SiT1533 Series Ultra-Low Power 32 kHz Crystal Repl

By SiTime 62

SiT1533 Series Ultra-Low Power 32 kHz Crystal Repl

SiTime’s SiT1533 MEMs oscillators are ultra-small, ultra-low power 32.768 kHz oscillators optimized for mobile and other battery-powered applications. The SiT1533 is pin-compatible and footprint compatible to existing 2012 XTALs when using the SiTime solder-pad layout (SPL). And unlike standard crystal oscillators, the SiT1533 features NanoDrive™, a factory programmable output that reduces the output voltage swing to minimize power. In addition to eliminating external output load capacitors common with standard XTALs, this device includes special power supply filtering and, thus, eliminates the need for an external VDD bypass-decoupling capacitor. The 1.2 V to 3.63 V operating supply voltage range makes it an ideal solution for mobile and wearable electronics such as handsets, tablets, activity trackers, smart watches, GPS modules, applications that incorporate a low-voltage, battery-back-up source such as a coin-cell or super-cap, and Internet of Things (IoT).

NanoDrive™ Output to Optimize Swing and Lower Power

Reducing voltage swing with NanoDrive can reduce total supply current up to 40%. See NanoDrive Product Training Module at https://www.digikey.com/en/ptm/s/sitime/nanodrive/tutorial

Drive Multiple Loads to Minimize BOM and Board Space

Features and Benefits
  • Small SMD package: 2.0 mm x 1.2 mm (2012)
  • Ultra-low power: 900 nA (typ)
  • NanoDrive reduced swing oscillator output
  • No load or VDD filter capacitors
  • Operates down to 1.2 V
  • <100 ppm frequency stability over -40°C to +85°C temp range
  • Pin-compatible to 2012 XTAL SMD
  • Directly drives into MCU/PMIC/Chipset XTAL IN
  • Extends battery life
  • Programmable swing minimizes power
  • Oscillator output is insensitive to load and operates with or without load capacitors
  • Eliminates all external capacitors
  • Eliminates load-dependent start-up issues common with quartz XTALs
  • Supports coin-cell or super cap battery-backup
  • 2x better stability than quartz XTAL
  • Improves system connectivity and RTC accuracy
Applications
  • Smartphones
  • Tablets
  • e-Readers
  • Health and wellness monitors
  • Fitness watches
  • Sport video camcorders
  • Timekeeping
  • Wireless keypads
  • Wireless mouse devices
  • Battery management

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