VFJA910 25MHz Jitter Attenuator Dual LVCMOS Output Features RoHS Status 2 LVCMOS outputs Ultra Low Jitter 0.20ps RMS Phase Noise: -140 dBc/Hz @ 1kHz Low Power: < 120mW typical Free-run mode No external components required Applications Synchronous Ethernet Description The VFJA910 is a Jitter Attenuator that provides two LVCMOS outputs with a frequency of 25MHz. With less than 0.4 dBc of jitter peaking the device allows for cascading multiple stages within the network. A select input [Sel] allows the user to switch from the external input reference to a free-run mode. In free-run mode the device outputs a 25MHz clock that is not locked to the input reference frequency. Operating with a +3.3 volt power supply the device typically consumes 120mW. The VFJA910 is available in a 15.0mm x 13.0mm surface mount package. Filter FOUT 1 FIN R-Divider VCXO PFD FOUT 2 Sel N- Divider Block Diagram North America: +1-800-757-6686 • International: +1-508-435-6831 • Asia: +65-655-17551 • www.ctscorp.com Specifications are subject to change without notice. 1 Rev_1014 VFJA910 25MHz Jitter Attenuator Dual LVCMOS Output Absolute Maximum Ratings Parameter Supply Break Down Voltage Storage Temperature Symbol Condition Min Typ Max Unit VCC -0.5 5.5 V TS -55 +105 C Note Electrical Specifications Parameter Output Frequency Range Input Frequency Range Input Level Output Level Logic “1” Output Level Logic “0” Jitter RMS Symbol SSB Phase Noise Фn APR Free-run Accuracy Modulation BW Duty Cycle Rise / Fall Time Start up time Select Input Supply Voltage Input Current Operating Temperature Range Condition Min FOUT Typ Max 25.0 Unit MHz FIN Slew Rate 2.5V / ns (min) VIN AC coupled internally 0.4 3.3 V P-P VOH IOH = 8 mA VCC-0.1 VCC V VOL IOL = 8 mA 0.0 0.3 V 300 ƒs MHz 25.0 12kHz to 20MHz 100Hz 1kHz 10kHz 100kHz 1MHz 200 -102 -131 -149 -153 -160 dBc/Hz 100 -40ºC to +85ºC 60 TR/TF Sel VCC 45 ppm 50 55 % 0.6 ns 2 10 ms Logic “1” = Free Run Mode Logic “0” = External Input Reference ICC TA Hz 20% to 80% 3.15 3.30 30 -40 @ 25 MHz ppm 30 @ 50% Note 3.45 V 40 mA +85 C Note 1 LVCMOS North America: +1-800-757-6686 • International: +1-508-435-6831 • Asia: +65-655-17551 • www.ctscorp.com Specifications are subject to change without notice. 2 Rev_1014 VFJA910 25MHz Jitter Attenuator Dual LVCMOS Output Environmental and Mechanical Conditions Parameter Mechanical Shock Thermal Shock Condition Per MIL-STD-202, Method 213, Condition E Per MIL-STD-883, Method 1011, Condition A Vibration Per MIL-STD-883, Method 2007, Condition A Soldering Conditions 260C for 10s max -8 Leak rate less than 5x10 atm.cc/s of helium (crystal only) Hermetic Seal Mechanical Outline Connection Diagram VCC = +3.3V 0.1 uF 9 4 0.1 uF FIN 1 7 FOUT 1 Sel 3 6 FOUT 2 5 10 Gnd Pin # 1 2 3 4 5 6 7 8 9 10 Description Fin N/C Sel VCC Gnd FOUT 2 FOUT 1 N/C VCC Gnd Table 1 Sel 0 1 Input Frequency (MHz) 25.00 MHz Free-run Mode Output Frequency (MHz) 25.00 25.00 North America: +1-800-757-6686 • International: +1-508-435-6831 • Asia: +65-655-17551 • www.ctscorp.com Specifications are subject to change without notice. 3 Rev_1014