MPC5604B datasheet(69/106 Pages) FREESCALE

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Electrical characteristics

MPC5604B/C Microcontroller Data Sheet, Rev. 8

Freescale Semiconductor

4.15

FMPLL electrical characteristics

The device provides a frequency-modulated phase-locked loop (FMPLL) module to generate a fast system clock from the main

oscillator driver.

Table 35. Slow external crystal oscillator (32 kHz) electrical characteristics

Symbol

Parameter

Conditions1

1 V

DD = 3.3 V ± 10% / 5.0 V ± 10%, TA = 40 to 125 °C, unless otherwise specified

Value

Unit

Min

Typ

Max

fSXOSC

SR — Slow external crystal oscillator

frequency

—

32.768

kHz

VSXOSC

CC T Oscillation amplitude

—

2.1

—

ISXOSCBIAS CC T Oscillation bias current

—

2.5

—

µA

ISXOSC

CC T Slow external crystal oscillator

consumption

——

—

µA

TSXOSCSU CC T Slow external crystal oscillator

start-up time

——

—

2 Start-up time has been measured with EPSON TOYOCOM MC306 crystal. Variation may be seen with other crystal

Table 36. FMPLL electrical characteristics

Symbol

Parameter

Conditions1

1 V

DD = 3.3 V ± 10% / 5.0 V ± 10%, TA = 40 to 125 °C, unless otherwise specified.

Value

Unit

Min

Typ

Max

fPLLIN

SR — FMPLL reference clock2

2 PLLIN clock retrieved directly from FXOSC clock. Input characteristics are granted when oscillator is used in

functional mode. When bypass mode is used, oscillator input clock should verify fPLLIN and PLLIN.

—4

—

MHz



PLLIN

SR — FMPLL reference clock duty

cycle2

—40

—

fPLLOUT CC D FMPLL output clock frequency

—

MHz

fVCO

3 Frequency modulation is considered ± 4%

CC P VCO frequency without

frequency modulation

—

256

—

512

MHz

C VCO frequency with frequency

modulation

—

245

—

533

fCPU

SR — System clock frequency

—

MHz

fFREE

CC P Free-running frequency

—

150

MHz

tLOCK

CC P FMPLL lock time

Stable oscillator (fPLLIN = 16 MHz)

100

µs

t

LTJIT

CC — FMPLL long term jitter

fPLLIN = 16 MHz (resonator),

fPLLCLK @ 64 MHz, 4000 cycles

—

IPLL

CC C FMPLL consumption

TA = 25 °C

—

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