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參數(shù)資料
| 型號： | PPC440GRx-SpAfffTs |
| 廠商： | Applied Micro Circuits Corp. |
| 英文描述： | PowerPC 440GRx Embedded Processor |
| 中文描述： | 嵌入式處理器的PowerPC 440GRx |
| 文件頁數(shù)： | 67/88頁 |
| 文件大?。?/td> | 603K |
| 代理商： | PPC440GRX-SPAFFFTS |
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440GRx – PPC440GRx Embedded Processor
Revision 1.08 – October 15, 2007
Preliminary Data Sheet
AMCC Proprietary
67
Power Sequencing
Startup sequencing of the power supply voltages is not required. However, a power-down cycle must complete
(OV
DD
and V
DD
are below +0.4V) before a new power-up cycle is started.
Analog Voltage Filter
The analog voltages (AVdd and EAVdd) used for the on-chip PLLs can be derived from the logic voltage, but must be filtered
before entering the PPC440GRx. A Separate filter, as shown below, is recommended for each voltage.
The filter should keep the analog voltage to analog ground compression/expansion due to noise less than +/-
50 mV.
Keep all wire lengths as short as possible.
Analog grounds must be brought out and connected to the digital ground plane at the filter capacitor.
The impedance of the ferrite bead should be much greater than that of the capacitor at frequencies where noise is
expected.
Table 14. Typical DC Power Supply Requirements Using DDR2 Memory
Frequency (MHz)
+1.5V Supply
(V
DD
+AV
DD
+EAV
DD
)
+1.8V Supply
(SOV
DD
)
+2.5V Supply
(EOV
DD
)
+3.3V Supply
(OV
DD
+UAV
DD
)
Total
Unit
Notes
400
1.35
0.9
0.2
0.7
3.15
W
1
533
1.45
0.9
0.2
0.7
3.25
W
1
667
1.9
0.9
0.2
0.7
3.7
W
1
Notes:
1. Typical power is estimated and is based on a nominal voltage of V
DD
= +1.5V, T
C
= 85
°
C, while running Linux and a test application that
exercises each functiion with representative traffic.
Table 15. Typical DC Power Supply Requirements Using DDR1 Memory
Frequency (MHz)
+1.5V Supply
(V
DD
+AV
DD
+EAV
DD
)
+1.8V Supply
(SOV
DD
)
+2.5V Supply
(SOV
DD
+ EOV
DD
)
+3.3V Supply
(OV
DD
+UAV
DD
)
Total
Unit
Notes
400
1.35
na
1.3
0.7
3.35
W
1
533
1.45
na
1.3
0.7
3.45
W
1
667
1.9
na
1.3
0.7
3.9
W
1
Notes:
1. Typical power is estimated and is based on a nominal voltage of V
DD
= +1.5V, T
C
= 85
°
C, while running Linux and a test application that
exercises each functiion with representative traffic.
V
DD
C
AV
DD,
SAV
DD
L
L – SMT ferrite bead chip, Murata BLM21PG600SN1
C –
0.1
μ
F ceramic
AGND, SAGND
GND
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| PPC440GX-3RF800CZ | Power PC 440GX Embedded Processor |
| PPC440GX-3CC533S | Power PC 440GX Embedded Processor |
| PPC440GX-3CC667S | Power PC 440GX Embedded Processor |
| PPC440GX-3CF400C | Power PC 440GX Embedded Processor |
| PPC440GX-3CF533C | Power PC 440GX Embedded Processor |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PPC440GRX-STA400E | 制造商:AppliedMicro 功能描述:32 BIT POWERPC CORE, UP TO 667 MHZ, 2 10/100/1000 ETHERNET, - Trays |
| PPC440GRX-STA533E | 制造商:AppliedMicro 功能描述:32 BIT POWERPC CORE, UP TO 667 MHZ, 2 10/100/1000 ETHERNET, - Trays |
| PPC440GRX-STA533EZ | 制造商:AppliedMicro 功能描述:32 BIT POWERPC CORE, UP TO 667 MHZ, 2 10/100/1000 ETHERNET, - Tape and Reel |
| PPC440GRX-STA667E | 制造商:AppliedMicro 功能描述:32 BIT POWERPC CORE, UP TO 667 MHZ, 2 10/100/1000 ETHERNET, - Trays |
| PPC440GRX-SUA400E | 制造商:AppliedMicro 功能描述:32 BIT POWERPC CORE, UP TO 667 MHZ, 2 10/100/1000 ETHERNET, - Trays |
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