參數(shù)資料
型號: RH80530NZ004256
英文描述: MICROPROCESSOR|32-BIT|CMOS|PGA|478PIN|CERAMIC
中文描述: 微處理器| 32位|的CMOS |美巡賽| 478PIN |陶瓷
文件頁數(shù): 88/89頁
文件大小: 1672K
代理商: RH80530NZ004256
Mobile Intel
Pentium
III Processor-M Datasheet
88
Datasheet
298340-002
Figure 29. PLL Filter Specifications
0 dB
x dB
-28 dB
-34 dB
0.2 dB
forbidden
zone
forbidden
zone
1 MHz
66 MHz
fcore
fpeak
1 Hz
DC
passband
high frequency
band
x = 20.log[(Vcct-60 mV)/Vcct]
NOTES
:
Diagram is not to scale
No specification for frequencies beyond fcore.
Fpeak, if existent, should be less than 0.05 MHz.
A3.
Recommendation for Mobile Systems
The following LC components are recommended. The tables will be updated as other suitable
components and specifications are identified.
Table 49. PLL Filter Inductor Recommendations
Inductor
Part Number
Value
Tol
SRF
Rated I
DCR
Min Damping R Needed
L1
TDK MLF2012A4R7KT
4.7
μ
H 10% 35 MHz 30 mA
0.56
(1
max)
0
L2
Murata LQG21N4R7K10 4.7
μ
H 10% 47 MHz 30 mA
Murata LQG21C4R7N00 4.7
μ
H 30% 35 MHz 30 mA
Minimum damping resistance is calculated from 0.35
– DCR
min
. From vendor provided data, L1 and L2
DCR
min
is 0.4
and 0.5
respectively, qualifying them for zero required trace resistance. DCR
min
for L3 is
not known and is assumed to be 0.15
. Products with equivalent specifications may also be used.
0.7
(+/-50%)
0
L3
0.3
max
0.2
(assumed)
NOTE:
Table 50. PLL Filter Capacitor Recommendations
Capacitor
Part Number
Value
Tolerance
ESL
ESR
C1
Kemet T495D336M016AS
33
μ
F
20%
2.5 nH
0.225
C2
AVX TPSD336M020S0200
33
μ
F
20%
Unknown
0.2
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