Analog Devices AD9125 Evaluation Board AD9125-M5372-EBZ AD9125-M5372-EBZ データシート

 

 

 

Rev. A | Page 1 of 5 

 

Sinusoidal Clock Source (at least 1.0GHz) 
Sinusoidal Clock Source (for modulator LO) 
Spectrum Analyzer 
DC Power Supply 
Data Pattern Generator Series 2 (DPG2) 

The AD9125 Evaluation Board connects to a DPG2 to allow for quick evaluation of the AD9125. Control of the SPI port in the AD9125 is 
available through USB with accompanying PC software.   

To ease the subsystem evaluation, a clock distribution chip (AD9516) and a quadrature modulator are also designed into this evaluation 
board.  

 

SOFTWARE  

The AD9125 Evaluation  board is designed to receive data from a Data Patten Generator 2 (DPG2). The DAC Software Suite, plus the 
AD9125 Update, is required for evaluation. The DAC Software Suite is included on the Evaluation Board CD, or can be downloaded from 
the DPG web site at http://www.analog.com/dpg. This will install DPGDownloader (for loading vectors into the DPG2) and the AD9125 
SPI Controller application.  

 

Connect a +5V DC power supply to the banana jacks (P5 and P6). A clock source should be connected to the SMA jack labeled J1 
(CLKIN). The AD9516 buffers this clock and distributes clock signals with proper frequencies to the AD9125 and the DPG2. In order to 
monitor the AD9125 outputs, a spectrum analyzer should be connected to the SMA jack labeled J3 (DAC1_P) for I channel DAC or J8 
(DAC2_P) for Q channel DAC. The DPG2 connects through connector P1 and P2 on the left edge of the evaluation board, and the USB 
cable should be connected to the mini USB connector labeled XP2 USB on the lower left side of the board. Note that the PC software 
needs to be installed before connecting the USB cable to your computer. 

There are 7 pin jumpers and 13 solder jumpers on the evaluation board. The pin jumpers are corresponding to the 6 supplies, i.e., 
AVDD3.3, DVDD1.8, CVDD1.8 and etc, on the board. They serve as ‘switches’ that determine if the LDOs on board or external supplies 
are used for each individual supply. Most of the pin jumpers, except JP1, are 2 pin jumpers. They are shunted by default, which means on 
board LDOs are used. When an external supply is necessary, pull off the shunt from the corresponding supply and connect the external 
supply to the SMA jack close to the jumper. JP1 should be left in the default configuration.