参数资料
型号: MC9S12H256CFVR2
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 微控制器/微处理器
英文描述: 16-BIT, FLASH, 16 MHz, MICROCONTROLLER, PQFP144
封装: LQFP-144
文件页数: 16/130页
文件大小: 527K
代理商: MC9S12H256CFVR2
MC9S12H256 Device User Guide — V01.20
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
fSCM
1
5.5
MHz
2
D VCO locking range
fVCO
8
32
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 = 16MHz equivalent fVCO = 32MHz: REFDV = #$03, SYNR = #$0F, 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
P Fitting parameter VCO loop gain3
3. K1 is measured with VXFC = 1.4V and VXFC = 1.7V @ VDD5 = 5.25V
K1
–120
-224
MHz/V
11
D Fitting parameter VCO loop frequency
f1
75
MHz
12
P Charge pump current acquisition mode
| ich |
20
38.5
60
A
13
P Charge pump current tracking mode
| ich |
2
3.5
6
A
14
C Jitter t parameter 12
j1
1.1
%
15
C Jitter t parameter 22
j2
0.13
%
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