VFJA905 Jitter Attenuator with 3 Input Selections plus Free-run Mode RoHS Status Features ¾ ¾ ¾ ¾ 10 MHz to 200MHz Output Frequency Range 8 KHz to 200 MHz Input Frequency Range Ultra Low Jitter and Phase Noise: -143 dBc/Hz @ 1KHz Low Power: < 150mW typical Applications ¾ ¾ ¾ Sonet / SDH / ATM 10 Gigabit Ethernet Wireless Infrastructure Description The VFJA905 is a Jitter Attenuator that provides two LVCMOS outputs with a frequency of 25 MHz. Two select inputs [S1,S0] allow the user to select 1 of 3 preset input frequencies or Free-run Mode. In Free-run mode the device outputs a 25 MHz clock that is not locked to the input reference frequency. Operating with a +3.3 volt power supply the device typically consumes 150 mW. The VFJA905 is available in a 19.5 mm x 15.5 mm surface mount package. 75 South Street, Hopkinton, MA 01748 • 800-982-5737 • 508-435-6831 • FAX 508-435-5289 • www.valpeyfisher.com • RevE1009 1 VFJA905 Jitter Attenuator with 3 Input Selections plus Free-run Mode 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” Phase Jitter Symbol SSB Phase Noise Фn Condition Min Fout Fin Slew Rate 2.5V / ns (min) Vin AC coupled internally Voh IOH Vol IOL = 8 mA = 8 mA Typ Max 25 MHz 2.5 25 125 MHz 0.4 3.3 V p-p Vcc-0.6 Vcc V 0.0 0.3 V 0.24 ps(rms) 12KHz to 20MHz 100Hz 1KHz 10KHz 100KHz 0.20 -120 -143 -153 -163 dBc/Hz ± 32 APR Free-run -40ºC to +85ºC Accuracy Modulation BW @ 50% Duty Cycle Rise / Fall Tr/Tf 20% to 80% Time Start up time Supply Vcc Voltage Icc Input Current Operating Ta Temperature Range Note : 1. Consult Factory for optional bandwidths. Unit 10 50 3.30 45 -40° @ 25 MHz ppm Hz 55 % 0.6 ns 3 3.15 See Table 1 ppm ±35 45 Note Note 1 sec 3.45 V 55 mA +85° °C 75 South Street, Hopkinton, MA 01748 • 800-982-5737 • 508-435-6831 • FAX 508-435-5289 • www.valpeyfisher.com • RevE1009 2 VFJA905 Jitter Attenuator with 3 Input Selections plus Free-run Mode Environmental and Mechanical Parameter Mechanical Shock Thermal Shock Specification 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 260°C for 10s max Hermetic Seal -8 Leak rate less than 5x10 atm.cc/s of helium (crystal only) Connection Diagram Vcc = 3.3V Mechanical Outline C1 0.1 uF 3 4 Fin 1 12 Fout 1 S1 S0 5 7 11 Fout 2 8 14 Gnd Pin # Description 1 Fin 2 DNC 3 Vccp* 4 Vcc 5 S1 6 DNC 7 S0 8 Gnd 9 N/C 10 N/C 11 Fout 2 12 Fout 1 13 N/C 14 Gnd * Connect pin #3 to pin #4 and add 0.1 uF Table 1 S1:S0 00 01 10 11 Input Frequency (MHz) Free-run Mode 2.5 25 125 Output Frequency (MHz) 25.00 25.00 25.00 25.00 75 South Street, Hopkinton, MA 01748 • 800-982-5737 • 508-435-6831 • FAX 508-435-5289 • www.valpeyfisher.com • RevE1009 3