This 32.768 kHz MEMS TCXO provides a temperature-compensated reference clock in a 1.5 x 0.8 mm chip-scale package with a 1.2 mm² footprint. It operates from 1.5 V to 3.63 V and draws 0.99 μA typical core current with 180 ms typical start-up time. The device supports ±5 ppm, ±10 ppm, and ±20 ppm stability options over temperature, offers programmable output swing options, and eliminates the need for an external Vdd bypass capacitor. Family operating grades span 0 °C to 70 °C and -40 °C to 85 °C, with long-term jitter up to 2.5 μspp and period jitter of 35 ns RMS.
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Sitime SiT1552AC-J1-D14-32.768 technical specifications.
| Output Frequency | 32.768kHz |
| Frequency Stability Over Temperature | ±5 / ±10 / ±20 optionsppm |
| Operating Supply Voltage | 1.5 to 3.63V |
| Core Supply Current | 0.99 typμA |
| Core Supply Current | 1.52 maxμA |
| Start-up Time at Power-up | 180 typ, 300 maxms |
| Operating Temperature Range | 0 to 70 or -40 to 85°C |
| Long-Term Jitter | 2.5 maxμspp |
| Period Jitter | 35 typns RMS |
| Output Clock Duty Cycle | 48 to 52% |
| LVCMOS Rise/Fall Time | 100 typ, 200 max at 15 pFns |
| Package Size | 1.5 x 0.8mm |
| HBM ESD Protection | 3000V |
| Storage Temperature | -65 to 150°C |
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