VFCG100 Quad Output Clock Generator Features RoHS Status 300MHz to 1.5GHz frequency range 4 selectable output frequencies Stability: < 1 ppm Low power: <220mW typical Low profile SMD package Applications Optical Networking, SONET / SDH / ATM 10 Gigabit Ethernet Forward Error Correction (FEC) Description The VFCG100 is a Clock Generator which provides an output frequency up to 1.5GHz. Up to four preset output frequencies can be selected by asserting the frequency select inputs [S1:S0]. The VFCG100 is offered in a 19.5mm x17mm surface mount package. Consult factory for frequency selections. Filter Ref Clock VCO PFD FOUT (12) /FOUT (11) /EN (10) N- Divider (13) P1 P2 (14) 0.1uF S1 S0 (3) (5) Block Diagram 75 South Street, Hopkinton, MA 01748 • 800-982-5737 • 508-435-6831 • FAX 508-497-6377 • www.ctsvalpey.com • RevB0912 Specifications are subject to change without notice 1 VFCG100 Quad Output Clock Generator Electrical Specifications Parameter Output Frequencies Output Frequency Range Symbol Condition Min FOUT (F0) – F0(3) 300 Typ F Frequency Stability ∆F/F Operating Temperature T Max Unit Note 1500 MHz See table 2 100 MHz FOUT min to FOUT max ppm @ 25ºC 1 Vs. Operating temperature -40 +85 C Differential LVPECL Output Supply Voltage VCC 3.135 Unterminated 3.3 Supply Current RMS Jitter 50kHz to 80MHz Accuracy V 80 mA 0.2 ps ±5 ppm 300 Start Up Time I/O Select Inputs Tristate Enable/Disable Input 3.465 S1: S0 @ 25ºC ms LVMOS Logic “0” or Floating: Output Enabled Logic “1”: Output Disabled Absolute Maximum Ratings Parameter Min Max Units Power Supply Voltage -0.5 +4.0 Volts Storage Temperature -45 +90 ºC 75 South Street, Hopkinton, MA 01748 • 800-982-5737 • 508-435-6831 • FAX 508-497-6377 • www.ctsvalpey.com • RevB0912 Specifications are subject to change without notice 2 VFCG100 Quad Output Clock Generator Pin Assignments Pin # 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Symbol DNC GND S1 DNC S0 DNC DNC VCC GND /OE /FOUT FOUT P1 P2 Description Do not connect to this pad Ground Output select (msb) Do not connect to this pad Output select (lsb) Do not connect to this pad Do not connect to this pad 3.3 volt power supply Ground Output disable Complimentary output Output Connect to P2 externally Connect to P1 externally Notes Add 0.1 uF capacitor Ordering Information: Once input and output frequencies have been submitted and approved, the Factory will assign a part number. VFCG100 - SUFFIX Sample Frequencies P/N suffix -001 -003 -005 S1:S0 00 01 10 11 Output Frequency (MHz) 622.080 644.5314 669.32658 693.48315 00 01 10 11 666.5192 669.32658 693.48315 704.38 00 01 10 11 622.080 625.000 666.5192 690.5692 Table 2 P/N suffix -002 -004 -006 S1:S0 Mechanical Outline Output Frequency (MHz) 00 01 10 11 1065.00 1066.00 1067.00 1068.00 00 01 10 11 900.00 910.00 920.00 930.00 00 01 10 11 800.00 820.00 840.00 860.00 75 South Street, Hopkinton, MA 01748 • 800-982-5737 • 508-435-6831 • FAX 508-497-6377 • www.ctsvalpey.com • RevB0912 Specifications are subject to change without notice 3