VFFT400 Quad Output Frequency Translator Features ¾ ¾ ¾ ¾ RoHS Status 400 MHz 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 VFFT400 is a Frequency Translator which accepts an input frequency from 8KHz to 200MHz and provides an output frequency from 50MHz to 400MHz. 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 VFFT400 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 VFFT400 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) Specification 3.3 Volts +/- 5% 80mA (max) 50 to 400 MHz 35 MHz (max) Differential LVPECL 0.450ps 8 KHz to 200 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 FOUT min to FOUT max Unterminated 50 KHz to 80 MHz Fin > 200 MHz Consult Factory for options LVCMOS See Note 1 LVCMOS Lock / Capture Range Operating Temperature Range Notes 1. The input frequency must be within 500ppm of final value before asserting the “Select Inputs.” Example Table 1 Suffix Input Frequency 156.25 MHz 155.52 MHz 156.25 MHz 161.1328 MHz -001 Output Frequency 155.52 MHz 156.25 MHz 161.1328 MHz 156.25 MHz Select inputs [S1 : S0] 0 0 0 1 1 0 1 1 Ordering Information: Once Input and Output frequencies have been submitted and approved, the Factory will assign a part number. VFFT400 - suffix 75 South Street, Hopkinton, MA 01748 • 800-982-5737 • 508-435-6831 • FAX 508-435-5289 • www.valpeyfisher.com • RevC0608 2 VFFT400 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