Introduction: . Advanced Direct Digital Synthesis(DDS) technology, 2 output channels, build-in counter, 25MHz maximum output frequency (5 MHz max square wave) . Monochrome LCD display . 3.5 standard waveforms and DC outputs. 48 preset arbitrary waveforms, 10 groups of 4kpts arbitrary waveforms. . Multi modulation functions: AM, FM, PM, PWM, FSK, and linear/logarithm Sweep and Pulse train waveform outputs . Connectivity: USB Host, USB Device. Rigol DG1000 series function/arbitrary waveform generators use Direct Digital Synthesis (DDS) technology. They can generate accurate, stable, clean, low distortion signals. Specifications: * Model DG1022U (Same as DG1022A) * Maximum Output Frequency 25 MHz (5 MHz square wave) * Output Channels 2 * Sample Rate 100 MSa/s * Arbitrary Waveform Length: * CH1 : 2 pts – 4kpts * CH2 : 2 pts – 1kpts * Resolution 1 μHz * Amplitude: * CH1 : 2 mVpp ~ 10 Vpp (50 Ω) ,4 mV ~ 20 Vpp (High Z) * CH2 : 2 mVpp ~ 3 Vpp (50 Ω) .4 mV ~ 6 Vp (High Z) * Vertical Resolution: * CH1 : 14 bits * CH2 : 10 bits * Standard Interface USB Host & Device  * CH1 : 2 pts – 4kpts * CH2 : 2 pts – 1kpts * CH1 : 2 mVpp ~ 10 Vpp (50 Ω) ,4 mV ~ 20 Vpp (High Z) * CH2 : 2 mVpp ~ 3 Vpp (50 Ω) .4 mV ~ 6 Vp (High Z) * CH1 : 14 bits * CH2 : 10 bits