RV-3049 datasheet(52/65 Pages) MICROCRYSTAL

52 / 65 page

Micro Crystal

DTCXO Temperature Compensated Real Time Clock / Calendar Module

RV-3049

52/65

7. ELECTRICAL CHRACTERISTICS

7.1. ABSOLUTE MAXIMUM RATINGS

In accordance with the Absolute Maximum Rating System IEC 60134

PARAMETER

SYMBOL

CONDITIONS

MIN.

MAX.

UNIT

Supply voltage

VDD

>GND / <VDD

GND -0.3

+6.0

Supply current

IDD ; ISS

VDD Pin

-50

+50

Input voltage

Input Pin

GND -0.3

VDD +0.3

Output voltage

INT / CLKOUT

GND -0.5

VDD +0.5

DC Input current

-10

+10

DC Output current

-10

+10

Total power dissipation

PTOT

300

Operating ambient temperature range

TOPR

-40

+125

°C

Storage temperature range

TSTO

Stored as bare product

-55

+125

°C

Electro Static Discharge voltage

VESD

HBM

±2000

±300

Latch-up current

ILU

200

1)HBM: Human Body Model, according to JESD22-A114.

2)MM: Machine Model, according to JESD22-A115.

3)Latch-up testing, according to JESD78.

Stresses above these listed maximum ratings may cause permanent damage to the device. Exposure beyond

specified operating conditions may affect device reliability or cause malfunction.

7.2. FREQUENCY AND TIME CHARACTERISTICS

VDD= 3.0 V; VSS= 0 V; Tamb= +25°C; fOSC= 32.768 kHz

PARAMETER

SYMBOL

CONDITIONS

TYP.

MAX.

UNIT

32.768 kHz Oscillator Characteristics

Frequency accuracy

∆

f/f

FCLKOUT = 32.7678 kHz

Tamb

= +25°C

VDD

= 3.0 V

+/-10

+/-20

ppm

Frequency vs. voltage characteristics

∆

f/(f∆V)

Tamb = +25°C

VDD = 1.4 V to 5.5 V

+/-0.5

+/-1.0

ppm/V

Frequency vs. temperature characteristics

∆

f/TOPR

TOPR = -40°C to +125°C

VDD = 3.0 V

-0.035

ppm/

°C

2 (T

OPR-T0)

(+/-10%)

ppm

Turnover temperature

+25

20 - 30

°C

Aging first year max.

∆

f/f

Tamb = +25°C

+/-3

ppm

Oscillator start-up voltage

VStart

Tamb = +25°C

TStart < 10 s

1.0

Oscillator start-up time

TStart

Tamb = -40°C to +85°C

0.5

Tamb = -40°C to +125°C

CLKOUT duty cycle

FCLKOUT = 32.7678 kHz

TAMB = +25°C

40/60

Time accuracy, DTCXO Digitally Temperature Compensated

Time accuracy Opt: A

∆

t/t

Tamb = +25°C

+/-1

+/-3

ppm

Tamb = 0°C to +50°C

+/-2

+/-4

Tamb = -10°C to +65°C

+/-3

+/-5

Tamb = -40°C to +85°C

+/-4

+/-6

Tamb = -40°C to +125°C

+/-5

+/-8

Time accuracy Opt: B

∆

t/t

Tamb = +25°C

+/-1

+/-3

ppm

Tamb = 0°C to +50°C

+/-3

+/-5

Tamb = -10°C to +65°C

+/-5

+/-10

Tamb = -40°C to +85°C

+/-10

+/-25

Tamb = -40°C to +125°C

+/-15

+/-30

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