STM32F412RGT6 datasheet(113/201 Pages) STMICROELECTRONICS

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STM32F412xE/G

Electrical characteristics

166

6.3.10

PLL characteristics

The parameters given in Table 45 and Table 46 are derived from tests performed under

temperature and VDD supply voltage conditions summarized in Table 16.

Table 45. Main PLL characteristics

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

fPLL_IN

PLL input clock(1)

-0.95(2)

12.10

MHz

fPLL_OUT

PLL multiplier output clock

100

MHz

fPLL48_OUT

48 MHz PLL multiplier output

clock

MHz

fVCO_OUT

PLL VCO output

100

432

MHz

tLOCK

PLL lock time

VCO freq = 100 MHz

200

µs

VCO freq = 432 MHz

100

300

Jitter(3)

Cycle-to-cycle jitter

System clock

100 MHz

RMS

peak

±150

Period Jitter

RMS

peak

±200

Bit Time CAN jitter

Cycle to cycle at 1 MHz

on 1000 samples.

330

IDD(PLL)(4)

PLL power consumption on VDD

VCO freq = 100 MHz

VCO freq = 432 MHz

0.15

0.45

0.40

0.75

IDDA(PLL)(4)

PLL power consumption on

VDDA

VCO freq = 100 MHz

VCO freq = 432 MHz

0.30

0.55

0.40

0.85

1. Take care of using the appropriate division factor M to obtain the specified PLL input clock values. The M factor is shared

between PLL and PLLI2S.

2. Guaranteed by design, not tested in production.

3. The use of two PLLs in parallel could degraded the Jitter up to +30%.

4. Guaranteed by characterization, not tested in production.

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