MC9S12A128 Datasheet, PDF (79/92 Pages) Motorola, Inc – Microcontroller unit (MCU)

MC9S12A128 Device Guide — V01.01
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
f_SCM
1
—
5.5
MHz
2 D VCO locking range
f_VCO
8
—
50
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 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
| i_ch |
—
38.5
—
µA
13 D Charge pump current tracking mode
| i_ch |
—
3.5
—
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 = 25MHz equivalent f_VCO = 50MHz: REFDV = #$03, SYNR = #$018, Cs = 4.7nF, Cp = 470pF,
Rs = 10KΩ.
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