Product Specification

PE42821

Page 9 of 12

Document No. DOC-13714-3 │ www.psemi.com

©2012-2013 Peregrine Semiconductor Corp. All rights reserved.

Figure 14. Evaluation Board Layout

Evaluation Kit

The PE42821 Evaluation Kit board was designed

to ease customer evaluation of the PE42821 RF

switch.

The evaluation board in Figure 14 was designed

to test the part. DC power is supplied through J10,

with VDD on pin 9, and GND on the entire lower

row of even numbered pins. To evaluate a switch

path, add or remove jumpers on V1 (pin 3) using

Table 5.

The ANT port is connected through a 50Ω

transmission line via the top SMA connector, J1.

RF1 and RF2 paths are also connected through

50Ω transmission lines via SMA connectors as J2

and J3. A 50Ω through transmission line is

available via SMA connectors J5 and J6. This

transmission line can be used to estimate the loss

of the PCB over the environmental conditions

being evaluated. An open-ended 50Ω

transmission line is also provided at J4 for

calibration if needed.

Narrow trace widths are used near each part to

improve impedance matching. The shunt C1 on

RFC port is to provide for high frequency

impedance matching.

PRT-10605