SiT8009B High Frequency, Low Power Oscillator ow Power, Standard Frequency Oscillator Features Applications 100% pin-to-pin drop-in replacement to quartz-based XO Ideal for GPON/EPON, network switches, routers. Excellent total frequency stability as low as 20 ppm servers, embedded systems Operating temperature from -40C to 85C. For 125C and/or Ideal for Ethernet, PCI-E, DDR, etc. -55C options, refer to SiT8919 and SiT8921 Low power consumption of 4.9 mA typical at 1.8V Standby mode for longer battery life Fast startup time of 5 ms LVCMOS/HCMOS compatible output Industry-standard packages: 2.0 x 1.6, 2.5 x 2.0, 3.2 x 2.5, 5.0 x 3.2, 7.0 x 5.0 mm x mm Instant samples with Time Machine II and field programmable oscillators RoHS and REACH compliant, Pb-free, Halogen-free and Antimony-free For AEC-Q100 oscillators, refer to SiT8924 and SiT8925 Electrical Characteristics All Min and Max limits are specified over temperature and rated operating voltage with 15 pF output load unless otherwise stated. Typical values are at 25C and nominal supply voltage. Table 1. Electrical Characteristics Parameters Symbol Min. Typ. Max. Unit Condition Frequency Range Output Frequency Range f 115 137 MHz Frequency Stability and Aging st Frequency Stability F stab -20 +20 ppm Inclusive of Initial tolerance at 25C, 1 year aging at 25C, and variations over operating temperature, rated power -25 +25 ppm supply voltage and load. -50 +50 ppm Operating Temperature Range Operating Temperature Range T use -20 +70 C Extended Commercial -40 +85 C Industrial Supply Voltage and Current Consumption Supply Voltage Vdd Contact SiTime for 1.5 V support 1.62 1.8 1.98 V 2.25 2.5 2.75 V 2.52 2.8 3.08 V 2.7 3.0 3.3 V 2.97 3.3 3.63 V 2.25 3.63 V Current Consumption Idd No load condition, f = 125 MHz, Vdd = 2.8 V, 3.0 V, 3.3 V or 6.2 7.5 mA 2.25 to 3.63 V 5.5 6.4 mA No load condition, f = 125 MHz, Vdd = 2.5 V 4.9 5.6 mA No load condition, f = 125 MHz, Vdd = 1.8 V OE Disable Current I OD 4.2 mA Vdd = 2.5 V to 3.3 V, OE = GND, Output in high-Z state 4.0 mA Vdd = 1.8 V, OE = GND, Output in high-Z state Standby Current I std 2.6 4.3 A ST = GND, Vdd = 2.8 V to 3.3 V, Output is weakly pulled down 1.4 2.5 A ST = GND, Vdd = 2.5 V, Output is weakly pulled down A 0.6 1.3 ST = GND, Vdd = 1.8 V, Output is weakly pulled down LVCMOS Output Characteristics Duty Cycle DC 45 55 % All Vdds Rise/Fall Time Tr, Tf 1 2 ns Vdd = 2.5 V, 2.8 V, 3.0 V or 3.3 V, 20% - 80% 1.3 2.5 ns Vdd =1.8 V, 20% - 80% 0.8 2 ns Vdd = 2.25 V - 3.63 V, 20% - 80% Output High Voltage VOH 90% Vdd IOH = -4 mA (Vdd = 3.0 V or 3.3 V) Output Low Voltage VOL 10% Vdd IOL = 4 mA (Vdd = 3.0 V or 3.3 V) Rev 1.06 15 March 2021 www.sitime.com SiT8009B High Frequency, Low Power Oscillator Table 1. Electrical Characteristics (continued) Parameters Symbol Min. Typ. Max. Unit Condition Input Characteristics Input High Voltage VIH 70% Vdd Pin 1, OE or ST Input Low Voltage VIL 30% Vdd Pin 1, OE or ST Input Pull-up Impedance Z in 50 87 150 Pin 1, OE logic high or logic low, or ST logic high k 2 M Pin 1, ST logic low Startup and Resume Timing 5 ms Measured from the time Vdd reaches its rated minimum value Startup Time T start 122 ns f = 137 MHz. For other frequencies, T oe = 100 ns + 3 * cycles Enable/Disable Time T oe 5 ms Measured from the time ST pin crosses 50% threshold Resume Time T resume Jitter RMS Period Jitter T jitt 1.9 3 ps f = 125 MHz, Vdd = 2.5 V, 2.8 V, 3.0 V or 3.3 V 1.8 4 ps f = 125 MHz, Vdd = 1.8 V Peak-to-peak Period Jitter T pk 12 25 ps f = 125 MHz, Vdd = 2.5 V, 2.8 V, 3.0 V or 3.3 V 14 30 ps f = 125 MHz, Vdd = 1.8 V RMS Phase Jitter (random) T phj 0.5 0.9 ps Integration bandwidth = 900 kHz to 7.5 MHz 1.3 2 ps Integration bandwidth = 12 kHz to 20 MHz Table 2. Pin Description Pin Symbol Functionality Top View 1 H : specified frequency output Output Enable L: output is high impedance. Only output driver is disabled. 1 1 4 H : specified frequency output OE/ST /NC VDD 1 OE/ST /NC Standby L: output is low (weak pull down). Device goes to sleep mode. Supply current reduces to I std. 1 Any voltage between 0 and Vdd or Open : Specified frequency No Connect output. Pin 1 has no function. 2 3 GND OUT 2 GND Power Electrical ground 3 OUT Output Oscillator output Figure 1. Pin Assignments 2 4 VDD Power Power supply voltage Notes: 1. In OE or ST mode, a pull-up resistor of 10 k or less is recommended if pin 1 is not externally driven. If pin 1 needs to be left floating, use the NC option. 2. A capacitor of value 0.1 F or higher between Vdd and GND is required. Rev 1.06 Page 2 of 18 www.sitime.com