# HG changeset patch # User Mychaela Falconia # Date 1580342390 0 # Node ID 6d7486db31cb518797d1457d876756d54d0c88ea # Parent 3799892b1a795497bf371ffdfcf5bb36b491d1c9 Quadband-ideas: Epcos M034F is also D1016 diff -r 3799892b1a79 -r 6d7486db31cb Quadband-ideas --- a/Quadband-ideas Sat Jan 25 22:41:11 2020 +0000 +++ b/Quadband-ideas Wed Jan 29 23:59:50 2020 +0000 @@ -29,18 +29,20 @@ CMU200 instrument) has given us the necessary confidence boost with this particular way of implementing a quadband GSM MS. -Epcos M034F -=========== +Epcos M034F aka D1016 +===================== TI's Leonardo+ and E-Sample boards used a magic component made by Epcos (the canonical SAW filter manufacturer during that era) that was called M034 or M034F -at the time of TI's designs in question. Epcos later gave it a completely -different name when they released it into volume production, thus the name that -is needed in order to buy this part and that is physically marked on the -component package bears to resemblance to M034 - but we will not be able to -disclose this other name until we physically produce our first FreeCalypso -hardware product with this quadband FEM in it, meaning until and unless someone -pays for it. +at the time of TI's designs in question. However, the same component is also +known by a completely different name of Epcos D1016; this new D1016 name is the +only one under which this component can be bought for the purpose of building +new quadband FreeCalypso hw, and the physical markings on the component package +only say "EPCOS D1016", no mention of M034. We (FreeCalypso) have no idea as +to how and why this component got two completely different names. Here is a +picture of the part: + +https://www.freecalypso.org/members/falcon/pictures/Epcos_D1016.jpeg The component in question is an integrated quadband FEM (front end module), integrating the antenna switch and SAW filters in one component package, with a