SIT1533

The SiT1533 is an ultra-small and ultra-low power 32.768 kHz oscillator 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 oscillators, the SiT1533 features NanoDrive™, a factory-programmable output that reduces the voltage swing to minimize power. The 1.2 V to 3.63 V operating supply voltage range makes it an ideal solution for mobile applications that incorporate a low-voltage, battery-backup source, such as a coin cell or supercap.

Specifications

Features

Small SMD package: 2.0 x 1.2 mm (2012)

• Pin-compatible to 2012 XTAL SMD
  

NanoPower: 900 nA (typ.)

• Extends battery life
  

NanoDrive™ reduced swing oscillator output

• Directly drives into MCU/PMIC/Chipset XTAL IN
  
• Programmable swing minimizes power
  
• Oscillator output is insensitive to load and operates with or without load capacitors;
  

No load or VDD filter capacitors

• Eliminates all external capacitors
  
• Eliminates load-dependent startup issues common with quartz XTALs
  

Operates down to 1.2 V

• Supports coin-cell or supercap battery-backup
  

<100 ppm frequency stability over -40 °C to +85 °C temp. range

• 2x better stability than quartz XTAL
  
• Improves system connectivity and RTC accuracy