IQMS-143 Datasheet, PDF (1/3 Pages) IQD Frequency Products Ltd – MEMS Oscillator Specification

ISSUE 1; March 2016
Description
Smallest footprint chip scale package (CSP), ultra low power
MEMS Temperature Compensated Oscillator at 32.768kHz
with CMOS output in a plastic package featuring a
programmable drive strength feature to optimise specific clock
applications. Factory programmable for a short lead time. Uses
SiTime’s MEMS First™ technology.
APPLICATIONS:
Smart Meters (Automatic Meter Reading)
Health and Wellness Monitors
Pulse-per-Second (pps) Timekeeping
RTC Reference Clock
Frequency Parameters
Frequency
32.768kHz
Frequency Stability
±5.00ppm to ±20.00ppm
Ageing
±1ppm max in 1st year @ 25°C
& Vs=3.3V
Frequency Stability and Tolerance Combined (Over
Temperature):
When stability=±5ppm, stability and tolerance
combined=±10ppm
When stability=±10ppm, stability and tolerance
combined=±13ppm
When stability=±20ppm, stability and tolerance
combined=±22ppm
Note: Frequency Stability is measured as peak-to-peak/2.
Inclusive of three reflow processes and ±20% load variation,
no board level underfill. Tested with an Agilent 53132A
frequency counter. Due to the low operating frequency the
gate time must be ≥100ms to ensure an accurate frequency
measurement.
Supply Voltage Variation:
@ Vs=1.8V ±10%: ±0.75ppm max
@ Vs=1.5V to 3.63V: ±1.5ppm max
Electrical Parameters
Supply Voltage: 1.5V to 3.63V @ -40°C to 85°C
Absolute Maximum Supply Voltage Rating: -0.5 to 3.63V
Absolute Short Duration Supply Voltage (30mins max): 4.0V
max
Note: Operating beyond these limits may result in change or
permanent damage to the oscillator.
Core Operating Current:
Measured with -
TA=25°C, Vs=1.8V and no load: 0.99μA typ
TA=-40°C to 85°C, Vs=1.5V to 3.63V and no load: 1.52μA max
Note: Core Operating Current does not include Output Driver
Operating Current or load current. To derive Total Operating
Current (no load) add Core Operating Current + Output Driver
Operating Current (a function of Output Voltage Swing).
Power Supply Ramp (Vs ramp-up from 0 to 90%, TA=-40°C to
85°C): 100ms max
Start Up Time @ Power Up:
Measured with -
TA=-40°C to 60°C, valid output: 180ms typ, 300ms max
TA=60°C to 70°C, valid output: 350ms max
TA=70°C to 85°C, valid output: 380ms max
MEMS Oscillator Specification
IQMS-143
Outline (mm)
Sales Office Contact Details:
UK: [phone]
Germany: 0800 1808 443
France: 0800 901 383
USA: +1.760.318.2824
Printed on 31 Aug 16 16:03 using Model Data Sheet V1.2550
Email: [e-mail]
Web: www.iqdfrequencyproducts.com
Page 1 of 3