SiT3907 High Precision Digitally Controlled Oscillator (DCXO) The Smart Timing Choice The Smart Timing Choice Features Applications Factory programmable between 1 MHz and 220 MHz Ideal for clock synchronization, instrumentation, low bandwidth PLL, jitter cleaner, clock recovery, audio, Digitally controlled pull range: 25, 50, 100, 200, 400, 800, video, and FPGA 1600 PPM Eliminate the need for an external DAC Superior pull range linearity of <= 0.01% LVCMOS/LVTTL compatible output Three industry-standard packages: 3.2 mm x2.5 mm (4-pin), 5.0 mm x 3.2 mm (6-pin), 7.0 mm x 5.0 mm (6-pin) Programmable drive strength to reduce EMI Outstanding silicon reliability of 2 FIT Electrical Characteristics Parameters Symbol Min. Typ. Max. Unit Condition Output Frequency Range f 1 220 MHz -10 +10 PPM Inclusive of initial tolerance, operating temperature, rated Frequency Stability F stab -25 +25 PPM power, supply voltage and load change -50 +50 PPM Aging F aging -5 +5 PPM 10 years -20 +70 C Extended Commercial Operating Temperature Range T use -40 +85 C Industrial 1.71 1.8 1.89 V 2.25 2.5 2.75 V Supply Voltage Vdd 2.52 2.8 3.08 V 2.97 3.3 3.63 V 25, 50, 100, 200 Pull Range PR PPM See the last page for Absolute Pull Range, APR table 400, 800, 1600 Linearity Lin 0.01 % Frequency Change Polarity Positive Slope Frequency Update Rate F update 25 kU / s Frequency control mode 1, see Table 1 12.5 kU / s Frequency control mode 2, see Table 2 Current Consumption Idd 32 34 mA No load condition, f = 100 MHz, Vdd = 2.5V, 2.8V or 3.3V 31 34 mA No load condition, f = 100 MHz, Vdd = 1.8 V Duty Cycle DC 45 55 % Vdd = 1.8V, 2.5V, 2.8V or 3.3V Rise/Fall Time Tr, Tf 1.2 2 ns Vdd =1.8V, 2.5V, 2.8V or 3.3V, 10% - 90% Vdd level Output High Voltage VOH 90 %Vdd IOH = -6mA, Vdd = 3.3V, 2.8V, 2.5V IOL = -3mA, Vdd = 1.8V Output Low Voltage VOL 10 %Vdd IOH = -6mA, Vdd = 3.3V, 2.8V, 2.5V IOL = -3mA, Vdd = 1.8V Output Load Ld 15 pF Start-up Time T start 6 10 ms Input Low Voltage VIL 0.2xVdd V See Figure 5 Input Middle Voltage VIM 0.4xVdd 0.6xVdd V See Figure 5 Input High Voltage VIH 0.8xVdd V See Figure 5 Input High or Low Logic Pulse T logic 500 ns See Figure 5 Input Middle Pulse Width T middle 500 ns See Figure 5 Input Impedance Zin 100 k Input Capacitance Cin 5 pF 20% to 80% RMS period Jitter T jitt 1.5 2 ps f = 20 MHz, all Vdds 2 3 ps f = 20 MHz, all Vdds RMS Phase Jitter (random) T phj 0.6 1 ps f = 20 MHz, Integration bandwidth = 12 kHz to 20 MHz, all Vdds. No activity on DP pin. 0.65 1 ps With full activity on DP pin. Notes: 1. Absolute Pull Range (APR) is defined as the guaranteed pull range over temperature and voltage. 2. APR = pull range (PR) - frequency stability (F stab) - Aging (F aging) SiTime Corporation 990 Almanor Avenue Sunnyvale, CA 94085 (408) 328-4400 www.sitime.com Rev. 1.2 Revised July 24, 2014SiT3907 High Precision Digitally Controlled Oscillator (DCXO) The Smart Timing Choice The Smart Timing Choice Pin Description (4-pin device) Top View Pin Map Functionality 1 Digital Programming Pin (DPpin) See Frequency Control Protocol Description section DP VDD 1 4 3 2 GND Electrical ground 3 CLK Oscillator output 2 3 GND CLK 3 4 VDD VDD power supply Pin Description (6-pin device) Top View Pin Map Functionality 1 Digital Programming Pin (DPpin) See Frequency Control Protocol Description section DP VDD 1 6 2 NC No connect 3 3 GND Electrical ground 2 5 NC NC 4 CLK Oscillator output 5 NC No connect GND 3 4 CLK 3 6 VDD VDD power supply Note: 3. A capacitor value of 0.1 F between VDD and GND is required. Absolute Maximum 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 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. 1.2 Page 2 of 10 www.sitime.com