A0230004tek
A0230004tek

GAO Tek DDS Function Generator

ID: A0230004tek
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Product Description

Overview

This direct digital synthesis (DDS) function generator is designed for use in such applications as communication equipment and electronic components production. This DDS function generator has outstanding features including convenient data input via dial or numerical keyboard and provides protection against over voltage, over current, short circuit and reverse voltage. The generator can store 40 groups of settings.

Key Features

  • Uses Direct Digital Synthesis (DDS) technology
  • Stable output waveforms down to 1 mV (50 Ω)
  • Convenient data input via dial or numerical keyboard
  • High pulse duty cycle resolution of up to 0.1%
  • RS232 interface, USB interface, optional power amplifier
  • Stores/recalls 40 groups of settings

Technical Specifications

Model A0230004A A0230004B A0230004C
Frequency Range 40 uHz to 10 MHz 40 uHz to 20 MHz 40 uHz to 40 MHz
Waveform (CHA)
Waveform Types Sine, Square, Pulse, DC
Waveform Length 4 points to 16000 points
Amplitude Resolution 10 bits
Sampling Rate 180 MSa/s
Harmonic Distortion ≥50 dBc (≤1 MHz)
≥45 dBc (≤10 MHz)
≥40 dBc (≤20 MHz)
≥30 dBc (≤40 MHz)
Sine Wave Total Distortion ≤0.1% (20 Hz to 200 kHz)
Pulse and Square Wave Rise/fall time: ≤20 ns, Overshoot: ≤5%
Square Wave Duty Cycle 50.0%
Frequency (CHA)
Frequency Range 2 kHz to Max.frequency, resolution 40 MHz
40 µHz to 2 kHz, resolution 40 uHz
Square Wave Range 40 µHz to 20 MHz (A0230004A)
40 µHz to 20 MHz (A0230004B, A0230004C)
Pulse Wave Frequency Range 40 µHz to 10 MHz
Frequency Accuracy ±(5 x 10-5 + 40 uHz)
Frequency Stability ±1 x 10-6 / 3 hours (small TCXO)
Pulse (CHA)
Duty Ratio 1% to 99% (frequency ≤1 MHz)
10% to 99% (frequency ≤10 MHz)
Amplitude (CHA)
Amplitude Range 1 mVpp to 20 Vpp (high impedance)
Max Resolution 1 µVpp (high impedance)
Accuracy ±1% + 1 mVrms (high impedance, RMS, frequency 1 kHz)
Amplitude Stability ±0.5%/3 hours
Amplitude Flatness ±5% (frequency <5 MHz)
±10% (frequency <10 MHz)
±20% (frequency >10 MHz)
Output Impedance 50 Ω
Sine Wave Amplitude Setting Range (50 Ω) 1 mVpp to 10 Vpp, when output frequency ≤10 MHz
1 mVpp to 7 Vpp, when output frequency ≤40 MHz
Amplitude Setting Range (High Impedance) 1 mVpp to 20 Vpp, when output frequency ≤10 MHz
1 mVpp to 14 Vpp, when output frequency ≤40 MHz
DC Offset (CHA)
Offset Range (offset + 0.5 × peak-to-peak amplitude) ≤2 mVdc × attenuation coefficient (when peak-to-peak amplitude ≤4, auto attenuation)
(offset + 0.5 × peak-to-peak amplitude) ≤10 mVdc × attenuation coefficient (when peak-to-peak amplitude ≥4, auto attenuation)
Max Resolution 20 mV(high impedance)
Accuracy ±(1% + 20 mV) (amplitude ≤4 Vpp)
Sweep (CHA)
Sweep Type Frequency sweep, amplitude sweep
Sweep Range Free to set starting point and end point
Sweep Step Higher than any value of the resolution
Sweep Rate 100 ms to 60 s/step
Sweep Mode Up, Down, Up-Down
Control Mode Auto sweep or manual sweep
Frequency Modulation (FM) (CHA)
Carrier Waveform Sine wave or square wave, with frequency same as master waveform
Modulating Mode Internal or External
Modulating Signal 40 types internal waveforms or external signals
Modulating Signal Frequency 40 µHz to 50 kHz
FM Deviation 0% to 20%
External Signal Input Amplitude 20 Vpp (-10 V to 10 V)
External FM carrier frequency accuracy ≤10-3, modulation error ≤ ±20%
Amplitude Modulation (AM) (CHA)
Carrier Waveform Sine wave or square wave, with frequency same as master waveform
Modulating Mode Internal or external
Modulating Signal 40 types internal waveforms or external signals
Modulating Signal Frequency 40 uHz to 50 kHz
Distortion ≤2%
Modulation Depth 0% to 120%
Relative Modulating Error ≤±5%
External Signal Input Amplitude 20 Vpp (-10 V to 10 V)
Shift Keying (CHA)
FSK Free to set carrier waveform frequency and hopping frequency
ASK Free to set carrier waveform amplitude and hopping amplitude
PSK Hopping phase: 0 to 360°, resolution: 11.25°
Alternative rate 10 ms to 60 s
CHB output Characteristics
Waveform Waveforms: 32 types waveforms, including Sine, Square, Triangle, saw tooth, ladder
Length: 1024 points
Amplitude resolution: 8 bits
Sampling rate : 100 Msa/s
Frequency Sine: 10 µHz to 1 MHz; Other waveforms: 10 uHz to 50 kHz
Resolution : 40 uHz
Accuracy: ±(1 × 10-5 + 40 µHz)
Amplitude Amplitude range : 100 mVpp to 20 Vpp (high impedance)
Amplitude resolution : Max.2 mVpp
Output impedance : 50 Ω
Harmonics (CHB is used as the harmonic signal of CHA) Harmonic Time: 0.1 times to 250.0 times
Harmonic Frequency < 1 MHz
Phase Adjustment: coarse adjustment: 11.25 degree/step, fine adjustment: 2 degree/step
Burst CHB signal is used as burst signal
Frequency of CHB: 40 µHz to 1 MHz
Burst Frequency: 30 µHz to 50 kHz
Burst Count: 1 cycle to 65000 cycles
Burst Mode: continuous burst , single burst, external burst
Frequency Counter
Testing Frequency Range 1 Hz to 200 MHz
Input Signal Amplitude 100 mVpp to 20 Vpp
Low Pass Filter Cut off frequency 100 kHz
Testing Time 10 ms to 60.0 s
Common Characteristics
Operation Characteristics Key operation for all functions, menu display, rotary dial adjustment
Display Display: TFT, English
Power Requirements Power Requirements: AC220 V (1±10%) / AC110 V (1±10%)
Frequency: 50 Hz/60 Hz (1±5%)
Power Consumption: <45 VA
Environmental Condition Temperature: 0 °C to 40°C, Humidity: <80%
Standard Accessories Power cord × 1, Operation manual × 1, software CD × 1, USB cable × 1, RS232 cable × 1, BNC-BNC cable × 1, test lead × 1
Dimension 415 mm × 295 mm × 195 mm
Weight 4 kg

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