Home Up Contact On Line Order Site Map
T: +44 (0)1480 399499 e-mail:sales@tecstar.co.uk  www.tecstar.co.uk F: +44(0)1480 399503 
European distributor for Kenwood & Tecstar test and measurement, PrismSound audio analysers.

 
Function Generators
FG-273A FG-275
 

Outline
The FG-275/FG-273A are function generators which generates sine wave, triangle wave, square wave and pulse wave, etc. It covers a wide ranges of 0.5 Hz to 5 MHz for the FG-275 and 0.2 Hz to 2 MHz for the FG-273A, while the digital display enables accurate frequency settings. Furthermore, the VCF, DC offset, sweep function and other features enable the FG-275/FG273A to be used in a wide variety of applications including analogue circuits as well as digital circuits.
Features
●Wide frequency range
From an extreme low frequency up through above audible band of 7 ranges (FG-275：0.5Hz to 5MHz, FG-273A：0.2Hz to 2MHz).

●Various output wave forms
In addition to sine wave, triangle wave, square wave, TTL level square wave and CMOS level square wave output are provided for the digital circuit experiment had been made possible.

●LOG/LIN sweep function
The logarithm and liner sweep are provided. Especially the FG-275 has ability of an independent start and stop frequency setting.

●Frequency Counter function
An external counter input terminal can be measured from 1 Hz to 10MHz signal.

●VCF (External frequency control terminal)
An external voltage (0 to 10V) can control the output frequency.

●SPECIFICATIONS
 
SPECIFICATIONS
Item FG-275 FG-273A
Output waveform　
　 Sinewave‚ squarewave. trianglewave‚ TTL-Level/CMOS-level squarewave‚ 
pulse waveform and sawtooth waveform 
Frequency range　
　 0.5Hz to 5MHz  0.2Hz to 2MHz 　
Frequency accuracy
　 5 × 10-5 ± 1 digit   2 × 10-5 ± 1 digit
Sinewave characteristics
Distortion 1% or less (50 Hz to 50 kHz)‚ 2% or less (10 Hz to 50 Hz)‚ 1.5% or less (50 kHz to 500 kHz) 
Frequency characteristics ± 1.0dB (50 Ω Load‚ 500 kHz or less) 
Squarewave characteristics
Symmetry ± 3% max. (at 100Hz) 
Rise and fall time 50 ns max. (maximum output) 100ns max. 
Trianglewave characteristics
Linearity 1% or less (at 5 Hz to 100kHz) 1% or less (at 100kHz)
TTL output characteristics 
Rise and fall time / output 25nsec or less / TTL Level 
CMOS output characteristics  
Rise and fall time / output 80nsec or less / 5 V to 15 V continuously variable
Sweep characteristics  
Internal sweep Linear or logarithm sweep
Sweep speed 0.2 Hz (5sec) to 100 Hz (10msec) 0.5 Hz (2sec) to 50 Hz (20 msec)
Sweep width 1:1 to 500: 1/continuously variable 1:1 to 1000:1/continuously variable
Sweep output 0 to 10 V / frequency increase at right direction
External sweep
Input voltage 0 to 10V frequency increase at right direction 
Frequency variable range 500 :1 max. 1000:1 max.
Maximum input ± 20V (DC/AC peak) 
Input impedance Approx. 13 kΩ 
Frequency counter characteristics
Display 5 digit display (LED) 6 digit display (LED)
Frequency range /Gate time 5 Hz to 10 MHz /0.01 sec‚ 0.1 sec‚ 1 sec‚ 10 sec.
Accuracy ± 5 × 10-5 ± 1 count  ± 2 × 10-5 ± 1 count 
Input sensitivity 30 mVrms or less
Maximum input voltage 42 V (DC AC peak)
Input impedance 1 MΩ‚ 50 pF or less
Output characteristics
Output voltage 200 mV p-p to 20 V p-p (open circuit) / 100 mVp-p to10 Vp-p (50Ω load)
Attenuator -10dB/-20dB/-40dB steps with continuously variable -20dB/-40dB steps with continuously variable
Output impedance 50 Ω ± 10%
Logarithmic variable range 1:1 to 40:1 or more 
DC offset ± 10V (open circuit) / ± 5V (50Ω Load) / continuously variable 
Environmental condition
Temperature/humidity for operation 0°C to 40°C‚ 80% max 
Temperature/humidity for spec 23°C ± 5°C‚ 70% max.
Others 
Power source AC 100/120/220/230V ± 10 % 50/60Hz‚ Approx. 20W
Dimensions / weight 240 (W) × 64 (H) × 190 (D) mm / 1.8 kg 
Accessories Instruction manual (1)‚ power code (1)



 

 

 

 

 

Send mail to sales@tecstar.co.uk. Main web page links: www.tecstar.co.uk  www.starcom1.com
Last modified: 10-09-04