gennum corporation p.o. box 489, stn. a, burlington, ontario, canada l7r 3y3 tel. +1 (905) 632-2996 fax. +1 (905) 632-5946 e-mail: info@gennum.com www.gennum.com revision date: july 2005 document no. 522 - 40 - 04 data sheet go1515 features ? generates 1.485ghz or 1.485/1.001ghz signal for hd-linx? ics ? low current consumption ?50 output impedance ? operates from a single 5v supply ? 8 pin tape on reel ? pb-free applications vco for the following hd-linx? ics: gs1515, gs1522, gs1540, gs1545. description the go1515 is a self cont ained, miniature voltage controlled oscillator (vco) that is used in conjunction with gennum?s hd-linx? ics. it produces a clean 1.485ghz reference clock signal for such devices as the gs1515 hdtv reclocker and other hd-linx? devices. the control voltage range is from 3.10 volts to 4.65 volts and is derived from the on-chip plls. the go1515 frequency can be pulled approximately 16mhz for every one volt of control. the output level is approximat ely 1.0dbm with low spurious and noise content. it is designed to drive 50 strip lines. the go1515 vco is used with the following hd-linx? ics; gs1515, gs1522, gs1540, gs1545 and is ordered as a separate item. the vco requires a single 5v supply and draws a maximum of 15ma of cur rent. it is packaged in a miniature 8-pin proprietary surface mount package and operates over the normal commercial temperature range of 0c to +70c. block diagram ordering information part number pac k ag e temperature pb-free go1515 - ctae3 8 pin tape on reel 0c to 70c yes oscillator circuit 1000pf 47pf stripline stripline 3.3pf 2pf v ctr v cc out gnd hd-linx ? go1515 voltage controlled oscillator
522 - 40 - 04 2 of 5 go1515 pin connections electrical characteristics v s = 5.0v 0.25v, temperature = 0c to 70c unless otherwise specified. pa r a m e t e r symbol conditions min typ max units supply voltage v cc 4.75 5.0 5.25 v supply current s - - 15 ma control voltage range v ctr +3.1 - +4.65 v control voltage sensitivity df/dv 11 16 21 mhz/v operating frequency range ? vco 1483.5 - 1485.5 mhz output signal level v out -2 1 +4 dbm signal to noise ratio s/n signal level: 1khz 8khz deviation = 0.3~3.0khz 40 - - db carrier to noise ratio c/n 25khz separation, 1khz bandwidth 74 - - dbc pushing figure v s = 5.0v 0.25v, ref: v s = 5.0v - 500 - khz pulling figure vswr = 2.0 for all phase, ref: 50 - 1000 - khz temperature stability t coef 0c to 70c, ref. = 25c - - 3 mhz spurious response - - -10 dbc output impedance z o - 50 - pin descriptions number symbol type description 2, 4, 6, 8 gnd - most negative power supply connections. 1 v ctr i control voltage for the vco. 3 v cc - most positive power supply connection. 5 o/p o vco signal output. 7 nc - no connection. go 1515 nc gnd o/p gnd gnd gnd v cc v ctr 765 8 4 13 2 note: pin numbers are arbitrary. there are no pin markings on the device itself top view
522 - 40 - 04 3 of 5 go1515 fig. 1 footprint of the go1515 dimensions soldering recommendations reflow conditions the device will meet the data sheet specifications after completing the reflow process according to the profile shown in figure 3 or figure 4. do not reflow the device more than twice. endurance to warp when the device is soldered on a printed circuit board (dimension: 100mm x 100mm; thickness: 1.6mm) and the pcb is warped as shown in figure 2, the device will not be cracked or damaged. fig. 2 pcb warp soldering flux do not use cleaning type flux. washing the devices after using cleaning type flux may damage inner parts and affect performance. out nc gnd v cc v ctr gnd 65 55 40 40 55 65 45 gnd gnd go1515 top view all dimensions are in mils 1 mil = 1/1000 inch go1515 top view 2.0 0.3 4.2 0.3 6.0 max 1.60.5 4.70.3 6.30.3 7.8 max all dimensions in millimetres. nc gnd out v cc v ctr gnd gnd gnd 2.0 max vco pcb max 2mm
522 - 40 - 04 4 of 5 go1515 solder reflow profiles fig. 3 standard eutectic solder reflow profile fig. 4 maximum pb-free solder reflow profile 25?c 100?c 150?c 183?c 230?c 220?c time temperature 6 min. max 120 sec. max 60-150 sec. 10-20 sec. 3?c/sec max 6?c/sec max 25?c 150?c 200?c 217?c 260?c 250?c time temperature 8 min. max 60-180 sec. max 60-150 sec. 20-40 sec. 3?c/sec max 6?c/sec max
522 - 40 - 04 5 of 5 gennum corporation mailing address: p.o. box 489, stn. a, burlington, ontario, canada l7r 3y3 tel. +1 (905) 632-2996 fax. +1 (905) 632-5946 shipping address: 970 fraser drive, burlington, ontario, canada l7l 5p5 gennum japan corporation shinjuku green tower building 27f 6-14-1, nishi shinjuku shinjuku-ku, tokyo 160-0023 japan tel: +81 (03) 3349-5501 fax: +81 (03) 3349-5505 gennum uk limited 25 long garden walk, farnham, surrey, england gu9 7hx tel. +44 (0)1252 747 000 fax +44 (0)1252 726 523 gennum corporation assumes no responsibility for the use of any circuits described herein and makes no representations that th ey are free from patent infringement. ? copyright june 1999 gennum corporation. all rights reserved. printed in canada. go1515 handling recommendations cleaning do not wash the devices. storage store the devices out of dir ect sunlight, at a stable temperature and hum idity. avoid extreme temperatures, high humidity and wide te mperature fluctuations. condensation on the devices may result in reduced quality and lowered solderability. use within 6 months after delivery. if the devices are stored for more than one year, solderability may be degraded. avoid dust, sea breezes and corrosive gases (cl 2 , nh 3 , so 2 , no x , etc.). revision notes: changed to e3 package. added ?pb- free? bullet to front page. added pb-free solder reflow profile. for latest product information, visit www.gennum.com. document identification data sheet the product is in production. gennum reserves the right to make changes at any time to improve reliability, function or design, in order to provide the best product possible. caution electrostatic sensitive devices do not open packages or handle except at a static-free workstation
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