CMX983 Datasheet, PDF (14/93 Pages) CML Microcircuits – Programmable Channel Filter

Analogue Front End (AFE) for Digital Radio
CMX983
Figure 4 Power Supply Decoupling
To achieve good noise performance, V_DD and V_BIAS decoupling and protection of the receive path from
extraneous in-band signals are very important. It is recommended that the printed circuit board is laid out with
ground planes in the CMX983 area to provide a low impedance connection between the VSS pins and the
V_DD and V_BIAS decoupling capacitors. 100nH inductors or 10Ω resistors, in combination with 10nF capacitors,
should be used to decouple the power supplies, as shown in Figure 4.
 2015 CML Microsystems Plc
14
D/983/6