RFMD RF5300PCBA-41X

RF5300
RF53003V,
5GHz Linear
Power Amplifier
3V, 5GHz LINEAR POWER AMPLIFIER
„
„
„
„
„
„
IEEE802.11a/n WLAN Applications
HyperLAN
Wireless LAN Systems
Commercial and Consumer
Systems
Portable Battery-Powered
Equipment
Spread-Spectrum and MMDS
Systems
GND
PWR DET
12 GND
GND 1
11 RF OUT
RF IN 2
Input
Match
Interstage
Match
Interstage
Match
Output
Match
10 RF OUT
RF IN 3
GND 4
9 GND
Bias
Bias
Applications
„
13
5
6
7
8
VCC3
„
14
VREG3
„
15
GND
„
Single Power Supply 3.0V to
5.0V
50Ω Input/Output Impedance
30dB Gain (typ. UNII-1 and 2)
High Linearity
4900MHz to 5850MHz Frequency Range
16
VREG1&2
„
VCC2
Features
VCC1
RoHS Compliant & Pb-Free Product
Package Style: QFN, 16-Pin, 3 x 3
Functional Block Diagram
Product Description
The RF5300 is a linear, medium-power, high-efficiency amplifier IC
designed specifically for battery-powered WLAN applications such as PC
cards, mini PCI, and compact flash applications. The device is manufactured on an advanced Gallium Arsenide Heterojunction Bipolar Transistor
(HBT) process, and has been designed for use as the final RF amplifier in
5GHz WLAN and other spread-spectrum transmitters. The device is provided in a 16-pin leadless chip carrier with a backside ground. The
RF5300 is designed to maintain linearity over a wide range of supply voltage and power output. The RF5300 is designed to reduce end-product
BOM count by integrating all matching circuitry onto the chip.
Ordering Information
RF5300
RF5300PCBA-41X
9GaAs HBT
GaAs MESFET
InGaP HBT
3V, 5GHz Linear Power Amplifier
Fully Assembled Evaluation Board
Optimum Technology Matching® Applied
SiGe BiCMOS
Si BiCMOS
SiGe HBT
GaAs pHEMT
Si CMOS
Si BJT
GaN HEMT
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.
Rev A9 DS070820
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or [email protected]
1 of 10
RF5300
Absolute Maximum Ratings
Parameter
Rating
Unit
Supply Voltage
-0.5 to +6.0
VDC
Power Control Voltage (VREG)
-0.5 to 3.5
V
DC Supply Current
600
mA
Input RF Power
+10
dBm
-40 to +85
°C
-40 to +150
°C
Operating Ambient Temperature
Storage Temperature
Moisture sensitivity
JEDEC Level 3
Parameter
Min.
Specification
Typ.
Max.
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).
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.
Unit
Condition
T=25°C, VCC =3.3V, VREG =2.8V,
Freq=4900MHz to 5850MHz
Overall
Frequency Range
4900 to 5850
MHz
Output Power
With 802.11a modulation (54Mbit/s) meeting
spectral mask and EVM requirements
VCC =3.3V
16
18
EVM
VCC =3.3V
2.7
20
EVM
Gain (RFPOUT =+15dBm)
Power Detect (P_detect) Voltage
F=5150MHz to 5350MHz
28
F=4900MHz to 5850MHz
%
dBm
4
26
dBm
dBm
4
19
F=4900MHz to 5000MHz,
F=5700MHz to 5850MHz
%
18
EVM
VCC =5.0V
dBm
F=4900MHz to 5850MHz
%
dB
F=4900MHz to 5000MHz
29
30
dB
F=5150MHz to 5350MHz
24
26
dB
F=5700MHz to 5850MHz
0.50
0.65
0.70
VDC
RF POUT =+11dBm (4900MHz to 5850MHz)
1.1
1.3
1.5
VDC
RF POUT =+18dBm (4900MHz to 5850MHz)
1.3
1.5
1.7
VDC
RF POUT =+19dBm (4900MHz to 5850MHz)
Power Supply
Operating Voltage
Current Consumption
3.0 to 5.0
V
265
mA
POUT =18dBm, VCC =3.3V, VREG =+2.8V
195
VREG Current (Total)
2 of 10
mA
Idle current, VCC =3.3V, VREG =2.8V
5
10
mA
VCC =3.3V
10
15
mA
VCC =5.0V
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or [email protected]
Rev A9 DS070820
RF5300
Pin
1
2
Function
GND
RF IN
Description
Interface Schematic
Ground.
RF input. Input is matched to 50Ω and DC block is provided internally.
VCC1
INTERSTAGE
MATCH
INPUT
MATCH
3
4
5
RFIN
GND
VREG1&2
Same as pin 2.
See pin 2.
Ground.
First and second stage input bias. This pin requires a regulated supply to
maintain nominal bias current.
VREG1
BIAS
VREG2
BIAS
GND1
6
7
VREG3/
GND
VREG3
8
VCC3
9
10
GND
RF OUT
Ground for third stage bias circuit. Attach to RF ground approximately
100mils to ground from package.
See pin 5.
Third stage input bias. This pin requires a regulated supply to maintain a
nominal bias current.
Third stage supply bias. This pin is sensitive to bypass capacitors which
should be placed approximately 100mils from package and resonate
5GHz to ground.
Ground.
RF output. Output is matched to 50Ω and DC block is provided.
VCC2
OUTPUT
MATCH
11
12
13
14
15
RF OUT
GND
PWR DET
GND
VCC2
16
Pkg
Base
VCC1
GND
Rev A9 DS070820
BIAS
GND2
Same as pin 10.
RF OUT
See pin 10.
Ground.
Provides an output voltage proportional to the RF level.
Ground.
Supply voltage for the second stage. Bypass capacitor is needed to provide
isolation from VCC1 and VCC3.
Supply voltage for the first stage.
Ground connection. The backside of the package should be connected to
the ground plane through a short path (i.e., vias under the device will be
required).
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or [email protected]
3 of 10
RF5300
Package Drawing
1.70
0.28
TYP
0.18
3.00
Pin 1 ID
A
Pin 1 ID
0.50 TYP
3.00
0.15 C
B
2 PLCS
0.15 C
2 PLCS
1.70
0.40
TYP
0.20
0.05
0.10 M C A B
0.203 REF
0.1 C
Dimensions in mm.
Shaded lead is pin 1.
4 of 10
0.925
0.775
0.102 REF
C
0.08 C
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or [email protected]
Rev A9 DS070820
RF5300
Theory of Operation
The RF5300 is a three-stage device with a nominal gain of 28dB to 30dB in the 4.9GHz to 5.850GHz ISM band. The RF5300
is designed primarily for IEEE802.11a/n WLAN applications where the available supply voltage and current are limited. This
amplifier will operate to (and below) the lowest expected voltage made available by a typical PCMCIA slot in a laptop PC, and
will maintain required linearity at decreased supply voltages.
The RF5300 requires only a single positive supply of 3.0V nominal (or greater) to operate to full specifications. Power control is
provided through two bias control input pins (VREG1, VREG2, and VREG3), but in most applications these are tied together and
used as a single control input.
There is no external matching required on the input and output of the part, thus allowing minimal bill of material (BOM) parts
count in end applications. Both the input and the output of the device are DC-blocked.
For best results, the PA circuit layout from the evaluation board should be copied as closely as possible, particularly the ground
layout and ground vias. Other configurations may also work, but the design process is much easier and quicker if the layout is
copied from the RF5300 evaluation board. Gerber files of our designs are available on request.
The RF5300 is not a difficult part to implement, but care in circuit layout and component selection is always advisable when
designing circuits to operate at 5GHz.
It is important to isolate VCC1 from other RF and low-frequency bypass capacitors on this supply line. This can be accomplished using a suitably-long transmission line which is RF shorted on the other end as described above. Ideally the length of
this line will be a quarter wavelength, but it only needs to be long enough so that the effects of other supply bypass capacitors
on the VCC1 line are minimized. If board space is a concern, this isolation can also be accomplished with an RF choke inductor
or ferrite bead.
The RF5300 has primarily been characterized with a voltage on VREG1, VREG2, and VREG3 of 2.8VDC. However, the RF5300
will operate from a wide range of control voltages. If you prefer to use a control voltage that is significantly different than
2.8VDC, contact RFMD Sales or Applications Engineering for additional data and guidance.
Rev A9 DS070820
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or [email protected]
5 of 10
RF5300
Evaluation Board Schematic
VCC1
PDETECT
P1
P1-1
1
PDETECT
P1-2
2
VCC1
3
GND
4
VREG
P1-1
C2
1 pF
16
HDR_1X4
J1
RF IN
50 Ω μstrip
C1
1 pF
L1
4.7 nH
15
14
13
1
12
2
11
3
10
4
9
5
6
7
50 Ω μstrip
8
C4
5 pF
R1
0Ω
J2
RF OUT
C3
2 pF
R2
0Ω
C5
5 pF
C6
1 nF
C7
4.75 μF
VREG
6 of 10
VCC1
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or [email protected]
Rev A9 DS070820
RF5300
Evaluation Board Layout
Board Size 1.2” x 1.2”
Board Thickness 0.032”, Board Material FR-4, Multi-Layer
Rev A9 DS070820
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or [email protected]
7 of 10
RF5300
Typical Gain versus POUT
VCC=3.3V, VREG=2.8V @ 25°C and @ 50% Duty Cycle
Typical EVM versus POUT
VCC=3.3V, VREG=2.8V @ 25°C and @ 50% Duty Cycle
10.0
38.0
9.0
36.0
8.0
34.0
7.0
32.0
6.0
EVM (%)
Gain (dB)
40.0
30.0
5.0
28.0
4.0
26.0
3.0
24.0
2.0
Gain Vs Pout @ 4900MHz"
Gain Vs Pout @ 5500MHz
22.0
EVM Vs Pout @ 4900MHz"
EVM Vs Pout @ 5500MHz
EVM Vs Pout @ 5850MHz
1.0
Gain Vs Pout @ 5850MHz
20.0
0.0
0.0
2.0
4.0
6.0
8.0
10.0
12.0
14.0
16.0
18.0
20.0
22.0
0.0
2.0
4.0
6.0
8.0
POUT (dBm)
Typical ICC versus POUT
VCC=3.3V, VREG=2.8V @ 25°C and @ 50% Duty Cycle
12.0
14.0
16.0
18.0
20.0
22.0
Typical IREG versus POUT
VCC=3.3V, VREG=2.8V @ 25°C and @ 50% Duty Cycle
0.020
0.45
0.018
0.40
0.016
0.35
0.014
0.30
0.012
IREG (mA)
ICC (A)
0.50
10.0
POUT (dBm)
0.25
0.010
0.20
0.008
0.15
0.006
0.10
0.004
ICC Vs Pout @ 4900MHz"
ICC Vs Pout @ 5500MHz
ICC Vs Pout @ 5850MHz
0.05
Ireg Vs Pout @ 4900MHz"
Ireg Vs Pout @ 5500MHz
Ireg Vs Pout @ 5850MHz
0.002
0.00
0.000
0.00
2.00
4.00
6.00
8.00 10.00 12.00 14.00 16.00 18.00 20.00 22.00
POUT (dBm)
0.0
2.0
4.0
6.0
8.0
10.0
12.0
14.0
16.0
18.0
20.0
22.0
POUT (dBm)
Typical PDET versus POUT
VCC=3.3V, VREG=2.8V @ 25°C and @ 50% Duty Cycle
2.0
1.8
1.6
1.4
PDET (V)
1.2
1.0
0.8
0.6
0.4
Pdet Vs Pout @ 4900MHz"
Pdet Vs Pout @ 5500MHz
Pdet Vs Pout @ 5850MHz
0.2
0.0
0.0
2.0
4.0
6.0
8.0
10.0
12.0
14.0
16.0
18.0
20.0
22.0
POUT (dBm)
8 of 10
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or [email protected]
Rev A9 DS070820
RF5300
Rev A9 DS070820
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or [email protected]
9 of 10
RF5300
10 of 10
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or [email protected]
Rev A9 DS070820