RF6505
3.2V TO 4.2V, 2.4GHz FRONT END MODULE
Package Style: QFN, 20-Pin, 3.5mmx3.5mmx0.55mm
ANT1_EN
VCCLNA
LNA_EN
20
19
18
17
16
Features
TX P1dB: 27dBm
Integrated RF Front End
Module, Balun, PA, Filter, Ant
Switch, LNA with Bypass,
TX/RX Switch
Single Differential
Bidirectional TX/RX Port.
Compatible with most
transceivers
ZigBee
®
802.15.4 Based
Systems for Remote
Monitoring and Control
WiFi 802.11b/g
2.4GHz ISM band
applications
Smart Meters for Energy
Management
RFN
1
2
BALUN
ANT2_EN
RX_EN
15
14
13
12
11
ANT2
GND
GND
RFP
3
4
5
ANT1
VCC
GND
TX_EN
N/C
VCC1/2
GND
PDET
Functional Block Diagram
Product Description
The RF6505 integrates a complete solution in a single Front End Module (FEM) for
WiFi and ZigBee applications in the 2.4GHz to 2.5GHz band. This FEM integrates a
balun, TX/RX switch, power amplifier, harmonic filter, DP2T switch, and low noise
amplifier with bypass mode. It provides a single balanced TDD access for Rx and Tx
paths along with two ports on the output for connecting a diversity solution or a test
port. The device is provided in a 3.5mm x 3.5mm x 0.5mm, 20-pin QFN package.
Ordering Information
RF6505
RF6505SR
RF6505TR7
RF6505TR13
RF6505PCK-410
Standard 25 piece bag
Standard 100 piece reel
Standard 750 piece reel
Standard 2500 piece reel
Fully assembled evaluation board and 5 loose pieces
Optimum Technology Matching® Applied
DS140925
GaAs HBT
GaAs MESFET
InGaP HBT
SiGe BiCMOS
Si BiCMOS
SiGe HBT
GaAs pHEMT
Si CMOS
Si BJT
VCC3
Applications
6
7
8
9
C/I
10
GaN HEMT
BiFET HBT
LDMOS
RF MICRO DEVICES®, RFMD®, Optimum Technology Matching®, Enabling Wireless Connectivity™, PowerStar®, POLARIS™ TOTAL RADIO™ and UltimateBlue™ are trademarks of RFMD, LLC. BLUETOOTH is a trade-
mark owned by Bluetooth SIG, Inc., U.S.A. and licensed for use by RFMD. All other trade names, trademarks and registered trademarks are the property of their respective owners. ©2006, RF Micro Devices, Inc.
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or customerservice@rfmd.com.
1 of 9
RF6505
Absolute Maximum Ratings
Parameter
DC Supply Voltage
Operating Case Temperature
Storage Temperature
ESD Human Body Model RF Pins
ESD Human Body Model All Other
Pins
ESD Charge Device Model All Pins
Moisture Sensitivity Level
Maximum Input Power to PA and
LNA (no damage)
Rating
5
-40 to +85
-40 to +150
500
500
500
MSL 2
+5
Unit
V
°C
°C
V
V
V
dBm
Caution! ESD sensitive device.
Exceeding any one or a combination of the Absolute Maximum Rating conditions may
cause permanent damage to the device. Extended application of Absolute Maximum
Rating conditions to the device may reduce device reliability. Specified typical perfor-
mance or functional operation of the device under Absolute Maximum Rating condi-
tions is not implied.
RoHS status based on EUDirective2002/95/EC (at time of this document revision).
The information in this publication is believed to be accurate and reliable. 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
Parameter
Overall
Operating Frequency Range
Operating Voltage (V
CC
)
TX_EN and RX_EN
Leakage Current
Min.
Specification
Typ.
Max.
Unit
Condition
Specifications must be met across supply volt-
age, control voltage, and temperature ranges
unless otherwise noted. Typical conditions:
T=25°C, V
CC
=3.6V
2400
3.2
2.9
3.6
3.0
1
2400
10
-1
-10
10
24
0.8
27
28
2483
4.2
MHz
V
V
uA
All control logics=Low, No RF Input
Transmit Parameters
Frequency
Input Return Loss
Amplitude Imbalance
Phase Imbalance
Output Return Loss
Gain
Gain Flatness
P1dB
Spectral mask performance
Supply current
Idle current
Thermal Resistance
2nd harmonic level
3rd harmonic level
VSWR Stability and load mismatch
susceptibility
VSWR No damage
Gain settling time
Current sourced through TX_EN
pin
5
5:1
10:1
2
10
uS
mA
490
380
110
42
-40
-30
2483
1
10
MHz
dB
deg
dB
0.5
dB
dBm
-30
dBm
mA
mA
mA
°C/W
dBc
dBc
P
O
=27dBm 802.15.4 OQPSK
P
O
=24dBm 802.15.4 OQPSK
No RF Input
4V V
CC,
4V V
REG,
27dBm
,
P
OUT,
T
REF
= 90°C
Measured using standard 802.15.4 OQPSK
modulation signal
Measured using standard 802.15.4 OQPSK
modulation signal
V
CC
=3.6V, Temp=25°C. Using 802.15.4
OQPSK modulation signal
At rated power
2 of 9
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or customerservice@rfmd.com.
DS140925
RF6505
Parameter
Receive Parameters
Frequency
Gain
Noise Figure
Current
Input IP3
Gain flatness
Input return loss
Output return loss
Amplitude imbalance
Phase imbalance
3
-0.5
10
10
-1
-10
2400
5.5
20
15
-0.5
10
10
-1
-10
50
18
2.8
0.0
5.0
0.1
1
20
3.1
0.4
10.0
1
10
12
0.5
1
10
2483
7
12
2400
10
2.2
7
7
0.5
3
15
2483
MHz
dB
dB
mA
dBm
dB
dB
dB
dB
deg
MHz
dB
μA
dBm
dB
dB
dB
dB
deg
dB
dB
V
V
μA
μA
μS
Measured at any control pin while in TX or RX
mode.
Measured from Antenna 1 to Antenna 2 port
while in TX or RX mode.
All Logic I/O’s
All Logic I/O’s
All Logic I/O’s
All Logic I/O’s
ANT1 or ANT2 path, TX or RX mode
Entire RX path
ANT1 and ANT2
From antenna to RX pin (entire RX path).
From antenna to RX pin (entire RX path).
LNA + Switches
Min.
Specification
Typ.
Max.
Unit
Condition
ByPass Mode
Frequency
Insertion loss
Current
Input IP3
Gain Flatness
Input return loss
Output return loss
Amplitude imbalance
Phase imbalance
Antenna Switch
RF-to-Control Isolation
ANT1 to ANT2 Isolation
Switch Control Logic = HIGH
Switch Control Logic = LOW
Switch Control Current. Logic HIGH
Switch Control Current. Logic LOW
Antenna Select Switch Speed
DS140925
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or customerservice@rfmd.com.
3 of 9
RF6505
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Function
RFN
GND
RFP
VCC
TX_EN
PDET
GND
VCC1/2
C/I
VCC3
NC
GND
ANT1
GND
ANT2
ANT2_EN
ANT1_EN
VCCLNA
LNA_EN
RX_EN
Description
Differential RF input for PA (TX_Mode) and output for LNA (RX_Mode) internally matched to 100Ω.
Ground.
Differential RF input for PA (TX_Mode) and output for LNA (RX_Mode) internally matched to 100Ω.
Voltage supply for VCC Bias. An external 0.1uF capacitor might be needed for low frequency decoupling.
Enable voltage pin for the PA and switch. See logic table for operation.
Provides and output voltage proprtional to the output RF level.
Ground.
Voltage supply for the first and second stages of the PA. An external 1uF capacitor might be needed for low fre-
quency decoupling.
This pin is connected internally (C/I) to Pin 8 therfore this pin should not be grounded. This pin should be left
open.
Voltage supply for the third stage of the PA. An external 1uF capacitor might be needed for low frequency decou-
pling
No connect.
Ground.
This is a common port (antenna). It is matched to 50Ω and DC block is provided internally.
Ground.
This is a common port (antenna). It is matched to 50Ω and DC block is provided internally.
Control pin for antenna select. See logic table for operation.
Control pin for antenna select. See logic table for operation.
Voltage supply. An external 1uF capacitor might be needed for low frequency decoupling.
LNA enable pin for selecting between High gain mode and Bypass mode.
Enable voltage pin for the Receive mode and switch. See logic table for operation.
4 of 9
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or customerservice@rfmd.com.
DS140925
RF6505
Package Drawing
Mode
Tx, Antenna 1
Tx, Antenna 2
Rx, Antenna 1
Rx, Antenna 2
Rx, Antenna 1, LNA Bypass
Rx, Antenna 2, LNA Bypass
TX_EN
High
High
Low
Low
Low
Low
RX_EN
Low
Low
High
High
High
High
LNA_EN
Low
Low
High
High
Low
Low
ANT1_EN
High
Low
High
Low
High
Low
ANT2_EN
Low
High
Low
High
Low
High
DS140925
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or customerservice@rfmd.com.
5 of 9
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