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FX-101-CFF-A1P2 Datasheet(PDF) 2 Page - Vectron International, Inc |
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FX-101-CFF-A1P2 Datasheet(HTML) 2 Page - Vectron International, Inc |
2 / 12 page FX-101 Frequency Translator Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • Web:www.vectron.com Output Frequencies 1.544 77.76 MHz Supply Voltage, C = 5 Vdc Vcc 4.75 5.00 5.25 Vdc D = 3.3 Vdc Vcc 3.15 3.30 3.45 Vdc Supply Current Icc 45 70 mA Input Signal, “0” A = HCMOS CLKIN 0 0.2 (VCC) Vdc Input Signal, “1” A = HCMOS CLKIN 0.7 (VCC) 5.5 Vdc OUTPUT, F = Comp PECL -- -- PECL -- -- VOH VOH Vcc-1.025 Vcc-0.880 Vdc VOL VOL Vcc-1.810 Vcc-1.620 Vdc Rise / Fall Time (77.76 MHz) tR /tF 0.5 2 ns OUTPUT, A = HCMOS -- -- HCMOS -- -- VOH, IOL = 50 uA VOH VCC-0.3 Vdc VOL, IOL = 50 uA VOL 0.1 Vdc Rise / Fall Time (77.76 MHz/20% to 80%) tR /tF 1.4 2.5 ns Output Symmetry, Sym 45 55 % Freq >62.208MHz and 3.3V Sym 40 60 % Jitter @ 77.76 MHz (rms 12 kHz to 20 MHz) 0.5 1 ps Jitter @ 77.76 MHz (cycle to cycle method) 3 5 ps Jitter Transfer, GR-253-CORE sec 5.6.2.1.2 0.1 dB Input Frequency Tracking Capability (Can translate Stratum 1,2,3,3E,4 or SONET Min) APR ±50 ppm Operating Temperature Temp Range C = 0°C to +70°C Temp Range F = -40°C to +85°C Size 25.4 x 20.32 x 5.08 (1.0” x 0.8” x 0.20”) Performance Characteristics Parameter Symbol Min Typical Max Unit Description Vectron's FX-101 is a crystal based frequency translator which is used to translate any input frequency such as 8 kHz, 1.544 MHz, 2.048 MHz, 19.440 MHz etc.to any spe- cific frequency less than or equal to 77.76 MHz. The input frequency does not have to be a 50/50% duty cycle and as an example can be an 8 kHz signal with a logic high "on time" of only 1us, such as a BITS clock. The FX-101 also has the ability to translate any of 1 to 4 different input frequencies to one common output frequency, such as input frequencies of 8 kHz and 1.544 MHz and 19.44 MHz and any other frequency between 8 kHz and 170 MHz translating them to an output frequency up to 77.76 MHz. The "Input Frequency tracking capability" is the total amount of input frequency deviation in which the FX-101 is guaranteed to track or translate. As an example, a typ- ical input clock would be 8 kHz ±20 ppm.The FX-101 is guaranteed to track at least ±50 ppm of error over tem- perature/aging/power supply and is more than twice what most applications require. The PLL control voltage is brought out through a 470K ohm resistor.This would allow for the use of external circuitry (analog comparators or an A/D converter plus a processor) to detect when the con- trol voltage is getting close to the limits of the pull range. |
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