參數(shù)資料
型號: SAF-XC161CJ-16F40F
廠商: INFINEON TECHNOLOGIES AG
英文描述: 16-Bit Single-Chip Microcontroller
中文描述: 16位單片機(jī)
文件頁數(shù): 65/79頁
文件大?。?/td> 2440K
代理商: SAF-XC161CJ-16F40F
XC161
Derivatives
Timing Parameters
Data Sheet
61
V2.2, 2003-06
For a period of
N
×
TCM the accumulated PLL jitter is defined by the deviation D
N
:
D
N
[ns] =
±
(1.5 + 6.32
×
N
/
f
MC
);
f
MC
in [MHz],
N
= number of consecutive TCMs.
So, for a period of 3 TCMs @ 20 MHz and K = 12: D
3
=
±
(1.5 + 6.32
×
3
/
20) = 2.448 ns.
This formula is applicable for K
×
N
< 95. For longer periods the K
×
N
=95 value can be
used. This steady value can be approximated by: D
N
max
[ns] =
±
(1.5 + 600
/
(K
×
f
MC
)).
Figure 15
Approximated Accumulated PLL Jitter
Note: The bold lines indicate the minimum accumulated jitter which can be achieved by
selecting the maximum possible output prescaler factor K.
Different frequency bands can be selected for the VCO, so the operation of the PLL can
be adjusted to a wide range of input and output frequencies:
VCO Bands for PLL Operation
1)
PLLCON.PLLVB VCO Frequency Range
00
100
150 MHz
01
150
200 MHz
10
200
250 MHz
11
Reserved
Table 15
1)
Values guaranteed by design characterisation.
Base Frequency Range
20
80 MHz
40
130 MHz
60
180 MHz
mcb04413_xc.vsd
Acc. jitter
D
N
ns
±8
±6
±4
±2
±1
0
5
10
20
25
N
1 MH
K=5
20MHz
40 MHz
±7
±5
±3
15
K=6
K=12
K=15
K=8
K=10
1
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SAFXC161CJ16F40FACT 制造商:Infineon Technologies AG 功能描述:MCU 16-Bit XC166 CISC/DSP/RISC 128KB Flash 2.5V/5V 144-Pin TQFP T/R
SAFXC161CJ16F40FBB 制造商:Infineon Technologies AG 功能描述:MCU 16-Bit XC166 CISC/DSP/RISC 128KB Flash 2.5V/5V 144-Pin TQFP
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SAFXC161CJ16F40FBB TR 制造商:Infineon Technologies AG 功能描述: