RF6509 Datasheet, PDF (6/12 Pages) RF Micro Devices – 2.7V TO 3.6V MODULE FOR INTEGRATION WITH 900MHz SMART ENERGY AMI

RF6509
Control Logic Table
RX out/TX in
3
2
1
V2S2
V3S2
ANT
V1S2
LNA
10db
PA
V3S1
3
2
V2S1
1
V1S1
SW1
SW2
LNA
V1S1 V2S1 V3S1 V1S2 V2S2 V3S2 LNA LNA LNA
VSEL VREF VCC
High Low Low Low Low High High OFF OFF
Low High Low Low High Low High OFF OFF
PA
VCC1
and 2
ON
X*
Low Low High High Low Low
Low
ON
ON
X*
Low Low High High Low Low High ON
ON
X*
High indicates logic High of >2.7V and Low indicates logic Low of <0.2V.
*An X means that the state of the pin doesn’t matter.
PA
PA
Bias
ON
OFF
OFF
OFF
PA
VREG
PATH
ON
Tx path thru PA
OFF Tx/Rx Thru path
with 10dB attenu-
ation
OFF Rx path thru LNA
(High gain mode)
OFF Rx path thru LNA
(Low gain mode)
6 of 12
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at ([phone] or [e-mail].
DS121128