參數(shù)資料
型號(hào)： IBM25PPC750GXEAB1033T
元件分類： 微控制器/微處理器
英文描述： 32-BIT, 733 MHz, RISC PROCESSOR, CBGA292
封裝： 21 X 21 MM, 1 MM PITCH, LEAD FREE, CERAMIC, BGA-292
文件頁(yè)數(shù)： 48/74頁(yè)
文件大?。?/td> 1054K
代理商： IBM25PPC750GXEAB1033T
Datasheet
IBM PowerPC 750GX RISC Microprocessor
DD1.X
System Design Information
Page 52 of 73
750GX_ds_body.fm SA14-2765-02
September 2, 2005
5.4 Decoupling Recommendations
Capacitor decoupling is required for the 750GX. Decoupling capacitors act to reduce high-frequency chip
switching noise and provide localized bulk charge storage to reduce major power-surge effects. Guidelines
for high-frequency noise decoupling will be provided in a separate application note. Bulk decoupling requires
a more complete understanding of the system and system power architecture, which is beyond the scope of
this document.
Figure 5-3. Dual PLL Power Supply Filter Circuits (Recommended if Dual-PLL is Enabled)1
Discrete Resistor
2
Ferrite Bead
AVDD
2
C2
C1
AGND Pin
A1VDD Pin
Item
Description/Value
Resistor
2
C1
0.1
F Ceramic
C2
10.0
F Ceramic
Ferrite Bead
30
(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 46.
2. Connected to ground without a filter.
Discrete Resistor
2
Ferrite Bead
AVDD
2
C2
C1
AGND Pin
A2VDD Pin
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