This programmable MEMS oscillator provides factory-set output frequencies from 1 Hz to 32.768 kHz for pulse-per-second and other low-frequency reference applications. It operates from 1.2 V to 3.63 V and has 0.9 µA typical core operating current at 25°C with a 1.8 V supply and no load. Frequency tolerance is 20 ppm at 25°C, and the family offers stability as tight as 75 ppm over temperature at 1.5 V to 3.63 V. NanoDrive programmable output swing reduces power consumption, and the clock output eliminates external load capacitors while normal operation does not require a bypass capacitor. Typical period jitter is 35 ns RMS, and the output duty cycle is specified at 48% to 52%.
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Sitime SiT1534AI-H4-DCC-02.048 technical specifications.
| Output Frequency | 1 to 32768Hz |
| Frequency Tolerance | 20ppm |
| Frequency Stability | 75 max over -10°C to 70°C at 1.5 V to 3.63 Vppm |
| Supply Voltage | 1.2 to 3.63V |
| Core Operating Current | 0.9 typ at 25°C, 1.8 V, no loadµA |
| Output Stage Operating Current | 0.065 typ, 0.125 maxµA/Vpp |
| Startup Time | 300 + 1 period typ at 25°Cms |
| Output Rise/Fall Time | 100 to 200 LVCMOSns |
| Duty Cycle | 48 to 52% |
| AC-Coupled Output Swing | 0.20 to 0.80V |
| Period Jitter | 35ns RMS |
| HBM ESD Protection | 3000V |
| Storage Temperature | -65 to 150°C |
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