Analog Devices AD9142A-M5372-EBZ Quick Start Manual page 9

VCO Divider.
2. Set PLL Charge Pump Current and PLL Loop BW settings to 7.
3. Set the PLL Mode to Manual.
4. Turn on PLL Enable.
5. Set the PLL Mode to Auto.
EVB Jumper Configurations
This evaluation board allows evaluation of both the DAC IF outputs as well as the modulator RF
outputs. By default, the solder jumpers are configured to look at the modulator RF outputs. Below is a
table listing the jumper configurations and SMA connector connections needed to view either output
on a spectrum analyzer.
Output Viewed
I DAC Output
Q DAC Output
ADL5372 RF Output
Note: When viewing the modulator output, a local oscillator (LO) must be connected to J15 ("LO_IN")
to properly modulate the signals
© Analog Devices, Inc. All rights reserved. Trademarks and
registered trademarks are the property of their respective owners.
Figure 9 AD9142A SPI PLL Tab
SMA Connector
J3("DAC1 Output")
J4("DAC2 Output")
J6("MOD_OUT")
Rev 07 Aug 2013 10:33 | Page 9
Jumper Configurations
JP4 & JP5 Pins 1-2 (outer pads)
JP6 & JP7 Pins 1-2 (outer pads)
JP4, JP5, JP6, JP7 Pins 2-3 (inner pads)
www.analog.com