R
EM MICROELECTRONIC - MARIN SA
EM1564
Low Power Crystal Oscillator 32.768 kHz
Description
Features
The EM1564 is a very low power crystal oscillator, which
consists of a 32.768 kHz tuning fork crystal and an
advanced CMOS circuit assembled in the same very
small SMD ceramic package.
All-in-one-package solution
Miniature ceramic package for SMD mounting
Package height 1.2mm
Very low power consumption, as low as 300nA, is
Very low power consumption typ. 300nA
Very tight frequency tolerance
guaranteed over
a very wide supply voltage and
temperature ranges.
The EM1564 is a completely lead free product.
Excellent oscillator stability: 0.2 ppm/V
Wide supply voltage range: 1.2V to 5.5V
Operating temperature range: -40°C to +85°C
Applications
General purpose clock generator for digital systems
Clock drivers for Real Time Clocks
Timekeeping in network servers and computers
Data logger
On request extended temperature range: -40°C to
+125°C
Low aging
High shock and vibration resistant
100% lead free, RoHS - compliant
Electricity, gas and water metering
Portable field communication
Mobile phone
Block Diagram
VDD
1
REGULATION
OSCILLATOR
Fig. 1
10
5
OUTPUT
CONTROL
OUT
OE
6
VSS
Fig. 2
Pin Connection Top View
Pin
Connection
1
VDD
Positive Supply Voltage
Frequency Output
5
OUT
VSS
OE
6
Negative Supply Voltage
Output Enable
10
Pins 2, 3, 4, 7, 8, 9 are not connected
1
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