AD936x

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For customers designing Analog devices
RF Agile Transceiver "D936x"

StrongFirst TCXO matching trial for Analog Devices RF Agile Transceiver AD936x Comparison with Analog Devices specifications and measurement data.

Matching Results

The measurement data almost matched the specifications. As conclusion, TCXO5032 is suitable for AD936x reference clock.

		TCXO frequency for reference clock
		19.2MHz	30.72MHz	40MHz
TCXO phase noise		N.A.	N.A.	Matching
TXLO integrated phase noise	800MHz (700MHz to 900MHz)	Matching	Almost Matching	N.A.
	2.4GHz (1.8GHz to 2.7GHz)	N.A.	N.A.	Almost Matching

For more information, please see the following:

· AD9361 Evaluation system

· Reference clock Phase Noise characteristics

· AD9361 TX LO Integrated Phase Noise

Analog Devices AD936x

Analog Devices AD936x RF Agile Transceivers are high performance and highly integrated one that is designed for
small cell and base station application.
- AD9361RF frequency : 800MHz, 2.4GHz, and 5.5GHz

Reference clock recommendation for Analog Devices AD936x

We recommend TCXO5032 for AD936x reference clock as follows.

Product	Size[mm]	Output	Frequency range	Images
TCXO5032	5.0×3.2×1.45t	CMOS	10MHz to 50MHz

AD9361 evaluation system

StrongFirst tested AD9361 Reference Board (AD-FMCOMMS3-EBZ) with our TCXO5032 as external reference clock, and measured TCXO phase noise and TXLO integrated phase noise, and confirmed whether the noise matches AD9361 data sheet at 800MHz and 2.4GHz.

Reference clock Phase Noise characteristics

Phase Noise data is as follows:
- TCXO5032 40MHz without Filter
- TCXO5032 40MHz with Filter
- ADI Expected spec for 40MHz

Conclusion: TCXO5032 40MHz with Filter is qualified by ADI data sheet.

AD9361 TX LO Integrated Phase Noise

♦ LO=700MHz to 900MHz, TCXO frequency=19.2MHz

Conclusion: Our measurement result is qualified by ADI spec sheet.

♦ LO=700MHz to 900MHz, TCXO frequency=30.72MHz

                     

Conclusion: Our measurement result is almost qualified by ADI spec sheet.
The difference is only 0.01 mdeg RMS. at 800MHz.

♦ LO=1.8GHz to 2.7GHz, TCXO frequency=40MHz

Conclusion: Our measurement result is almost qualified by ADI spec sheet.
The difference is only 0.05 mdeg RMS. at 2.4GHz
Our result fluctuates slightly up and down, but the trend of characteristics matches.

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