参数资料
型号: MC9SDG256BMFUR2
厂商: MOTOROLA INC
元件分类: 微控制器/微处理器
英文描述: 16-BIT, FLASH, 25 MHz, MICROCONTROLLER, PQFP80
封装: 14 X 14 MM, 2.20 MM HEIGHT, 0.65 MM PITCH, PLASTIC, QFP-80
文件页数: 16/155页
文件大小: 2684K
代理商: MC9SDG256BMFUR2
MC9S12DP256B Device User Guide — V02.14
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-16 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
fSCM
1
5.5
MHz
2
D VCO locking range
fVCO
8
50
MHz
3D
Lock Detector transition from Acquisition to Tracking
mode
|
trk|
34
%1
NOTES:
1. % deviation from target frequency
4
D Lock Detection
|
Lock|
0
1.5
%1
5
D Un-Lock Detection
|
unl|
0.5
2.5
%1
6D
Lock Detector transition from Tracking to Acquisition
mode
|
unt|
68
%1
7C PLLON Total Stabilization delay (Auto Mode) 2
2. fREF = 4MHz, fBUS = 25MHz equivalent fVCO = 50MHz: REFDV = #$03, SYNR = #$018, Cs = 4.7nF, Cp = 470pF, Rs =
10K
.
tstab
0.5
ms
8D PLLON Acquisition mode stabilization delay 2
tacq
0.3
ms
9D PLLON Tracking mode stabilization delay 2
tal
0.2
ms
10
D Fitting parameter VCO loop gain
K1
-120
MHz/V
11
D Fitting parameter VCO loop frequency
f1
75
MHz
12
D Charge pump current acquisition mode
| ich |
38.5
A
13
D Charge pump current tracking mode
| ich |
3.5
A
14
C Jitter t parameter 12
j1
1.1
%
15
C Jitter t parameter 22
j2
0.13
%
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