RV-3049 datasheet(5/65 Pages) MICROCRYSTAL

5 / 65 page

Micro Crystal

DTCXO Temperature Compensated Real Time Clock / Calendar Module

RV-3049

5/65

RV-3049

Highly accurate, DTCXO Temperature Compensated Real Time Clock / Calendar Module

with SPI Interface

1. OVERVIEW

•

RTC module with built-in “Tuning Fork” crystal oscillating at 32.768 kHz

•

Factory calibrated, all built-in Temperature Compensation circuitry

Time accuracy:

Temperature Range

Opt: A

Opt: B

25°C

+/- 3 ppm

0°C to + 50°C

+/- 4 ppm

+/- 5 ppm

-10°C to + 60°C

+/- 5 ppm

+/- 10 ppm

-40°C to + 85°C

+/- 6 ppm

+/- 25 ppm

-40°C to +125°C

+/- 8 ppm

+/- 30 ppm

•

Ultra low power consumption:

800nA typ @ VDD = 3.0V / Tamb = 25°C

•

Wide clock operating voltage:

1.3 – 5.5V

•

Wide interface operating voltage:

1.4 – 5.5V

•

Extended operating temperature range:

-40°C to +125°C

•

SPI serial interface with fast mode SCL clock frequency of 1 MHz

•

Provides year, month, day, weekday, hours, minutes and seconds

•

Highly versatile alarm and timer functions

•

Integrated Low-Voltage Detector, Power-On Reset and Self-Recovery System

•

Main Power Supply to Backup Battery switchover circuitry with Trickle Charger

•

Programmable CLKOUT pins for peripheral devices (32.768 kHz / 1024 Hz / 32 Hz / 1 Hz)

•

Available in 2 different small and compact package sizes, RoHS-compliant and 100% leadfree:

C2: 5.0 x 3.2 x 1.2 mm

C3: 3.7 x 2.5 x 0.9 mm

1.1. GENERAL DESCRIPTION

The RV-3049 is a CMOS low power, real-time clock/calendar module with built-in Thermometer and Digital

Temperature Compensation circuitry (DTCXO). The temperature compensation circuitry is factory-calibrated and

greatly improves the time accuracy by compensating the frequency-deviation @ 25°C and the anticipated

frequency-drift over the temperature of the embedded 32.768 kHz “Tuning-Fork” crystal, even over the extended

Temperature Range -40°C to +125°C. Data is transferred serially via a SPI interface with a maximum SCL clock

frequency in fast mode of 1 MHz, the built-in word address register is incremented automatically after each written

or read data byte. Beyond standard RTC-functions like year, month, day, weekday, hours, minutes, seconds

information, the RV-3049 offers highly versatile Alarm and Timer-Interrupt function, programmable Clock-Output

and Low-Voltage Detector.

1.2. APPLICATIONS

The RV-3049 RTC module combines key functions with outstanding performance in a small ceramic package:

•

Factory calibrated Temperature Compensation

•

Extended temperature range up to +125°C

•

Low Power consumption

•

Smallest temperature compensated RTC module with embedded Xtal

These unique features make this product perfectly suitable for many applications:

•

Automotive: Car Radio / GPS and Tracking Systems / Dashboard / Engine Controller /

Car Mobile & Entertainment Systems / Tachometers

•

Metering:

E-meter / Heating Counter

•

Outdoor:

ATM & POS systems / Surveillance & Safety systems / Ticketing systems

•

All kind of portable and battery operated devices

•

Industrial and consumer electronics

•

White goods

RV-3049 датащи(PDF) 5 Page - MICORO CRYSTAL SWITZERLAND

RV-3049 датащи(HTML) 5 Page - MICORO CRYSTAL SWITZERLAND

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65

датащи скачать

ссылки URL