ST10F271 datasheet(148/173 Pages) STMICROELECTRONICS

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Electrical characteristics

ST10F271

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Not 100% tested, guaranteed by design characterization.

24.8.11

Main oscillator specifications

VDD = 5V ± 10%, VSS = 0V, TA = –40 to +125°C

Not 100% tested, guaranteed by design characterization.

Figure 47.

Crystal oscillator and resonator connection diagram

Table 70.

PLL characteristics (VDD = 5V ± 10%, VSS = 0V, TA = –40 to +125°C)

Symbol

Parameter

Conditions

Value

Unit

min.

max.

TPSUP

PLL Start-up time 1)

Stable VDD and reference clock

–

300

µs

TLOCK

PLL Lock-in time

Stable VDD and reference clock,

starting from free-running mode

–

250

µs

TJIT

Single Period Jitter 1)

(cycle to cycle = 2 TCL)

6 sigma time period variation

(peak to peak)

–500

+500

Ffree

PLL free running frequency

Multiplication Factors: 3, 4

Multiplication Factors: 5, 8, 10, 16

250

500

2000

4000

kHz

Table 71.

Main oscillator characteristics

Symbol

Parameter

Conditions

Value

Unit

min.

typ.

max.

Oscillator

Transconductance

1.4

2.6

4.2

mA/V

VOSC

Oscillation Amplitude 1)

Peak to Peak

–

1.5

–

VAV

Oscillation Voltage level 1)

Sine wave middle

–

0.8

–

tSTUP

Oscillator Start-up Time 1)

Stable VDD - Crystal

–

Stable VDD - Resonator

–

12ms

crystal

Resonator

ST10F271

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