mc33596 Freescale Semiconductor, Inc, mc33596 Datasheet - Page 51

• Manufacturer Part Number: mc33596
• Description: Pll Tuned Uhf Receiver For Data Transfer Applications
• Manufacturer: Freescale Semiconductor, Inc

Freescale Semiconductor
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Power Supply, Ground Connection and Decoupling
— Connect each ground pin to the ground plane using a separate via for each signal; do not use
— Place each decoupling capacitor as close to the corresponding VCC pin as possible (no more
— Locate the VCCDIG2 decoupling capacitor (C13) directly between VCCDIG2 (pin 14) and
RF Tracks, Matching Network and Other Components
— Minimize any tracks used for routing RF signals.
— Locate crystal X1 and associated capacitors C15 and C11 close to the MC33596. Avoid loops
— Use high frequency coils with high Q values for the frequency of operation (minimum of 15).
parasitic inductance.
common vias.
than 2–3 mm away).
GND (pin 16).
occurring due to component size and tracks. Avoid routing digital signals in this area.
Validate any change of coil source.
The values indicated for the matching network have been computed and
tuned for the the MC33596 RF Modules available for MC33596 evaluation.
Matching networks should be retuned if any change is made to the PCB
(track width, length or place, or PCB thickness, or component value). Never
use, as is, a matching network designed for another PCB.
MC33596 Data Sheet, Rev. 3
NOTE
Application Schematics
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