The Yokogawa FG220 is a dual-channel synthesized function generator delivering precise waveform generation for test and measurement across mechatronics, automotive design, and complex signal applications. Channels support phase-continuous and internal synchronization modes with -65 dB maximum interchannel crosstalk. The instrument generates sine, square, triangle, pulse, and DC outputs with frequency resolution to 1 µHz and amplitude resolution of 1 mVpp. Frequency accuracy and stability are both ±20 ppm across the 5–40 °C operating range.
Technical Specifications
Output Characteristics
• Maximum output voltage: ±10 V (open circuit)
• Amplitude setting range: ±20 Vpp with ±(0.8% + 14 mVrms) accuracy at 1 kHz
• Offset voltage range: ±10 V with ±(0.3% of setting + 0.5% of amplitude + 40 mV) accuracy
• Output impedance: 50 Ω ±1%
• Attenuator settings: 1/1, 1/10, 1/100 with 0.2% accuracy
• DC output range: ±10 V with ±(0.3% + 20 mV) accuracy
Frequency and Resolution
• Sine/Square: 1 µHz to 15 MHz
• Triangle/Pulse: 1 µHz to 200 kHz
• Frequency resolution: 1 µHz or 9 digits maximum
• Duty cycle resolution: 0.01%
• Offset voltage resolution: 1 mV
• Phase deviation resolution: 0.01 deg
Signal Quality
• Harmonics (2nd–5th): -55 dBc max at 100 kHz, -45 dBc at 1 MHz, -35 dBc at 10 MHz
• Harmonic distortion: 0.3% max (rms, 100 kHz)
• Spurious (1 kHz–100 MHz): -55 dBc max at 100 kHz
Amplitude Flatness
• Sine: ±0.1 dB to 100 kHz; ±0.2 dB to 1 MHz; ±0.5 dB to 10 MHz; +1 dB to 15 MHz
• Square/Pulse (50% duty): ±2% to 10 kHz
• Triangle (50% symmetry): ±3% to 10 kHz
– Key Features
• Dual independent channels with synchronized or phase-continuous modes
• Sweep capability: frequency, phase, amplitude, offset voltage, and duty cycle
• Variable pulse duty cycle and triangle symmetry
• 1 µHz minimum frequency resolution for precision low-frequency testing
• Three-position output attenuator for dynamic range control
– Typical Applications
Mechatronic system design, vehicle electronics testing, signal integrity verification, and applications requiring low-distortion waveforms with extended sweep and modulation control.
