CC2592_15 Datasheet, PDF (12/22 Pages) Texas Instruments – CC2592 2.4-GHz Range Extender

CC2592
SWRS159 – FEBRUARY 2014
www.ti.com
7 Controlling the Output Power from CC2592
The output power of the CC2592 device is controlled by controlling the input power. The CC2592 PA is
designed to work in compression (class AB).
Driving the CC2592 device too far into saturation might result in spurious emissions and harmonics above
regulatory limits. This caution should especially be considered for systems targeting a wide operating
temperature range, where a combination of low temperature, low supply voltage, and a transceiver that
increases output power (drive level) at low temperature, can result in high spurious emissions.
Figure 7-1 shows the maximum recommended drive level versus temperature and supply voltage.
Figure 7-1. Maximum Recommended Drive Level
8 Input Levels on Control Terminals
The three digital control terminals (PA_EN, LNA_EN, and HGM) have built-in level-shifting functionality,
meaning that if the CC2592 device operates off a 3.7-V supply voltage, the control terminals still sense
1.6- to 1.8-V signals as a logical 1. However, the input voltages should not have a logical 1 level that is
higher than the supply.
12
Input Levels on Control Terminals
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