Analog Devices ADRV9002 User Manual

UG-1828 Preliminary Technical Data
Rev. PrC | Page 256 of 338
Figure 244. Layout Example of Power Supply Connections Routed with Ground Shielding (Layer 3)
Figure 245 shows an example of how the ferrite beads, reservoir capacitors and decoupling capacitors should be placed. Recommendation
is to connect a ferrite bead between a power plane and ADRV9001 at a distance away from ADRV9001. The ferrite bead should supply a
trace with a reservoir capacitor connected to it. That trace should then be shielded with ground and provide power to ADRV9001 Power
pin. A 1 µF capacitor should be placed near the power supply pin with the ground side of the bypass capacitor placed so that ground
currents flow away from other power pins and their bypass capacitors.
Figure 245. Placement Example of Ferrite Beads, Reservoir and Bypass Capacitors on ADRV9001 Customer Card
(Layers: TOP, 3-Power and BOTTOM)
There are two possible power supply architectures for ADRV9001 transceivers, as follows:
• High performance, low risk, four power domains
• 1.8 V digital
• 1.8 V analog
• 1.3 V analog
• 1.0 V digital
SEPARATE TRACE
SURROUNDED BY GROUND
FERRITE
BEAD
100µF
RESER
VOIR
CAPACITOR
1µF BYPASS
CAPACITOR
AGND
C1043
1µF
VRX2LO_1P3
C1042
100µF
R1011
0Ω
VDDA_1P3
VDDA_1P0
R1012
DNI
2 1
1
E1024
120Ω
TP1024
RED
VIA TO
POWER
DOMAIN
BALL

Analog Devices ADRV9002 Specifications

General

Brand	Analog Devices
Model	ADRV9002
Category	Transceiver
Language	English