preliminary

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RFFM8511
4.9GHz to 5.85GHz 802.11a/n/ac WiFi
Front End Module
The RFFM8511 provides a complete integrated solution in a single front
end module (FEM) for WiFi 802.11a/n/ac systems. The ultra-small factor
and integrated matching minimizes layout area in the customer’s
application and greatly reduces the number of external components.
This simplifies the total front end solution by reducing the bill of
materials, system footprint, and manufacturing cost. The RFFM8511
integrates a 5GHz power amplifier (PA), single pole double throw switch
(SP2T), LNA with bypass, and a power detector coupler for improved
accuracy. The device is provided in a 2.5mm x 2.5mm x 0.40mm, 16-pin
QFN package.
LNA_EN
C_RX
GND
ANT
16
15
14
13
GND 1
12
GND
2
11
VCC
GND 3
10
VCC
VCC 4
9
Vmode
RX
7
5
6
PDET
PA_EN
8
GND
TX
Functional Block Diagram
Ordering Information
RFFM8511SB
Standard 5-piece sample bag
RFFM8511SQ
Standard 25-piece bag
RFFM8511SR
Standard 100-piece reel
RFFM8511TR7
Standard 2500-piece reel
RFFM8511PCK-410
Fully assembled eval board w/ 5-piece bag
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RF Micro Devices Inc. 7628 Thorndike Road, Greensboro, NC 27409-9421
For sales or technical support, contact RFMD at +1.336.678.5570 or [email protected].
®
®
RFFM8511
Package: QFN, 16-pin,
2.5mm x 2.5mm x 0.40mm
Features
■
POUT = +18.0dBm at 3.6V,
802.11ac 80MHz MCS9 256QAM
at 1.8% Dynamic EVM Compliance
■
POUT = +19.0dBm, 11n 20MHz
2.5% (-32dB)EVM
■
POUT = +21.0dBm at 3.6V,
802.11ac 80MHz MCS0 at
Spectral Mask Compliance
■
Input and Output Matched to 50Ω
■
Integrated 5GHz PA, SP2T Switch,
LNA, and PDET
■
Low Height Package, Suited for
Module and Chip On Board (CoB)
designs
■
Supports low power mode for
improved efficiency
Applications
■
Cellular Handsets
■
Mobile Devices
■
Tablets
■
Consumer Electronics
■
Gaming
■
Netbooks/Notebooks
■
TV/Monitors/Video
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DS140711
RF MICRO DEVICES and RFMD are trademarks of RFMD, LLC. BLUETOOTH is a trademark 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. ©2013, RF Micro Devices, Inc.
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RFFM8511
PRELIMINARY
Absolute Maximum Ratings
Parameter
Rating
DC Supply Voltage (No RF Applied)
6
V
PA Enable Voltage
-0.5 to 5
VDC
DC Supply Current
500
mA
Operating Temperature Range
-40 to +85
ºC
Storage Temperature
-40 to +150
ºC
Maximum TX Input Power for 11a/n (No Damage)
+12
dBm
LNA On Maximum RX input power (No damage)
+12
dBm
Bypass Mode Maximum RX input power (No damage)
+25
dBm
Moisture Sensitivity
Caution! ESD sensitive device.
Unit
RFMD Green: RoHS status based on EU
Directive 2011/65/EU (at time of this
document revision), 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.
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 performance or
functional operation of the device under Absolute
Maximum Rating conditions is not implied.
MSL2
Nominal Operating Parameters
Specification
Parameter
Unit
Min
Typ
Max
3.6
3.1
0
5.825
5.925
70
85
4.2
VCC
0.2
Condition
802.11a, 802.11n, 802.11ac
Compliance
Operating Frequency
Extended Frequency
Nominal Operating Temperature
Operating Temperature
Power Supply VCC
Control Voltage-high
Control Voltage-low
5.18
4.9
-10
-40
3.0
2.8
GHz
GHz
ºC
ºC
V
V
V
PA_EN, C_RX, LNA_EN, VMODE
T = -10°C to +70°C, VCC = 3.3V to 4.2V,
50% Duty Cycle unless otherwise noted
Transmit (TX-ANT) High
Power Mode
Output Power
17.0
80MHZ 802.11ac Dynamic EVM
Output Power
15.0
80MHZ 802.11ac Dynamic EVM
18.0
dBm
1.5
1.8
-36.5
-35.0
16.0
dB
dBm
1.5
1.8
%
-36.5
-35.0
dB
Output Power
19.0
20/40MHz 802.11n Dynamic EVM
2.5
3
%
-32.0
-30.5
dB
Output Power
16.5
20/40MHz 802.11n Dynamic EVM
dBm
17.5
dBm
2.5
3
-32.0
-30.5
T = -10°C to +70°C, VCC = 3.0V to 4.2V
T = 25°C, VCC = 3.6V
T = -10°C to +70°C, VCC = 3.0V to 4.2V
%
dB
40MHz 802.11n Spectral mask
Output Power
20
dBm
20/80MHz 802.11ac Spectral
mask Output Power
21
dBm
TX Port Return Loss
10
18
dB
ANT Port Return Loss
10
18
dB
DRAFT
T = 25°C, VCC = 3.6V
%
T = 25°C, VCC = 3.6V
RF Micro Devices Inc. 7628 Thorndike Road, Greensboro, NC 27409-9421
For sales or technical support, contact RFMD at +1.336.678.5570 or [email protected].
DRAFT
DS140711
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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RFFM8511
PRELIMINARY
Specification
Parameter
Unit
Min
Typ
Condition
Max
T = -10°C to +70°C, VCC = 3.3V to 4.2V,
50% Duty Cycle unless otherwise noted
Transmit (TX-ANT) High
Power Mode (continued)
Large Signal Gain
Gain flatness over any 80MHz BW
Gain flatness across band
25
28
23
28
-0.5
0.5
-1
Operating Current
Quiescent Current
dB
T = 25°C, VCC = 3.6V
dB
T = -10°C to +70°C, VCC = 3.0 to 4.2V
dB
1
dB
210
250
mA
POUT = +17dBm, T = 25°C, VCC = 3.6V
240
280
mA
POUT = +19dBm, T = 25°C, VCC = 3.6V
280
mA
POUT = 21dBm, T = 25°C, VCC = 3.6V
150
mA
PA_EN Current
70
150
uA
Second Harmonic
-45
-30
dBm/MHz
Third Harmonic
-45
-30
dBm/MHz
Power Detector Voltage
0.27
V
POUT = 0dBm
0.81
V
POUT = +17dBm
0.98
V
POUT = +21dBm
dB
3:1 VSWR
Variation from 0-360° load pull
-1.5
ANT-RX Isolation (TX enabled and
maximum power)
1.5
28
POUT = +21dBm, T = 25°C, VCC = 3.6V, 6Mbps 802.11a
dB
T= 25°C, VCC= 3.6V,50% Duty Cycle
unless otherwise noted
Transmit (TX-ANT) Low
Power Mode
Output Power
10.0
40/80MHz 802.11ac Dynamic EVM
1.5
1.8
dBm
-36.5
-35.0
Output Power
12.0
20MHz 802.11n Dynamic EVM
2.5
3.0
-32.0
-30.5
T = 25°C, VCC = 3.6V
%
dB
dBm
T = 25°C, VCC = 3.6V
%
dB
40MHz 802.11n Spectral mask
Output Power
11.0
dBm
20/80MHz 802.11ac Spectral
mask Output Power
12.0
dBm
0.27
V
POUT = 0dBm
0.50
V
POUT = +10dBm
Power Detector Voltage
T = 25°C, VCC = 3.6V
0.58
V
POUT = +12dBm
80MHz 802.11ac Operating
Current
150
mA
POUT = +10dBm
20MHz 802.11n Operating Current
160
mA
POUT = +12dBm
VMODE Control Line Current
160
Gain
24
500
27
µA
dB
T = +25°C, VCC = 3.0 to 4.2V, C_RX=LNA_EN=High,
PA_EN=Low, Unless otherwise noted.
Receive (ANT-RX)-LNA On
Gain
Gain flatness over any 80MHz BW
Gain flatness across band
Noise Figure
DRAFT
POUT = +10dBm, 80MHz 802.11ac
16
dB
-0.5
10
14
0.5
dB
-1
1
dB
3
dB
2.5
T = 25°C, VCC = 3.6V
RF Micro Devices Inc. 7628 Thorndike Road, Greensboro, NC 27409-9421
For sales or technical support, contact RFMD at +1.336.678.5570 or [email protected].
DRAFT
DS140711
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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RFFM8511
PRELIMINARY
Specification
Parameter
Unit
Min
Typ
9
12
ANT Port Return Loss
6
10
dB
Nominal Input P1dB
-8
-4
dBm
Rx Port Return Loss
Condition
Max
dB
Current Consumption
10
18
mA
LNA_EN Control Current
130
200
µA
LNA Turn On Time
400
600
nS
Receive (ANT-RX)-Bypass
Mode
T = 25°C, VCC = 3.6V
T = +25°C, VCC = 3.3to 4.2V, C_RX=LNA_EN=High,
PA_EN=Low, Unless otherwise noted.
LNA Bypass Current
Nominal Insertion Loss
2.0
10
µA
6
10
dB
RX Port Return Loss
10
20
ANT Port Return Loss
9
20
dB
Nominal Input P1dB
15
20
dBm
Control Line Impedance-PA_EN
75
kΩ
Control Line Impedance-LNA_EN
78
kΩ
Control Line Impedance-C_RX
27
Switch Control Current – High Each Line
5
100
µA
Switch Control Current – Low Each Line
0.5
10
µA
Switching Speed
100
500
ns
ESD – Human Body Model
1000
ESD – Charge Device Model
500
PA Turn-on Time
200
PA Stability
+20
T = 25°C, VCC = 3.6V
dB
T = 25°C, VCC = 3.6V
General Specifications
Maximum Input Power
Ruggedness
Leakage Current
DRAFT
2
MΩ
V
V
500
ns
10% to 90%
dBm
No spurious above -41.25dBm/MHz up to 4:1 VSWR
12
dBm
Into 50Ω, VCC = 3.3V, 25°C
12
dBm
6:1 VSWR, VCC = 3.3V, 25°C
5
dBm
10:1 VSWR, VCC = 3.3V, 25°C
10:1
VSWR
At typical operating conditions
10
uA
VCC = 4.8V, T = 25°C, RF OFF, All control lines floating
RF Micro Devices Inc. 7628 Thorndike Road, Greensboro, NC 27409-9421
For sales or technical support, contact RFMD at +1.336.678.5570 or [email protected].
DRAFT
DS140711
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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RFFM8511
PRELIMINARY
Switch Control Logic Truth Table
Operating Mode
PA_EN
LNA_EN
C_RX
Vmode
Standby
Low
Low
Low
Low
802.11a/n/ac TX High Power
High
Low
Low
Low
802.11a/n/ac TX Low Power
High
Low
Low
High
802.11a/n/ac RX Gain
Low
High
High
Low
802.11a/n/ac RX Bypass
Low
Low
High
Low
Notes:
•
PA_EN and TX switch control are tied together internally.
•
High = 2.8 to VCC. Low = 0V to 0.2V
Timing Diagram
Transmit Timing Diagram
Power ON / OFF Sequence
VCC
Apply 3.6v to pins
4, 10, and 11
Range is set Per the data sheet
PA_EN
For Transmit: apply
3.1v to pin-6
Level is set Per the data sheet
RF signal ON time is
0.5uS max. Set RF
input to required level.
TX RF Signal
LNA_EN
RX is Low during TX
Both controls must be
OFF during transmit.
The order is not critical.
Apply a max of 0.4v to
pins 15 and 16
C_RX
RX is Low during TX
Time
0.2uSec
0.2uSec
0.2uSec
0.2uSec
Note1: RF Signal for each specific mode is applied after the DC bias is applied
Note2: Total ON/OFF time includes from 10% of control switching to 90% of RF power
Note3: Listed values on diagram are typical. The maximum is 0.5us for each mode
DRAFT
RF Micro Devices Inc. 7628 Thorndike Road, Greensboro, NC 27409-9421
For sales or technical support, contact RFMD at +1.336.678.5570 or [email protected].
DRAFT
DS140711
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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RFFM8511
DRAFT
PRELIMINARY
Evaluation Board Schematic
DRAFT
RF Micro Devices Inc. 7628 Thorndike Road, Greensboro, NC 27409-9421
For sales or technical support, contact RFMD at +1.336.678.5570 or [email protected].
DRAFT
DS140711
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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RFFM8511
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PRELIMINARY
Pin Out
LNA_EN
C_RX
GND
ANT
16
15
14
13
GND 1
12
GND
2
11
VCC
GND 3
10
VCC
VCC 4
9
Vmode
RX
5
6
PDET
PA_EN
7
GND
8
TX
Package Drawing
DRAFT
RF Micro Devices Inc. 7628 Thorndike Road, Greensboro, NC 27409-9421
For sales or technical support, contact RFMD at +1.336.678.5570 or [email protected].
DRAFT
DS140711
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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RFFM8511
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PRELIMINARY
PCB Patterns
Notes:
1. Thermal vias for center slug “C” should be incorporated into the PCB design. The number and size of thermal vias will depend on the application, power,
dissipation and electrical requirements. Example of the number and size of vias can be found on the RFMD evaluation board layout (gerber files are
available upon request)
DRAFT
RF Micro Devices Inc. 7628 Thorndike Road, Greensboro, NC 27409-9421
For sales or technical support, contact RFMD at +1.336.678.5570 or [email protected].
DRAFT
DS140711
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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RFFM8511
PRELIMINARY
Pin Names and Descriptions
Pin
Name
1
GND
2
RX
3
GND
This pin is not connected internally and can be left floating or connected to ground.
4
VCC
Supply voltage for the LNA and PA Regulator. See applications schematic for biasing and bypassing
components.
5
PDET
Power detector voltage for the TX path. May need external series R/shunt C to adjust voltage level and to
filter RF noise.
6
PA_EN
Control voltage for the PA and TX switch. See truth table for proper settings.
7
GND
8
TX
9
VMODE
High/Low power mode control signal. VMODE can be low or floating for nominal conditions (high power mode).
Applying 2.8V or greater to this pin enables low power mode.
10
VCC
Supply voltage for the first and second stage of the PA. See applications schematic for biasing and bypassing
components.
11
VCC
Supply voltage for the final stage of the PA. See applications schematic for biasing and bypassing
components.
12
GND
This pin is not connected internally and can be left floating or connected to ground.
13
ANT
RF bidirectional antenna port matched to 50Ω. An External DC block is required
14
GND
This pin is not connected internally and can be left floating or connected to ground.
15
C_RX
Receive switch control pin. See switch truth table for proper level.
16
LNA_EN
Pkg Base
GND
DRAFT
Description
This pin is not connected internally and can be left floating or connected to ground.
RF output port for the 802.11a/n/ac LNA. This port is matched to 50Ω and DC blocked internally.
This pin is not connected internally and can be left floating or connected to ground.
RF input port for the 802.11a/n/ac PA. Input is matched to 50Ω and DC blocked internally
Control voltage for the LNA. When this pin is set to a LOW logic state, the bypass mode is enabled.
Ground connection. The backside of the package should be connected to the ground plane through a short
path, i.e., PCB vias under the device are recommended.
RF Micro Devices Inc. 7628 Thorndike Road, Greensboro, NC 27409-9421
For sales or technical support, contact RFMD at +1.336.678.5570 or [email protected].
DRAFT
DS140711
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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