DIY KIT DDS AD9910 Arduino Shield RF Signal Generator NO ARDUINO Low noise spurs

Description: DIY KIT for DDS AD9910 Arduino Shield Signal Generatorsine wave 420Mhz @1GSPS Low Spurs Low Harmonic,up to sine wave output 600Mhz @1.5GSPS overclock,Attention needs a forced cooling DDS AD9910 Arduino Shield RF Signal Generator DDS (Direct Digital Synthesis) Analog Devices AD9910 Arduino Shield by GRA & AFCHEasy connection to Arduino MEGA 2560 without additional wires and convertersAll functions of the DDS AD9910 are brought to the contacts of the Arduino MEGAWith this you can fully reveal all the capabilities of the DDS AD9910 ShieldOpensource Software available on our GitHub repository: afch/DDS-AD9910-Arduino-ShieldVideo review on our YouTube channel: youtu.be/_MUsmr0cAD4 Listing includes:AD9910 Shield Board (Bare PCB)Set of Parts and Components (Electronics, Screws, Nuts, Spacers)OLED Display (included)Clock Chip (included, TCXO 1ppm)BOM List of Parts and Components for DIY KIT DDS AD9910 RF Unit support control from PC via Serial Port Commands We recommend Ultra Low Noise Reference Oscillator for AD9910 Shield:RCLN1000 1GHz Ultra Low Noise Reference Oscillator for DDS AD9910 AD9912 Units https://www.ebay.com/itm/185938223226 We recommend to use RF Amplifier with our DDS Shield Boards(RF Amplifier 8-2000 MHz, GAIN = 20 dB, P = +20 dBm MMIC MRFA89 SOT-89):https://www.ebay.com/itm/184629327037 Key Benefits:Low harmonics no more than -60dBc. An output RF transformer is used for the correct operation of the current mirror.Small spurs.4 layer board. Signal lines TOP and Bottom, inner layers Ground and Power.RF Unit supports control from PC via Serial Port Commands. List of Commands presented belowLow Noise LDO Stabilizers.Separate power supply for all analog and digital lines (1.8V and 3.3V), 5 pcs IC voltage stabilizers are used. Additionally, there is an RF Ferrite bead interchange.High-speed decoupling Level converter and TTL 5V matching. Types of possible reference oscillators (choose one of them in the selector):XO – Crystal 25 MHz 20 ppm internal oscillator with PLL at 1 GHz.TCXO – 10 MHz 1 ppm external oscillator PLL at 1 GHz.EGEN – external generator up to 1.5 GHz. (To connect an external clock source of up to 1.5 GHz, this source is NOT INCLUDED).OCXO – Oven Controlled Crystal Oscillators deliver the ultimate piezo electric performance with stabilities down to less than ±1 ppm. Additionally balancing transformer is used for TCXO, EGEN and OCXO options:Easy to connect OLED display.Control buttons for control via the program menu.The synthesizer is capable to generate sine wave, AM or FM modulated signal.The software allows you to select and configure the frequency of the clock generator through the user menu (without the need to recompile the program).Any settings can be stored in non-volatile EEPROM memory (located at Arduino Mega).Basic settings are applied and saved automatically.This shield support overclocking the AD9910 core to 1.5 GHz (heatsink is recommended).DDS AD9910 Shield has ability to generate a signal up to 600 MHz with a core overclocking up to 1.5 GHz,(to suppress harmonics, it is recommended to overclock the AD9910 for frequencies above 400 MHz).Has ability to increase output power by +4 dBm when “DAC Current HI” is activated. Phase NoiseThis parameter is very important and interesting for those who buy DDS.Since the intrinsic phase noise of DDS is obviously less than that of PLL generators, the final value is highly dependent on the clock source.In order to achieve the values stated in the datasheet for AD9910, we strictly adhered to all recommendations from Analog Devices.When designing our DDS AD9910 Arduino Shield we have followed these requirements:PCB layout in 4 layers, separate power supply of all 4 power lines (3.3 V digital, 3.3 V analog, 1.8 V digital, and 1.8 V analog). Therefore, when buying our DDS AD9910 Arduino Shield, you can focus on the data from the datasheet on the AD9910.Figure 16 shows the noise level when using the built-in PLL in DDS. The PLL multiplies the frequency of a 50 MHz generator by 20 times. We use a similar frequency – 40 MHz (x25 Multiplier) or 50 MHz (x20 Multiplier) from TCXO which gives even more stability.Figure 15 shows the noise level when using an external reference clock 1 GHz, with the PLL off. DDS AD9910 Arduino Shield Phase NoiseDDS AD9910 Arduino Shield Phase Noise Comparing these two plots, for example, for Fout = 201.1 MHz and the internal PLL turned on at 10 kHz carrier offset, the phase noise level is -130 dBc @ 10 kHz. And with the PLL off and using external clocking, the phase noise is 145 dBc @ 10kHz. That is, when using an external clock phase noise by 15 dBc better (lower).For the same frequency Fout = 201.1 MHz, and the internal PLL turned on at 1 MHz carrier offset, the phase noise level is -124 dBc @ 1 MHz. And with the PLL off and using external clocking, the phase noise is 158 dBc @ 1 MHz. That is, when using an external clock phase noise by 34 dBc better (lower). Conclusion: when using external clocking, you can get much lower phase noise than using the built-in PLL. But do not forget that in order to achieve such results, increased requirements are put forward to the external generator. OLED Display Menus:DDS AD9910 Main MenuDDS AD9910 Core Clock MenuDDS AD9910 AM Modulation MenuDDS AD9910 FM Modulation Menu Dear Customers!If you have ANY questions, PLEASE ASK US Specifications:Frequency:100 kHz - 420 MHz (600 MHz*) in 1 Hz stepSpurs max:-60 dBcFrequency step:1 HzOutput power:+0 dBm (+4**) to -84 dBm (on 50 Ohm load)Output level up to:1 Vpeak-to-peak (at +4 dBm)Power Supply:USB or External Power Supply 7V DC 1AOutput filter:7-th orderModulation frequency for AM (amplitude modulation):10 Hz to 100 kHz in 1 Hz stepAM modulation depth:0% to 100% in 1% incrementsModulation Frequency for FM (Frequency Modulation):10 Hz to 100 kHz in 1 Hz stepFM modulation deviation frequency:0 Hz to 100 kHz in 1 Hz stepReference clock sources (on choice):XO-Crystal Oscillator, TCXO 1ppm, OCXO 0.1ppm, Crystek, or External Oscillator up to 1.5 GhzSize:53.26 x 102mm * When overclocking the core to 1.5 GHz ** When the "DAC Current HI" function is activated Serial Port Commands: List of Serial Port Commands:Starting with version 1.02, the ability to control via the serial port has been added.F – Set Frequency in Hz (100000 – 600000000)P – Set Output Power in dBm (-72 — 0 OR -68 — +4, depending on “DAC current” E – Enable OutputD – Disable OutputM – Get ModelV – Get Firmware Versionh – Help; – Commands SeparatorExample:F100000;P-2Set Frequency to 100 kHz, and Output Power to -2 dBm.Any number of commands in any order is allowed. Serial Port Settings:Speed – 115200 BoudsData Bits – 8Stop Bits – 1Parity – NoDTR – OFF Windows:An example of setting up a serial port in the Windows console:mode COM3 baud=115200 DTR=OFF Data=8Usage example:echo F100000000 > COM3 Ubuntu 22.04:An example of setting up a serial port in the Ubuntu:sudo usermod -aG dialout $USER_NAME$sudo chmod a+rw /dev/ttyUSB0sudo stty -F /dev/ttyUSB0 115200 cs8 ixoff -hupcl -echoUsage example:echo “F100000000” > /dev/ttyUSB0 DDS AD9910 Arduino Shield References:AD9910 Shield Board Top Bare PCB: AD9910 Shield Board Bottom Bare PCB: AD9910 Shield Board Top Populated PCB: AD9910 Shield Board Bottom Populated PCB: DIY KIT for DDS AD9910 Shield: DDS AD9910 Arduino Shield Spectrograms: GRA & AFCH DDS AD9910 Shield VS DDS Board from China Spectrograms Comparison:Spectrum Analyzer Screenshots (200 MHz)Spectrum Analyzer Screenshots (350 MHz)Spectrum Analyzer Screenshots (100 MHz)Spectrum Analyzer Screenshots (10 MHz) GRA & AFCH DDS AD9910 Shield Spectrograms:500 MHz, DAC Current set to “HI”600 MHz, DAC Current set to “HI”AM (Amplitude Modulation) Modulation Freq: 1kHz, Depth: 50%FM (Frequency Modulation) Frequency: 1 kHz Deviation: 3 kHzAM (Amplitude Modulation) Carrier: 1 MHz Frequency: 100 kHz Depth: 50% DDS AD9910 Arduino Shield Thermal images:AD9910 Board temperature measured with Flir E8 thermal imager at Core Clock @ 1000 MHz AD9910 Board temperature measured with Flir E8 thermal imager at Core Clock @ 1440 MHz Arduino MEGA to Shield AD9910 Pinout Scheme: DDS Arduino Shield AD9910 RF Signal Generator Overview:Please refer to full video Overview of our DDS AD9910 Shield RF Signal Generator on our YouTube channel: 'GRA & AFCH' DDS Arduino Shield AD9910 RF Signal Generator:Dear Customers!If you have ANY questions, PLEASE ASK US Shipping and Return InformationAll Items are Shipped from UkraineVia International registered AirmailShipments made within 1 business dayAfter Payments received and verifiedIt takes about 2-5 days via UPS ExpressAnd 15-35 days via Economy ShippingWe combine multiple items to save on Shipping UPS Express Shipping time (recommended): Europe:2-4 daysGermany:2-4 daysUSA, Canada:3-5 daysAsia, South America:3-5 daysAustralia, New Zeland:3-5 daysAfrica, Central America:3-5 days Economy Shipping time: Europe:15-12 daysGermany:15-18 daysUSA, Canada:18-35 daysAsia, South America:18-35 daysAustralia, New Zeland:20-35 daysAfrica, Central America:23-35 days Return Policy All Returns are acceptedFor Return you should contact Us within 14 Days after receiving the ItemRefunds are made as Money back or Replacements (buyer’s choice)Return Shippings are paid by the buyerNo restocking fees are charged Dear Customers!If you have ANY questions, PLEASE ASK US

Price: 215.95 USD

Location: Dnipro

End Time: 2023-12-21T06:03:34.000Z

Shipping Cost: 10 USD