Product Description
DDS Function Generator
Brand:GRATTEN
• Direct Digital Synthesis (DDS) technology, 2 independent output channels
• 3.5-inch TFT display, English/Chinese menu
• 100MSa/s sample rate, 8bits vertical resolution, 1kpts waveform length
• 32 built-in pre-stored waveforms, 8 user defined arbitrary waveforms
Main Features
• Direct Digital Synthesis (DDS) technology, 2 independent output channels
• 3.5-inch TFT display, English/Chinese menu
• 100MSa/s sample rate, 8bits vertical resolution, 1kpts waveform length
• 32 built-in pre-stored waveforms, 8 user defined arbitrary waveforms
• Minimum stable output waveform: 1mV(50Ω)
• Multiple modulation functions: FM, FSK, ASK, PSK
• Frequency sweep, amplitude sweep and burst functions
• Over voltage, over current, output short-circuit and reverse voltage protections
• Standard parts: RS232 interface
• Optional parts: 200 MHz frequency counter, 7W(8Ω) power amplifier
Technical Specifications
Model | ATF-20E |
Frequency range(sine) | 1μHz~20MHz |
Output Characteristics : Channel A | |
Waveform Characteristics | |
Waveform type | 32 built-in pre-stored waveforms including: Sine, Square, Triangle, Ramp,
Pulse etc. and 8 user defined arbitrary waveforms |
Waveform length | 1024 points |
Sample rate | 100MSa/s |
Waveform amplitude resolution | 8bits |
Sinusoidal harmonic rejection | ≥40dBc (<1MHz),≥35dBc (1MHz~20MHz) |
Sine wave total distortion | ≤1% (20Hz~200kHz) |
Square rise/fall edge time | ≤35ns |
Square overshoot | ≤10% |
Square wave duty cycle | 1%~99% |
Frequency Characteristics | |
Frequency range | sine: 1μHz~Max.frequency (MHz)
square: 1μHz~5MHz other waveforms: 1μHz~1MHz |
Frequency resolution | 1μHz |
Frequency accuracy | ±(5×10-5) |
Frequency stability | ±5×10-6/3 hours |
Amplitude Characteristics | |
Amplitude range | 2mVpp~8Vpp 15MHz~20MHz (high impedance) |
Amplitude resolution | 20mVpp (amplitude>2Vpp), 2mVpp (amplitude<2Vpp) |
Amplitude accuracy | ±(1%+2mVrms) (high impedance, true RMS, frequency at 1kHz) |
Amplitude stability | ±0.5%/3 hours |
Amplitude flatness | ±5% (frequency<10MHz), ±10% (frequency >10MHz) |
Output impedance | 50Ω |
DC Offset Characteristics | |
Offset range | ±10V (high impedance, attenuation 0dB) |
Resolution | 20mVdc |
Offset accuracy | ±(1%+20mVdc) |
Sweep Characteristics | |
Sweep type | frequency sweep, amplitude sweep |
Sweep range | free to set the start and stop points |
Sweep time | 100ms~900s |
Sweep direction | Up, Down, Up-Down |
Sweep mode | linear, logarithmic |
Control mode | auto sweep or manual sweep |
Frequency Modulation Characteristics | |
Carrier signal | channel A signal |
Modulation signal | internal signal of channel B or external signal |
FM deviation | 0%~20% |
Shift Keying Characteristics | |
FSK | free to set carrier frequency and hop frequency |
ASK | free to set carrier amplitude and hop amplitude |
PSK | hop phase 0~360°, max. resolution 1° |
Alternative rate | 10ms~60s |
Burst Characteristics | |
Carrier signal | channel A signal |
Trigger signal | TTL_A signal |
Burst count | 1~65000 cycles |
Burst mode | Internal TTL, External, Single |
Output Characteristics : Channel B | |
Waveform Characteristics | |
Waveform type | 32 built-in pre-stored waveforms including: Sine, Square, Triangle, Ramp,
Pulse etc. and 8 user defined arbitrary waveforms |
Waveform length | 1024 points |
Sample rate | 12.5MSa/s |
Waveform amplitude resolution | 8bits |
Square duty cycle: | 1%~99% |
Frequency Characteristics | |
Frequency range | Sine: 1μHz~1MHz Other waveforms: 1μHz~100kHz |
Frequency resolution | 1μHz |
Frequency accuracy | ±(1×10-5) |
Amplitude Characteristics | |
Amplitude range | 50mVpp~20Vpp (high impedance) |
Amplitude resolution | 20mVpp |
Output impedance | 50Ω |
Burst Characteristics | |
Carrier single | channel B signal |
Trigger signal | TTL_B signal |
Burst count | 1~65000 cycles |
Burst mode | Internal TTL, External, Single |
TTL Output Characteristics | |
Waveform characteristics | Square, rise/fall time≤20ns |
Frequency characteristics | 10mHz~1MHz |
Amplitude characteristics | TTL, CMOS compatible, low level<0.3V, high level>4V |
Remote operation | |
Remote interface | Standard RS232 serial interface |
General Characteristics | |
Power source | Voltage: AC220V±10%, AC110V±10% (Pay attention to the position of voltage selection switch)
Frequency: 50Hz ±5% Power: <45VA |
Environment | Temperature: 0~40°C Humidity: <80% |
Operation characteristics | Keypad operation and rotary knob operation |
Display | TFT display, 320*240, English, Chinese (simplified), Chinese (traditional) |
Manufacturing technology | Surface Mount Technology, Integrated Circuit. High reliability and stability. |
Accessories | Power cord, Q9 test lead, Q9 BNC-clip test lead, Operation manual, RS232 cable, RS232 interface software CD |
Dimension | Machine dimension: 385(D)×260(W)×110(H)mm
Chassis dimension: 415(D)×295(W)×195(H)mm |
Weight | 3.5kg |
Optional Parts Characteristics | |
Frequency counter | Testing frequency range: 1Hz~200MHz
Input signal amplitude: 100mVpp~20Vpp |
Power amplifier | Max. output power: 7W (8Ω), 1W (50Ω)
Max. output voltage: 22Vpp Frequency bandwidth: 1Hz~200kHz |