En la ayuda de la funcion date() de php encontre lo que buscaba:
Código PHP:
function findWeekPeriod($week, $year)
{
$aPeriod = array();
// if you are a Catholic you should use $x = 0 considering Sunday as the first day of the week. I'm an Orthodox so I consider it the seventh day of the week
$x = 1;
$aPeriod['start'] = date("d-m-Y", mktime(0, 0, 0, 1, 1 + $week*7 + $x - 6, $year));
$aPeriod['end'] = date("d-m-Y", mktime(0, 0, 0, 1, 1 + $week*7 + $x, $year));
return $aPeriod;
}
Ahi esta por si alguien la necesita, funciona rebien.
Salu2 !!!