DSPIC33FJ12MC02ESS datasheet(242/284 Pages) MICROCHIP

242 / 284 page

dsPIC33FJ12MC201/202

DS70265B-page 240

Preliminary

TABLE 23-17: PLL CLOCK TIMING SPECIFICATIONS (VDD = 3.0V TO 3.6V)

AC CHARACTERISTICS

Standard Operating Conditions: 3.0V to 3.6V (unless otherwise stated)

Operating temperature

-40°C

≤ TA ≤ +85°C for Industrial

-40°C

≤ TA ≤ +125°C for Extended

Param

No.

Symbol

Characteristic

Min

Typ(1)

Max

Units

Conditions

OS50

FPLLI

PLL Voltage Controlled

Oscillator (VCO) Input

Frequency Range

0.8

—

MHz ECPLL and XTPLL modes

OS51

FSYS

On-Chip VCO System

Frequency

100

—

200

MHz

OS52

TLOCK

PLL Start-up Time (Lock Time)

0.9

1.5

3.1

OS53

DCLK

CLKO Stability (Jitter)

-3

0.5

Measured over 100 ms

period

Note 1: Data in “Typ” column is at 3.3V, 25°C unless otherwise stated. Parameters are for design guidance only

and are not tested.

TABLE 23-18: AC CHARACTERISTICS: INTERNAL RC ACCURACY

AC CHARACTERISTICS

Standard Operating Conditions: 3.0V to 3.6V (unless otherwise stated)

Operating temperature

-40°C

≤ TA ≤ +85°C for Industrial

-40°C

≤ TA ≤ +125°C for Extended

Param

No.

Characteristic

Min

Typ

Max

Units

Conditions

Internal FRC Accuracy @ 7.3728 MHz(1,2)

F20

FRC

-2

—

-40°C

≤ TA ≤ +85°C

VDD = 3.0-3.6V

FRC

-5

—

-40°C

≤ TA ≤ +125°C

VDD = 3.0-3.6V

Note 1:

Frequency calibrated at 25°C and 3.3V. TUN bits may be used to compensate for temperature drift.

FRC is set to initial frequency of 7.37 MHz (±2%) at 25°C.

TABLE 23-19: INTERNAL RC ACCURACY

AC CHARACTERISTICS

Standard Operating Conditions: 3.0V to 3.6V (unless otherwise stated)

Operating temperature

-40°C

≤ TA ≤ +85°C for Industrial

-40°C

≤ TA ≤ +125°C for Extended

Param

No.

Characteristic

Min

Typ

Max

Units

Conditions

LPRC @ 32.768 kHz(1)

F21

LPRC

-20

±6

+20

-40°C

≤ TA ≤ +85°C

VDD = 3.0-3.6V

LPRC

-70

—

+20

-40°C

≤ TA ≤ +125°C

VDD = 3.0-3.6V

Note 1: Change of LPRC frequency as VDD changes.

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