參數(shù)資料
型號(hào): 9S12H256BDGV1
英文描述: 9S12H256B Device Guide
中文描述: 9S12H256B設(shè)備指南
文件頁數(shù): 112/130頁
文件大小: 2171K
代理商: 9S12H256BDGV1
MC9S12H256 Device User Guide — V01.18
112
This is very important to notice with respect to timers, serial modules where a pre-scaler will eliminate the
effect of the jitter to a large extent.
Table A-15 PLL Characteristics
Conditions are shown in
Table A-4
unless otherwise noted
Num C
Rating
Symbol
Min
Typ
Max
Unit
1
P Self Clock Mode frequency
f
SCM
1
5.5
MHz
2
D VCO locking range
f
VCO
8
32
MHz
3
D
Lock Detector transition from Acquisition to Tracking
mode
|
trk
|
3
4
%
1
NOTES
:
1. % deviation from target frequency
2. f
REF
= 4MHz, f
BUS
= 16MHz equivalent f
VCO
= 32MHz: REFDV = #$03, SYNR = #$0F, Cs = 4.7nF, Cp = 470pF, Rs = 10K
.
3. K
1
is measured with V
XFC
= 1.4V and V
XFC
= 1.7V @ VDD5 = 5.25V
4
D Lock Detection
|
Lock
|
0
1.5
%
1
5
D Un-Lock Detection
|
unl
|
0.5
2.5
%
1
6
D
Lock Detector transition from Tracking to Acquisition
mode
|
unt
|
6
8
%
1
7
C PLLON Total Stabilization delay (Auto Mode)
2
t
stab
0.5
ms
8
D PLLON Acquisition mode stabilization delay
2
t
acq
0.3
ms
9
D PLLON Tracking mode stabilization delay
2
t
al
0.2
ms
10
P Fitting parameter VCO loop gain
3
K
1
–120
-224
MHz/V
11
D Fitting parameter VCO loop frequency
f
1
75
MHz
12
P Charge pump current acquisition mode
| i
ch
|
20
38.5
60
μ
A
13
P Charge pump current tracking mode
| i
ch
|
2
3.5
6
μ
A
14
C Jitter fit parameter 1
2
j
1
1.1
%
15
C Jitter fit parameter 2
2
j
2
0.13
%
F
For More Information On This Product,
Go to: www.freescale.com
n
.
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