EmbeddedRelated.com
    Parts    SIT1566AI-JE-18E-32.768E
SIT1566AI-JE-18E-32.768E

SIT1566AI-JE-18E-32.768E

SiTime
32.768 kHz TCXO LVCMOS Oscillator 1.8V 4-UFBGA, CSPBGA
Active12,385 in stock
Datasheet Digi-Key Mouser Compare Prices

Overview

The SiT1566AI-JE-18E-32.768E is a compact 32.768 kHz TCXO (Temperature Compensated Crystal Oscillator) utilizing MEMS technology. It provides a stable LVCMOS output at 1.8V, making it suitable for power-sensitive applications requiring precise timing. Its small 1.5mm x 0.8mm 4-UFBGA package makes it ideal for space-constrained designs.

Why Choose This Part

This TCXO offers excellent frequency stability of +/-5ppm over its operating temperature range, ensuring reliable timing for critical functions. Its ultra-small 1.5mm x 0.8mm footprint and 0.60mm seated height make it an ideal choice for compact designs. The MEMS-based design provides enhanced robustness compared to traditional quartz oscillators.

Applications

Wearable Devices
Provides precise, low-power 32.768 kHz timing for real-time clocks and system clocks in smartwatches, fitness trackers, and other battery-powered wearables.
Internet of Things (IoT) Nodes
Delivers accurate timekeeping for low-power IoT sensor nodes, enabling efficient sleep modes and reliable data synchronization over wireless networks.
Portable Medical Devices
Offers stable timing in compact, battery-operated medical devices where space and power consumption are critical factors.
Battery-Powered Consumer Electronics
Suitable for various small consumer electronics that require a compact, stable, and low-power 32.768 kHz clock source.

Key Specifications

Type TCXO
Output LVCMOS
Frequency 32.768 kHz
Mounting Type Surface Mount
Base Resonator MEMS
Package / Case 4-UFBGA, CSPBGA
Size / Dimension 0.061" L x 0.033" W (1.54mm x 0.84mm)
Voltage - Supply 1.8V
Frequency Stability +/-5ppm
Height - Seated (Max) 0.024" (0.60mm)
Operating Temperature -40degC ~ 85degC
Current - Supply (Max) 5.3uA
Supplier Device Package 4-CSP (1.54x.84)

Getting Started

To use this oscillator, integrate it into your PCB layout following standard design guidelines for surface-mount components. Ensure proper impedance matching and decoupling on the 1.8V supply rail for optimal performance. Refer to the SiTime datasheet for recommended layout practices and power supply filtering.