SiT8924B Automotive AEC-Q100 Oscillator Features Applications AEC-Q100 with extended temperature range (-55C to 125C) Automotive, extreme temperature and other high-rel Frequencies between 1 MHz and 110 MHz accurate to electronics 6 decimal places Infotainment systems, collision detection devices, and Supply voltage of 1.8V or 2.25V to 3.63V in-vehicle networking Excellent total frequency stability as low as 20 ppm Powertrain control Industry best G-sensitivity of 0.1 PPB/G Low power consumption of 3.8 mA typical at 1.8V Standby mode for longer battery life LVCMOS/LVTTL 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 RoHS and REACH compliant, Pb-free, Halogen-free and Antimony-free Electrical Characteristics 1,2 Table 1. 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. Parameters Symbol Min. Typ. Max. Unit Condition Frequency Range Output Frequency Range f 1 110 MHz Refer to Table 13 to 15 for a list supported frequencies Frequency Stability and Aging Frequency Stability F stab -20 +20 ppm Inclusive of Initial tolerance at 25C, 1st year aging at 25C, and variations over operating temperature, rated power -25 +25 ppm supply voltage and load (15 pF 10%) -30 +30 ppm -50 +50 ppm Operating Temperature Range -40 +85 C AEC-Q100 Grade 3 Operating Temperature T use Range (ambient) -40 +105 C AEC-Q100 Grade 2 -40 +125 C AEC-Q100 Grade 1 -55 +125 C Extended cold AEC-Q100 Grade1 Supply Voltage and Current Consumption Supply Voltage Vdd 1.62 1.8 1.98 V All voltages between 2.25V and 3.63V including 2.5V, 2.8V, 3.0V and 3.3V are supported 2.25 3.63 V Current Consumption Idd 4.0 4.8 mA No load condition, f = 20 MHz, Vdd = 2.25V to 3.63V 3.8 4.5 mA No load condition, f = 20 MHz, Vdd = 1.8V OE Disable Current I od 4.5 mA Vdd = 2.5V to 3.3V, OE = Low, Output in high Z state 4.3 mA Vdd = 1.8V, OE = Low, Output in high Z state I std Standby Current 2.6 A Vdd = 2.8V to 3.3V, ST = Low, Output is weakly pulled down 1.4 A Vdd = 2.5V, = Low, Output is weakly pulled down ST 0.6 A Vdd = 1.8V, ST = Low, Output is weakly pulled down LVCMOS Output Characteristics Duty Cycle DC 45 55 % All Vdd levels Rise/Fall Time 1.5 3 ns Vdd = 2.25V - 3.63V, 20% - 80% Tr, Tf 1.3 2.5 ns Vdd = 1.8V, 20% - 80% IOH = -4 mA (Vdd = 3.0V or 3.3V) Output High Voltage VOH 90% Vdd IOH = -3 mA (Vdd = 2.8V and Vdd = 2.5V) IOH = -2 mA (Vdd = 1.8V) Output Low Voltage VOL IOL = 4 mA (Vdd = 3.0V or 3.3V) 10% Vdd IOL = 3 mA (Vdd = 2.8V and Vdd = 2.5V) IOL = 2 mA (Vdd = 1.8V) Rev 1.7 May 22, 2019 www.sitime.com SiT8924B Automotive AEC-Q100 Oscillator 1,2 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 100 k Pin 1, OE logic high or logic low, or ST logic high 2 M Pin 1, ST logic low Startup and Resume Timing Startup Time T start 5.5 ms Measured from the time Vdd reaches its rated minimum value Enable/Disable Time T oe 130 ns f = 110 MHz. For other frequencies, T oe = 100 ns + 3 * cycles Resume Time T resume 5 ms Measured from the time ST pin crosses 50% threshold Jitter RMS Period Jitter T jitt 1.6 2.5 ps f = 75 MHz, 2.25V to 3.63V 1.9 3.0 ps f = 75 MHz, 1.8V RMS Phase Jitter (random) T phj 0.5 ps f = 75 MHz, Integration bandwidth = 900 kHz to 7.5 MHz 1.3 ps f = 75 MHz, Integration bandwidth = 12 kHz to 20 MHz Notes: 1. All electrical specifications in the above table are specified with 15 pF output load and for all Vdd(s) unless otherwise stated. 2. The typical value of any parameter in the Electrical Characteristic table is specified for the nominal value of the highest voltage option for that parameter and at 25C temperature. Table 2. Pin Description Top View Pin Symbol Functionality 3 H : specified frequency output Output Enable L: output is high impedance. Only output driver is disabled. 1 4 OE/ST/NC VDD 3 H : specified frequency output 1 Standby L: output is low (weak pull down). Device goes to sleep mode. OE/ ST /NC Supply current reduces to I std. 3 Any voltage between 0 and Vdd or Open : Specified frequency No Connect 2 3 OUT GND output. Pin 1 has no function. 4 2 GND Power Electrical ground Output Oscillator output 3 OUT Figure 1. Pin Assignments 4 Power Power supply voltage 4 VDD Notes: 3. 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. 4. A capacitor of value 0.1 F or higher between Vdd and GND is required. Rev 1.7 Page 2 of 19 www.sitime.com