I am using AD9854 (I & Q output DDS) with ADRF6701(I & Q input Quadrature Modulator with Integrated VCO) to generate SSBSC output (hopping between 935-960 MHz)
The PCB is in design stage at the moment and expected to complete sometime soon within…
Hi ADI engineer:
I'm using ADRF6701 in RFID application ,now i intend to use internal VCO generate modulator LO , i found there is a 714MHz frequency output when i only power on ADRF6701 but not start configure the register , when i configure the register…
I am planning to use AD9854 to interface it with ADRF6701 to generate RF SSB Output frequency in tune of 800-1000 MHz. Our application requires that the frequency to be changed in quick succession/fast frequency sweep with fix PLL frequency…
In your last two plots the noise floor changes depending on your RBW. When you changed span this automatically changed from 200Hz to 2kHz.
Please try to repeat this measurement with the lowest RBW possible (ideally 1Hz).
You are doing a great work out here.
However I have a query which I think I'm sure of. But still I am confirming if this can work?
I have been asked to use AD9854 with ADRF6701-ADRF6703 for this purpose instead of the Up-converter used…
I'm using an ADRF6801 demodulator in combination with an ADRF6701 modulator.
I want to monitor junction temperatures of both chips, so the chips were configured to use the VPTAT temperature proportional voltage output at the MUXOUT pin.
I'm using ADRF 6701 in my project. The problem is that my design does not contain USB interface circuitry for programming the chip with control software. Instead of that I'm using microcontroller to programme the chip via SPI, as it's written…
Question: In the attached plot (labeled Figure 10) from the ADL5375 IQ Modulator Datasheet, LO Leakage degrades significantly vs. temperature at higher frequencies after compensation at 25 degC. What is going on here?
Answer: It is important to understand…