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EM MICROELECTRONIC - MARIN SA
EM1564
Low Power Crystal Oscillator 32.768 kHz
Description
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. Very low power consumption, as low as 300nA, is guaranteed over a very wide supply voltage and temperature ranges. The EM1564 is a completely lead free product.
Features
All-in-one-package solution Miniature ceramic package for SMD mounting Package height 1.2mm Very low power consumption typ. 300nA Very tight frequency tolerance Excellent oscillator stability: 0.2 ppm/V Wide supply voltage range: 1.2V to 5.5V Operating temperature range: -40C to +85C On request extended temperature range: -40C to +125C Low aging High shock and vibration resistant 100% lead free, RoHS - compliant
Applications
General purpose clock generator for digital systems Clock drivers for Real Time Clocks Timekeeping in network servers and computers Data logger Electricity, gas and water metering Portable field communication Mobile phone
Block Diagram
VDD 1
REGULATION
OSCILLATOR
Fig. 1
OE
10
OUTPUT CONTROL
5
OUT
6 VSS
Fig. 2
Pin Connection Top View
Pin 1 5 6 10 Connection VDD OUT VSS OE Positive Supply Voltage Frequency Output Negative Supply Voltage Output Enable
Pins 2, 3, 4, 7, 8, 9 are not connected
Copyright (c) 2006, EM Microelectronic-Marin SA
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EM1564
Absolute Maximum Ratings
Parameter Voltage at VDD to VSS Minimum voltage at OE Maximum voltage at OE Storage temperature range Maximum soldering Symbol Conditions VDD -0.3V to +6V VMIN VSS - 0.3V VMAX VDD + 0.3V TSTG -55C to +150C TSmax 260C x 20s
Handling Procedures
This device has built-in protection against high static voltages or electric fields; however, anti-static precautions must be taken as for any other CMOS component. Unless otherwise specified, proper operation can only occur when all terminal voltages are kept within the voltage range. Unused inputs must always be tied to a defined logic voltage level.
Stresses above these listed maximum ratings may cause permanent damages to the device. Exposure beyond specified operating conditions may affect device reliability or cause malfunction.
Operating Conditions
Parameter Supply voltage Operating temperature Symbol Min VDD 1.2 TA -40 Max 5.5 +85 Unit V C
Electrical Characteristics
Unless otherwise specified: VDD= 3.0V, VSS= 0V, TA=25C Parameter Symbol Conditions Min Typ Max Unit Supply voltage range VDD 1.2 3.0 5.5 V Current consumption IDD1 VDD= 5.0V, OE at VSS 300 550 nA (Note1) 250 500 nA VDD= 3.0V, OE at VSS VDD= 2.0V, OE at VSS 250 500 nA 750 1000 nA VDD= 5.0V, OE at VSS Top=-40 to +85C 650 900 nA VDD= 3.0V, OE at VSS Top=-40 to +85C 650 900 nA VDD= 2.0V, OE at VSS Top=-40 to +85C Oscillator Start up voltage VSTARTUP tSTART < 3s 1.2 V Start up time tSTARTUP 0.4 0.8 s Frequency stability against 0.2 2 ppm/V f/f *V 1.5 VDD 5.5V supply voltage variations Input Input voltage VIL VSS 0.2 x VDD V VIH 0.8 x VDD VDD V Output Duty cycle 40 50 60 % Output voltage VOH IOH = -1.0 mA, VDD= 5.0V VDD-0.4 VDD-0.1 V VOL IOL = 1.0 mA, VDD= 5.0V 0.14 0.4 V Output rise time Tr CL = 15pF 10%VDD 90%VDD 70 100 ns Output fall time Tf CL = 15pF 90%VDD 10%VDD 70 100 ns Output frequency f 32768 kHz (Note2) Frequency tolerance f/f 20 ppm Aging first year max f/f 3 ppm Frequency vs temperature (f/f) /C -0.035 10% ppm/C Note1: The current consumption when the output clock is enabled (OE pin at VDD) is a function of the load capacitance on the OUT pin, the output frequency fOUT = 32768Hz and the supply voltage VDD. The additional consumption for a given load can be calculated from: IDD = CLOAD x VDD x fOUT Note2: Tighter tolerances are available on request.
Environmental Characteristics
Parameter Shock resistance Vibration resistance Symbol f/f f/f Conditions 5000g, 0.3ms, 1/2sine 20g / 10-2000Hz Min Typ Max 5 5 Unit ppm ppm
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EM1564
Timing Waveforms
32768Hz
OE
OUT
tCKH tCKL
32768Hz
OE
OUT
tCKH tCKL = 0
OE
VIH
VIL
OUT
tCKH tCKL
Frequency Temperature Characteristics
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EM1564
Package Information: Package: Recommended Solder Pad:
All dimensions in mm typical
The termination is with Au flashed pads for SMD mounting.
Ordering Information
The EM1564 can be delivered with different frequency tolerances and in different packages. Contact EM Microelectronic for availability of different options not shown in the table below. Please make sure to write the exact Part Number when ordering. Frequency Tolerance Top Marking 1464 Delivery Form 7"(178mm) reel with 1'000 packages 10"(254mm)reel with 2'500 packages 13"(330mm)reel with 5'000 packages
Part Number
Version
Package Type
EM1564V1SON10B+
V1
20 ppm (Note2)
SON -10
Note2: Tighter tolerances are available on request.
EM Microelectronic-Marin SA (EM) makes no warranty for the use of its products, other than those expressly contained in the Company's standard warranty which is detailed in EM's General Terms of Sale located on the Company's web site. EM assumes no responsibility for any errors which may appear in this document, reserves the right to change devices or specifications detailed herein at any time without notice, and does not make any commitment to update the information contained herein. No licenses to patents or other intellectual property of EM are granted in connection with the sale of EM products, expressly or by implications. EM's products are not authorized for use as components in life support devices or systems.
(c) EM Microelectronic-Marin SA, 02/06, Rev. A Copyright (c) 2006, EM Microelectronic-Marin SA 4 www.emmicroelectronic.com

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