SiT8924 Automotive AEC-Q100 Oscillator The Smart Timing Choice The Smart Timing Choice Features Applications AEC-Q100 with extended temperature range (-55C to 125C) Automotive, extreme temperature and other high-rel electronics Frequencies between 1 MHz and 110 MHz accurate to 6 decimal places Infotainment systems, collision detection devices, and in-vehicle networking Supply voltage of 1.8V or 2.25V to 3.63V Power train control Excellent total frequency stability as low as 25 ppm Industry best G-sensitivity of 0.1 PPB/G Low power consumption of 3.8 mA typical at 1.8V 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 Specifications Table 1. Electrical Characteristics[1, 2] Parameters Symbol Min. Typ. Max. Unit Condition Frequency Range Output Frequency Range f 1 - 110 MHz Refer to Table 13 and Table 14 for a list supported frequencies Frequency Stability and Aging Frequency Stability F_stab -25 - +25 ppm -30 - +30 ppm - +50 ppm -50 Inclusive of Initial tolerance at 25C, 1st year aging at 25C, and variations over operating temperature, rated power supply voltage and load (15 pF 10%). Operating Temperature Range Operating Temperature Range (ambient) T_use -40 - +105 C -40 - +125 C Extended Industrial, AEC-Q100 Grade 2 Automotive, AEC-Q100 Grade 1 -55 - +125 C Extended Temperature, AEC-Q100 Supply Voltage and Current Consumption Supply Voltage Current Consumption Vdd Idd 1.62 1.8 1.98 V 2.25 - 3.63 V All voltages between 2.25V and 3.63V including 2.5V, 2.8V, 3.0V and 3.3V are supported. - 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 LVCMOS Output Characteristics Duty Cycle Rise/Fall Time DC 45 - 55 % Tr, Tf - 1.5 3 ns All Vdds Vdd = 2.25V - 3.63V, 20% - 80% - 1.3 2.5 ns Vdd = 1.8V, 20% - 80% Output High Voltage VOH 90% - - Vdd IOH = -4 mA (Vdd = 3.0V or 3.3V) IOH = -3 mA (Vdd = 2.8V and Vdd = 2.5V) IOH = -2 mA (Vdd = 1.8V) Output Low Voltage VOL - - 10% Vdd IOL = 4 mA (Vdd = 3.0V or 3.3V) IOL = 3 mA (Vdd = 2.8V and Vdd = 2.5V) IOL = 2 mA (Vdd = 1.8V) Input High Voltage VIH 70% - - Vdd Pin 1, OE Input Low Voltage VIL - - 30% Vdd Pin 1, OE Input Pull-up Impedence Z_in - 100 - k Pin 1, OE logic high or logic low Input Characteristics Startup and Resume Timing Startup Time T_start - - 10 ms Measured from the time Vdd reaches 90% of final value Enable/Disable Time T_oe - - 130 ns f = 110 MHz. For other frequencies, T_oe = 100 ns + 3 * cycles 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 Jitter 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 Characteristics table is specified for the nominal value of the highest voltage option for that parameter and at 25 C temperature. SiTime Corporation Rev. 1.01 990 Almanor Avenue, Sunnyvale, CA 94085 (408) 328-4400 www.sitime.com Revised June 18, 2015 SiT8924 Automotive AEC-Q100 Oscillator The Smart Timing Choice The Smart Timing Choice Table 2. Pin Description Pin Top View Symbol Functionality Output Enable 1 OE/NC No Connect H[3]: specified frequency output L: output is high impedance. Only output driver is disabled. OE/NC 1 4 VDD GND 2 3 OUT [3] Any voltage between 0 and Vdd or Open : Specified frequency output. Pin 1 has no function. 2 GND Power Electrical ground[4] 3 OUT Output Oscillator output 4 VDD Power Power supply voltage[4] Figure 1. Pin Assignments Notes: 3. In OE mode, a pull-up resistor of 10k 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. N Table 3. Absolute Maximum Limits Attempted operation outside the absolute maximum ratings may cause permanent damage to the part. Actual performance of the IC is only guaranteed within the operational specifications, not at absolute maximum ratings. Min. Max. Unit Storage Temperature Parameter -65 150 C Vdd -0.5 4 V Electrostatic Discharge - 2000 V Soldering Temperature (follow standard Pb free soldering guidelines) - 260 C Junction Temperature[5] - 150 C Note: 5.Exceeding this temperature for extended period of time may damage the device. Table 4. Thermal Consideration[6] JA, 4 Layer Board JA, 2 Layer Board JC, Bottom 7050 142 273 30 5032 97 199 24 3225 109 212 27 2520 117 222 26 2016 152 252 36 (C/W) Package (C/W) (C/W) Note: 6. Refer to JESD51 for JA and JC definitions, and reference layout used to determine the JA and JC values in the above table. Table 5. Maximum Operating Junction Temperature[7] Max Operating Temperature (ambient) Maximum Operating Junction Temperature 105C 115C 125C 135C Note: 7. Datasheet specifications are not guaranteed if junction temperature exceeds the maximum operating junction temperature. Table 6. Environmental Compliance Parameter Condition/Test Method Mechanical Shock MIL-STD-883F, Method 2002 Mechanical Vibration MIL-STD-883F, Method 2007 Temperature Cycle JESD22, Method A104 Solderability MIL-STD-883F, Method 2003 Moisture Sensitivity Level MSL1 @ 260C Rev. 1.01 Page 2 of 12 www.sitime.com SiT8924 Automotive AEC-Q100 Oscillator The Smart Timing Choice The Smart Timing Choice Test Circuit and Waveform[8] Vdd Vout 0.1F tr 3 4 Power Supply Test Point 1 tf 80% Vdd 15pF (including probe and fixture capacitance) 2 50% 20% Vdd High Pulse (TH) Low Pulse (TL) Period Vdd 1k OE/NC Function Figure 2. Test Circuit Figure 3. Waveform Note: 8. Duty Cycle is computed as Duty Cycle = TH/Period. Timing Diagrams u 90% Vdd Vdd Vdd 50% Vdd T_start Pin 4 Voltage [9] No Glitch during start up OE Voltage T_oe CLK Output CLK Output HZ HZ T_start: Time to start from power-off T_oe: Time to re-enable the clock output Figure 4. Startup Timing (OE Mode) Figure 5. OE Enable Timing (OE Mode Only) Vdd OE Voltage 50% Vdd T_oe CLK Output HZ T_oe: Time to put the output in High Z mode Figure 6. OE Disable Timing (OE Mode Only) Note: 9 SiT8924 has "no runt" pulses and "no glitch" output during startup or resume. Rev. 1.01 Page 3 of 12 www.sitime.com SiT8924 Automotive AEC-Q100 Oscillator The Smart Timing Choice The Smart Timing Choice Performance Plots[10] 1.8 V 2.5 V 2.8 V 3V DUT 1 DUT 2 DUT 3 DUT 4 DUT 5 DUT 6 DUT 7 DUT 8 DUT 9 DUT 10 25 3.3 V 20 6.0 15 Frequency (ppm) Idd (mA) 5.5 5.0 4.5 4.0 10 ) m 5 p p ( y 0 c n e u q re 5 F 10 15 3.5 20 3.0 0 20 40 60 80 100 25 55 Frequency (MHz) 2.5 V 2.8 V 15 5 25 45 65 85 105 125 Tem p er atur e(C) ( C) Temperature Figure 7. Idd vs Frequency 1.8 V 35 3.0 V Figure 8. Frequency vs Temperature 1.8 V 3.3 V 2.5 V 2.8 V 3.0 V 3.3 V 55 4.0 53 3.0 Duty cycle (%) RMS period jitter (ps) 54 3.5 2.5 2.0 1.5 1.0 52 51 50 49 48 47 0.5 46 0.0 0 20 40 60 80 45 100 0 20 40 Frequency (MHz) Figure 9. RMS Period Jitter vs Frequency 2.5 V 2.8 V 3.0 V 1.8 V 3.3 V 2.5 2.5 2.0 2.0 1.5 1.0 100 2.5 V 2.8 V 3.0 V 3.3 V 1.5 1.0 0.5 0.5 0.0 0.0 -55 -35 -15 5 25 45 65 85 105 125 Temperature (C) -55 -35 -15 5 25 45 65 85 105 125 Temperature (C) Figure 11. 20%-80% Rise Time vs Temperature Rev. 1.01 80 Figure 10. Duty Cycle vs Frequency Fall time (ns) Rise time (ns) 1.8 V 60 Frequency (MHz) Figure 12. 20%-80% Fall Time vs Temperature Page 4 of 12 www.sitime.com SiT8924 Automotive AEC-Q100 Oscillator The Smart Timing Choice The Smart Timing Choice Performance Plots[10] 2.5 V 2.8 V 3.0 V 3.3 V 1.8 V 2.5 V 2.8 V 3.0 V 3.3 V 1 0.9 0.8 IPJ (ps) IPJ (ps) 1.8 V 2 1.9 1.8 1.7 )s 1.6 (p1.5 J P I 1.4 1.3 1.2 1.1 1 )s 0.7 (p J P I 0.6 0.5 0.4 0.3 10 30 50 70 90 110 10 Frequency (MHz) Frequency (MHz) 30 50 70 90 110 Frequency (MHz) Frequency (MHz) Figure 13. RMS Integrated Phase Jitter Random (12 kHz to 20 MHz) vs Frequency[11] Figure 14. RMS Integrated Phase Jitter Random (900 kHz to 7.5 MHz) vs Frequency[11] Notes: 10. All plots are measured with 15 pF load at room temperature, unless otherwise stated. 11. Phase noise plots are measured with Agilent E5052B signal source analyzer. Integration range is up to 5 MHz for carrier frequencies up to 40 MHz. Rev. 1.01 Page 5 of 12 www.sitime.com SiT8924 Automotive AEC-Q100 Oscillator The Smart Timing Choice The Smart Timing Choice Programmable Drive Strength The SiT8924 includes a programmable drive strength feature to provide a simple, flexible tool to optimize the clock rise/fall time for specific applications. Benefits from the programmable drive strength feature are: The SiT8924 can support up to 60 pF in maximum capacitive loads with drive strength settings. Refer to the Rise/Tall Time Tables (Table 7 to 11) to determine the proper drive strength for the desired combination of output load vs. rise/fall time SiT8924 Drive Strength Selection * Improves system radiated electromagnetic interference (EMI) by slowing down the clock rise/fall time. * Improves the downstream clock receiver's (RX) jitter by decreasing (speeding up) the clock rise/fall time. * Ability to drive large capacitive loads while maintaining full swing with sharp edge rates. For more detailed information about rise/fall time control and drive strength selection, see the SiTime Application Notes section: http://www.sitime.com/support/application-notes. Tables 7 through 11 define the rise/fall time for a given capacitive load and supply voltage. EMI Reduction by Slowing Rise/Fall Time Figure 15 shows the harmonic power reduction as the rise/fall times are increased (slowed down). The rise/fall times are expressed as a ratio of the clock period. For the ratio of 0.05, the signal is very close to a square wave. For the ratio of 0.45, the rise/fall times are very close to near-triangular waveform. These results, for example, show that the 11th clock harmonic can be reduced by 35 dB if the rise/fall edge is increased from 5% of the period to 45% of the period. 4. The left-most column represents the part number code for the corresponding drive strength. 1. Select the table that matches the SiT8924 nominal supply voltage (1.8V, 2.5V, 2.8V, 3.0V, 3.3V). 2. Select the capacitive load column that matches the application requirement (5 pF to 60 pF) 3. Under the capacitive load column, select the desired rise/fall times. 5. Add the drive strength code to the part number for ordering purposes. Calculating Maximum Frequency Based on the rise and fall time data given in Tables 7 through 11, the maximum frequency the oscillator can operate with guaranteed full swing of the output voltage over temperature can be calculated as follows: trise=0.05 trise=0.1 trise=0.15 trise=0.2 10 Harmonic amplitude (dB) 0 M a x F re q u e n c y = trise=0.25 trise=0.3 trise=0.35 trise=0.4 trise=0.45 -10 -20 where Trf_20/80 is the typical value for 20%-80% rise/fall time. -30 Example 1 -40 -50 Calculate fMAX for the following condition: -60 -70 -80 1 5 x T rf_ 2 0 /8 0 1 3 5 7 9 11 Harm onic num ber Figure 15. Harmonic EMI reduction as a Function of Slower Rise/Fall Time Jitter Reduction with Faster Rise/Fall Time Power supply noise can be a source of jitter for the downstream chipset. One way to reduce this jitter is to speed up the rise/fall time of the input clock. Some chipsets may also require faster rise/fall time in order to reduce their sensitivity to this type of jitter. Refer to the Rise/Fall Time Tables (Table 7 to Table 11) to determine the proper drive strength. * Vdd = 1.8V (Table 7) * Capacitive Load: 30 pF * Desired Tr/f time = 3 ns (rise/fall time part number code = E) Part number for the above example: SiT8924AIE12-18E-66.666660 Drive strength code is inserted here. Default setting is "-" High Output Load Capability The rise/fall time of the input clock varies as a function of the actual capacitive load the clock drives. At any given drive strength, the rise/fall time becomes slower as the output load increases. As an example, for a 3.3V SiT8924 device with default drive strength setting, the typical rise/fall time is 1ns for 15 pF output load. The typical rise/fall time slows down to 2.6 ns when the output load increases to 45 pF. One can choose to speed up the rise/fall time to 1.83 ns by then increasing the drive strength setting on the SiT8924. Rev. 1.01 Page 6 of 12 www.sitime.com SiT8924 Automotive AEC-Q100 Oscillator The Smart Timing Choice The Smart Timing Choice Rise/Fall Time (20% to 80%) vs CLOAD Tables Table 7. Vdd = 1.8V Rise/Fall Times for Specific CLOAD Table 8. Vdd = 2.5V Rise/Fall Times for Specific CLOAD Rise/Fall Time Typ (ns) Rise/Fall Time Typ (ns) Drive Strength \ CLOAD 5 pF 15 pF 30 pF 45 pF 60 pF Drive Strength \ CLOAD 5 pF 15 pF 30 pF 45 pF 60 pF L A R B T E U F or "": default 6.16 3.19 2.11 1.65 0.93 0.78 0.70 0.65 11.61 6.35 4.31 3.23 1.91 1.66 1.48 1.30 22.00 11.00 7.65 5.79 3.32 2.94 2.64 2.40 31.27 16.01 10.77 8.18 4.66 4.09 3.68 3.35 39.91 21.52 14.47 11.08 6.48 5.74 5.09 4.56 L A R B T E or "": default U F 4.13 2.11 1.45 1.09 0.62 8.25 4.27 2.81 2.20 1.28 12.82 7.64 5.16 3.88 2.27 21.45 11.20 7.65 5.86 3.51 27.79 14.49 9.88 7.57 4.45 0.54 0.43 0.34 1.00 0.96 0.88 2.01 1.81 1.64 3.10 2.79 2.54 4.01 3.65 3.32 Table 9. Vdd = 2.8V Rise/Fall Times for Specific CLOAD Table 10. Vdd = 3.0V Rise/Fall Times for Specific CLOAD Rise/Fall Time Typ (ns) Rise/Fall Time Typ (ns) Drive Strength \ CLOAD 5 pF 15 pF 30 pF 45 pF 60 pF Drive Strength \ CLOAD 5 pF 15 pF 30 pF 45 pF 60 pF L A R B T 3.77 1.94 1.29 0.97 0.55 7.54 3.90 2.57 2.00 1.12 12.28 7.03 4.72 3.54 2.08 19.57 10.24 7.01 5.43 3.22 25.27 13.34 9.06 6.93 4.08 E or "": default U F 0.44 0.34 0.29 1.00 0.88 0.81 1.83 1.64 1.48 2.82 2.52 2.29 3.67 3.30 2.99 L A R B T or "": default E U F 3.60 1.84 1.22 0.89 0.51 0.38 0.30 0.27 7.21 3.71 2.46 1.92 1.00 0.92 0.83 0.76 11.97 6.72 4.54 3.39 1.97 1.72 1.55 1.39 18.74 9.86 6.76 5.20 3.07 2.71 2.40 2.16 24.30 12.68 8.62 6.64 3.90 3.51 3.13 2.85 Table 11. Vdd = 3.3V Rise/Fall Times for Specific CLOAD Rise/Fall Time Typ (ns) Drive Strength \ CLOAD 5 pF 15 pF 30 pF 45 pF 60 pF L A R B 3.39 1.74 1.16 0.81 6.88 3.50 2.33 1.82 11.63 6.38 4.29 3.22 17.56 8.98 6.04 4.52 23.59 12.19 8.34 6.33 T or "": default E U F 0.46 0.33 0.28 0.25 1.00 0.87 0.79 0.72 1.86 1.64 1.46 1.31 2.60 2.30 2.05 1.83 3.84 3.35 2.93 2.61 Rev. 1.01 Page 7 of 12 www.sitime.com SiT8924 Automotive AEC-Q100 Oscillator The Smart Timing Choice The Smart Timing Choice Pin 1 Configuration Options (OE or NC) Pin 1 of the SiT8924 can be factory-programmed to support two modes: Output Enable (OE) or No Connect (NC). is enabled as shown in the waveform captures in Figure 16 and Figure 17. Output Enable (OE) Mode In the OE mode, applying logic low to the OE pin only disables the output driver and puts it in Hi-Z mode. The core of the device continues to operate normally. Power consumption is reduced due to the inactivity of the output. When the OE pin is pulled High, the output is typically enabled in <1s. No Connect (NC) Mode In the NC mode, the device always operates in its normal mode and output the specified frequency regardless of the logic level on pin 1. Table 12 below summarizes the key relevant parameters in the operation of the device in OE or NC mode. Figure 16. Startup Waveform vs. Vdd Table 12. OE vs. NC OE NC Active current 20 MHz (max, 1.8V) 4.5 mA 4.5 mA OE disable current (max. 1.8V) 3.8 mA N/A OE enable time at 110 MHz (max) 130 ns N/A Output driver in OE disable High Z N/A Output on Startup and OE Enable The SiT8924 comes with gated output. Its clock output is accurate to the rated frequency stability within the first pulse from initial device startup or when the output driver is enabled. In addition, the SiT8924 supports "no runt" pulses and "no glitch" output during startup or when the device output driver Rev. 1.01 Page 8 of 12 Figure 17. Startup Waveform vs. Vdd (Zoomed-in View of Figure 16) www.sitime.com SiT8924 Automotive AEC-Q100 Oscillator The Smart Timing Choice The Smart Timing Choice Dimensions and Patterns Package Size - Dimensions (Unit: mm)[12] Recommended Land Pattern (Unit: mm)[13] 2.0 x 1.6 x 0.75 mm 2.5 x 2.0 x 0.75 mm 1.9 2.2 2.5 0.05 #3 #2 #2 1.5 1.9 1.0 1.2 #1 0.5 YXXXX #4 1.1 #3 2.0 0.05 #4 1.00 #1 0.75 0.05 0.75 1.4 1.1 3.2 x 2.5 x 0.75 mm 3.2 0.05 #3 #4 0.7 1.9 0.9 #2 #1 0.9 0.75 0.05 #2 1.2 YXXXX #1 2.2 2.1 #3 2.5 0.05 #4 1.4 5.0 x 3.2 x 0.75 mm 2.54 5.0 0.05 Rev. 1.01 #2 #4 #2 #1 2.2 1.1 1.6 #1 0.75 0.05 YXXXX #3 0.8 #3 3.2 0.05 #4 2.39 1.15 1.5 Page 9 of 12 www.sitime.com SiT8924 Automotive AEC-Q100 Oscillator The Smart Timing Choice The Smart Timing Choice Dimensions and Patterns 0 Package Size - Dimensions (Unit: mm)[12] Recommended Land Pattern (Unit: mm)[13] 7.0 x 5.0 x 0.90 mm 5.08 3.81 2.6 5.08 0.90 0.10 2.0 1.1 YXXXX 5.0 0.05 7.0 0.05 1.4 2.2 Notes: 12. Top marking: Y denotes manufacturing origin and XXXX denotes manufacturing lot number. The value of "Y" will depend on the assembly location of the device. 13. A capacitor of value 0.1 F or higher between Vdd and GND is required. Rev. 1.01 Page 10 of 12 www.sitime.com SiT8924 Automotive AEC-Q100 Oscillator The Smart Timing Choice The Smart Timing Choice Ordering Information The Part No. Guide is for reference only. To customize and build an exact part number, use the SiTime Part Number Generator. SiT8924AA -12-18E - 6 6 .666666D Packing Method Part Family "SiT8924" "T": 12 mm Tape & Reel, 3ku reel "Y": 12 mm Tape & Reel, 1ku reel "D": 8 mm Tape & Reel, 3ku reel "E": 8 mm Tape & Reel, 1ku reel Blank for Bulk Revision Letter "A" is the revision Frequency Refer to the Supported Frequencies Tables below Temperature Range "E" Ext. Industrial -40C to 105C "A" Automotive -40C to 125C "M" Automotive -55C to 125C Feature Pin "E" for Output Enable "N" for No Connect Output Drive Strength "-" Default (datasheet limits) See Tables 7 to 11 for rise/fall times "L" "A" "R" "B" Supply Voltage[13] "18" for 1.8V 10% "25" for 2.5V 10% "28" for 2.8V 10% "30" for 3.0V 10% "33" for 3.3V 10% "XX" for 2.25V to 3.63V "T" "E" "U" "F" Package Size "7" 2.0 x 1.6 mm "1" 2.5 x 2.0 mm "2" 3.2 x 2.5 mm "3" 5.0 x 3.2 mm "8" 7.0 x 5.0 mm Frequency Stability "2" for 25 ppm "8" for 30 ppm "3" for 50 ppm Note: 13. The voltage portion of the SiT8924 part number consists of two characters that denote the specific supply voltage of the device. The SiT8924 supports either 1.8V 10% or any voltage between 2.25V and 3.62V. In the 1.8V mode, one can simply insert 18 in the part number. In the 2.5V to 3.3V mode, two digits such as 18, 25 or 33 can be used in the part number to reflect the desired voltage. Alternatively, "XX" can be used to indicate the entire operating voltage range from 2.25V to 3.63V. Table 13. Supported Frequencies Table 14. Supported Frequencies (-40C to 105C or -40C to 125C)[14, 15] (-55C to 125C)[14, 15] Frequency Range Frequency Range Min. Max. Min. Max. 1.000000 MHz 61.222999 MHz 1.000000 MHz 61.222999 MHz 61.674001 MHz 69.795999 MHz 61.674001 MHz 69.239999 MHz 70.485001 MHz 79.062999 MHz 70.827001 MHz 78.714999 MHz 79.162001 MHz 81.427999 MHz 79.561001 MHz 80.159999 MHz 82.232001 MHz 91.833999 MHz 80.174001 MHz 80.779999 MHz 92.155001 MHz 94.248999 MHz 82.632001 MHz 91.833999 MHz 94.430001 MHz 94.874999 MHz 95.474001 MHz 96.191999 MHz 94.994001 MHz 97.713999 MHz 96.209001 MHz 96.935999 MHz 98.679001 MHz 110.000000 MHz 99.158001 MHz 110.000000 MHz Notes: 14. Any frequency within the min and max values in the above tables are supported with 6 decimal places of accuracy. 15. Please contact SiTime for frequencies that are not listed in the tables above. Table 15. Ordering Codes for Supported Tape & Reel Packing Method Device Size (mm x mm) 16 mm T&R (3ku) 16 mm T&R (1ku) 12 mm T&R (3ku) 12 mm T&R (1ku) 8 mm T&R (3ku) 2.0 x 1.6 - - - - D E 2.5 x 2.0 - - - - D E 3.2 x 2.5 - - - - D E 5.0 x 3.2 - - T Y - - 7.0 x 5.0 T Y - - - - Rev. 1.01 Page 11 of 12 8 mm T&R (1ku) www.sitime.com SiT8924 Automotive AEC-Q100 Oscillator The Smart Timing Choice The Smart Timing Choice Table 16. Additional Information Document Description Download Link Time Machine II MEMS oscillator programmer http://www.sitime.com/support/time-machine-oscillator-programmer Field Programmable Oscillators Devices that can be programmable in the field by Time Machine II http://www.sitime.com/products/field-programmable-oscillators Manufacturing Notes Tape & Reel dimension, reflow profile and other manufacturing related info http://www.sitime.com/component/docman/doc_download/243-manufacturing-notes-for-sitime-oscillators Qualification Reports RoHS report, reliability reports, composition reports http://www.sitime.com/support/quality-and-reliability Additional performance data such as phase noise, current consumption and jitter for selected frequencies http://www.sitime.com/support/performance-measurement-report Performance Reports Termination Techniques Termination design recommendations http://www.sitime.com/support/application-notes Layout Techniques Layout recommendations http://www.sitime.com/support/application-notes Revision History Table 17. Datasheet Version and Change Log Version Release Date 0.9 1/24/2013 Change Summary 0.95 11/28/13 * * * * * * * * * * * * 0.96 1/24/14 * Added 30 ppm * Additional corrections in spelling and grammar. 0.97 1/28/14 * Added support for -55C to 125C 1.0 5/28/15 * Final production release * Revised Timing Diagrams * Fixed error link * Revised 2016 package diagram 1.01 6/18/15 * Added 16 mm T&R information to Table 15 * Revised 12 mm T&R information to Table 15 Preliminary Added supported frequency table Added 20 ppm option Added No Connect (NC) option for pin 1 Updated thermal consideration table Added Maximum Operating Junction Temperature table Added timing diagram, test circuits and waveform diagrams Added performance plots Added programmable drive strength options Added pin 1 option section (OE vs NC) Updated order info section Added revision history Added LifeTime Warranty icon in the feature section (c) SiTime Corporation 2015. 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Rev. 1.01 Page 12 of 12 www.sitime.com The Smart Timing Choice The Smart Timing Choice Supplemental Information The Supplemental Information section is not part of the datasheet and is for informational purposes only. SiTime Corporation 990 Almanor Avenue, Sunnyvale, CA 94085 (408) 328-4400 www.sitime.com The Smart Timing Choice The Smart Timing Choice Silicon MEMS Outperforms Quartz SiTime Corporation Silicon MEMS Outperforms Quartz Rev. 1.1 990 Almanor Avenue, Sunnyvale, CA 94085 (408) 328-4400 www.sitime.com Revised October 5, 2013 Silicon MEMS Outperforms Quartz The Smart Timing Choice The Smart Timing Choice Best Reliability Best Electro Magnetic Susceptibility (EMS) Silicon is inherently more reliable than quartz. Unlike quartz suppliers, SiTime has in-house MEMS and analog CMOS expertise, which allows SiTime to develop the most reliable products. Figure 1 shows a comparison with quartz technology. SiTime's oscillators in plastic packages are up to 54 times more immune to external electromagnetic fields than quartz oscillators as shown in Figure 3. Why is SiTime Best in Class: * SiTime's MEMS resonators are vacuum sealed using an advanced EpiSealTM process, which eliminates foreign particles and improves long term aging and reliability * World-class MEMS and CMOS design expertise Why is SiTime Best in Class: * Internal differential architecture for best common mode noise rejection * Electrostatically driven MEMS resonator is more immune to EMS SiTime vs Quartz Electro Magnetic Susceptibility (EMS) Mean Time Between Failure (Million Hours) - 30 - 39 500 IDT (Fox) 38 SiTime 20X Better 28 Epson TXC 16 Pericom 14 Average Spurs (dB) SiTime - 40 - 40 - 42 - 43 - 45 - 50 - 60 SiTime 54X Better - 70 - 73 - 80 - 90 200 0 Kyocera 600 400 Figure 1. Reliability Comparison[1] Epson TXC CW SiLabs SiTime Figure 3. Electro Magnetic Susceptibility (EMS)[3] Best Aging Best Power Supply Noise Rejection Unlike quartz, MEMS oscillators have excellent long term aging performance which is why every new SiTime product specifies 10-year aging. A comparison is shown in Figure 2. SiTime's MEMS oscillators are more resilient against noise on the power supply. A comparison is shown in Figure 4. * SiTime's MEMS resonators are vacuum sealed using an advanced EpiSeal process, which eliminates foreign particles and improves long term aging and reliability * Inherently better immunity of electrostatically driven MEMS resonator SiTime MEMS vs. Quartz Aging 10 SiTime MEMS Oscillator Quartz Oscillator 8.0 Aging (PPM) 8 SiTime 2X Better 6 4 2 0 3.0 3.5 1.5 1-Year 10-Year Figure 2. Aging Comparison[2] Silicon MEMS Outperforms Quartz Rev. 1.1 Why is SiTime Best in Class: * On-chip regulators and internal differential architecture for common mode noise rejection * Best analog CMOS design expertise Additive Integrated Phase Jitter per mVp-p Injected Noise (ps/mv) Why is SiTime Best in Class: Power Supply Noise Rejection SiTIme 5.0 NDK Epson Kyocera 4.0 3.0 2.0 SiTime SiTime 3X Better 1.0 0.0 10 100 1,000 Power Supply Noise Frequency (kHz) 10,000 Figure 4. Power Supply Noise Rejection[4] www.sitime.com Silicon MEMS Outperforms Quartz The Smart Timing Choice The Smart Timing Choice Best Vibration Robustness Best Shock Robustness High-vibration environments are all around us. All electronics, from handheld devices to enterprise servers and storage systems are subject to vibration. Figure 5 shows a comparison of vibration robustness. SiTime's oscillators can withstand at least 50,000 g shock. They all maintain their electrical performance in operation during shock events. A comparison with quartz devices is shown in Figure 6. Why is SiTime Best in Class: Why is SiTime Best in Class: * The moving mass of SiTime's MEMS resonators is up to 3000 times smaller than quartz * Center-anchored MEMS resonator is the most robust design * The moving mass of SiTime's MEMS resonators is up to 3000 times smaller than quartz * Center-anchored MEMS resonator is the most robust design Vibration Sensitivity (ppb/g) TXC Epson Connor Winfield Kyocera SiLabs 100.00 10.00 1.00 SiTime Up to 30x Better 0.10 10 100 Vibration Frequency (Hz) Figure 5. Vibration Robustness[5] 1000 Peak Frequency Deviation (PPM) Vibration Sensitivity vs. Frequency SiTime 16 14 Differential XO Shock Robustness - 500 g 14.3 12.6 12 10 8 SiTime Up to 25x Better 6 3.9 4 2.9 2.5 2 0.6 0 Kyocera Epson TXC CW SiLabs SiTime Figure 6. Shock Robustness[6] Notes: 1. Data Source: Reliability documents of named companies. 2. Data source: SiTime and quartz oscillator devices datasheets. 3. Test conditions for Electro Magnetic Susceptibility (EMS): * According to IEC EN61000-4.3 (Electromagnetic compatibility standard) * Field strength: 3V/m * Radiated signal modulation: AM 1 kHz at 80% depth * Carrier frequency scan: 80 MHz - 1 GHz in 1% steps * Antenna polarization: Vertical * DUT position: Center aligned to antenna Devices used in this test: SiTime, SiT9120AC-1D2-33E156.250000 - MEMS based - 156.25 MHz Epson, EG-2102CA 156.2500M-PHPAL3 - SAW based - 156.25 MHz TXC, BB-156.250MBE-T - 3rd Overtone quartz based - 156.25 MHz Kyocera, KC7050T156.250P30E00 - SAW based - 156.25 MHz Connor Winfield (CW), P123-156.25M - 3rd overtone quartz based - 156.25 MHz SiLabs, Si590AB-BDG - 3rd overtone quartz based - 156.25 MHz 4. 50 mV pk-pk Sinusoidal voltage. Devices used in this test: SiTime, SiT8208AI-33-33E-25.000000, MEMS based - 25 MHz NDK, NZ2523SB-25.6M - quartz based - 25.6 MHz Kyocera, KC2016B25M0C1GE00 - quartz based - 25 MHz Epson, SG-310SCF-25M0-MB3 - quartz based - 25 MHz 5. Devices used in this test: same as EMS test stated in Note 3. 6. Test conditions for shock test: * MIL-STD-883F Method 2002 * Condition A: half sine wave shock pulse, 500-g, 1ms * Continuous frequency measurement in 100 s gate time for 10 seconds Devices used in this test: same as EMS test stated in Note 3 7. Additional data, including setup and detailed results, is available upon request to qualified customers. Please contact productsupport@sitime.com. Silicon MEMS Outperforms Quartz Rev. 1.1 www.sitime.com Document Feedback Form The Smart Timing Choice The Smart Timing Choice SiTime values your input in improving our documentation. Click here for our online feedback form or fill out and email the form below to productsupport@sitime.com. 1. Does the Electrical Characteristics table provide complete information? Yes No If No, what parameters are missing? _________________________________________________________________________________________________ 2. Is the organization of this document easy to follow? Yes No If "No," please suggest improvements that we can make: _________________________________________________________________________________________________ 3. Is there any application specific information that you would like to see in this document? (Check all that apply) EMI Termination recommendations Shock and vibration performance Other If "Other," please specify: _________________________________________________________________________________________________ 4. Are there any errors in this document? Yes No If "Yes", please specify (what and where): _________________________________________________________________________________________________ 5. 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