User's Manual

Table Of Contents
MC46 Hardware Interface Description
DRAFT
MC46_HD_V02.8xb Page 93 of 98 21.08.2003
6.4 Heat sinks and thermally conductive tapes
Thermal management solutions vary largely according to the usage of the final product and
the design of the host device. Therefore, the focus of this chapter is on a brief overview of
standard heat sinks and thermally conductive tapes that have been tested with MC46.
6.4.1 Test conditions and results
Table 39 shows the results of extensive testing based on different combinations of heat
sinks and thermally conductive tapes.
All measurements were performed under the same test conditions:
· GPRS connection, Power control level 5, GSM Band: 850MHz
· GPRS Class 10 (3x downlink, 2x uplink), Coding Scheme CS-4
· V
BATT+ nom
= 4.2V
· Ambient temperature: 55°C
· The conductive tapes were attached either to entire bottom area of the module (in Table
39 referred to as “Full area”), or only to the ground pad near the power amplifier (in Table
39 referred to as “PA only”).