WISCO International (Instek GFG-8255A)



FEATURES Frequency Range: 0.5Hz ~ 5MHz Waveforms: Sine, Triangle, Square, Ramp, TTL and CMOS Output External Voltage Controlled Frequency (VCF) Function Duty Cycle Control with Signal Inversion Capability Variable DC Offset Control Two-Step (-20dBx2) and Variable Attenuator Built-in 6 Digit Counter with INT/EXT Function Up to 150MHz / High Resolution INT/EXT AM/FM Modulation (GFG-8255A) LIN/LOG Sweep Mode (GFG-8255A) GCV Output for Synchronization (GFG-8255A)

Main
Frequency Range	0.5Hz to 5 MHz (7 ranges)
Amplitude	>10Vp-p (into 50Ω load)
Impedance	50Ω +10%
Attenuator	-20dB+1dB x 2
DC Offset	<-5V ~ >5V (into 50Ω load)
Duty Control	80% : 20% : 80% to 1MHz Continue variable
Display	6 digit LED display
Sine Wave
Distortion	<1%, 0.5Hz ~ 100kHz
Flatness	<0.3dB, below 500kHz； <1dB, below 5MHz
Triangle Wave
Linear	>98%, 0.5Hz ~ 100kHz； >95%, 100kHz ~ 5MHz
Square Wave
Symmetry	+2%, 1Hz ~ 100kHz
Rise or Fall Time	< 50nS at maximum output (into 50Ω load)
CMOS Output
Level	4Vpp+1Vpp ~ 14.5Vpp+0.5Vpp adjustable
Rise or Fall Time	<120nS
TTL Output
Level	>3Vpp
Fan Out	20 TTL load
Rise/Fall Time	<25nS
VCF
Input Voltage	0V~10V �1V(100 : 1)
Input Impedance	10kΩ �10%
GCV
Output Voltage	To set the voltage between 0V ~ 2V as per different frequency
Sweep Operation
Sweep/Manual	Switch selector
Sweep/Rate	100 : 1 ratio max. and adjustable
Sweep/Time	0.5sec. ~ 30sec. adjustable
Sweep/Mode	Lin./Log. switch selector
Amplitude Modulation
Depth	0 ~ 100%
MOD. Frequency	400Hz (INT), DC ~ 1MHz(EXT)
Carrier BW	100Hz ~ 5MHz (-3dB)
EXT Sensitivity	<10Vpp for 100% modulation
Frequency Modulation
Deviation	0 ~ + 5%
MOD. Frequency	400Hz(INT), DC ~ 20kHz(EXT.)
EXT. Sensitivity	<10Vpp for 10% modulation
Frequency Counter
INT./EXT.	Switch selector
Range	0.5Hz ~ 5MHz (5Hz ~ 150MHz EXT.)
Accuracy	Timebase accuracy �1 Count
Timebase	�20ppm (23�C�5�C) after 30 minutes warm up
Resolution	The maximum resolution is 100nHz for 1Hz and 1Hz for 100MHz
Input Impedance	1MΩ//150pF
Sensitivity	<35mVrms (5Hz ~ 100MHz)；< 45mVrms (100MHz ~ 150MHz)
Power Source	AC 115V/230V�15%, 50/60Hz
Accessories	Power cord � 1, Instruction manual � 1, GTL-101 � 2
Dimensions & Weight	251(W) � 91(H) � 291(D) mm, Approx. 2.4kg