User manual | RF5325 - Qorvo

RF5325
3.3V, 2.4GHZ 802.11b/g/n WIFI FRONT END
MODULE


C_TX
C_BT
BT
13
Integrated 2.5GHz b/g/n
Amplifier, SP3T Switch, Power
Detector Coupler
Single Supply Voltage 3.0V to
4.5V
POUT =18dBm, 11g, OFDM @
<4% EVM, 20dBm 11b Meeting 11b Spectral Mask
12 GND
GND 2
2F0 Filter
PDETECT
COUPLER
TX IN 3
10 GND
VREG 4
5
6
7
8
NC
9 VCC
VCC
IEEE802.11b/g/n WiFi Solutions
2.5GHz ISM Band Solutions
Portable Battery-Powered
Equipment
11 ANT
SP3T
Applications

14
VCC

15
PDETECT

16
RX OUT 1
Features

C_RX
Package Style: QFN, 16-pin, 3.0mmx3.0mmx0.5mm
Functional Block Diagram
Product Description
The RF5325 provides an 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, system footprint, and manufacturability cost. The integrated SP3T switch of the
RF5325 is capable of receiving WiFi and Bluetooth® simultaneously. The
device is provided in a 3.0mmx3.0mmx0.5mm, 16-pin package. This
module meets or exceeds the RF front end needs of IEEE802.11b/g/n
WiFi RF systems.
Ordering Information
RF5325SQ
RF5325SR
RF5325TR7
RF5325PCK-410
Standard 25 piece bag
Standard 100 piece reel
Standard 2500 piece reel
Fully assembled evaluation board tuned for 2.4GHz to
2.5GHz and 5 loose samples
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
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 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.
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RF5325
Absolute Maximum Ratings
Parameter
Rating
Unit
DC Supply Voltage
5.0
V
DC Supply Current
240
mA
Full Specification Temp Range (Full
Spec. Compliant)
-15 to +75
°C
Extreme Operating
(Reduced Performance)
+75 to +85
-30 to -15
°C
Storage Temperature
-40 to +150
°C
Antenna Port Nominal
Impedance
50

Maximum TX Input Power
for 11b/g (No Damage)
+5
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 performance or functional operation of the device under Absolute Maximum Rating conditions is not implied.
RoHS status based on EUDirective2002/95/EC (at time of this document revision).
Moisture Sensitivity
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.
MSL2
Parameter
Min.
Specification
Typ.
Max.
Unit
Condition
2.4GHz Transmit Parameters
Compliance
IEEE802.11b, IEEE802.11g/n,
FCC CFG 15.247, .205, .209
Conditions
Specifications met across VCC, VREG, and Temperature unless noted otherwise.
Frequency
2.4
2.5
GHz
Output Power
11g
17
dBm
VCC >3.3V, 54Mbps, OFDM, 64QAM meeting
EVM requirement
11b
20.5
dBm
VCC >3.3V, Measured at 1Mbps meeting
ACP1/ACP2 requirements
EVM*
3.0
4.0
%
POUT(g) =17dBm, 54Mbps OFDM VCC >3.3V,
50
ACP1
-38
-32
dBc
POUT =20.5dBm, IEEE802.11b, 1Mbps CCK
modulation
ACP2
-56
-52
dBc
POUT =20.5dBm, IEEE802.11b, 1Mbps CCK
modulation
Adjacent Channel Power
Gain
25
27
dB
Gain Variation
VCC (instantaneous)
0.7
dB/V
Frequency
-0.5
+0.5
dB
Voltage Detect
0.1
1.4
V
VCC range: 3.0V to 4.5V
2.4GHz to 2.5GHz
Power Detect
Input Resistance
10
Input Capacitance
Over POUT range 0dBm to 23dBm
k
5
pF
Sensitivity
POUT >10dBm
25
mV/dB
0<POUT <10dBm
8
mV/dB
*The EVM specification is obtained with a signal generator that has an EVM level <0.7%.
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RF5325
Parameter
Min.
Specification
Typ.
Max.
130
160
mA
VCC =3.3V, VREG =2.85V, RF POUT =17dBm,
11g, 50
160
200
mA
VCC =3.3V, VREG =2.85V, RF POUT =20.5dBm,
11b, 50
mA
VCC =3.3V, VREG =2.85V, and RF=OFF
Unit
Condition
2.4GHz Transmit Parameters,
cont’d
Current Consumption
ICC
Idle
110
IREG
2
5
mA
VREG =2.85V Typical
Leakage
5
10
A
VREG <0.2V
Power Supply
3.0
3.3
4.5
V
VREG
2.75
2.85
2.95
V
PA On
0.2
V
PA Off
Input/Output Impedance

50
Ruggedness
No damage
Output VSWR
10:1
Maximum: operating voltage, input power, temperature
Stability
Output VSWR
5:1
Harmonics
RBW=1MHz. Measured at 1Mbps.
Second
-33
-27
dBm
11b CCK BW=1MHz, POUT =20.5dBm,
4.80GHz to 5.00GHz
Third
-43
-40
dBm
11b CCK BW=1MHz, POUT =20.5dBm,
7.20GHz to 7.50GHz
Second
-33
-30
dBm
11g 6Mbps. OFDM, POUT =17dBm, 4.80GHz to
5.00GHz
Third
-48
-45
dBm
11g 6Mbps. OFDM, POUT =17dBm, 7.20GHz to
7.50GHz
1.0
S
Output stable to within 90% of final gain
Turn-On/Off Time
Antenna Port Impedance
Antenna port is a DC short to ground
Input
50

Receive
Output
50

Transmit
Switch Control Voltage
Low
High
0
2.70
0.2
V
4.50
V
Switch Control Current
10
A
Switch Control Speed
100
nsec
Per control line
ESD
DS110618
Human Body Model
TBD
V
EIA/JESD22-114A
Machine Model
TBD
V
EIA/JESD22-115A
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RF5325
Parameter
Min.
Specification
Typ.
Max.
Unit
Condition
2.4GHz Receive Parameters
Frequency
2.4
Insertion Loss
Noise Figure
Passband Ripple
2.5
0.5
0.8
dB
WiFi RX mode only
3.5
4.0
dB
WiFi RX and BT RX mode
0.5
0.8
dB
WiFi RX mode only
3.5
4.0
dB
WiFi RX and BT RX mode
+0.2
dB
-9.6
dB
30
A
2.5
GHz
0.8
dB
SP3T switch, all unused ports terminated into
their nominal impedance. Bluetooth® mode
only
WiFi RX and BT RX mode
-0.2
Output Return Loss
Output Impedance
GHz

50
Current Consumption
No external matching
Bluetooth® Parameters
Frequency
2.4
Insertion Loss
0.5
3.5
4.0
dB
+0.2
dB
Input/Output Power
8
dBm
Output Return Loss
-10
dB
Passband Ripple
-0.2
Output Impedance
50
Current Consumption
30

No external matching
A
Switch leakage current
*The EVM specification is obtained with a signal generator that has an EVM level <0.7%.
Isolation Table
Parameter
Min.
Typ.
Max.
Unit
WiFi RX to BT RX/TX
20
dB
WiFi TX to BT RX/TX
20
dB
WiFi RX to WiFi TX
20
dB
WiFi RX and BT RX Mode
9
dB
Switch Control Logic
Mode
C_RX
C_TX
C_BT
L
L
H
Bluetooth®
L
H
L
WiFi TX
H
L
L
WiFi RX
H
L
H
WiFi RX and BT RX mode
*The FEM can simultaneously receive WiFi and Bluetooth® in the WiFi RX and BT RX Mode.
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RF5325
Pin
1
2
3
4
Function
RX
GND
TX
VREG
5
PDETECT
6
VCC
7
8
9
10
11
12
13
14
15
16
VCC
N/C
VCC
GND
ANT
GND
BT
C_BT
C_TX
C_RX
Description
Receive port for 802.11b/g/n band. Internally matched to 50. DC block provided.
Ground.
RF input for the 802.11b/g/n PA. Input is matched to 50 and DC block is provided.
Digital enable pin for the 802.11b/g/n PA. This is an active high control. An external bypass capacitor may be
needed on the VREG line for decoupling purposes.
Power detector voltage for TX section. PDET voltage varies with output power. May need external decoupling
capacitor for module stability. May need external circuitry to bring output voltage to desired level.
Supply voltage for the bias circuit of the PA. Add an external 56pF bypass capacitor for low frequency decoupling.
Supply voltage for the first stage of the PA. Add an external 1nF capacitor for low frequency decoupling.
No connect.
Supply voltage for the second stage of the PA. Add an external 10nF capacitor for low frequency decoupling.
Ground.
Port matched to 50 and is a DC short to ground.
Ground.
RF bidirectional port for Bluetooth®. Input is matched to 50 and DC block is provided.
Switch control port. See switch truth table for proper level.
Switch control port. See switch truth table for proper level.
Switch control port. See switch truth table for proper level.
Package Drawing
DS110618
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RF5325
RX
1
GND
2
C_RX
C_TX
C_BT
BT
Pin Out
16
15
14
13
12
GND
11
ANT
3 x 3 x 0.45 mm
6 of 12
VREG
4
9
VCC
5
6
7
8
N/C
GND
VCC
10
VCC
3
PDET
TX
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support, contact RFMD at (+1) 336-678-5570 or [email protected]
DS110618
RF5325
Evaluation Board Schematic
C_TX
C_BT
C_RX
J3
BT
J2
RX OUT
J1
TX IN
VREG
50 strip
50 strip
R1
0
16
15
14
13
1
P1-1
12
2
11
3
10
4
9
J4
ANT
50 strip
P1-3
P1-4
5
6
7
C1
330 pF
L2
1.8 nH
N/C
VCC1
VREG
2
GND
3
PDETECT
VCC
4
HDR_1X4
VCC2
8
VCC_B
P1
1
C4
1 F
P2
4
GND
L1
3 nH
P2-3
3
C_RX
P2-2
2
C_TX
C3
0.1 F
P2-1
C_BT
1
HDR_1X4
C2
DNP
PDETECT
VCC
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RF5325
Theory of Operation
The RF5325 provides an integrated solution for WiFi 802.11 b/g/n and Bluetooth® systems. This single package Front End
Module (FEM) solution integrates the Power Amplifier (PA), Power Detector Coupler, and harmonic filtering for the transmit side.
The integrated SP3T switch is capable of simultaneous operation in WiFi and Bluetooth® receive modes by setting two of the
switch branches to a logic control "high."
The integrated harmonic filtering and matching of the RF5325 facilitates deployment on the customer's board by offering 50
interface at all RF ports. For best results, the board layout from the evaluation board should be copied as closely as possible in
particular the ground configuration underneath the FEM and around the RF traces and decoupling capacitors. There is an indicator pin labeled P1 ID that should be left as a no-connect on the PCB. This pin is directly connected to the ground pad of the
IC. For best performance it is recommended that voltage and RF lines do not cross under this pin. Gerber files of RFMD PCBA
designs can be provided upon request.
The RF5325 FEM can be connected directly to the battery without additional voltage regulators. This FEM requires a single
positive supply voltage (VCC), positive current control bias (VREG) supply, and a positive supply for switch controls.
WiFi Transmit Path
The RF5325 has a typical gain of 28dB from 2.4GHz to 2.5GHz, and delivers 18dBm typical output power under 54Mbps
OFDM modulation and 20dBm under 1Mbps 11b modulation. The operating voltage range to meet full specifications is from
3.0V to 4.5V. Current control optimization for the 802.11b/g/n systems is provided through one bias control input pin (VREG).
The VREG pin requires a regulated supply to maintain nominal bias current and a minimum voltage of 2.75V.
Out of Band Rejection
The RF5325 contains basic filtering components to produce bandpass responses for the transmit path. Due to space constraints inside the module, filtering is limited to a few resonant poles. Additional filters may need to be added outside the module depending upon the end-user's application.
WiFi and Bluetooth® Receive Paths
The 802.11b/g/n and Bluetooth® paths are designed to interface in a 50 impedance environment to minimize insertion
loss. The single-ended ports provide a nominal insertion loss of 0.5dB and a VSWR of 2:1. The RF5325 is designed so that the
SP3T switch allows for simultaneous operation of WiFi and Bluetooth® receive signals (refer to switch control table settings). In
this configuration, the SP3T switch acts as a 3dB splitter adding approximately 3dB of loss to each of the receive paths.
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RF5325
RF5325 Biasing Instructions:
• 802.11b/g/n Transmit
• Connect the FEM to a signal generator at the input and a spectrum analyzer at the output.
• Bias VCC to 3.3V first with VREG =0.0V
• Refer to switch operational truth table to set the control lines at the proper levels for WiFi TX.
• Turn on VREG to 2.85V (typ.). VREG controls the current drawn by the 802.11b/g/n power amplifier and the current
should quickly rise to ~100mA±20mA for a typical part but it varies based on the output power desired. Be
extremely careful not to exceed 3.4V on the VREG pin or the part may exceed device current limits.
•
802.11 b/g/n Receive
• To Receive WiFi set the switch control lines per the truth table below.
•
Bluetooth® Receive
• To Receive Bluetooth® set the switch control lines per the truth table below.
Switch Control Logic
Mode
C_RX
C_TX
C_BT
L
L
H
Bluetooth®
L
H
L
WiFi TX
H
L
L
WiFi RX
H
L
H
WiFi RX and BT RX mode
*The FEM can simultaneously receive WiFi and Bluetooth® in the WiFi RX and BT RX Mode.
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support, contact RFMD at (+1) 336-678-5570 or [email protected]
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RF5325
Evaluation Board Layout
Board Size 1.5” x 1.5”
Board Thickness 0.032”, Board Material FR-4, Multi-Layer
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RF5325
RF5325 Performance Graphs
18
34
16
32
14
30
12
28
10
26
EVM ( - 15C )
8
24
EVM ( + 25C )
GAIN (dB)
EVM (%)
RF5325 EVM and GAIN vs. TEMPERATURE and POWER
(VCC=3.3v, Vreg=2.85v, 64QAM 54Mbps, FREQ=2.45GHz, 10% Duty Cycle)
EVM ( + 65C )
6
22
GAIN ( - 15C )
GAIN ( + 25C )
4
20
GAIN (+65C)
2
18
0
16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
OUPUT POWER (dBm)
RF5325 EVM and GAIN vs. SUPPLY VOLTAGE and POWER
(Vreg=2.85v, 64QAM 54Mbps, FREQ=2.45GHz, 10% Duty Cycle, Temp=25C)
RF5325 ICC vs. TEMPERATURE and POWER
(VCC=3.3v, Vreg=2.85v, 64QAM 54Mbps, Freq=2450MHz, 10% Duty Cycle)
18
34
16
32
14
30
12
28
190
170
EVM (3.3V)
8
24
EVM (4.5V)
GAIN (3.0V)
6
ICC (mA)
26
EVM (3.0V)
GAIN (dB)
EVM (%)
150
10
22
110
GAIN (3.3V)
GAIN (4.5V)
4
130
20
TEMP = -15C
90
2
18
TEMP = +25C
TEMP = +65C
0
16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
70
22
1
2
3
4
5
6
7
8
9
OUPUT POWER (dBm)
11
12
13
14
15
16
17
18
19
20
21
22
OUPUT POWER (dBm)
RF5325 ICC vs. FREQUENCY and POWER
(VCC=3.3v, Vreg=2.85v, 64QAM 54Mbps, TEMP=25C, 10% Duty Cycle)
RF5325 ICC vs. SUPPLY VOLTAGE and POWER
(Vreg=2.85v, 64QAM 54Mbps, FREQ=2.45GHz, TEMP=25C, 10% Duty Cycle)
190
190
170
170
150
150
ICC (mA)
ICC (mA)
10
130
110
130
110
VCC = 3.0V
FREQ = 2.4GHz
90
90
VCC = 3.3V
FREQ = 2.45GHz
VCC = 4.5V
FREQ = 2.5GHz
70
70
1
2
3
4
5
6
7
8
9
10
11
12
13
OUPUT POWER (dBm)
DS110618
14
15
16
17
18
19
20
21
22
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
OUPUT POWER (dBm)
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RF5325
RF5325 POWER DETECTOR VOLTAGE vs. FREQUENCY and POWER
(VCC=3.3v, Vreg=2.85v, 64QAM 54Mbps, TEMP=25C, 10% Duty Cycle)
1.80
1.60
1.60
1.40
1.40
1.20
1.20
PDETECT VOLTAGE (V)
PDETECT VOLTAGE (V)
RF5325 POWER DETECTOR VOLTAGE vs. TEMPERATURE and POWER
(VCC=3.3v, Vreg=2.85v, 64QAM 54Mbps, Freq=2450MHz, 10% Duty Cycle)
1.80
1.00
0.80
0.60
TEMP = -15C
0.40
1.00
0.80
0.60
0.40
FREQ = 2.4GHz
TEMP = +25C
FREQ = 2.45GHz
0.20
0.20
FREQ = 2.5GHz
TEMP = +65C
0.00
0.00
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
1
2
3
4
5
6
7
8
9
OUPUT POWER (dBm)
10
11
12
13
14
15
16
17
18
19
20
21
22
OUPUT POWER (dBm)
RF5325 POWER DETECTOR VOLTAGE vs. SUPPLY VOLTAGE and POWER
(Vreg=2.85v, 64QAM 54Mbps, FREQ=2.45GHz, TEMP=25C, 10% Duty Cycle)
1.80
1.60
PDETECT VOLTAGE (V)
1.40
1.20
1.00
0.80
0.60
VCC = 3.0V
0.40
VCC = 3.3V
0.20
VCC = 4.5V
0.00
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
OUPUT POWER (dBm)
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DS110618

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