MC9S12H256 Datasheet, PDF (112/130 Pages) Motorola, Inc – Device User Guide

MC9S12H256 Device User Gui^Fde^r—^eeV^s01^c.1^a8 ^{le Semiconductor, Inc.}
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
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
K₁
–120
-224 MHz/V
11 D Fitting parameter VCO loop frequency
f₁
75
MHz
12 P Charge pump current acquisition mode
| i_ch |
20
38.5
60
µA
13 P Charge pump current tracking mode
| i_ch |
2
3.5
6
µA
14 C _{Jitter fit parameter 1}²
j₁
1.1
%
15 C _{Jitter fit parameter 2}²
j₂
0.13
%
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 = 10KΩ.
3. K₁ is measured with V_XFC = 1.4V and V_XFC = 1.7V @ VDD5 = 5.25V
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