Ultra-miniature, Low Power, kHz MEMS Oscillator

Transcription

1 ESD Sensitive Moisture Sensitivity Level (MSL) 1 FEATURES: APPLICATIONS: Factory programmable output frequency: 1Hz to kHz Available in two types of ultra-miniature packages: 2.0 x 1.2 x 0.6mm (SMD); 1.54 x 0.84 x 0.6mm (CSP) Supply oltage: 1.2 to 3.63 (-10 ~ +70); 1.5 to 3.63 (-40 ~ +85) Ultra-Low Current Consumption: 1.4µA max. (core current, no load) Frequency Stabilities include: ±75ppm over -10 to +70, ±100ppm over -40 to +85 Internal power supply filtering eliminates external bypass capacitor for dd port. High Performance MEMS Technology by SiTime Proprietary NanoDriveTM Technology by SiTime enables programmable output swing for lower power Timekeeping Battery Management Mobile devices RTC reference clock Wireless accessories Fitness/Medical monitoring sensors Sport video cams STANDARD SPECIFICATIONS: Parameters Output Frequency Range (Fout) Initial Frequency Tolerance (Ftol) (1)(5) Frequency Stability over Temperature (Fstab) (2) Aging (@+25) Supply oltage (dd) Min Typ Max Unit Hz ppm ppm ppm 1.3 Core Operating Current ( Idd ) (3) µa 1.4 Output Stage Operating Current ( Idd out ) (3) Power Supply Ramp (tdd_ramp) Start-up Time (Tstart) (4) Operating Temperature Range (Tuse) Period Jitter µa/pp period period ms ms 35 nsrms LCMOS Output Option ( TA= -40 to +85. Typical values are at TA= +25) Output Rise/Fall Time (tr/tf) Output Clock Duty Cycle OH 90%*dd Output oltage OL 10%*dd NanoDriveTM (6) Programmable, Reduced Swing Output Option Output Rise/Fall Time (tr/tf) 200 Output Clock Duty Cycle AC-coupled Programmable Output Swing (SW) 0.20 to 0.80 ns % ns % Notes Factory programmed between 1Hz and kHz, in the powers of 2 TA= +25, post reflow, dd: TA= -10 to +70, dd: TA= -40 to +85, dd: TA= -10 to +70, dd: First year TA= -10 to +70 TA= -40 to +85 TA= +25, dd: 1.8. No load. TA= -10 to +70, dd max: No load TA= -40 to +85, dd max: No load. TA= -40 to +85, dd max: No load. TA= -40 to +85, 0 to 90%*dd TA= +25±10, valid output TA= -40 to +85, valid output Option M Option L Cycles=10000, TA= +25, dd: %(dd), 15pF load, dd: dd: IOH= -10µA, 15pF dd: IOL= 10µA, 15pF 30-70%(OL/ OH), 10pF load does not internally ACcouple. This output description is intended for a receiver that is ACcoupled. See Part Identification section for available AC-coupled signal swing options. dd: pF load, IOH/ IOL =±0.2µA isit for Terms and Conditions of Sale

2 (Continued) Parameters Min Typ Max Unit DC-biased Programmable Output oltage High Range (OH) 0.60 to DC-biased Programmable Output oltage Low Range (OL) 0.35 to 0.80 Programmable Output oltage Swing Tolerance Note: Notes dd: IOH =-0.2µA.10pF load. See Part Identification section for available OH/ OL levels. dd: IOL =0.2µA.10pF load. See Part Identification section for available OH/ OL levels. TA= -40 to +85, dd: Measured peak-to-peak. Tested with Agilent 53132A frequency counter. Due to the low operating frequency, the gate time must be 100ms to ensure an accurate frequency measurement. Stability is specified for two operating voltage ranges. Stability progressively degrades with supply voltage below 1.5. Measured peak-to-peak. Inclusive of initial tolerance at +25, and variations over operating temperature, rated power supply voltage and load. Core operating current does not include output driver operating current or load current. To derive total operating current (no load), add core operating current + output driver operating current, where output driver operating current = Cdriver*out*Fout. Measured from the time dd reaches 1.5. Board-level underfill (BLUF) is not recommended for 1508 CSP package as it will cause a shift in the frequency tolerance. NanoDriveTM is a SiTime trademark. Absolute Maximum Ratings 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. Parameters Continuous Power Supply oltage Range (dd) Short Duration Max. Power Supply oltage (dd) Continuous Maximum Operating Temperature Range Short Duration Max. Operating Temperature Range Human Body Model (HBM) ESD Protection Charge-Device Model (CDM) ESD Protection Machine Model (MM) ESD Protection Latch-up Tolerance Mechanical Shock Resistance Mechanical ibration Resistance 2012 SMD Junction Temperature 1508 CSP Junction Temperature Storage Te mperature Test Condition alue -0.5 to minutes 105 dd: dd: , 30 minutes JESD22-A JESD22-C JESD22-A JESD78 Compliant Mil 883, Method Mil 883, Method to +150 Unit g g isit for Terms and Conditions of Sale

3 Block Diagram PART IDENTIFICATION: - Output Frequency (khz) Operating Temp. M: -10 ~ +70 L: -40 ~ +85 khz - - Freq. Stability P: ±75ppm (-10 ~ +70 only) Q: ±100 ppm (-40 ~ +85 only) - - Package Type J: CSP (1.5 x 0.8mm) H: SMD (2.0 x 1.2mm) Packaging Blank: Bulk T: Tape & Reel (1kpcs / reel) T3: Tape & Reel (3kpcs / reel) T10: Tape & Reel (10kpcs / reel) Output Level Option DCC: Rail-to-Rail LCMOS AA3: AC-coupled signal, swing level: 0.3 min. D14: DC-coupled signal, OL: max, OH: min D26: DC-coupled signal, OL: max, OH: min isit for Terms and Conditions of Sale

4 Typical Performance Data (TA=25, dd=1.8, unless otherwise stated) Initial Tolerance Histogram Frequency Stability vs. Operating Temperature Range Core Current vs Operating Temperature Range Output Stage Current vs Operating Temperature Range kHz Start-up Time isit for Terms and Conditions of Sale

5 Typical Performance Data (TA=25, dd=1.8, unless otherwise stated)---(continued) Power Supply Noise Rejection (±150m Noise) LCMOS Output Waveform (swing = 1.8) NanoDriveTM Output Waveform (OH = 1.1, OL = 0.4) REFLOW PROFILE: Item TS MAX to TL (Ramp-up Rate) Conditions 3/second max Preheat Temperature Minimum (TS MIN) 150 Temperature Typical (TS TYP) 175 Temperature Maximum (TS MAX) 200 Time (ts) seconds Ramp-up Rate (TL to TP) 3/second max Time Maintained Above Temperature (TL) 217 Time (tl) seconds Peak Temperature (TP) 260 max Target Peak Temperature (TP Target) 255 Time within 5 of actual peak (tp) seconds Max. Number of Reflow Cycles 3 Ramp-down Rate 6/second max Time 25 to Peak Temperature (t) 8 minutes max isit for Terms and Conditions of Sale

6 OUTLINE DIMENSION: 2012 SMD package: Recommended Land Pattern Pin 1 Name NC I/O No Connect 2 GND Power Supply Ground 3 CLK Out OUT 4 dd Power Supply Functionality No connection. Will not respond to any input signal. Connect to ground. All GND pins must be connected to power supply ground. Oscillator clock output. Connect to power supply 1.5 dd 3.63 for operation over -40 to +85 temperature range. Under normal operating conditions, dd doesn t require external bypass/decoupling capacitor(s). Internal power supply filtering will reject more than ±150mpp with frequency components through 10MHz. Recommended Land Pattern 1508 CSP package: Pin Name I/O 1,4 GND Power Supply Ground 2 CLK Out OUT 3 dd Power Supply Functionality Connect to ground. Acceptable to connect pin 1 and 4 together. Both pins must be connected to GND. Oscillator clock output. Connect to power supply 1.2 dd Under normal operating conditions, dd doesn t require external bypass/decoupling capacitor(s). Internal power supply filtering will reject more than ±150mpp with frequency components through 10MHz. Dimensions: mm isit for Terms and Conditions of Sale

7 TAPE & REEL: Tape Dimensions for 2012 SMD package (Unit: mm) D0 1.55±0.05 T 0.25±0.05 D1 min. 1.0 T1 max. 0.1 E1 1.75±0.1 T2 max E2 min W max. 8.3 F 3.5±0.05 A0 1.9±0.05 P0 B0 2.3±0.05 P1 K0 1.0±0.1 P2 2.0±0.05 P1 K0 0.63±0.03 P2 2.0±0.05 Tape Dimensions for 1508 CSP package (Unit:mm) D0 1.55±0.05 T 0.20±0.02 D1 min T1 max. 0.1 Option T & T3 T10 A max E1 1.75±0.1 T2 max B min E2 min W max. 8.3 C / ±0.2 F 3.5±0.05 A0 0.96±0.03 D min T= Tape and reel (1,000pcs/reel) T3= Tape and reel (3,000pcs/reel) T10= Tape and reel (10,000pcs/reel) P0 B0 1.66±0.03 N 60± ±0.5 W / /-0 Unit: mm W2 max Unit: mm ATTENTION: Abracon Corporation s products are COTS Commercial-Off-The-Shelf products; suitable for Commercial, Industrial and, where designated, Automotive Applications. Abracon s products are not specifically designed for Military, Aviation, Aerospace, Life-dependant Medical applications or any application requiring high reliability where component failure could result in loss of life and/or property. For applications requiring high reliability and/or presenting an extreme operating environment, written consent and authorization from Abracon Corporation is required. Please contact Abracon Corporation for more information. isit for Terms and Conditions of Sale