NXP Semiconductors LPC5411 Series User Manual

LPC5411x All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2018. All rights reserved.
Product data sheet Rev. 2.1 — 9 May 2018 66 of 105
NXP Semiconductors
LPC5411x
32-bit ARM Cortex-M4/M0+ microcontroller
[1] Data based on characterization results, not tested in production.
[2] Excluding under- and overshoot which may occur when the PLL is not in lock.
[3] A phase difference between the inputs of the PFD (clkref and clkfb) smaller than the PFD lock criterion
means lock output is HIGH.
[4] Actual jitter dependent on amplitude and spectrum of substrate noise.
[5] Input clock coming from a crystal oscillator with less than 250 ps peak-to-peak period jitter.
11.5 FRO
The FRO is trimmed to 1 % accuracy over the entire voltage and temperature range.
[1] Tested in production.The values listed are at room temperature (25 C).
[2] Data based on characterization results, not tested in production.
11.6 RTC oscillator
See Section 13.5 for connecting the RTC oscillator to an external clock source.
[1] Parameters are valid over operating temperature range unless otherwise specified.
Table 25. Dynamic characteristics of the PLL
[1]
T
amb
=  40  C to +105  C. V
DD
= 1.62 V to 3.6 V.
Symbol Parameter Conditions Min Typ Max Unit
Reference clock input
F
in
input frequency - 32.768 kHz - 25 MHz -
Clock output
f
o
output frequency for PLL clkout output
[2]
1.2 - 150 MHz
d
o
output duty cycle for PLL clkout output 46 - 54 %
f
CCO
CCO frequency - - - 150 MHz
Lock detector output

lock(PFD)
PFD lock criterion -
[3]
124 ns
Dynamic parameters at f
out
= f
CCO
= 100 MHz; standard bandwidth settings
J
rms-interval
RMS interval jitter f
ref
= 10 MHz
[4][5]
-1530 ps
J
pp-period
peak-to-peak, period jitter f
ref
= 10 MHz
[4][5]
- 40 80 ps
Table 26. Dynamic characteristic: FRO
T
amb
=  40  C to +105  C; 1.62 V  V
DD
 3.6 V
Symbol Parameter Min
[2]
Typ
[1]
Max
[2]
Unit
f
osc(FRO)
FRO clock frequency 11.88 12 12.12 MHz
f
osc(FRO)
FRO clock frequency 47.52 48 48.48 MHz
f
osc(FRO)
FRO clock frequency 95.04 96 96.96 MHz
Table 27. Dynamic characteristic: RTC oscillator
T
amb
=  40  C to +105  C; 1.62 V  V
DD
 3.6 V
[1]
Symbol Parameter Min Typ Max Unit
f
i
input frequency - 32.768 - kHz

NXP Semiconductors LPC5411 Series Specifications

General

Brand	NXP Semiconductors
Model	LPC5411 Series
Category	Microcontrollers
Language	English