SiT8004 Low Power Oscillator for High Frequency Applications Features, Benefits and Applications Lowest power, high frequency oscillator with 6.3 mA typical active current 125MHz to 150MHz frequency range LVCMOS/LVTTL compatible output Excellent frequency stability over temperature, 20 PPM Ultra low standby current, 1.2 A Standby or output enable modes Four industry-standard packages: 2.5 x 2.0, 3.2 x 2.5, 5.0 x 3.2, 7.0 x 5.0 mm Drop-in replacement of quartz Ultra short lead time All-silicon device with outstanding reliability of 2 FIT (10x improvement over quartz-based devices), enhancing system mean-time-to-failure (MTBF) Ideal for high frequency applications in networking, storage, computer servers and communications Ideal for high speed protocals: GPON, EPON, Ethernet, SATA/SAS, DDR, PCI Specifications Electrical Characteristics Parameter Symbol Min. Typ. Max. Unit Condition Output Frequency Range f 125 - 150 MHz Frequency Stability F stab -20 +20 PPM Inclusive of: Initial stability, operating temperature, rated power, supply voltage change, load change, shock and vibration -25 +25 PPM -50 +50 PPM 20 PPM available in extended commercial temperature only Aging Ag 1.0 1.0 PPM 1st year at 25C Operating Temperature Range T use -20 +70 C Extended Commercial -40 +85 C Industrial Supply Voltage Vdd 2.25 2.5 2.75 V 2.52 2.8 3.08 V 2.97 3.3 3.63 V Current Consumption Idd 6.7 8 mA No load condition, f = 125 MHz, Vdd = 3.3 V 6.2 7 mA No load condition, f = 125 MHz, Vdd = 2.5 V or 2.8 V Standby Current I std 2.4 4.3 A ST = GND, Vdd = 3.3 V, Output is Weakly Pulled Down 1.2 2.2 A ST = GND, Vdd = 2.5 or 2.8 V, Output is Weakly Pulled Down Duty Cycle DC 40 50 60 % All Vdds Rise/Fall Time Tr, Tf 1 2 ns 20% - 80% Vdd=2.5 V, 2.8 V or 3.3 V, 15 pf load Output Voltage High VOH 90% Vdd IOH = -4 mA (Vdd = 3.3 V) IOH = -3 mA (Vdd = 2.8 V and Vdd = 2.5 V) Output Voltage Low VOL 10% Vdd IOL = 4 mA (Vdd = 3.3 V) IOL = 3 mA (Vdd = 2.8 V and Vdd = 2.5 V) Output Load Ld 15 pF At 125MHz and max supply voltage. Contact SiTime for higher output load option Input Voltage High VIH 70% Vdd Pin 1, OE or ST Input Voltage Low VIL 30% Vdd Pin 1, OE or ST Startup Time T start 10 ms Measured from the time Vdd reaches its rated minimum value Resume Time T resume 3.0 3.8 ms Measured from the time ST pin crosses 50% threshold RMS Period Jitter T jitt 4.5 ps f = 125 MHz, Vdd = 2.5 V, 2.8 V or 3.3 V RMS Phase Jitter (random) T phj 0.5 ps f = 125 MHz, Integration bandwidth = 900 kHz to 7.5 MHz, VDD = 2.5 V, 2.8 V, or 3.3 V SiTime Corporation 990 Almanor Avenue Sunnyvale, CA 94085 (408) 328-4400 www.sitime.com Rev. 1.0 Revised November 11, 2010 SiT8004 Low Power Oscillator for High Frequency Applications Specifications (Cont.) Pin Description Tables Pin 1 Functionality Pin Map OE Pin Connection H or Open: specified frequency output 1 OE/ST L: output is high impedance 2 GND ST 3 CLK H or Open: specified frequency output 4 VDD L: output is low level (weak pull down). Oscillation stops Absolute Maximum Table Attempted operation outside the absolute maximum ratings of the part may cause permanent damage to the part. Actual performance of the IC is only guaranteed within the operational specifications, not at absolute maximum ratings. Parameter Min. Max. Unit Storage Temperature -65 150 C VDD -0.5 4 V Electrostatic Discharge 2000 V Theta JA (with copper plane on VDD and GND) 75 C/W Theta JC (with PCB traces of 0.010 inch to all pins) 24 C/W Soldering Temperature (follow standard Pb free soldering guidelines) 260 C Number of Program Writes 1 NA Program Retention over -40 to 125C, Process, VDD (0 to 3.65 V) 1,000+ years 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 Startup and Resume Timing Diagram Vdd ST Voltage Vdd 90% Vdd Pin 4 Voltage 50% Vdd T resume T start CLK Output CLK Output T resume: Time to resume from ST T start: Time to start from power-off (ST Mode Only) (ST/OE Mode) Rev. 1.0 Page 2 of 4 www.sitime.com