VFFT401 Quad Output Frequency Translator Features ¾ ¾ ¾ ¾ RoHS Status 1.5 GHz Output Frequency Range 4 Selectable Output Frequencies Low Power: <220mW typical Low Profile SMD package Applications ¾ ¾ ¾ Optical Networking, Sonet / SDH / ATM 10 Gigabit Ethernet Forward Error Correction (FEC) Description The VFFT401 is a Frequency Translator which accepts an input frequency from 100 to 800MHz and provides an output frequency from 400 to 1.5GHz. Up to four input and output combinations are possible. Each I/O is preset and determined by the frequency select inputs [S1:S0]. A Lock Detect output signal indicates an “out of lock” condition. The device is implemented with a Phase Locked Loop where all Loop Filter components are integrated into the module. The VFFT401 is offered in a 19.5mm x17mm surface mount package. Consult factory for frequency selections. LD Filter R-Divider F in VCO PFD Fout /Fout /EN N- Divider P1 P2 S1 S0 .1uF Block Diagram 75 South Street, Hopkinton, MA 01748 • 800-982-5737 • 508-435-6831 • FAX 508-435-5289 • www.valpeyfisher.com • RevC0608 1 VFFT401 Quad Output Frequency Translator Absolute Maximum Ratings Parameter Power Supply Voltage Storage Temperature Min -.50 -45 Max +4.0 +90 Units Volts ºC Operating Specification Parameter Supply Voltage Supply Current Output Frequencies (F0) – F0(3) Output Frequency Range Output Configuration Jitter RMS Input frequency Fin( 0) – Fin (3) Input configuration Input Level Input Level Modulation Bandwidth Start up Time I/O Select Inputs Lock Detect Output (LD) Lock / Capture Range Operating Temperature Range Example Input Frequency 669.32658 MHz 669.32658 MHz 693.48315 MHz 704.38 MHz Specification 3.3 Volts +/- 5% 80mA (max) 400 to 1500 MHz 100MHz (max) Differential LVPECL 0.250ps (typ) 100 to 800 MHz Single-ended, AC coupled 150 mVp-p(min) / 900mV (max) 400 mVp-p (min) / 3 .3V (max) 1 K Hz 300 mS (max) S1: S0 Logic “1” : In lock Logic “0” : Out of lock 1% ( min) -40 ºC to +85 ºC Notes See Table 2 FOUT Min to FOUT Max Unterminated 50 KHz to 80 MHz See Table 2 Fin > 200 MHz Consult Factory for options LVCMOS See Note 1 LVCMOS Table 1 Output Frequency 622.080 MHz 669.32658 MHz 644.5314 MHz 657.4213 MHz I / O Ratio 85 / 79 1/1 85 / 79 90 / 84 Select inputs [S1 : S0] 0 0 0 1 1 0 1 1 Notes 1. The input frequency must be within 500ppm of final value before asserting the “Select Inputs.” 75 South Street, Hopkinton, MA 01748 • 800-982-5737 • 508-435-6831 • FAX 508-435-5289 • www.valpeyfisher.com • RevC0608 2 VFFT401 Quad Output Frequency Translator Pin Assignments Pin # 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Symbol Fin Gnd S1 LD S0 DNC DNC Vcc Gnd /OE /Fout Fout P1 P2 Description Input Frequency Ground I/O Select (msb) Lock Detect I/O 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 .1 uF Capacitor Mechanical Outline Vcc = 3.3V C1 .1 uF LD Vcc = 3.3V Disable C1 .1 uF Fin S1 S0 8 14 13 1 4 10 12 3 5 11 2 9 Gnd 75 South Street, Hopkinton, MA 01748 • 800-982-5737 • 508-435-6831 • FAX 508-435-5289 • www.valpeyfisher.com • RevC0608 3 R1 180 Ω Fout nFout R2 180 Ω VFFT401 Quad Output Frequency Translator Ordering Information: Once Input and Output frequencies have been submitted and approved, the Factory will assign a part number. VFFT401 - suffix Sample Frequencies P/N suffix -001 -003 S1:S0 00 01 10 11 Input Frequency (MHz) 622.080 669.32658 644.5314 657.4213 00 01 10 11 155.5200 167.33164 161.13285 164.355325 Table 2 Output Frequency (MHz) 669.32658 669.32658 693.48315 704.38 P/N suffix -002 669.32658 669.32658 693.48315 704.38 -004 S1:S0 00 01 10 11 Input Frequency (MHz) 669.32658 669.32658 693.48315 704.38 00 01 10 11 167.331645 167.331645 173.370787 176.09500 Output Frequency (MHz) 622.080 669.32658 644.5314 657.4213 622.080 669.32658 644.5314 657.4213 75 South Street, Hopkinton, MA 01748 • 800-982-5737 • 508-435-6831 • FAX 508-435-5289 • www.valpeyfisher.com • RevC0608 4