UG-1828 Preliminary Technical Data
Rev. PrB | Page 228 of 277
This approach uses the ADRV9001 internal LDOs to generate 1.0 V for all internal blocks. Figure 223 outline power supply routing
recommendations for this architecture.
TRACE T
O 1.8V DIG
TRACE WITH FB TO 1.3V
TRACE WITH FB T
O 1.3V
CONNECT 2 PINS
TOGETHER
WITH 4.7µF CAPACITOR
CONNECT 2 PINS TOGETHER
WITH 4.7µF CAPACITOR
TRACE WITH FB TO 1.3V
TRACE WITH FB T
O 1.3V
TRACE WITH FB TO 1.3V
TRACE WITH FB TO 1.3V
TRACE WITH FB TO 1.3V
TRACE WITH FB TO 1.8V Tx2
TRACE WITH FB
TO 1.8V ANLG
4.7µF CAPACI
TOR
4.7µF CAPACITOR
4.7µF CAPACITOR
TRACE WITH FB TO 1.8V Tx1
TRACE TO 1.0V DIG.
HIGH CURRENT
TRACE WITH FB
TO 1.3V
TRACE WITH FB
T
O 1.3V
TRACE WITH FB TO 1.3V
TRACE WITH FB
T
O 1.3V
TRACE WITH FB
TO 1.3V
TRACE WITH FB
TO 1.3V
TRACE WITH FB TO 1.3V
TRACE WITH FB TO 1.3V
TRACE WITH FB TO 1.8V ANLG
4.7µF CAPACITOR
4.7µF CAPACITOR
4.7µF CAPACITOR
24159-195
Figure 224. ADRV9001 Power Supply Domains with Connection Guidelines, All Internal LDOs in Use
• Power supply optimization, higher risk (use noise sensitive 1.0V analog), 5 power domains:
• 1.8 V digital,
• 1.8 V analog,
• 1.3 V analog,
• 1.0 V digital,
• 1.0 V analog,
This approach that uses some of ADRV9001 internal LDOs to generate 1.0 V for internal blocks. For remining blocks it expect the 1.0 V
to be delivered from external power source. Figure 224 outline power supply routing recommendations for this architecture.
• For domains shown in Figure 224 that should be powered through a ferrite bead (FB), care should be taken to place the ferrite
beads near the ADRV9001 supply pins. The ferrite beads should also be spaced to ensure their electric fields do not influence
each other. 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 input power pin.
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