Intel 320 LE80535NC013512 数据表
产品代码
LE80535NC013512
Mobile Intel
®
Celeron
®
Processor (0.18µ) in BGA2 and Micro-PGA2 Packages
Datasheet
283654-003
78
Figure 25. PLL Filter Specifications
0 dB
-28 dB
-34 dB
0.2 dB
forbidden
zone
x dB
forbidden
zone
1 MHz
66 MHz
fcore
fpeak
1 Hz
DC
passband
high frequency
band
x = 20.log[(Vcct-60 mV)/ Vcct]
NOTES:
1. Diagram is not to scale
2. No specification for frequencies beyond fcore.
3. Fpeak, if existent, should be less than 0.05 MHz.
A.3
Recommendation for Mobile Systems
The following LC components are recommended. The tables will be updated as other suitable
components and specifications are identified.
components and specifications are identified.
Table 41. 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
Ω
(1
Ω
max)
0
Ω
L2 Murata
LQG21N4R7K10
4.7
µ
H 10% 47 MHz 30 mA 0.7
Ω
(+/-
50%)
0
Ω
L3 Murata
LQG21C4R7N00
4.7
µ
H 30% 35 MHz 30 mA 0.3
Ω
max
0.2
Ω
(assumed)
NOTE:
Minimum damping resistance is calculated from 0.35
Ω
– DCR
min
. From vendor provided data, L1 and
L2 DCR
min
is 0.4
Ω
and 0.5
Ω
respectively, qualifying them for zero required trace resistance. DCR
min
for L3 is not known and is assumed to be 0.15
Ω
. There may be other vendors who might provide
parts of equivalent characteristics and the OEMs should consider doing their own testing for selecting
their own vendors.
their own vendors.