maximum, adjustable

Sweep/Time

0.5sec to 30 sec. adjustable

Sweep/Mode

Lin/Log. switch selector

Depth

0 to 100%

Modulation Frequency

400Hz (INT), DC to 1MHz (EXT)

Carrier BW

100Hz to 3MHz (-3dB)

EXT Sensitivity

≤ 10Vpp for 100% modulation

Deviation

0 to ±5%

Modulation Frequency

400Hz (INT), DC to 20kHz (EXT)

EXT Sensitivity

≤ 10Vpp for 10% modulation

Internal/External

Switch selector

Range
 

0.3MHz to 3MHz internal

Time base accuracy ±1 count

5Hz to 150MHz External

Time Base

±20ppm (23°C, ±3°C), after 30 min. warm up

Resolution

10nHz (1Hz range); 1kHz (100MHz range)

Input Impedance

1MΩ/150pF

Sensitivity
 

≤ 35mVrms (5Hz to 100MHz)

≤ 45mVrms (100MHz to 150MHz)