STM32F722IC datasheet(139/229 Pages) STMICROELECTRONICS

139 / 229 page

DS11853 Rev 6

139/229

STM32F722xx STM32F723xx

Electrical characteristics

201

Jitter(3)

Master I2S clock jitter

Cycle to cycle at

12.288 MHz on

48KHz period,

N=432, R=5

RMS

peak

±280

Average frequency of

12.288 MHz

N = 432, R = 5

on 1000 samples

-90

WS I2S clock jitter

Cycle to cycle at 48 KHz

on 1000 samples

-400

IDD(PLLI2S)(4)

PLLI2S power consumption on

VDD

VCO freq = 100 MHz

VCO freq = 432 MHz

0.15

0.45

0.40

0.75

IDDA(PLLI2S)(4)

PLLI2S 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 have the specified PLL input clock values.

2. Guaranteed by design.

3. Value given with main PLL running.

4. Guaranteed by characterization results.

Table 45. PLLI2S characteristics (continued)

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

Table 46. PLLISAI characteristics

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

fPLLSAI_IN

PLLSAI input clock(1)

-0.95(2)

12.10

MHz

fPLLSAIP_OUT

PLLSAI multiplier output clock

for 48 MHz

fPLLSAIQ_OUT

PLLSAI multiplier output clock

for SAI

216

fVCO_OUT

PLLSAI VCO output

100

432

tLOCK

PLLSAI lock time

VCO freq = 100 MHz

200

µs

VCO freq = 432 MHz

100

300

Jitter(3)

Master SAI clock jitter

Cycle to cycle at

12.288 MHz on

48KHz period,

N=432, R=5

RMS

peak

± 280

Average frequency of

12.288 MHz

N = 432, R = 5

on 1000 samples

-90

FS clock jitter

Cycle to cycle at 48 KHz

on 1000 samples

-400

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