0433BM15A0001E Datasheet, PDF (3/27 Pages) Johanson Technology Inc. – Johanson Technology Matched Balun Filters for CC110x & CC111x

Design Note DN025
3 Reference Designs Available
There are basically three reference designs available for CC110x, CC111x and CC11xL;
each reference design has its own particular advantage.
3.1 Discrete Reference Design
The traditional 868/915 MHz reference design for the CC110x and CC111x has been the
discrete solution [8] shown in Figure 2; 315/433 MHz reference design has been the discrete
solution [9] shown in Figure 3. This design can use either multi-layer inductors or wire-wound
inductors; when using wire-wound inductors, this is the best reference design for
performance.
Figure 2. Discrete Reference Design for the CC110x and CC111x 868/915 MHz (no
decoupling capacitors shown)
Figure 3. Discrete Reference Design for the CC110x and CC111x 315/433 MHz (no
decoupling capacitors shown)
SWRA250A
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