RV-3029 Datasheet, PDF (5/67 Pages) MICORO CRYSTAL SWITZERLAND – DTCXO Temperature Compensated Real Time Clock

Micro Crystal
DTCXO Temperature Compensated Real Time Clock / Calendar Module
RV-3029
RV-3029
Highly accurate, DTCXO Temperature Compensated Real Time Clock / Calendar Module
with I²C 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
25°C
0°C to + 50°C
-10°C to + 60°C
-40°C to + 85°C
-40°C to +125°C
Opt: A
+/- 3 ppm
+/- 4 ppm
+/- 5 ppm
+/- 6 ppm
+/- 8 ppm
Opt: B
+/- 3 ppm
+/- 5 ppm
+/- 10 ppm
+/- 25 ppm
+/- 30 ppm
• Ultra low power consumption:
800nA typ @ V_DD = 3.0V / T_amb = 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
• I²C serial interface with fast mode SCL clock frequency of 400 kHz
• 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-3029 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 an I²C interface with a maximum SCL clock
frequency in fast mode of 400 kHz, 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-3029 offers highly versatile Alarm and Timer-Interrupt function, programmable Clock-Output
and Low-Voltage Detector.
1.2. APPLICATIONS
The RV-3029 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
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