SiT9120 Standard Frequency Differential Oscillator The Smart Timing Choice The Smart Timing Choice Features Applications 31 standard frequencies from 25 MHz to 212.5 MHz 10GB Ethernet, SONET, Synchronous Ethernet, SATA, SAS, Fibre Channel, PCI-Express LVPECL and LVDS output signaling types Telecom, networking, broadband, instrumentation 0.6 ps RMS phase jitter (random) over 12 kHz to 20 MHz bandwidth Frequency stability as low as 20 PPM Industrial and extended commercial temperature ranges Industry-standard packages: 3.2x2.5, 5.0x3.2 and 7.0x5.0 mmxmm For any other frequencies between 1 to 625 MHz, refer to SiT9121 and SiT9122 datasheet Electrical Characteristics Parameter and Conditions Symbol Min. Typ. Max. Unit Condition LVPECL and LVDS, Common AC Characteristics Output Frequency Range f 25 212.5 MHz See last page for list of standard frequencies F stab -20 +20 PPM Frequency Stability Inclusive of initial tolerance, operating temperature, rated power -25 +25 PPM supply voltage, and load variations -50 +50 PPM First Year Aging F aging1 -2 +2 PPM 25C 10-year Aging F aging10 -5 +5 PPM 25C T use -40 +85 C Industrial Operating Temperature Range -20 +70 C Extended Commercial Start-up Time T start 6 10 ms Measured from the time Vdd reaches its rated minimum value. In Standby mode, measured from the time ST pin crosses Resume Time T resume 6 10 ms 50% threshold. Duty Cycle DC 45 55 % Contact SiTime for tighter duty cycle LVPECL, DC and AC Characteristics Vdd 2.97 3.3 3.63 V Supply Voltage 2.25 2.5 2.75 V 2.25 3.63 V Termination schemes in Figures 1 and 2 - XX ordering code Current Consumption Idd 61 69 mA Excluding Load Termination Current, Vdd = 3.3V or 2.5V OE Disable Supply Current I OE 35 mA OE = Low Output Disable Leakage Current I leak 1 A OE = Low Standby Current I std 100 AST = Low, for all Vdds Maximum Output Current I driver 30 mA Maximum average current drawn from OUT+ or OUT- Output High Voltage VOH Vdd-1.1 Vdd-0.7 V See Figure 1 Output Low Voltage VOL Vdd-1.9 Vdd-1.5 V See Figure 1 Output Differential Voltage Swing V Swing 1.2 1.6 2.0 V See Figure 1 Rise/Fall Time Tr, Tf 300 500 ps 20% to 80% OE Enable/Disable Time T oe 115 ns f = 212.5 MHz - For other frequencies, T oe = 100ns + 3 period RMS Period Jitter T jitt 1.2 1.7 ps f = 100 MHz, VDD = 3.3V or 2.5V 1.2 1.7 ps f = 156.25 MHz, VDD = 3.3V or 2.5V 1.2 1.7 ps f = 212.5 MHz, VDD = 3.3V or 2.5V RMS Phase Jitter (random) T phj 0.6 0.85 ps f = 156.25 MHz, Integration bandwidth = 12 kHz to 20 MHz, all Vdds LVDS, DC and AC Characteristics Vdd 2.97 3.3 3.63 V Contact SiTime for 1.8V option Supply Voltage 2.25 2.5 2.75 V 2.25 3.63 V XX ordering code Current Consumption Idd 47 55 mA Excluding Load Termination Current, Vdd = 3.3V or 2.5V OE Disable Supply Current I OE 35 mA OE = Low Output Disable Leakage Current I leak 1 A OE = Low Standby Current I std 100 AST = Low, for all Vdds Differential Output Voltage VOD 200 350 500 mV See Figure 4 SiTime Corporation 990 Almanor Avenue Sunnyvale, CA 94085 (408) 328-4400 www.sitime.com Rev. 1.01 Revised Feb 20, 2013SiT9120 Standard Frequency Differential Oscillator The Smart Timing Choice The Smart Timing Choice Electrical Characteristics (continued) Parameter and Conditions Symbol Min. Typ. Max. Unit Condition VOD Magnitude Change VOD 50 mV See Figure 4 Offset Voltage VOS 1.125 1.2 1.375 V See Figure 4 VOS Magnitude Change VOS 50 mV See Figure 4 Rise/Fall Time Tr, Tf 495 600 ps 20% to 80% OE Enable/Disable Time T oe 115 ns f = 212.5 MHz - For other frequencies, T oe = 100ns + 3 period RMS Period Jitter T jitt 1.2 1.7 ps f = 100 MHz, VDD = 3.3V or 2.5V 1.2 1.7 ps f = 156.25 MHz, VDD = 3.3V or 2.5V 1.2 1.7 ps f = 212.5 MHz, VDD = 3.3V or 2.5V RMS Phase Jitter (random) T phj 0.6 0.85 ps f = 156.25 MHz, Integration bandwidth = 12 kHz to 20 MHz, all Vdds Pin Description Pin Map Functionality Top View H or Open: specified frequency output OE Input L: output is high impedance 1 OE/ST 1 6 VDD H or Open: specified frequency output ST Input L: Device goes to sleep mode. Supply current reduces to I std. 2 5 NC OUT- Not Connect Leave it floating or connect to GND for 2NC NA better heat dissipation 3 4 GND OUT+ 3 GND Power VDD Power Supply Ground 4 OUT+ Output Oscillator output 5 OUT- Output Complementary oscillator output 6 VDD Power Power supply voltage Absolute Maximum Attempted operation outside the absolute maximum ratings of the part may cause permanent damage to the part. Actual perfor- mance 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 (HBM) 2000 V Soldering Temperature (follow standard Pb free soldering guidelines) 260 C 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 6 www.sitime.com