RFFM8500

RFFM8500
4.9GHz TO 5.85GHz 802.11a/n/ac FRONT
END MODULE
16







IEEE802.11a/n/ac WiFi
Applications
Mobile Devices
Tablets
Consumer Electronics
Gaming
Netbooks and Notebooks
TV, Monitors, and Video
ANT
GND
RX
2
11
VCC
GND
3
10
VCC
VDD
4
9
N/C
Applications

GND
12
5
6
7
8
TX

13
1
N/C

Single Supply Voltage 3.0V to
4.8V
Integrated 5GHz Amplifier,
SPT2T TX/RX Switch, LNA,
and Power Detector Coupler
POUT = 16dBm, 11n, 54Mbps
at 2% Dynamic EVM
POUT = 16dBm, 11ac HT80
MCS9, 1.8% Dynamic EVM
14
GND
PA_EN

15
Pdet
Features
C_RX
LNA_EN
Package: Laminate, 16-pin, 3.0mm x 3.0mm x 1.05mm
Functional Block Diagram
Product Description
The RFFM8500 provides a complete integrated solution in a single Front
End Module (FEM) for WiFi 802.11a/n systems. The ultra small form factor and integrated matching minimizes the 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 manufacturability cost. The RFFM8500 integrates a
Power Amplifier (PA), Single Pole Double Throw switch (SP2T), LNA and a
power detector coupler for improved accuracy. The device is provided in a
3mm x 3mm x 1.0mm, 16-pin laminate package. This module meets or
exceeds the RF Front End needs of IEEE 802.11a/n WiFi RF systems.
Optimum Technology Matching® Applied
GaAs HBT
GaAs MESFET
InGaP HBT

SiGe BiCMOS
Si BiCMOS
SiGe HBT
GaAs pHEMT
Si CMOS
Si BJT
GaN HEMT
RF MEMS
RF MICRO DEVICES®, RFMD®, Optimum Technology Matching®, Enabling Wireless Connectivity™, PowerStar®, POLARIS™ TOTAL RADIO™ and UltimateBlue™ 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. ©2006, RF Micro Devices, Inc.
DS120904
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or [email protected].
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RFFM8500
Absolute Maximum Ratings
Parameter
Rating
Unit
DC Supply Voltage
6.0
VDC
Maximum TX and RX Input Power
(No Damage)
+10
dBm
Operating Ambient Temperature
-40 to +85
°C
Storage Temperature
-40 to +150
°C
Moisture Sensitivity
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 performance or functional operation of the device under Absolute Maximum Rating conditions 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 application circuitry and specifications at any time without prior notice.
MSL3
RFMD Green: RoHS compliant per EU Directive 2002/95/EC, 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.
Specification
Min.
Typ.
Max.
Parameter
Unit
Condition
Nominal Operating Conditions: VCC = 3.3V to 4.2V; SW Control High: VCC -0.2V; PA_EN = VCC-0.2V; POUT = 16dBm;
Freq=5.18GHz to 5.825GHz; Modulation MCS7 HT20; Temp
= -10°C to +70°C; Unless Otherwise Noted
Transmit Parameters
Frequency
5.15
Power Supply VCC
Switch Control Voltage-high
5.85
GHz
3
3.3
4.8
V
2.8
3.1
4.6
V
0
0.2
V
2.8
3.1
4.6
V
0
0.2
24
26
dB
VCC = 3.3V; Temp = 25ºC; Freq = 5.18GHz to 5.35GHz
26
28
dB
VCC = 3.3V; Temp = 25ºC; Freq = 5.35GHz to 5.825GHz
23
27
Switch Control Voltage-Low
PA_EN
ON
OFF
Gain
Dynamic EVM
Quiescent Current
V
dB
2
2.5
%
VCC = 3.3V; Temp = 25ºC
2
2.5
%
POUT = 15.5dBm
1.8
%
11ac HT80 MCS9; VCC = 3.3V; Temp = 25ºC; POUT = 16dBm
(see note)
mA
RF off; VCC = 3.3V; Temp = 25ºC
185
210
mA
RF off
230
245
mA
VCC = 3.3V; Temp = 25ºC
185
Operating Current
230
260
mA
PAEN Current
35
50
A
FEM Leakage Current
2
10
A
Second Harmonic
-45
Third Harmonic
PA_EN tracks with VCC. Do not use PA_EN hgher than VCC.
RF off; PAEN = OFF ; VCC = "ON"
-35
dBm
Fo = 4.9GHz to 5.3GHz: POUT = 18dBm; RBW = 1MHz
-43
dBm
Fo = 5.3GHz and 5.85GHz: POUT = 18dBm; RBW = 1MHz
-50
-43
dBm
Fo = 5.15GHz to 5.85GHz: POUT = 18dBm; RBW = 1MHz
Power Detector
POUT at 0dBm
350
375
400
mV
POUT at 16dBm
700
mV
500
600
TX Port Return Loss
9.6
15
dB
at TX input
ANT Port Return Loss
10
15
dB
in TX mode
PA Switching Time- VREF (on<->off)
200
600
PA Stability
ns
Unconditional into 4:1 VSWR, No spurious above 41.25dBm/MHz
Note: See RFFM8500 Application Note for 11ac applications schematic.
2 of 12
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or [email protected].
DS120904
RFFM8500
Specification
Min.
Typ.
Max.
Parameter
Unit
Condition
Operating Conditions: VDD = 3.3V to 4.2V;
SW Control High: VDD -0.2V; LNA_EN = 2.8V to 4.2V;
Freq=5.18GHz to 5.825GHz; Temp = -10°C to +70°C;
Unless Otherwise Noted
Receive Parameters
Frequency
5.15
LNA Voltage Supply ( VDD)
5.85
GHz
V
3
3.3
4.8
LNA_EN Voltage
2.8
3.1
4.6
V
Gain
13
15
16
dB
dB
11
NF
Rx Port Return Loss
8
ANT Port Return Loss
6
15
17
2.5
2.8
dB
2.5
3.7
dB
15
Temp=25°C; VDD=3.3v
Temp=25°C; VDD = 3.3V
dB
8
dBm
Input IP3
-3
dBm
Input P1dB
-13
IDD
13
17
mA
LNAEn Control Current
30
100
A
LNA Turn On Time
200
600
ns
0.5
1
A
100
ns
dBm
Isolation
TX-RX
32
dB
Switch Control Current - Each Line
Switching Speed
Measured from ANT to RX while in Tx mode
ESD
Human Body Model (HBM)
Charge Device Model
500
V
EIA/JESD22-114A RF pins
1000
V
EIA/JESD22-114A DC pins
1000
V
JESD22-C101C
Logic Control Table
Mode
PA_EN
LNA_EN
Standby
Low
Low
Low
802.11a/n TX
High
Low
Low
802.11a/n RX Gain
Low
High
High
DS120904
C_RX
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or [email protected].
3 of 12
RFFM8500
Pin
1
2
3
4
5
Function
GND
RX
GND
VDD
PDET
6
7
8
9
10
11
12
13
14
15
16
Pkg Base
PA_EN
NC
TX
NC
VCC
VCC
GND
ANT
GND
C_RX
LNA_EN
GND
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Description
Ground connection.
RF output port for the 802.11a/n LNA. Input is matched to 50 and DC block is provided.
Ground connection.
Supply voltage for the LNA. See applications schematic for biasing and bypassing components.
Power detector voltage for TX section. PDET voltage varies with output power. May need external capacitor
for noise decoupling.
Control voltage for the PA and TX switch. See truth table for proper settings.
Not connected.
RF input port for the 802.11a/n PA. Input is matched to 50 and DC block is provided.
Not connected.
Supply voltage for the PA. See applications schematic for biasing and bypassing components.
Supply voltage for the PA. See applications schematic for biasing and bypassing components.
Ground connection.
RF bidirectional antenna port matched to 50and is DC blocked internally.
Ground connection.
Receive switch control pin. See switch truth table for proper level.
Control voltage for the LNA.
Ground connection.
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or [email protected].
DS120904
RFFM8500
Package Drawing
DS120904
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or [email protected].
5 of 12
RFFM8500
PCB Patterns
Notes:
1. Shaded area represents Pin 1 location.
2. 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).
6 of 12
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or [email protected].
DS120904
RFFM8500
16
DS120904
15
14
ANT
GND
C_RX
LNA_EN
Pin Out
13
RX
2
11
VCC
GND
3
10
VCC
VDD
4
9
N/C
5
6
7
8
TX
GND
N/C
12
PA_EN
1
Pdet
GND
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or [email protected].
7 of 12
RFFM8500
Applications Schematic
LNA_EN
C_RX
ANT
16
RX
15
14
13
1
12
2
11
3
10
VCC
1uF
Vdd
4
9
NC
0.1uF
5
6
7
8
N/C
Pdet
PA_EN
TX
Note:
1. Pins 1, 3, 7, 9, 12, and 14 are not connected internally. These pins can be left floating or grounded. It is recommended to
follow the RFMD evaluation board layout.
8 of 12
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or [email protected].
DS120904
RFFM8500
RFFM8500 Evaluation Board Layers
DS120904
Top Layer
Mid Layer 1
Mid Layer 2
Bottom Layer
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or [email protected].
(+1) 336-678-5570
[email protected]
9 of 12
RFFM8500
RFFM8500 Transmit Performance Plots
RFFM8500: EVM vs. Output Power vs. Temperature
(Freq=5180MHz; MCS7 HT20; Vcc=3.3v; PA_EN=3.1v; 50% duty cycle)
RFFM8500: EVM vs. Output Power vs. Temperature
(Freq=5650MHz; MCS7 HT20; Vcc=3.3v; PA_EN=3.1v; 50% duty cycle)
12
9
8
10
7
6
EVM (%)
EVM (%)
8
6
5
4
3
4
2
25 C
2
25 C
-10 C
-10 C
1
+70 C
0
+70 C
0
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
0
1
2
3
4
5
6
7
Output Power (dBm)
8
9
10
11
12
13
14
15
16
17
18
19
20
Output Power (dBm)
RFFM8500: EVM vs. Output Power vs. Temperature
(Freq=5825MHz; MCS7 HT20; Vcc=3.3v; PA_EN=3.1v; 50% duty cycle)
RFFM8500: GAIN vs. Output Power vs. Temperature
(Freq=5180MHz; MCS7 HT20; Vcc=3.3v; PA_EN=3.1v; 50% duty cycle)
10
34
32
9
30
8
28
7
26
GAIN (dB)
EVM (%)
6
5
4
24
22
20
18
3
16
25 C
2
+70 C
1
25 C
14
-10 C
-10 C
+70 C
12
0
10
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
0
1
2
3
4
5
6
7
8
Output Power (dBm)
RFFM8500: GAIN vs. Output Power vs. Temperature
(Freq=5650MHz; MCS7 HT20; Vcc=3.3v; PA_EN=3.1v; 50% duty cycle)
10
11
12
13
14
15
16
17
18
19
20
RFFM8500: GAIN vs. Output Power vs. Temperature
(Freq=5825MHz; MCS7 HT20; Vcc=3.3v; PA_EN=3.1v; 50% duty cycle)
36
36
34
34
32
32
30
30
28
28
GAIN (dB)
GAIN (dB)
9
Output Power (dBm)
26
24
22
26
24
22
20
20
25 C
18
25 C
18
-10 C
16
-10 C
16
+70 C
14
+70 C
14
0
1
2
3
4
5
6
7
8
9
10
11
12
Output Power (dBm)
10 of 12
13
14
15
16
17
18
19
20
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Output Power (dBm)
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or [email protected].
DS120904
RFFM8500
RFFM8500 Transmit Performance Plots
RFFM8500: Operating Current vs. Output Power vs. Temperature
(Freq=5650MHz; MCS7 HT20; Vcc=3.3v; PA_EN=3.1v; 50% duty cycle)
0.3
0.3
0.25
0.25
ICC (A)
ICC (A)
RFFM8500: Operating Current vs. Output Power vs. Temperature
(Freq=5180MHz; MCS7 HT20; Vcc=3.3v; PA_EN=3.1v; 50% duty cycle)
0.2
0.15
0.2
0.15
25 C
25 C
-10 C
-10 C
+70 C
+70 C
0.1
0.1
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
0
1
2
3
4
5
6
7
8
Output Power (dBm)
9
10
11
12
13
14
15
16
17
18
19
20
Output Power (dBm)
RFFM8500: Operating Current vs. Output Power vs. Temperature
(Freq=5825MHz; MCS7 HT20; Vcc=3.3v; PA_EN=3.1v; 50% duty cycle)
0.3
ICC (A)
0.25
0.2
0.15
25 C
-10 C
+70 C
0.1
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Output Power (dBm)
DS120904
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or [email protected].
11 of 12
RFFM8500
RFFM8500 Receive Performance Plots
RFFM8500: RX Operating Current vs. Frequency vs. Temperature
(Vdd=3.3v; LNA_EN=3.1v)
20
20
18
18
16
16
14
14
12
12
Idd (mA)
GAIN (dB)
RFFM8500: RX GAIN vs. Frequency vs. Temperature
(Vdd=3.3v; LNA_EN=3.1v)
10
10
8
8
6
6
25 C
4
25 C
4
-10 C
0
5150
-10 C
+70 C
2
5180
5320
5650
5825
+70 C
2
5875
0
5150
5180
5320
Frequency (MHz)
5650
5825
5875
Frequency (MHz)
RFFM8500: RX Noise Figure vs. Frequency vs. Temperature
(Vdd=3.3v; LNA_EN=3.1v)
5
4
NF (dB)
3
2
25 C
1
-10 C
+70 C
0
4900
5150
5180
5320
5650
5825
5875
5900
Frequency (MHz)
12 of 12
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or [email protected].
DS120904