參數(shù)資料
型號(hào)： TMPR4955
廠商： Toshiba Corporation
英文描述： 64-bit RISC (Reduced Instruction Set Computer) microprocessor(64位精簡(jiǎn)指令集系統(tǒng)計(jì)算機(jī)微處理器)
中文描述： 64位RISC（精簡(jiǎn)指令集計(jì)算機(jī)）微處理器（64位精簡(jiǎn)指令集系統(tǒng)計(jì)算機(jī)微處理器）
文件頁(yè)數(shù)： 60/60頁(yè)
文件大小： 244K
代理商： TMPR4955
TOSHIBA
TENTATIVE
TMPR4955/56
20-Oct.-1999
60
Appendix A. Passive Components
The Phase Locked Loop circuit requires several components for proper operation, which are connected to
PLLCAP,VccPLL, and VssPLL, as illustrated in Figure C-1.
In addition, the capacitors for PLLCAP ( Cp%1) can be connected to VccPLL.
Values (TENTATIVE) :
R = 5 ohm
C1 = 1 nF
C2 = 82 nF
C3 = 10
μ
F
Cp%1 = 900 pF
VccInt = 2.5v
±
5%
The inductors (L) can be used as alternatives to the (R) to filter the power supply.
It is essential to isolate the analog power and ground for the PLL circuit (VccPLL/VssPLL) from the
regular power ground (VccIO/VccINT/Vss).
L
C3
L
Cp%1
R
C1
R
VSS
VssPLL
PLLCAP
VccPLL
VccInt
TMPR4955/56F
C1,C2,Cp%1,R and L are
Board Which should be
placed as close as possible
to the processor.
C2
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