ASH7K Datasheet, PDF (1/2 Pages) Abracon Corporation – Clock drivers for Real Time Clocks

32.768kHz SMD CRYTAL OSCILLATOR
ASH7K
FEATURES:
• Ultra-miniature size 3.2x1.5x1.0mm [max.]
• Low Voltage Operation (Min:1.5V)
• Low Current Consumption (3.5uA Max @1.5V)
• Operating temperature : -40 to +85 °C
• VDD controls the output amplitude
• Tri-state function
STANDARD SPECIFICATIONS
Parameters
Center Frequency
Operating Temperature
Storage Temperature
Frequency Tolerance
Overall Frequency Stability
Supply Voltage Range (V_dd)
Supply Voltage Range (V_IO)
V_dd Current Consumption
V_IO Current Consumption
Output Load (CMOS)
Output Voltage
V_OH
V_OL
Aging
Symmetry
Disable Delay Time
Start-up Time
Rise Time
Fall Time
Minimum
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-40
-55
-18
-120
-170
1.5
1.5
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V_IO -0.4
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-3.0
45
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PART IDENTIFICATION:
Pb RoHS
Compliant
3.2 x 1.5 x 1.0mm
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APPLICATIONS:
• Factory Automation
• PC Sever
• W-LAN/GPS Chipset
• General purpose clock generator for digital systems
• Clock drivers for Real Time Clocks
• Timekeeping in network servers and computers
• Electricity, gas and water metering
• Portable field communication
• Mobile phone
• Clock & Data recovery
• CCD clock for VTR camera
• Computers and peripherals
• Portable MP3 players & games
Typical
32.768
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+5
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Maximum
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+85
+125
+28
+10
+10
3.6
3.6
0.7
0.8
3.5
15
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0.4
+3.0
55
1.0
0.6
50.0
50.0
Units
kHz
°C
°C
ppm
ppm
V
V
µA
µA
µA
pF
V
ppm/year
%
µs
s
ns
ns
Notes
Store as bare product after unpacking
Ref: Ta=+25±2°C; V_dd=3.3V;
Preset frequency after 2 times reflow
-20~70°C (+25°C is reference)
-40~85°C (+25°C is reference)
V_dd=3.3V
Input Voltage on pin 1
No Load, V_IO=3.3V±0.3V
Load=15pF, V_IO=3.3V±0.3V
CMOS Load
IOH=-0.4mA
IOL=+0.4mA
@+25±2°C
@50% V_IO
Load=15pF, 0.2V_IO to 0.8V_IO
Load=15pF, 0.8V_IO to 0.2V_IO
ASH7K-32.768kHz-T
RECOMMENDED TEST CIRCUIT
Waveform measurement
Current consumption measurement
ABRACON IS
ISO9001:2008
CERRTTIIFFIIEEDD
Visit www.abracon.com for Terms & Conditions of Sale Revised: 12.27.11
30332 Esperanza, Rancho Santa Margarita, California 92688
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