User's Manual

All rights reserved. Passing on and copying of this document,
use and communication of its contents
not permitted
without written authorization from Alcatel.
An 1.8V feed is provided for the I/O. This is not a sensitive supply and no special care is needed for
this in terms of noise (the typical noise level found on digital boards on 1.8V is acceptable).
4.3 Layout
4.3.1 BTDB layout
The layout recommendations from Texas Instruments must be followed.
Refer to document:
http://www.ti.com/lit/an/swra420/swra420.pdf (also available in doc ref [3]).
The layout MUST be based on the evaluation kit of TI. The main page for this follows:
http://processors.wiki.ti.com/index.php/CC256x
4.3.2 Place requirements of BTDB on mainboard
To make the BTDB on mainboard has similar antenna resonant frequency as BTDB alone, there are
some BTDB place requirements:
1. The under space of the BTDB antenna need to be empty, at least 5.5mm empty space.
2. The right side of BTDB antenna need to be at least 3mm empty space.
3. The left side of BTDB antenna need to be at least 5mm empty space.
4.4 Software
A set of patches and features improvements must be downloaded to the CC2564 chip. This is
named as “service pack”.
It depends on the device version (A, B or C), and MUST be downloaded when the device is powered
up, before any RF usage.