RF6575 Data Sheet

RF6575
3.0V TO 3.6V, 2.4GHz FRONT END MODULE



NC
VBAT
VBAT
NC
11
GND
16
10
VBAT
GND
17
9
GND
RF_COM
18
8
ANT1
GND
19
7
GND
20
6
ANT2
TX_EN
Applications
1
ZigBee®
802.15.4 Based
Systems for Remote
Monitoring and Control
WiFi 802.11b/g
2.4GHz ISM band
applications
Smart Meters for Energy
Management
LNA_VCC

12
2
3
4
5
GND

13
ANT2_EN

TX Output Power = 22dBm
Integrated RF Front End
Module with TX/RX switch,
PA, filter, LNA, and DP2T
switch.
50 single-ended
bidirectional Transceiver
interface.
14
ANT1_EN

15
RX_EN
Features
GND
Package Style: QFN, 20-Pin, 3.5mmx3.5mmx0.5mm
Functional Block Diagram
Product Description
The RF6575 integrates a complete solution in a single Front End Module (FEM) for
WiFi and ZigBee® applications in the 2.4GHz to 2.5GHz band. This FEM integrates
the PA plus harmonic filter in the transmit path. The RF6575 has an integrated LNA.
Also, the RF6575 provides a single balanced TDD access for RX and TX paths along
with two ports on the output for connecting a diversity solution or a test port. The
device is provided in a 3.5mm x 3.5mm x 0.5, 20-pin QFN package.
Ordering Information
RF6575
RF6575SQ
RF6575SR
RF6575TR13
RF6575PCK-410
3.3V Front End Module for AMR systems in the 2.4GHz to
2.5GHz Band
Standard 25 piece bag
Standard 100 piece reel
Standard 2500 piece reel
Fully assembled evaluation board and 5 loose pieces
Optimum Technology Matching® Applied
GaAs HBT
GaAs MESFET
InGaP HBT

SiGe BiCMOS
Si BiCMOS
SiGe HBT
GaAs pHEMT
Si CMOS
Si BJT
GaN HEMT
BiFET HBT
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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support, contact RFMD at (+1) 336-678-5570 or [email protected].
1 of 9
RF6575
Absolute Maximum Ratings
Parameter
DC Supply Voltage
DC Supply Current
Rating
Unit
5.5
V
250
mA
Operating Case Temperature
-40 to +85
°C
Storage Temperature
-40 to +150
°C
ESD Human Body Model RF Pins
1000
V
ESD Human Body Model All Other
Pins
500
V
500
V
ESD Charge Device Model All Pins
Moisture Sensitivity Level
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.
MSL 2
Maximum Input Power to PA
+10
dBm
Maximum Input Power to LNA
+5
dBm
Parameter
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.
Min.
Specification
Typ.
Max.
Unit
Condition
Specifications must be met across supply voltage, control voltage, and temperature ranges
unless otherwise specified.
Overall
VBATT
3.0
3.3
3.6
VDC
Operating Temperature Range
-40
+25
+85
°C
ZO
50

Off Mode Current
1
A
All logic low
TX Path
Frequency
2400
2483
MHz
Input Return Loss
12
dB
Output Return Loss
9
dB
Transmit Path Gain
24
Gain Flatness
-0.8
Rated Output Power
28
dB
+0.8
22
dBm
20
Supply Current
Thermal Resistance
dBm
VSWR No Damage
8:1
Gain Settling Time
2 of 9
All conditions
mA
PO =22dBm 802.15.4 OQPSK
170
mA
PO =20dBm 802.15.4 OQPSK
130
mA
PO =16dBm 802.15.4.OQPSK
66
°C/W
3rd harmonic level
4:1
Nominal conditions
200
2nd harmonic level
VSWR Stability and Load
dB
1
VCC = 3.6V, POUT = 22dBm, TREF = 85°C
-42
dBm/MHz
PO =20dBm
-42
dBm/MHz
PO =20dBm
2
uS
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support, contact RFMD at (+1) 336-678-5570 or [email protected].
DS111216
RF6575
Parameter
Min.
Specification
Typ.
Unit
Max.
Condition
RX Path
Frequency
2400
Gain
10
Noise Figure
2483
MHz
13
15.5
dB
2.5
3
dB
Current
8
mA
IIP3
7
dBm
Gain Flatness
-0.5
Input Return Loss
12
Output Return Loss
Maximum Input Power
+0.5
dB
15
dB
9.5
dB
5
dBm
Antenna Switch
RF-to-Control Isolation
50
RF-to-ANT Isolation
17
20
dB
RF-to-RF Isolation
18
20
T/R Switching Time
dB
dB
1
s
V
Logic Level “HIGH” Input Voltage
VCC -0.3
=VCC
Logic Level “LOW” Input Voltage
0.0
+0.2
V
10
uA
Input Source Current at Logic
“HIGH”
5
Switch Leakage Current at Logic
“LOW”
0.5
uA
Control Logic
DS111216
Switch Control Logic
TX_EN
RX_EN
ANT1_EN
Tx, Antenna 1
High
Low
High
Low
Tx, Antenna 2
High
Low
Low
High
Rx, Antenna 1
Low
High
High
Low
Rx, Antenna 2
Low
High
Low
High
All Off
Low
Low
Low
Low
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support, contact RFMD at (+1) 336-678-5570 or [email protected].
ANT2_EN
3 of 9
RF6575
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
Function
LNA_VCC
RX_EN
ANT1_EN
ANT2_EN
GND
ANT2
GND
ANT1
GND
VBAT
N/C
VBAT
VBAT
N/C
GND
GND
GND
RF_COM
19
20
GND
TX_EN
4 of 9
Description
Voltage supply for the LNA.
Enable voltage for the LNA and receive switch. See logic table for operation.
Control pin for Antenna 1 switch. See logic table for operation.
Control pin for Antenna 2 switch. See logic table for operation.
Ground.
This is a common port (antenna). It is matched to 50 and DC block is provided internally.
Ground.
This is a common port (antenna). It is matched to 50 and DC block is provided internally.
Ground.
Voltage supply for PA 2nd stage. An external 1uF capacitor might be needed for low frequency decoupling.
No connect.
Voltage supply for PA 1st stage. An external 1uF capacitor might be needed for low frequency decoupling.
Voltage supply (control circuitry). An external 1uF capacitor might be needed for low frequency decoupling.
No Connect.
Ground.
Ground.
Ground.
Bi-directional transmit/receive port for interfacing to TXVR SOIC. It is matched to 50 and DC block is provided
internally.
Ground.
Enable voltage for the PA and transmit switch. See logic table for operation.
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or [email protected].
DS111216
RF6575
Package Drawing
DS111216
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support, contact RFMD at (+1) 336-678-5570 or [email protected].
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RF6575
Evaluation Board Schematic
VCC
C2
0.1F
(0201)
L2
3.0nH
(0402)
C3
1.0F
(0402)
L3
1.8nH
(0402)
15
14
13
12
11
16
10
17
9
C4
1pF Hi-Q
(0201)
ANT1 ~ 50 strip
J1
RF Com
RF Com ~ 50 strip
TX_EN
U1
RF6575
18
8
19
7
20
6
1
2
3
4
5
L4
2.7nH Hi-Q
(0201)
L5
2.7nH Hi-Q

ANT2 ~ 50 strip
VCC
C1
0.1F
(0201)
L1
3.0nH
(0402)
ANT1_EN
RX_EN
6 of 9
J2
ANT1
C5
1pF Hi-Q
(0201)
J3
ANT2
ANT2_EN
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or [email protected].
DS111216
RF6575
PCB Design Requirements
PCB Surface Finish
The PCB surface finish used for RFMD's qualification process is electroless nickel, immersion gold. Typical thickness is 3inch
to 8inch gold over 180inch nickel.
PCB Land Pattern Recommendation
PCB land patterns for RFMD components are based on IPC-7351 standards and RFMD empirical data. The pad pattern shown
has been developed and tested for optimized assembly at RFMD. The PCB land pattern has been developed to accommodate
lead and package tolerances. Since surface mount processes vary from company to company, careful process development is
recommended.
PCB Metal Land and Solder Mask Pattern
A = 0.390 x 0.430 (mm) Typ Rounded Rectangle 50%
B = 0.430 x 0.390 (mm) Typ Rounded Rectangle 50%
C = 2.340 (mm) Sq Rounded Rectangle 5%
A = 0.250 x 0.290 (mm) Typ Rounded Rectangle 50%
B = 0.290 x 0.250 (mm) Typ Rounded Rectangle 50%
C = 2.200 (mm) Sq Rounded Rectangle 5%
2.000 Typ
2.000 Typ
0.500 Typ
A
A
A
A
0.500 Typ
A
A
Pin 1
B
0.500 Typ
B
B
B
C
B
A
A
B
B
2.000 Typ
B
C
B
B
A
A
B
0.543 Typ
A
A
0.500 Typ
1.000 Typ
B
B
A
Pin 1
B
B
A
B
B
B
B
B
1.000 Typ
2.000 Typ
0.543 Typ
A
A
1.000 Typ
A
A
A
A
0.543 Typ
1.000 Typ
PCB SOLDER MASK PATTERN
PCB METAL LAND PATTERN
A = 0.225 x 0.261 (mm) Typ Rounded Rectangle 10%
B = 0.261 x 0.225 (mm) Typ Rounded Rectangle 10%
C = 0.900 (mm) Sq Typ Rounded Rectangle 10%
2.000 Typ
0.500 Typ
A
Pin 1
B
0.500 Typ
A
A
A
A
B
0.400 Typ
C
B
C
B
1.600 Typ
B
B
B
B
C
C
2.000 Typ
B
B
0.543 Typ
A
0.543 Typ
A
A
A
A
0.400 Typ
1.600 Typ
PCB STENCIL PATTERN
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, the power dissipation, and this electrical requirements. Example of the number and size of vias can be
found on the RFMD evaluation board layout
DS111216
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support, contact RFMD at (+1) 336-678-5570 or [email protected].
7 of 9
RF6575
.
Input Power versus Output Power
(Over Temperature at 2441.5 MHz)
VCC = 3.3V; TX_EN = 3.0V
Input Power versus Output Power
VCC = 3.3V; TX_EN = 3.0V
10
10
5
5
0
Input Power (dBm)
Input Power (dBm)
0
-5
-10
-15
-20
2400 MHz
-25
2441.5 MHz
-30
2483 MHz
-5
-10
-15
-20
-40 °C
-25
25 °C
-30
85 °C
-35
-35
0
2
4
6
8
10
12
14
16
18
20
0
22
2
4
6
8
10
12
14
16
18
20
22
Output Power (dBm)
Output Power (dBm)
Gain versus Output Power
VCC = 3.3V; TX_EN =3.0V
Gain versus Output Power
(Over Temperature at 2441.5 MHz)
VCC = 3.3V; TX_EN = 3.0V
50
32
45
40
35
Gain (dB)
Gain (dB)
27
22
25
20
15
2400 MHz
17
30
-40 °C
10
2441.5 MHz
25 °C
5
2483 MHz
85 °C
0
12
0
2
4
6
8
10
12
14
16
18
20
0
22
2
4
6
8
Output Power (dBm)
10
12
14
16
18
20
22
Output Power (dBm)
Operating Current versus Output Power
VCC = 3.3V; TX_EN = 3.0V
Operating Current versus Output Power
(Over Temperature at 2441.5 MHz)
VCC = 3.3V; TX_EN = 3.0V
0.25
Operating Current (mA)
Operating Current (mA)
0.25
0.2
0.15
0.1
2400 MHz
0.05
2441.5 MHz
0.2
0.15
0.1
-40 °C
0.05
25 °C
85 °C
2483 MHz
0
0
0
2
4
6
8
10
12
Output Power (dBm)
8 of 9
14
16
18
20
22
0
2
4
6
8
10
12
14
16
18
20
22
Output Power (dBm)
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support, contact RFMD at (+1) 336-678-5570 or [email protected].
DS111216
RF6575
TX S21 versus Frequency
(Over Temperature )
VCC = 3.3V; TX_EN =3.0V
60
50
S21 (dB)
40
30
20
-40 °C
25 °C
10
85 °C
0
2300
2400
2441.5
2483
Frequency (MHz)
DS111216
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support, contact RFMD at (+1) 336-678-5570 or [email protected].
9 of 9