RFFM4501
3.0V TO 5.0V, 4.9GHz TO 5.85GHz
802.11a/n/ac FRONT END MODULE
Package: Laminate, 16-pin, 3.0mm x 3.0mm x 1.05mm
LNA_EN
C_RX
GND
16
15
14
13
12
Features
GND
1
ANT
GND
Functional Block Diagram
Product Description
The RFFM4501 provides a complete integrated solution in a single front
end module (FEM) for WiFi 802.11a/n/ac systems. The ultra-small form
factor and integrated matching minimizes the layout area in the cus-
tomer's application and greatly reduces the number of external compo-
nents. This simplifies the total front end solution by reducing the bill
of materials, system footprint, and manufacturability cost. The RFFM4501
integrates a power amplifier (PA), single pole double throw switch (SPDT),
LNA with bypass, and a power detector coupler for improved accuracy.
The device is provided in a 3mm x 3mm x 1.05mm, 16-pin laminate pack-
age. This module meets or exceeds the RF front end needs of IEEE
802.11a/n/ac WiFi RF systems.
Applications
IEEE802.11a/n/ac WiFi
Applications
4.9GHz to 5.85GHz ISM Band
Applications
Portable Battery-Powered
Equipment
WiFi Access Points, Gateways
and Set Top Boxes
Ordering Information
RFFM4501PCK-410
RFFM4501SB
RFFM4501SR
RFFM4501TR7
RFFM4501SQ
RFFM4501 Eval Board with 5-piece bag
5-Piece bag
100-Piece reel
2500-Piece reel
25-Piece bag
Optimum Technology Matching® Applied
PA_EN
Pdet
Integrated 4.9GHz to
5.85GHz Amplifier, SPDT
TX/RX Switch, LNA with
Bypass, and Power Detector
Coupler
P
OUT
= 21dBm, 11a/n, 5V
2.5% Dynamic EVM
P
OUT
= 17dBm, 11a/n, 3.3V
2.5% Dynamic EVM
P
OUT
= 16dBm, 11ac HT80
MCS9, 3.3V, 1.8% Dynamic
EVM
P
OUT
= 18dBm, 11ac HT80
MCS9 5.0V, 1.8% Dynamic
EVM
RX
2
2fo
11
VCC
GND
3
10
VCC
VDD
4
5
6
7
N/C
8
TX
9
N/C
DS130510
GaAs HBT
GaAs MESFET
InGaP HBT
SiGe BiCMOS
Si BiCMOS
SiGe HBT
GaAs pHEMT
Si CMOS
Si BJT
GaN HEMT
BiFET HBT
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. ©2012, 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 11
RFFM4501
Absolute Maximum Ratings
Parameter
DC Supply Voltage (No RF)
DC Supply Voltage (With RF On)
Maximum Tx Input Power
(No Damage)
Maximum Rx Input Power for
Bypass and Rx Gain Modes
(No Damage)
Operating Ambient Temperature
Extended Temperature Range
Storage Temperature
Moisture Sensitivity
Rating
5.5
5
+10
+10
Unit
V
DC
V
DC
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.
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.
RFMD Green: RoHS compliant per EU Directive 2011/65/EU, halogen free
per IEC 61249-2-21, < 1000ppm each of antimony trioxide in polymeric
materials and red phosphorus as a flame retardant, and <2% antimony in
solder.
-10 to +70
-40 to -10
-40 to +150
MSL3
°C
°C
°C
Parameter
Typical Conditions 3.3V
Tx Performance - 11a/n/ac
Frequency
802.11n Output Power
11n Dynamic EVM
802.11ac Output Power
11ac Dynamic EVM
Tx Performance - Spectral Mask
802.11n/ac Output Power
Frequency
802.11n Output Power
11n EVM
Second Harmonic
Third Harmonic
Specification
Min.
Typ.
Max.
Unit
Condition
Temperature = -10°C to +70°C, V
CC
= 3.3V,
PA_EN = high, P
OUT
= 17dBm using a
IEEE802.11n MCS7 waveform unless otherwise
noted.
Compliance with standard 802.11a/n/ac
5150
16.5
17
2.5
-32
15
16
5850
3
-30.5
1.8
-35
19
MHz
dBm
%
dB
dBm
%
dB
dBm
Meet IEEE802.11n (HT40, HT20 MCS7, and HT80
MCS9) spectral masks
802.11n HT20 and HT40 MCS7
802.11ac HT40 and HT80 MCS9
802.11n HT20 and HT40 MCS7
4900
16
17
2.5
-32
-45
-50
5150
3
-30.5
-41
-43
MHz
dBm
%
dB
dBm/MHz 4.9GHz to 5.825GHz, P
OUT
= 18dBm, 6Mbps
dBm/MHz 802.11a
General Tx Performance
Gain
Gain variation over Temp
Power Detect Voltage
Power Detect Accuracy
24
26
-2
0.35
0.70
-1.5
0.375
0.75
26
28
30
31
2
0.4
0.8
1.5
dB
dB
dB
V
V
dB
RF = off
P
OUT
= 17dBm
Into 3:1 VSWR load, T = 25°C
5.15GHz to 5.35GHz
5.35GHz to 5.825GHz
2 of 11
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or customerservice@rfmd.com.
DS130510
RFFM4501
Parameter
General Tx Performance (continued)
Input Return Loss - TX_IN pin
Output Return Loss at ANT pin
Operating Current
Quiescent Current
Leakage Current
V
CONTROL
High (PA_EN, C_RX, and LNA_EN) for
both TX and RX modes
V
CONTROL
Low (PA_EN, C_RX, and LNA_EN) for
both TX and RX modes
Turn-on time from PA_EN edge
Turn-off time from PA_EN edge
Stability
CW P1dB
-25
24
25
2.8
0
2.9
-15
-15
225
220
175
190
10
V
CC
0.2
500
500
24
-7
-10
250
dB
dB
mA
mA
mA
μA
V
V
ns
ns
dBm
dBm
No spurs above -47dBm into 4:1 VSWR
Tx mode in 50% Duty Cycle
Temperature = -10°C to +70°C, V
DD
= 3.3V,
C_RX = high, LNA_EN = high
11
9
8
12.5
12.5
12.5
2.5
-10
-3
-13
0
-10
13
30
17
50
13
14
16
3.5
-7
-5
dB
dBm
dB
dB
dB
dB
dBm
dBm
mA
μA
Temperature = -10°C to +70°C, V
DD
= 3.3V,
C_RX = high, LNA_EN = low
-10
-8
-6
15
5
20
25
20
10
-6
-7
dB
dB
dB
dBm
dBm
dB
dB
C_RX = High, PA_EN = Low
PA_EN = High, C_RX = Low, LNA_EN = Low
Temperature = 25°C
Temperature = -10°C to +70°C
Temperature = -40°C to +85°C
In specified frequency band
Output stable to within 90% of final gain
P
OUT
= 17dBm
P
OUT
= 16dBm
Nominal Conditions. No RF applied
V
CC
= 3.3V, LNA_EN = low, C_RX = low,
PA_EN = low, temperature = 25°C
In specified frequency band
Specification
Min.
Typ.
Max.
Unit
Condition
Rx Performance
Gain
Gain Over Operating Temperature Range
Gain - Extended
NF
Rx Port Return Loss
ANT Port Return Loss
Input IP3
Input P1dB
I
DD
LNA_EN Control Current
Rx Bypass Mode
Insertion Loss
Rx Port Return Loss
ANT Port Return Loss
Input IP3
Input P1dB
Isolation
ANT-TX; Rx Mode
ANT-RX; Tx Mode
DS130510
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 11
RFFM4501
Parameter
Typical Conditions 5.0V
Tx Performance - 11a/n/ac
Frequency
802.11n Output Power
11n Dynamic EVM
802.11n Output Power - Extended
11n Dynamic EVM - Extended
802.11ac Output Power
11ac Dynamic EVM
802.11n Output Power
Frequency
802.11n Output Power
11n Dynamic EVM
Second Harmonic
Third Harmonic
20
4900
20
2.5
-32
-45
-45
23
26
Gain variation over Temp
Power Detect Voltage
Power Detect Accuracy
Input Return Loss - TX_IN pin
Output Return Loss at ANT pin
Operating Current
Quiescent Current
Leakage Current
Power Supply - V
CC
V
CONTROL
High (PA_EN, C_RX, LNA_EN) for
both TX and RX modes
V
CONTROL
Low (PA_EN, C_RX, LNA_EN)
for both TX and RX modes
Turn-on time from PA_EN edge
Turn-off time from PA_EN edge
Stability
CW P1dB
-25
28
2.8
0
5
2.9
V
CC
0.2
500
500
24
-2
0.35
0.8
-1.5
-8
-15
290
200
0.375
0.90
26
28
3
-30.5
-43
-41
30
31
2
0.4
0.95
1.5
-6
-10
320
220
25
21
5150
5150
20
21
2.5
-32
19
2.5
-32
17
1.8
-35
3
-30.5
3
-30.5
5850
MHz
dBm
%
dB
dBm
%
dB
dBm
%
dB
dBm
MHz
dBm
%
dB
dBm/MHz 4.9GHz to 5.85GHz, P
OUT
= 20dBm, 6Mbps
dBm/MHz 802.11a
dB
dB
dB
V
V
dB
dB
dB
mA
mA
μA
V
V
V
ns
ns
dBm
dBm
No spurs above -47dBm into 4:1 VSWR
Tx mode in 50% Duty Cycle
Temperature = -10°C to +70°C, V
DD
= 5.0V,
C_RX = high, LNA_EN = high
11
8
12.5
12.5
13
16
dB
dB
Temperature = -40°C to +85°C
Output stable to within 90% of final gain
For best performance at V
CC
= 5.0V, PA_EN
should be set to 2.9V
At rated 11n P
OUT
Nominal Conditions, No RF applied
V
CC
= 5V, PA_EN = low, C_RX = low, LNA_EN = low
RF = off
P
OUT
= 20dBm
At rated power; over voltage and process up to 3:1
VSWR
In specified frequency band
5.15GHz to 5.35GHz
5.35GHz to 5.825GHz
802.11n HT20 and HT40 MCS7
Meet IEEE HT40 MCS7 Spectral Mask
802.11ac HT40 and HT80 MCS9
Temperature = -40°C to +85°C
802.11n HT20 and HT40 MCS7
Specification
Min.
Typ.
Max.
Unit
Condition
Temperature = -10°C to +70°C, V
CC
= 5.0V,
PA_EN=2.9V, P
OUT
=20dBm, using an
IEEE802.11n MCS7 waveform unless otherwise
noted.
Compliance with standard 802.11a/n/ac
General TX Performance
Gain
Rx Performance
Gain
Gain - Extended
4 of 11
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or customerservice@rfmd.com.
DS130510
RFFM4501
Parameter
Rx Performance (continued)
NF
Rx Port Return Loss
ANT Port Return Loss
Input IP3
Input P1dB
I
DD
LNA_EN Control Current
-3
-13
2.5
-15
-10
0
-10
13
30
17
50
3.5
-7
-5
dB
dB
dB
dBm
dBm
mA
μA
Temperature = -10°C to +70°C, V
DD
= 5.0V,
C_RX = high, LNA_EN = low
-10
-8
-10
-6
15
5
20
25
20
10
-6
-8
dB
dB
dB
dBm
dBm
dB
dB
C_RX = High, PA_EN = Low
PA_EN = High, C_RX = Low, LNA_EN = Low
Specification
Min.
Typ.
Max.
Unit
Condition
Temperature = -10°C to +70°C, V
DD
= 5.0V,
C_RX = high, LNA_EN = high
In specified frequency band
Rx Bypass Mode
Insertion Loss
Rx Port Return Loss
ANT Port Return Loss
Input IP3
Input P1dB
Isolation
ANT-TX; Rx Mode
ANT-RX; Tx Mode
DS130510
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 11
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