CC2591 Datasheet, PDF (5/18 Pages) Texas Instruments – 2.4-GHz RF Front End

CC2591
www.ti.com ........................................................................................................................................................ SWRS070A – MARCH 2008 – REVISED JUNE 2008
TERMINAL
NO.
NAME
—
GND
1
AVDD_PA1
2
RF_N
3
RXTX
4
RF_P
5
PAEN
6
EN
7
HGM
8, 9, 12, 14
GND
10
AVDD_PA2
11
ANT
13
AVDD_LNA
15
BIAS
16
AVDD_BIAS
Table 1. TERMINAL FUNCTIONS
TYPE
DESCRIPTION
Ground
Power
RF
Analog/Control
RF
Digital Input
Digital Input
Digital Input
Ground
Power
RF
Power
Analog
Power
The exposed die attach pad must be connected to a solid ground plane. See
CC2591EM reference design for recommended layout.
2.0 V – 3.6 V Power. PCB trace to this pin serves as inductive load to PA . See
CC2591EM reference design for recommended layout.
RF interface towards CC24xx or CC25xx device.
RXTX switching voltage when connected to CC24xx devices. See Table 3 and Table 4
for details.
RF interface towards CC24xx or CC25xx device
Digital control pin. See Table 3 and Table 4 for details.
Digital control pin. See Table 3 and Table 4 for details.
Digital control pin.
HGM=1 → Device in High Gain Mode
HGM=0 → Device in Low Gain Mode (RX only)
Secondary ground connections. Should be shorted to the die attach pad on the top
PCB layer.
2.0 V – 3.6 V Power. PCB trace to this pin serves as inductive load to PA. See
CC2591EM reference design for recommended layout.
Antenna interface.
2 V – 3.6 V Power. PCB trace to this pin serves as inductive load to LNA. See
CC2591EM reference design for recommended layout.
Biasing input. Resistor between this node and ground sets bias current to PAs.
2 V – 3.6 V Power.
Copyright © 2008, Texas Instruments Incorporated
Product Folder Link(s): CC2591
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