mpc5632m Freescale Semiconductor, Inc, mpc5632m Datasheet - Page 73

• Manufacturer Part Number: mpc5632m
• Description: Mpc5634m Microcontroller Data Sheet
• Manufacturer: Freescale Semiconductor, Inc

Freescale Semiconductor
1
2
3
4
5
6
7
8
9
C
All values given are initial design targets and subject to change.
Considering operation with PLL not bypassed.
All internal registers retain data at 0 Hz.
“Loss of Reference Frequency” window is the reference frequency range outside of which the PLL is in self clocked
mode.
Self clocked mode frequency is the frequency that the PLL operates at when the reference frequency falls outside
the f
f
enhanced mode.
This value is determined by the crystal manufacturer and board design.
Jitter is the average deviation from the programmed frequency measured over the specified interval at maximum
f
signal. Noise injected into the PLL circuitry via V
increase the C
Proper PC board layout procedures must be followed to achieve specifications.
V
V
VCO
SYS
f
JITTER
f
IHEXT
ILEXT
MOD
f
f
t
t
LCK
f
t
—
CS
DS
Symbol
cst
lpll
UL
dc
. Measurements are made with the device powered by filtered supplies and clocked by a stable external clock
LOR
self clock range is 20-150 MHz. f
window.
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
JITTER
CLKOUT
period
jitter
Crystal start-up time
EXTAL input high voltage
EXTAL input low voltage
XTAL load capacitance
PLL lock time
Duty cycle of reference
Frequency LOCK range
Frequency un-LOCK range
Modulation Depth
Modulation frequency
(V
DDPLL
percentage for a given interval.
7,8,9,10
= 3.0 V to 3.6 V, V
Table 20. PLLMRFM Electrical Specifications
Preliminary—Subject to Change Without Notice
Parameter
MPC5634M Microcontroller Data Sheet, Rev. 3
11, 16
Peak-to-peak (clock
edge to clock edge)
Long-term jitter (avg.
over 2 ms interval)
SCM
11, 12
17
11
represents f
SS
= V
DDPLL
SSPLL
SYS
and V
= 0 V, T
f
Crystal Mode
0.8≤Vxtal≤1.5V
External
Reference
Crystal Mode
0.8≤Vxtal≤1.5V
External
Reference
Center spread
Down Spread
SYS
after PLL output divider (ERFD) of 2 through 16 in
SSPLL
Conditions
maximum
A
—
—
—
—
—
—
—
and variation in crystal oscillator frequency
= T
13, 15
13, 15
L
13
13
to T
14
14
,
,
H
)
Vxtal +
2 + 0.4
V
(continued)
±0.25
min
-0.5
RC33
0.4
-18
40
—
—
—
—
1
-5
-6
-6
0
5
/
Value
V
Vxtal -
V
RC33
max
- 0.4
±4.0
-8.0
200
100
Electrical Characteristics
RC33
0.4
10
30
60
18
—
5
6
6
/2
% f
% f
% f
%f
Unit
CLKOUT
kHz
ms
pF
ns
μs
%
V
V
sys
sys
sys
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