GW Instek GFG-8255A - 5MHz Function Generator with Lin/Log Sweep, GCV Function, AM/FM Modulation
The GFG-8200A product family offers a complete solution in generating signals at the 3MHz/5MHz ranges. All models are embedded with standard functions such as TTL/CMOS/Ramp output, External Voltage Controlled Frequency (VCF), and built-in 6-digit counter (except for GFG-8215A).
Further versatility of Logarithmic and Linear sweep is added into GFG-8255A/8219A/8217A, while GCV output feature and AM/FM modulation are available in GFG-8255A/8219A. All these integrated functions and user-friendly operations of the GFG-8200A series are made to accommodate the applications in audio response testing, vibration testing, servo system evaluation, ultra sound application, etc.
- Frequency Range : 0.5Hz ~ 5MHz
- Waveforms：Sine, Triangle, Square, Ramp, TTL and CMOS Output
- External Voltage Controlled Frequency (VCF) Function
- Duty Cycle Controlled with Signal Inversion Capability
- Variable DC Offset Control
- Two-Step (-20dB x 2) and Variable Attenuator
- Built-in 6 Digit Counter with INT./EXT. Function up to 150MHz / high resolution
- INT./EXT. AM/FM Modulation
- LIN/LOG Sweep Mode
- GCV Output for synchronization
| 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) |
General
| 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 |
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