ASAKDV-32.768KHZ-LR-T footprint, schematic symbol and 3D model by ABRACON

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ASAKDV-32.768KHZ-LR-T Details

Manufacturer Part Number:
ASAKDV-32.768KHZ-LR-T
Rohs Code:
Yes
Part Life Cycle Code:
Active
Factory Lead Time:
10 Weeks
Manufacturer:
Abracon Corporation
YTEOL:
7
Additional Feature:
TRISTATE; ENABLE/DISABLE FUNCTION; ALSO COMPATIBLE WITH LVCMOS O/P
Fall Time-Max:
50 ns
Frequency Adjustment-Mechanical:
NO
Frequency Stability:
25%
Mounting Feature:
SURFACE MOUNT
Number of Terminals:
4
Operating Frequency-Nom:
0.032768 MHz
Operating Temperature-Max:
85 °C
Operating Temperature-Min:
-40 °C
Oscillator Type:
CMOS
Output Load:
15 pF
Package Body Material:
CERAMIC
Package Equivalence Code:
LCC4,.06X.08,50/38
Packing Method:
TR, 7 INCH
Physical Dimension:
2.0mm x 1.6mm x 0.8mm
Rise Time-Max:
50 ns
Supply Current-Max:
0.1 mA
Supply Voltage-Max:
3.63 V
Supply Voltage-Min:
1.62 V
Surface Mount:
YES
Symmetry-Max:
55/45 %

Abracon recommends a symmetrical PCB layout with a ground plane underneath the oscillator to minimize noise and radiation. A 4-layer PCB with a dedicated ground layer is ideal. Keep the oscillator away from high-frequency signals and ensure a clear return path for the ground connection.
To ensure reliable startup, Abracon recommends applying a power-up sequence with a slow rise time (typically 1-10 ms) to the VCC pin. This allows the oscillator to stabilize before the circuit is fully powered. Additionally, ensure the power supply is clean and free of noise.
The ASAKDV-32.768KHZ-LR-T has a specified frequency tolerance of ±20 ppm over the operating temperature range. However, Abracon recommends designing the system to accommodate a maximum frequency deviation of ±50 ppm to ensure reliable operation.
While the ASAKDV-32.768KHZ-LR-T is rated for operation up to 85°C, Abracon recommends derating the frequency tolerance and stability specifications for temperatures above 70°C. Consult with Abracon's application engineers for specific guidance on high-temperature applications.
Abracon recommends implementing ESD protection measures, such as TVS diodes or ESD-protection ICs, on the oscillator's input and output pins to prevent damage from electrostatic discharge. Ensure the ESD protection circuitry does not compromise the oscillator's signal integrity.

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