Analog Devices ADRV9005 Reference Manual page 271

Reference Manual ADRV9001
RF PORT INTERFACE INFORMATION
Differential Receiver Input Interface Circuits
Figure 247. Differential Receiver Interface Using a Transformer
Figure 248. Differential Receiver Interface Using a Transmission Line Balun
Given the wide RF bandwidth applications, SMD balun devices function well, offering acceptable differential balance and insertion loss in a
relatively small (0603, 0805) package.
Example of RX1 A Port Frequency Match Simulation
Advanced Design System (ADS) Setup Using DAC and SEDZ File shows that using the S parameter files for the laminate, matching
components and balun are essential to get the most accurate match. This example uses the receiver port file and laminate file provided by
Analog Devices in the design files package. It uses a more detailed ADS setup than mentioned previously. Figure 249 shows an overview of the
ADS setup.
Figure 249. ADS Example Overview Block Diagram
Manipulate the S1P files for the receiver port to be used in the simulation. The file is generated from a differential port and packaged as a single
port equivalent file. An ADS DAC is used to import the file into ADS and the equations in Figure 250.
Figure 250. ADS Example Calculations
This allows to use the RX_SEDZ_SE as a single-ended port term. Figure 251 shows the setup with the laminate S4P file attached.
analog.com Rev. A | 271 of 377