SiT1534

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Ultra-Small µPower, 1 Hz to 32.768 kHz Programmable Oscillator

The SiT1534 is the first programmable oscillator capable of a frequency range between 32.768 kHz down to 1 Hz for true pulse-per-second (PPS) operation. SiTime's silicon MEMS technology enables the smallest footprint and chip-scale packaging. In the chip-scale package (CSP), these devices reduce footprint by as much as 80% compared to existing 2.0 x 1.2 mm SMD XTAL packages. Unlike XTALs, the SiT1534 oscillator output enables greater component placement flexibility and eliminates external load capacitors, thus saving additional component count and board space. And unlike standard oscillators, the SiT1534 features NanoDrive™, a factory-programmable output that reduces the voltage swing to minimize power.

World's smallest oscillator in tiny 1508 chip-scale package, consumes only 1.2 mm2 board space
Oscillator Type Hz to kHz XO
Frequency 16 frequencies
Frequency Stability (ppm) 75, 100, 250
Operating Temperature Range (°C) -10 to +70, -40 to +85
Output type LVCMOS, NanoDrive™
Package Type (mm²) 1.5x0.8, 2.0x1.2
Features Hz to kHz frequencies
Voltage Supply (V) 1.2 to 3.63
NanoDrive™ 300mV to 700mV, full swing LVCMOS
Availability Production
  • World's smallest oscillator in tiny 1508 chip-scale package, consumes only 1.2 mm2 board space
    enlarge

    World's smallest oscillator in tiny 1508 chip-scale package, consumes only 1.2 mm2 board space

Factory programmable down to 1 Hz

  • Significantly reduces power compared to fixed 32.768 kHz XTAL

Smallest footprint in chip-scale (CSP): 1.5 x 0.8 mm

  • Saves board space by up to 80% compared to the 2012 SMD

Small SMD package: 2.0 x 1.2 mm (2012)

  • Pin-compatible to 2012 XTAL SMD

NanoPower: 900 nA (typ.)

  • Extends battery life

Operates down to 1.2 V

  • Supports coin-cell or supercap battery backup

NanoDrive™ reduced swing oscillator output

  • Directly interfaces to MCU/PMIC/chipset XTAL IN
  • Programmable output swing minimizes power
  • Oscillator output eliminates load capacitor

No load or VDD filtering capacitors

  • Eliminates any external capacitors
  • Eliminates any external capacitors
  • Eliminates load dependent startup issues

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

  • 2x better stability compared to quartz
  • Improves wireless connectivity and RTC accuracy

 

  • Wireless mouse
  • Wireless keypads
  • Pulse-per-second (PPS) timekeeping
  • RTC reference clock
  • Battery management timekeeping

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