RF5755
2.4GHz TO 2.5GHz 802.11b/g/n
WiFi FRONT END MODULE
Package Style: QFN, 16-pin, 3mmx3mmx0.5mm
C_BWRx
C_Rx
N/C
16
15
14
13
12 C_BT
Features
LNA_Vcc 1
VCC
Applications
Functional Block Diagram
Cellular handsets
Mobile devices
Tablets
Consumer electronics
Gaming
Netbooks/Notebooks
TV/monitors/video
SmartEnergy
Product Description
The RF5755 provides a complete integrated solution in a single Front End
Module (FEM) for WiFi 802.11b/g/n and
Bluetooth
®
systems. The ultra
small form factor and integrated matching greatly reduces the number of
external components and layout area in the customer application. This
simplifies the total Front End solution by reducing the bill of materials, sys-
tem footprint, and manufacturability cost. The RF5755 integrates a
2.4GHz Power Amplifier (PA), Low Noise Amplifier (LNA), power detector
coupler for improved accuracy, and some filtering for harmonic rejection.
The RF5755 is capable of receiving WiFi and
Bluetooth
®
simultaneously.
The device is provided in a 3mmx3mmx0.5mm, 16-pin package. This
module meets or exceeds the RF Front End needs of IEEE 802.11b/g/n
WiFi RF systems.
Ordering Information
RF5755SQ
RF5755SR
RF5755TR7
RF5755PCK-410
Standard 25 piece bag
Standard 100 piece reel
Standard 2500 piece reel
Fully Assembled Evaluation Board with 5 loose sample pieces
Optimum Technology Matching® Applied
Pdetect
DS120214
GaAs HBT
GaAs MESFET
InGaP HBT
SiGe BiCMOS
Si BiCMOS
SiGe HBT
GaAs pHEMT
Si CMOS
Si BJT
VCC
N/C
Integrated 2.4GHz to 2.5GHz
b/g/n Amplifier, LNA, SP3T
Switch, and Power Detector
Coupler
Single Supply Voltage 3.0V to
4.8V
P
OUT
=19.5dBm, 11g, OFDM
at <3.3% EVM, 22dBm 11b
Meeting 11b Spectral Mask
Low Height Package, Suited
for SiP and CoB Designs
RX Out 2
SP3T
BT
11 ANT
10 GND
9 OC
8
Vreg
3
Tx In 4
5
6
7
GaN HEMT
RF MEMS
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 sales-support@rfmd.com.
1 of 15
RF5755
Absolute Maximum Ratings
Parameter
DC Supply Voltage (Continuous with No Damage)
DC Supply Current
Full Specification Temp Range (Full Spec. Compliant)
Extreme Operating
(Reduced Performance)
Storage Temperature
Antenna Port Nominal Impedance
Maximum Tx Input Power into 50 Load for 11b/g/n
(No Damage)
Maximum Rx Input Power (No Damage)
Moisture Sensitivity
Rating
5.4
500
-10 to +70
-40 to -10
+70 to +85
-40 to +150
50
0
0
MSL2
Unit
V
mA
°C
°C
°C
dBm
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
license is granted by implication or otherwise under any patent or patent rights of
RFMD. RFMD reserves the right to change component circuitry, recommended appli-
cation circuitry and specifications at any time without prior notice.
Parameter
2.4GHz Transmit Parameters
Compliance
Nominal Conditions
Frequency
Power Supply
V
REG
Voltage
ON
OFF
Output Power
11g
11b
EVM
Adjacent Channel Power
ACP1
ACP2
Gain
Gain Variation Slope
Range
V
CC
(Average)
V
CC
(Instantaneous)
Frequency
Over Temperature
Typical Input Power
11g
11b
Specification
Min.
Typ.
Max.
Unit
Condition
IEEE802.11b, IEEE802.11g,
FCC CFG 15.247, .205,.209, EN, and JDEC
Specifications must be met across V
CC
, V
REG
, and Tem-
perature; unless otherwise specified.
2.4
3.0
3.0
3.3
3.1
0.00
18
19
20
18.5
19.5
22
3.3
2.5
4.2
3.2
0.20
GHz
V
V
V
dBm
dBm
dBm
PA nominal voltage supply (V
CC
)
PA in “ON” state
PA in “OFF” state
54Mbps, OFDM 54Mbps, V
CC
>3.0V
54Mbps, OFDM 54Mbps, V
CC
>3.3V
11Mbps, CCK, V
CC
>3.0V
P
OUT(g)
=Rated Output Power, 54Mbps OFDM, 50, see
note 1
P
OUT(b)
=20dBm 1Mbps CCK, note 2
V
CC
>3.3V, meeting 11b spectral mask
requirements
4.0
%
-36
-56
26
3.0
30
-33
-51
34
4.2
0.5
1
dBc
dBc
dB
At rated power and a given supply voltage, room temp
V
dB/V
dB/V
dB
dB
dBm
dBm
2.4GHz to 2.5GHz
-0.5
-1.5
-9
-5
+0.5
+1.5
2 of 15
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com.
DS120214
RF5755
Parameter
2.4GHz Transmit Parameters,
cont.
Power Detect
Power Range
Voltage Range
Resistance
Capacitance
Sensitivity
0<P
OUT
<6dBm
6<P
OUT
<23dBm
Current Consumption
I
CC
Quiescent Current
I
REG
V
CC
Leakage Current
Input Port Impedance
Input Port Return Loss
Ruggedness
Output VSWR
Input Power
Stability
Output VSWR
Out-of-Band Emissions 2310MHz
to 2390MHz and 2483.5MHz
to 2500MHz
6:1
-41.25
dBm/MHz P
OUT
=16.5dBm, 54Mbps OFDM Modulation, 64QAM,
RBW=1MHz, VBW=100kHz, V
CC
=3.3V, V
REG
=3.1V
dBm/MHz P
OUT
=20.5dBm, 11Mbps CCK Modulation,
RBW=1MHz, VBW=100kHz, V
CC
=3.3V, V
REG
=3.1V
°C/W
-23
-20
0.5
1.0
dBm
dBm
S
V
CC
=4.8, V
REG
=3.2, P
OUT
=20dBm, T
REF
=85°C
11b modulation, 1Mbps, BW=1MHz, P
OUT
=20dBm
Second
Third
Turn-on/off Time
4.80GHz to 5.00GHz
7.20GHz to 7.50GHz
Output stable to within 90% of final gain, Note 1
IEEE802.11b, IEEE802.11g,
FCC CFG 15.247,.205,.209, EN, and JDEC
2.4
3.0
0
LNA Input P1dB
Gain
WiFi Rx Gain
Simultaneous WiFi/BT Rx Mode
16
11
18
13
20
15
dB
dB
WiFi Rx mode
WiFi Rx/BT Mode, LNA “ON”
-7
3.3
10
2.5
4.2
20
5
GHz
V
mA
A
dBm
LNA V
CC
tied to V
BATT
at all times
LNA in “ON” state
LNA in “OFF” state (C_RX=low, LNA V
CC
=ON)
10:1
-5
dBm
PA must be stable (no spurs above -43dBm) from 0 to
20dBm, All phase angles, no spurious or oscillations
10
2
50
15
170
220
90
3
10
200
250
mA
mA
mA
mA
A
dB
No Damage Conditions: max operating voltage, max
input power, max temperature
3
8
350
mV/dB
mV/dB
V
CC
=3.3V, V
REG
=3.1V, T=25°C.
RF P
OUT
=18.5dBm, 11g, 50
RF P
OUT
=20dBm, 11b, 50
RF=“OFF”
V
REG
>3.0V
V
CC
=4.8V, V
REG
=C_BT=C_RX=C_BWRx<0.2V
0
0.1
10
10
23
1.5
dBm
V
k
pF
Specification
Min.
Typ.
Max.
Unit
Condition
-43
Thermal Resistance
Harmonics
20
2.4GHz Receive Parameters
Compliance
Frequency
LNA Voltage Supply (LNA V
CC
)
LNA Current
DS120214
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com.
3 of 15
RF5755
Parameter
2.4GHz Receive Parameters,
cont.
Noise Figure
WiFi Rx
Simultaneous WiFi/BT Rx Mode
Passband Ripple
WiFi Rx Port Return Loss
WiFi Rx Port Impedance
-0.2
-0.5
9.6
5
7
50
2.4
BT Tx/Rx only Loss
BT Rx* Gain
Passband Ripple
Bluetooth Port Return Loss
Input P1dB
11
-0.2
-0.5
9.6
7
27
30
1.2
13
2.5
1.5
15
+0.2
+0.5
2.1
3
3.5
4
+0.2
+0.5
dB
dB
dB
dB
dB
dB
GHz
dB
dB
dB
dB
dB
dB
dBm
Bluetooth mode
WiFi Rx/BT Mode, LNA “ON”
Bluetooth mode
WiFi Rx/BT mode
Switch in Bluetooth Mode
Switch in WiFi Rx/Bluetooth Mode
Over Temp, C_BT=3.3V to 3.6V
V
CC
>3.3V, including switch
WiFi Rx mode (LNA “ON”)
WiFi Rx/BT Mode (LNA “ON”)
WiFi Rx Mode
WiFi Rx/BT Mode
Over temp and nominal bias conditions (V
CC
=3.3V)
Switch in WiFi Rx/Bluetooth Mode
No external matching
Specification
Min.
Typ.
Max.
Unit
Condition
Bluetooth Parameters
Frequency
Insertion Gain/Loss
Other Requirements
Antenna Port Impedance
Output
Return Loss
Isolation
Antenna to Receive
Antenna to
Switch Control Voltage
Low
High
Switch Control Current
C_Rx Current
Switch Control Speed
Switch P1dB
ESD
Human Body Model
Charge Device Model
500
1000
500
V
V
V
EIA/JESD22-114A RF pins
EIA/JESD22-114A DC pins
JESD22-C101C all pins
28
1.7
2
0
0.2
3.6
10
100
100
V
V
A
A
nsec
dBm
Bluetooth
®
Antenna to Receive
20
20
20
dB
dB
dB
In BT Mode (measured from ANT to Rx port)
In Tx Mode (measured from ANT to BT port)
In Tx Mode (measured from ANT to Rx port)
C Rx, C BT, and C BW Rx control lines
Switch is in the low state (L)
Switch is in the high state (H)
Per control line (C_BT, C_BWRX)
Over V
CC
, Frequency and Temperature.
50
10
dB
Note 1: The PA module must operate with gated bias voltage input at 1% to 99% duty cycle.
Note 2: The output power for channels 1 and 11 may be reduced to meet FCC restricted band requirements.
4 of 15
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com.
DS120214
RF5755
Switch Control Logic
Mode
Standby
WiFi Tx
WiFi Rx
WiFi Rx/BT*
BT Rx
BT Tx
*The FEM can be placed in receive WiFi and
V
REG
L
H
L
L
L
L
Bluetooth
®
C Rx
L
L
H
H
L
L
C BT
L
L
L
L
H
H
C BWRx
L
L
L
H
L
L
modes simultaneously with increased insertion loss.
DS120214
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com.
5 of 15
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