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PDF RF5745 Data sheet ( Hoja de datos )
| Número de pieza | RF5745 | |
| Descripción | SINGLE-BAND FRONT END MODULE | |
| Fabricantes | RF Micro Devices | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de RF5745 (archivo pdf) en la parte inferior de esta página. Total 11 Páginas | ||
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RF5745
2.4GHz TO 2.5GHz, 802.11b/g/n
SINGLE-BAND FRONT END MODULE
Package Style: QFN, 16-pin, 3.0 x 3.0 x 0.5 mm
16 15 14 13
Features
Single Module Radio Front-
End
Single Supply Voltage 3.0V to
4.5 V
Integrated 2.4GHz to 2.5GHz
PA, LNA, TX/RX Switch,
PDETECT
24dBm Output Power for
Zigbee® Applications
20dBm Output Power for 11b
Meeting Spectral Mask
17dBm Output Power for 11g,
54Mbps OFDM at <3% EVM
Applications
ZigBee® Based Systems for
Remote Monitoring and
Control
Smart Meters for Energy
Management
802.11b/g WiFi
Applications
2.5GHz ISM Band
Applications
Portable Battery-Powered
Equipment
Opt. BluetoothTM Sharing of
Single Antenna Port
LNA VCC 1
12 C BT
RX OUT 2
TX IN 3
SP3T
2F0 Filter
11 ANT
10 GND
VREG 4
9 VCC
5678
Functional Block Diagram
Product Description
The RF5745 is a single-chip integrated front-end module (FEM) for high-
performance ZigBee® and other WiFi applications in the 2.4GHz to
2.5GHz ISM band. The FEM addresses the need for aggressive size reduc-
tion for a typical IEEE802.15.4 and IEEE802.11b/g systems.
The RF5745 greatly reduces the number of external components by inte-
grating all matching networks. The FEM has an integrated power amplifier,
LNA, power detector, and some TX filtering. It is also capable of switching
between WiFi RX, WiFi TX and BluetoothTM RX/TX operations. The device is
provided in a 3mmx3mmx0.45mm, 16-pin QFN package. This module
meets or exceeds the front-end system requirements for and WiFi applica-
tions.
Ordering Information
RF5745
RF5745SR
RF5745TR7
RF5745PCK-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 piece loose samples
DS120214
Optimum Technology Matching® Applied
GaAs HBT
SiGe BiCMOS
GaAs pHEMT
GaN HEMT
GaAs MESFET
InGaP HBT
Si BiCMOS
SiGe HBT
Si CMOS
Si BJT
RF MICRO DEVICES®, RFMD®, Optimum Technology Matching®, Enabling Wireless Connectivity™, PowerStar®, POLARIS™ TOTAL RADIO™ and UltimateBlue™ are trademarks of RFMD, LLC. BLUETOOTH is a trade-
mark 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.
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or [email protected].
1 of 11
1 page  
RF5745
Pin Function Description
1 LNA VCC Voltage supply for the LNA.
2
RX OUT
Receive port for 802.11b/g band. Internally matched to 50. DC block provided.
3 TX RF input for the 802.11b/g PA. Input is matched to 50 and DC block is provided.
4
VREG
Regulated voltage for the PA bias control circuit. An external bypass capacitor may be needed on the VREG line
for decoupling purposes.
5 PDETECT 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.
6
VCC
Supply voltage for the bias circuit of the PA. Add an external 56pF bypass capacitor for low frequency decou-
pling.
7
VCC
Supply voltage for the first stage of the PA. Add an external 1nF capacitor for low frequency decoupling.
8
N/C
No connect.
9
VCC
Supply voltage for the second stage of the PA. Add an external 10nF capacitor for low frequency decoupling.
10
GND
Ground.
11
ANT
Port matched to 50 and is a DC short to ground.
12
C_BT
Switch control port. See truth table for proper level.
13 BT RF bidirectional port for BluetoothTM. Input is matched to 50 and DC block is provided.
14
C_TX
Switch control port. See switch truth table for proper level.
15
C_RX
Switch control port. See switch truth table for proper level.
16
LNA_EN
LNA enable pin. This is an active high control. An external bypass capacitor may be needed on the LNA_EN line.
Package Drawing
DS120214
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or [email protected].
5 of 11
5 Page 
RF5745 Plots for IEEE802.11b
Gain versus POUT
40 VCC=4.0V, VREG=2.85V, 11b 1Mbps
35
30
25
20
0
-20
-30
-40
GAIN 2400MHz
GAIN 2450MHz
GAIN 2500MHz
5 10 15 20
Output Power (dBm)
25
ACP versus POUT
VCC=4.0V, VREG=2.85V, 11b 1Mbps
ACP1 2400MHz
ACP1 2450MHz
A2C4P010M25H0z0AMCPH2z
2450MHz ACP2
2500MHz ACP2
-50
-60
-70
0
5 10 15 20
Output Power (dBm)
25
RF5745
300
280
260
240
220
200
180
160
140
120
100
0
5
Operating Current versus POUT
VCC=4.0V, VREG=2.85V, 11b 1Mbps
ICC 2400MHz
ICC 2450MHz
ICC 2500MHz
5 10 15 20
Output Power (dBm)
IREG versus POUT
VCC=4.0V, VREG=2.85V, 11b 1Mbps
25
4
3
2
1 Ireg 2400MHz
Ireg 2450MHz
Ireg 2500MHz
0
0 5 10 15 20 25
Output Power (dBm)
DS120214
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or [email protected].
11 of 11
11 Page | ||
| Páginas | Total 11 Páginas | |
| PDF Descargar | [ Datasheet RF5745.PDF ] | |
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