EFM32GG11 datasheet(47/261 Pages) SILABS

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4.1.10.6 Universal High-Frequency RC Oscillator (USHFRCO)

Table 4.17. Universal High-Frequency RC Oscillator (USHFRCO)

Parameter

Symbol

Test Condition

Min

Typ

Max

Unit

Frequency accuracy

fUSHFRCO_ACC

At production calibrated frequen-

cies, across supply voltage and

temperature

-2.5

—

2.5

USB clock recovery enabled, Ac-

tive connection as device, FINE-

TUNINGEN1 = 1

-0.25

—

0.25

Start-up time

tUSHFRCO

—

300

—

Current consumption on all

supplies

IUSHFRCO

fUSHFRCO = 48 MHz, FINETUNIN-

GEN1 = 1

—

340

400

µA

fUSHFRCO = 50 MHz, FINETUNIN-

GEN1 = 0

—

320

380

µA

fUSHFRCO = 48 MHz, FINETUNIN-

GEN1 = 0

—

300

370

µA

fUSHFRCO = 32 MHz, FINETUNIN-

GEN1 = 0

—

200

240

µA

fUSHFRCO = 16 MHz, FINETUNIN-

GEN1 = 0

—

120

160

µA

Period jitter

PJUSHFRCO

—

0.2

—

% RMS

Note:

1. In the CMU_USHFRCOCTRL register.

4.1.10.7 Ultra-low Frequency RC Oscillator (ULFRCO)

Table 4.18. Ultra-low Frequency RC Oscillator (ULFRCO)

Parameter

Symbol

Test Condition

Min

Typ

Max

Unit

Oscillation frequency

fULFRCO

0.88

1.12

kHz

EFM32GG11 Family Data Sheet

Electrical Specifications

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