32.768 kHz Oscillators

SiTime offers a full portfolio of MEMS kHz oscillators and TCXOs. The unique combination of an ultra-small footprint, µPower operation, and accuracy makes the devices an ideal fit for driving multiple loads, such as BLE sleep clocks, RTC, audio, and other connectivity SOCs.

CATEGORIES

32 kHz Oscillators   |   32 kHz TCXOs


32 kHz Oscillators

SiTime's MEMS 32 kHz solutions are ideal for replacing traditional quartz crystals (resonators) in wearable and mobile applications, where space and power are critical. 

  • Smallest footprint: 1.2 mm2 (1.5 x 0.8 mm) CSP (SiT1532, SiT1572)
  • Ultra-low power, as low as <1 μA
  • NanoDrive™ programmable output swing minimizes power compared to LVCMOS output (SiT1532/3)
  • 1.2 V operation-optimized for regulated supply applications, such as coin-cell or super-cap battery backup
  • All-inclusive frequency stability, as low as ±50 ppm over temp. (SiT1572)

 

Device Datasheet Frequency Stability
(PPM)
Output Type Supply Voltage
(V)
Temp. Range
(°C)
Package Size
(mm)
SiT1532 32.768 kHz 75
100
250
LVCMOS
NanoDrive™
1.2 to 3.63 -10 to +70
-40 to +85
1.5x0.8
SiT1533 32.768 kHz 75
100
250
LVCMOS
NanoDrive™
1.2 to 3.63 -10 to +70
-40 to +85
2.0x1.2
SiT1572 32.768 kHz ±50 LVCMOS 1.62 to 3.63 -20 to +70
-40 to +85
1.5x0.8
SiT1630 32.768 kHz 75
100
150
LVCMOS 1.5 to 3.63 -10 to +70
-40 to +85
-40 to +105
2.0x1.2
SOT23-5(Sample only)

 


32 kHz TCXOs

SiTime's 32 kHz TCXO family is the first to offer ±3 ppm stability in a 1.2 mm2 chip-scale package. The typical core supply current is as low as 1 μA. These 32 kHz TCXOs are factory-calibrated over multiple temperature points to guarantee extremely tight, all-inclusive frequency stability.

  • Supply current as low as 0.99 μA (SiT1552)
  • Stability options include ±3 ppm (SiT1566 at 4.5 μA) and ±10 ppm (SiT1552 at 0.99 μA)
  • NanoDrive™ programmable output swing minimizes power compared to LVCMOS output (SiT1552)

 

Device Datasheet Frequency Stability
(PPM)
Output Type Supply Voltage
(V)
Temp. Range
(°C)
Package Size
(mm)
SiT1552 32.768 kHz ±10
±20
LVCMOS
NanoDrive™
1.5 to 3.63 -0 to +70
-40 to +85
1.5x0.8
SiT1566 32.768 kHz ±3
±5
LVCMOS 1.62 to 3.63 -20 to +70
-40 to +85

1.5x0.8

SiT1568 32.768 kHz ±5 LVCMOS 1.8 -20 to +70
-40 to +85
1.5x0.8