SiT3372 1 MHz to 220 MHz Ultra-low Jitter Differential VCXO Features Applications Any frequency between 1 MHz and 220 MHz accurate to 6 Cable Modem Termination System (CMTS), Video, decimal places Broadcasting System, Audio, Industrial Sensors, Remote Widest pull range options: 25, 50, 80, 100, 150, 200, Radio Head (RRH) 400, 800, 1600, 3200ppm SATA, SAS, 10GB Ethernet, Fibre Channel, PCI-Express 0.23 ps RMS phase jitter (typ) over 12 kHz to 20 MHz bandwidth Wide temperature range support from -40C to 85C Contact SiTime for 105C option Industry-standard packages: 3.2 x 2.5, 7.0 x 5.0 mm Contact SiTime for 5.0 x 3.2 mm package For frequencies 220.000001 MHz to 720 MHz, refer to SiT3373 Electrical Characteristics All Min and Max limits in the Electrical Characteristics tables are specified over temperature and rated operating voltage with standard output termination show in the termination diagrams. Typical values are at 25C and nominal supply voltage. Table 1. Electrical Characteristics Common to LVPECL, LVDS and HCSL Parameter Symbol Min. Typ. Max. Unit Condition Frequency Range Output Frequency Range f 1 220 MHz Accurate to 6 decimal places Frequency Stability Frequency Stability F stab -15 +15 ppm Inclusive of initial tolerance, operating temperature, rated power supply voltage, load variations, and first year aging at 25C. Contact SiTime for 15 ppm. -20 +20 ppm Inclusive of initial tolerance, operating temperature, rated power supply voltage, load variations, and first year aging at 25C. -30 +30 ppm -50 +50 ppm Temperature Range Operating Temperature Range T use -20 +70 C Extended Commercial -40 +85 C Industrial. Contact SiTime for other temperature range options. Supply Voltage Supply Voltage Vdd 2.97 3.3 3.63 V 2.7 3.0 3.3 V 2.52 2.8 3.08 V 2.25 2.5 2.75 V Voltage Control Characteristics Pull Range PR 25, 50, 80, 100, 150, ppm See the APR (Absolute Pull Range) Table 11 200, 400, 800, 1600, Contact SiTime for custom pull range options. 3200 Upper Control Voltage VC U 90% Vdd Voltage at which maximum frequency deviation is guaranteed Lower Control Voltage VC L 10% Vdd Voltage at which minimum frequency deviation is guaranteed Control Voltage Input Impedance VC z 10 M Control Voltage Input Bandwidth V c 10 kHz Contact SiTime for other input bandwidth options Pull Range Linearity Lin 1.0 % Frequency Change Polarity Positive Slope Input Characteristics Input Voltage High VIH 70% Vdd Pin 2, OE Input Voltage Low VIL 30% Vdd Pin 2, OE Input Pull-up Impedance Z in 100 - k Pin 2, OE logic high or logic low Output Characteristics Duty Cycle DC 45 55 % Startup and OE Timing Startup Time T start 3.0 ms Measured from the time Vdd reaches its rated minimum value. OE Enable/Disable Time T oe 3.8 s Rev 1.0 September 30, 2017 www.sitime.com SiT3372 1 MHz to 220 MHz Ultra-low Jitter Differential VCXO Table 2. Pin Description Pin Symbol Functionality 1 VIN Input Control Voltage No Connect No Connect: Leave floating or connect to GND for better heat dissipation. NC for all 3.2 x 2.5 mm package options. (NC) 1,2 2 NC/OE H : specified frequency output Output Enable L: output is high impedance. Only output driver is disabled. OE function only available on 7050 (OE) package. Pin 2 on 3225 package is NC. 3 GND Power Vdd Power Supply Ground 4 OUT+ Output Oscillator output 5 OUT- Output Complementary oscillator output 3 6 Vdd Power Power supply voltage Top View Top View VIN 1 6 VDD VIN 1 6 VDD 1 2 2 5 2 5 NC/OE OUT- NC OUT- 3 4 3 4 GND OUT+ GND OUT+ Figure 1. Pin Assignments Figure 2. Pin Assignments (7.0 x 5.0 mm package) (3.2 x 2.5 mm package) Notes: 1. A pull-up resistor of 10 k or less is recommended if pin 1 is not externally driven. 2. OE mode is only available in the 7050 package. 3225 package is NC. 3. A capacitor of value 0.1 F or higher between Vdd and GND is required. An additional 10 F capacitor between Vdd and GND is required for the best phase jitter performance. Table 3. Electrical Characteristics LVPECL Specific Parameter Symbol Min. Typ. Max. Unit Condition Current Consumption Current Consumption Idd 92 mA Excluding Load Termination Current, Vdd = 3.3V or 2.5V OE Disable Supply Current I OE 61 mA OE = Low Output Disable Leakage Current I leak 0.15 A OE = Low Maximum Output Current I driver 32 mA Maximum average current drawn from OUT+ or OUT- Output Characteristics Output High Voltage VOH Vdd-1.1 Vdd-0.7 V See Figure 3 Output Low Voltage VOL Vdd-1.9 Vdd-1.5 V See Figure 3 Output Differential Voltage Swing V Swing 1.2 1.6 2.0 V See Figure 4 Rise/Fall Time Tr, Tf 225 290 ps 20% to 80%, see Figure 3 Jitter RMS Phase Jitter (random) T phj 0.220 0.270 ps f = 156.25 MHz, Integration bandwidth = 12 kHz to 20 MHz, all Vdd levels, includes spurs, 7.0 x 5.0 mm package. 0.225 0.280 ps f = 156.25 MHz, Integration bandwidth = 12 kHz to 20 MHz, all Vdd levels, includes spurs, 3.2 x 2.5 mm package. 0.1 ps f = 156.25 or 322.265625 MHz, IEEE802.3-2005 10GbE jitter mask integration bandwidth = 1.875 MHz to 20 MHz, includes spurs, all Vdd levels. 4 RMS Period Jitter T jitt 1.0 1.6 ps f = 100, 156.25 or 212.5 MHz, Vdd = 3.3V or 2.5V Rev 1.0 Page 2 of 13 www.sitime.com