SITIME晶振SiT1576温补振荡器规格书.pdf

SiT1576 Preliminary 1.2mm2 Micropower, Low-Jitter, 1Hz - 1MHz Programmable Super TCXO The Smart Timing Choice? Features ? 1 Hz to 1 MHz ±5 ppm all-inclusive frequency stability ? Factory programmable output frequency ? World’s smallest TCXO Footprint: 1.2 mm2 - 1.5 x 0.8 mm CSP - No external bypass cap required ? Improved stability reduces system power with fewer network timekeeping updates ? Ultra-low power: 8 μA (100 kHz) ? Supply voltage: 1.8V ±10% ? Operating temperature ranges: -20°C to +70°C, -40°C to +85°C ? Pb-free, RoHS and REACH compliant Applications ? Health and wellness monitors ? Smart pens ? ULP input devices ? Proprietary wireless ? Sensor interface Electrical Characteristics Conditions: Min/Max limits are over temperature, Vdd = 1.8V ±10%, unless otherwise stated. Typicals are at 25°C and Vdd = 1.8V. Parameter Symbol Min. Typ. Max. Unit Condition Frequency and Stability Output Frequency Fout 1 1M Hz Total Frequency Stability [1] F_stab -5 5 ppm All inclusive, Stability code: E -20 20 ppm All inclusive, Stability code: 1 Allan Deviation AD 1e-8 4e-8 1 second averaging time First Year Frequency Aging F_aging ±1 ppm TA = 25°C, Vdd = 1.8V Jitter Performance Integrated Phase Jitter IPJ 1.8 2.5 nsRMS FOUT 1 kHz. Integration bandwidth = 100 Hz to FOUT /2. Inclusive of 50 mV peak-to-peak sinusoidal noise on Vdd. Noise frequency 100 Hz to 20 MHz. Period Jitter PJ 2.5 4 nsRMS Cycles = 10,000, f = 100kHz. Per JEDEC standard 65B Peak-to-Peak Period Jitter PJp-p 20 35 nsp-p Supply Voltage and Current Consumption Operating Supply Voltage Vdd 1.62 1.8 1.98 V Supply Current Idd 2 μA FOUT = 1 Hz 4.5 FOUT = 33 kHz 8 FOUT = 100 kHz 20 FOUT = 1 MHz Start-up Time at Power-up t_start 300 ms Measured when supply reaches 90% of final Vdd to the first output pulse. Operating Temperature Range Operating Temperature Range Op_Temp -20 70 °C “C” ordering code -4