RF6545 - Qorvo
RF6545
3.0V TO 3.6V, 2.4GHz FRONT END MODULE
Features



GND
NC
VBAT
VBAT
NC
Package Style: QFN, 20-Pin, 3.5mmx3.5mmx0.5mm
15
14
13
12
11
GND 16
Tx Output Power=22dBm
Integrated RF Front End
Module with TX/RX switch,
PA, filter, and DP2T switch.
50 single-ended
bidirectional Transceiver
interface.
10 VB
GND 17
9
GND
RF_COM 18
8
ANT1
7
GND
6
ANT2
GND 19
ANT
TX_EN 20



3
4
5
GND
2
ANTEN2
1
ANTEN1
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
GND

RX_EN
Applications
Functional Block Diagram
Product Description
The RF6545 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. It 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
0.5mm, 20 pin QFN package.
Ordering Information
RF6545SQ
RF6545SR
RF6545TR7
RF6545TR13
RF6545PCK-410
Standard 25 piece bag
Standard 100 piece reel
Standard 750 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.
DS111110
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or [email protected]
1 of 9
RF6545
Absolute Maximum Ratings
Parameter
DC Supply Voltage
DC Supply Current
Rating
Unit
5.0
V
300
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
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.
MSL 2
Maximum Input Power to PA
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.
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.
+10
Min.
dBm
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; VLOW  0.1V
TX Path
Frequency
2400
2483
MHz
Input Return Loss
12
dB
Output Return Loss
10
dB
Transmit Path Gain
25
Gain Flatness
-0.8
Rated Output Power
28
dB
+0.8
22
dBm
20
Supply Current
Thermal Resistance
200
mA
PO =22dBm 802.15.4 OQPSK
170
mA
PO =20dBm 802.15.4 OQPSK
66
3rd harmonic level
4:1
VSWR No Damage
8:1
Gain Settling Time
2 of 9
Nominal conditions
dBm
2nd harmonic level
VSWR Stability and Load
dB
1
°C/W
VCC = 3.6V, POUT = 22dBm, TREF = 85°C
-42
dBm/MHz
PO =20dBm
-42
dBm/MHz
PO =20dBm; VCC  3.3V
2
uS
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or [email protected]
DS111110
RF6545
Parameter
Min.
Specification
Typ.
Unit
Max.
Condition
RX Path
Frequency
2400
Insertion Loss/Noise Figure
2483
1.5
Gain Flatness
-0.5
Input Return Loss
12
Output Return Loss
12
MHz
2.0
dB
+0.5
dB
15
dB
dB
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
Input Source Current at Logic
“HIGH”
Switch Leakage Current at Logic
“LOW”
V
2
uA
0.1
uA
Control Logic
DS111110
Switch Control Logic
TX_EN
RX_EN
ANT1_EN
Tx, Antenna 1
High
Low
High
ANT2_EN
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
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or [email protected]
3 of 9
RF6545
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
Function
GND
RX_EN
V ANT1
V ANT2
GND
ANT2
GND
ANT1
GND
VCC
N/C
VCC
VCC
GND
GND
GND
GND
RF_COM
19
20
GND
TX_EN
4 of 9
Description
Ground.
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.
Ground.
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]
DS111110
RF6545
Package Drawing
DS111110
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or [email protected]
5 of 9
RF6545
Evaluation Board Schematic
VCC
C3
0.1uF
L2
3nH
C2
1.0uF
GND
GND
N/C
GND
VCC2
GND
GND
RF_COM
DF
21
ANT1
GND
GND
ANT2
GND
VANT2
VANT1
GND
RX_EN
TX_EN
GND
1
10
J3
ANT1
9
2
20
11
2
GND
12
19
VCC1
18
VCC3
1
13
J1
RF_COM
GND
GND
17
14
15
16
L1
1.8nH
8
GND
7
6
5
4
2
3
1
U1
RF6545
1
J2
ANT2
2
GND
RX_EN
VANT2
6
5
4
3
2
1
VCC
GND
VANT2
VANT1
RX_EN
TX_EN
P1
6 of 9
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or [email protected]
DS111110
RF6545
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
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.
DS111110
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or [email protected]
7 of 9
RF6545
RF6545 2.4 GHz Front End Module
Input Power versus Output Power
Input Power versus Output Power
(Over Temperature @ 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
2400 MHz
-10
2441.5 MHz
-15
2483 MHz
-20
Input Power (dBm)
Input Power (dBm)
0
-5
-5
-10
-40 C
-15
25 C
85 C
-20
-25
-25
-30
-30
-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
Gain vs Output Power
Vcc = 3.3V; TX_EN =3.0V
Gain vs Output Power
(Over Temperature @ 2441.5 MHz)
Vcc = 3.3V; TX_EN = 3.0V
34
50
32
45
30
40
35
26
2400 MHz
24
2441.5 MHz
22
2483 MHz
20
Gain (dB)
Gain (dB)
28
30
-40 C
25
25 C
20
85 C
15
18
16
10
14
5
12
0
0
2
4
6
8
10
12
14
Output Power (dBm)
8 of 9
16
18
20
22
0
2
4
6
8
10
12
14
16
18
20
22
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]
DS111110
RF6545
RF6545 2.4 GHz Front End Module
Operating Current versus Output Power
Operating Current vs Output Power
(Over Temperature @ 2441.5 MHz)
Vcc = 3.3V; TX_EN = 3.0V
Operating Current vs Output Power
Vcc = 3.3V; TX_EN = 3.0V
0.25
0.2
0.15
2400 MHz
2441.5 MHz
2483 MHz
0.1
0.05
Operating Current (mA)
Operating Current (mA)
0.25
0.2
0.15
-40 C
25 C
0.1
85 C
0.05
0
0
0
2
4
6
8
10
12
14
16
18
20
0
22
2
4
6
Output Power (dBm)
8
10
12
14
16
18
20
22
Output Power (dBm)
TX S21 versus Frequency
TX S21 vs Frequency
(Over Temperature )
Vcc = 3.3V; TX_EN =3.0V
60
50
S21 (dB)
40
-40 C
30
25 C
85 C
20
10
0
2300
2441.5
2483
2500
Frequency (MHz)
DS111110
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or [email protected]
9 of 9
Was this manual useful for you? yes no
Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Download PDF

advertisement