LPC5410X datasheet(61/95 Pages) NXP

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LPC5410x

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Product data sheet

Rev. 2.11 — 19 September 2019

61 of 95

NXP Semiconductors

LPC5410x

32-bit ARM Cortex-M4/M0+ microcontroller

[1]

Data based on characterization results, not tested in production.

[2]

Output jitter depends on the frequency of input jitter and is equal to or less than the input jitter.

[3]

Excluding under- and overshoot which may occur when the PLL is not in lock.

[4]

A phase difference between the inputs of the PFD (clkref and clkfb) smaller than the PFD lock criterion

means lock output is HIGH.

[5]

Actual jitter dependent on amplitude and spectrum of substrate noise.

[6]

Input clock coming from a crystal oscillator with less than 250 ps peak-to-peak period jitter.

11.6 IRC

[1]

Typical ratings are not guaranteed. The value listed is at room temperature (25

C).

[2]

Tested in production.

[3]

Guaranteed by characterization, not tested in production.

11.7 RTC oscillator

See Section 13.5 for connecting the RTC oscillator to a crystal or an external clock

source.

[1]

Typical ratings are not guaranteed. The values listed are at room temperature (25

C), nominal supply

voltages.

Table 22.

Dynamic characteristics of the PLL[1]

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

Reference clock input

Fin

input frequency

32.768 kHz

25 MHz

Clock output

output frequency

for PLL clkout output

[3]

1.2

150

MHz

output duty cycle

for PLL clkout output

fCCO

CCO frequency

150

MHz

Lock detector output

lock(PFD)

PFD lock criterion

[4]

Dynamic parameters at fout = fCCO = 100 MHz; standard bandwidth settings

Jrms-interval

RMS interval jitter

fref = 10 MHz

[5][6]

Jpp-period

peak-to-peak, period jitter

fref = 10 MHz

[5][6]

Table 23.

Dynamic characteristic: IRC oscillator

1.62 V

 VDD  3.6 V.

Symbol

Parameter

Conditions

Min

Typ[1]

Max

Unit

fosc(RC)

internal RC oscillator frequency

Tamb = 25 C

[2]

1 %

12 +1 %

MHz

40 C  Tamb  +105 C

[3]

3.5 %

12 +3 %

MHz

C  Tamb  +85 C

[3]

2 %

12 +2.5 % MHz

Table 24.

Dynamic characteristic: RTC oscillator

1.62 V

 VDD  3.6 V[1]

Symbol

Parameter

Conditions

Min

Typ[1]

Max

Unit

input frequency

32.768

kHz

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