JDS2900-40M 2 Channel DDS Function Signal Generator Pulse Signal Frequency Meter Condition: Item Type: Signal Generator Material: ABS+Silicone Color: As shown in the picture Model: JDS2900-40M Frequency Characteristics: Sine Wave Frequency Range: 0-40MHz Square Wave Frequency Range: 0-25MHz Triangular Wave Frequency Range: 0-25MHz Pulse Wave Frequency Range: 0~6MHz TTL Digital Wave Frequency Range: 0~6MHz Arbitrary Wave Frequency Range: 0~6MHz Pulse Width Adjustment Range: 40nS-4000S Square Wave Rise Time: ≤10ns Minimum Frequency Resolution: 0.01μHz (0.00000001) Frequency Accuracy: ±20ppm Frequency Stability: ±1ppm/3 hours Wave Characteristics: Waveform Types: Sine wave, square wave, pulse wave (adjustable duty cycle, pulse width and cycle time can be accurately adjusted), triangular wave, partial sine wave, CMOS wave, DC level (set the DC amplitude by adjusting the offset), half Wave, full wave, positive staircase wave, inverse staircase wave, noise wave, exponential rise, exponential fall, multisonic wave, sinc pulse, Lorenz pulse, and 60 user-defined waveforms. Wave Length: 2048 points Waveform Sampling Rate: 266MSa/s Waveform Vertical Resolution: 14 bits Sine Wave: Harmonic Suppression: 245dBc (<1 MHz); 240dBc (1 MHz~20MHz) Total Harmonic Distortion: <0.8% (20Hz~20kHz, 0dBm) Square Wave And Pulse Wave: Overshoot≤5% Pulse Wave Duty Cycle Adjustment Range: 0.1%~99.9% Partial Sine Wave Duty Cycle Adjustment Range: 0.1%-99.9% Sawtooth Wave Linearity: ≥98% (0.01Hz~10kHz) Output Characteristics: Sine Wave Amplitude Range: Frequency ≤10MHz 2mVpp~20Vpp Square Wave/Triangular Wave Amplitude Range: Frequency ≤10MHz 2mVpp-20Vpp Amplitude Resolution: 1mV Amplitude Stability: ±0.5%/5 hours Amplitude Flatness: ±5% (<10MHz); ±10% (>10MHz) Wave Output: Output Impedance: 50Ω± 10% (typical) Protection: All signal output terminals can work within 60 under load short-circuit conditions DC Offset: Offset Adjustment Range: Offset≤10-amplitude/2 Offset Resolution: 0.01 V Phase Characteristics: Phase Adjustment Range: 0~359.9° Phase Resolution: 0.1° TTL/CMOS Output: Low Level: <0.3V High Level: 1V~10V Level Rise/Fall Time: <20ns External Measurement Function: Frequency Counter Function: Frequency Measurement Range: 1Hz~100MHz Measurement Accuracy: Continuous adjustment of gate time 0.01S~10s Counter Function: Counting Range 0-4294967295 Coupling Mode: DC and AC coupling modes Counting Method: Manual Pulse Width Measurement: 0.01us resolution, maximum measurable 20s Period Measurement: 0.01us resolution, maximum measurable 20s Scanning Function: Scanning Channel: CH1 or CH2 Frequency Scanning Type: Linear scanning, logarithmic scanning Scanning Time: 0.1s~999.9s Setting Range: Arbitrarily set between the starting point (0.01Hz) and the maximum output frequency of the corresponding model at the end point Scanning Direction: Forward, reverse and round trip Trigger Function: Number of Pulses: 1-1048575 Trigger Mode: Manual trigger, CH2 trigger, external trigger (AC), external trigger (DC) General Technical Specifications: Display Type: 2.4 inch TFT color LCD display Storage and Loading: Quantity: 100 groups Location: 00 to 99 (the default storage location parameter of 00 is called when the machine is turned on) Arbitrary Waveform: Quantity: 60 groups from 1 to 60 (the default is 15 groups at startup) Interface: Interface Mode: Using USB to serial interface Expansion Interface: Serial port with TTL level mode, convenient for users to secondary development Communication Rate: Using standard 115200bps Communication Protocol: Using commanding line mode, the protocol is open Output: DC5V±0.5V Environmental Conditions: Temperature: 0-40 ℃ Humidity: <80%