DD 2.X
PowerPC 750FX RISC Microprocessor
Preliminary
Figure 5-3. Dual PLL Power Supply Filter Circuits
Dual PLL (AVDD) Power Supply Filter Circuits1
(Recommended configuration if Dual PLL feature is enabled.)
Discrete Resistor
Ferrite Bead
2Ω
A1VDD Pin
AV
(V
DD
)
C1
DD
C2
AGND Pin2
Discrete Resistor
Ferrite Bead
2Ω
A2VDD Pin
AV
DD
(V
)
DD
C1
C2
AGND Pin2
Item
Description/Value
Resistor
C1
2Ω
0.1 µF Ceramic
10.0 µF Ceramic
C2
Ferrite Bead
30Ω (typical) - Murata BLM21P300S or similar
Notes:
1. The dual PLL power supply circuits shown in this figure are recommended for a design that uses the Dual PLL feature.
For more information about the Dual PLL feature, see Section 5.2 Low Voltage Operation at Lower Frequency on
page 40.
2. Connected to ground without a filter.
5. System Design Information
Page 38 of 63
Body_750FX_DS_DD2.X.fm.2.0
June 9, 2003
IBM [ IBM ]
