RFFM6404 Datasheet, PDF (4/8 Pages) RF Micro Devices – 2.5V to 4.5V, ISM Band, 27.5dBm, 430MHz to 450MHz Transmit/Receive Module

RFFM6404
Switch Control Truth Table
Operating Mode
TR
EN
BYP
PA
(Pin 2)
(Pin 3)
(Pin 4)
Transmit
High
High
Low
ON
Receive
Receive Bypass
Low
High
Low
High
Low
High
OFF
OFF
Shutdown
X
Low
X
OFF
LNA
OFF
ON
OFF
OFF
Application Schematic (without external filter)
1uF
1uF
1 28 27 26 25 24 23 22
VAPC
ANT
TR 2
EN 3
BYP 4
5
220nF
6
Z0 = 50 Ω
7
21
Z0 = 50 Ω
20
TX
19
Z0 = 50 Ω
18
RX
17 _{VCC_RX}
16
8 9 10 11 12 13 14 15
Z0 = 50 Ω Z0 = 50 Ω
SAW1
SAW2
RF Micro Devices Inc. 7628 Thorndike Road, Greensboro, NC 27409-9421
For sales or technical support, contact RFMD at +1.336.678.5570 or [e-mail].
DS140721
The information in this publication is believed to be accurate. However, no responsibility is assumed by RF Micro Devices, Inc. ("RFMD") for its use, nor for any infringement of patents or other rights of
third parties resulting from its use. No license is granted by implication or otherwise under any patent or patent rights of RFMD. RFMD reserves the right to change component circuitry, recommended
application circuitry and specifications at any time without prior notice.
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