FS32R274VBK2MMM datasheet(28/78 Pages) NXP

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6.1.3 16 MHz Internal RC Oscillator (IRCOSC) electrical specifications

Table 22. Internal RC Oscillator electrical specifications

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

FTarget

IRC target frequency

—

MHz

Funtrimmed

IRC frequency (untrimmed)

—

9.6

—

MHz

δFvar

IRC trimmed frequency variation 1

—

-8

—

Tstartup

Startup time

—

µs

1. The typical user trim step size (

δfTRIM) is 0.3% of current frequency for application of positive trim and 0.26% of current

frequency for application of negative trim, based on characterization results.

6.1.4 320 MHz AFE PLL electrical characteristics

Table 23. 320 MHz AFE PLL parameters

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

PLLfout

Output Frequency

—

320

—

MHz

PLLfin

Input Frequency

—

MHz

tcal

Calibration Time 1

LW64 = 1

LW64 = 0

—

150

500

µs

tlock

Lock Time

after calibration

—

µs

tjitcck

Cycle to cycle jitter (peak – peak)

—

Output duty cycle

—

1. The LW64 bit sets the wait time before the PLL frequency is measured after each calibration step to allow for stabilization.

If LW64 is '0', wait time of 256 reference clock cycles is used. If LW64 is'1', wait time of 64 reference clock cycles is used.

6.1.5 LFAST PLL electrical characteristics

The specifications in the following table apply to the interprocessor bus LFAST interface.

Table 24. LFAST PLL electrical characteristics

Symbol

Parameter

Condition

Min

Typ

Max

Unit

fRF_REF

PLL reference clock frequency

—

MHz

ERRREF

PLL reference clock frequency error

—

–1

—

DCREF

PLL reference clock duty cycle

—

fVCO

PLL VCO frequency

—

6401

—

MHz

tLOCK

PLL phase lock2

—

μs

ΔPERREF

Input reference clock jitter (peak to peak) Single period, fRF_REF =

10 MHz

—

300

Table continues on the next page...

Clocks and PLL Specifications

S32R274/S32R264 Series Data Sheet, Rev. 6, 06/2021

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