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RF2373
3V LOW NOISE AMPLIFIER/ 3V DRIVER AMPLIFIER
RoHS Compliant & Pb-Free Product Package Style: SOT 5-Lead
Features
Low Noise and High Intercept Point Adjustable Bias Current Power Down Control Single 1.8V to 6.0V Power Supply 400MHz to 3GHz Operation Extremely Small SOT 5-Lead Package
RF IN 1
5 GND2
GND1 2
Applications
WLAN LNA/Driver GPS LNA CDMA PCS LNA Low Noise Transmit Power Amplifier General Purpose Amplification Driver Amplifier for TX Power Amplifier
BIAS 3
4 RF OUT
Functional Block Diagram
Product Description
The RF2373 is a low noise amplifier with a very high dynamic range designed for WLAN and digital cellular applications. The device functions as an outstanding front end low noise amplifier or driver amplifier in the transmit chain of digital subscriber units where low transmit noise power is a concern. When used as an LNA, the bias current can be set externally. When used as a PA driver, the IC can operate directly from a single cell Li-ion battery and includes a power down feature that can be used to completely turn off the device. The IC is featured in a standard SOT 5-lead plastic package.
Ordering Information
RF23733 V Low Noise Amplifier/ 3V Driver Amplifier
RF2373PCK-414
Fully Assembled Evaluation Board with 5 Sample Parts
Optimum Technology Matching(R) Applied
GaAs HBT GaAs MESFET InGaP HBT SiGe BiCMOS Si BiCMOS SiGe HBT GaAs pHEMT Si CMOS Si BJT GaN HEMT
RF MICRO DEVICES(R), RFMD(R), Optimum Technology Matching(R), Enabling Wireless ConnectivityTM, PowerStar(R), POLARISTM TOTAL RADIOTM and UltimateBlueTM 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. (c)2006, RF Micro Devices, Inc.
Rev A5 DS060907
7628 Thorndike Road, Greensboro, NC 27409-9421 * For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com.
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RF2373
Absolute Maximum Ratings Parameter
Supply Voltage Bias Voltage, VBIAS Input RF Level Current Drain, ICC Operating Ambient Temperature Storage Temperature
Rating
-0.5 to +6.0 Unit
VDC VDC dBm mA C C
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.
NOTE: Exceeding any one or a combination of the above maximum rating limits may cause permanent damage. Input RF transients to +15dBm will not harm the device. For sustained operation at inputs >+10dBm, a small dropping resistor of 10 is recommended in series with the VCC.
Parameter
Overall
Supply Voltage (VCC) Bias Voltage (VBIAS) RF Frequency Range Power Down Current Isolation Current Drain (LNA) (Driver) IP2
Min.
Specification Typ.
Max.
Unit
Condition
25C, VCC =3.3V, at typical frequencies unless otherwise specified
2.7 2.7
3.3 3.3 800 to 2500
5.0 5.0 10
V V MHz A dB mA mA dBm VBIAS =0V
23 8 12 14 18 55 820 19.5 -3 -13 880 21.5 1.1 -1 -11 2.0 4.0 1575 17.0 3 -7 19.0 1.1 5 -5 1.7 1.6 1850 16.0 4 -7 1920 18.0 1.2 6 -5 2.2 2.1 1990 20.0 1.4 21.0 1.3 2.5 4.5 960 23.5 1.3 19 23
Cellular Low Noise Amplifier
Frequency Gain Noise Figure IIP3 IP1dB Input VSWR Output VSWR MHz dB dB dBm dBm ICC =10mA
GPS Low Noise Amplifier
Frequency Gain Noise Figure IIP3 IP1dB Input VSWR Output VSWR MHz dB dB dBm dBm ICC =10mA
PCS Low Noise Amplifier
Frequency Range Gain Noise Figure IIP3 IP1dB MHz dB dB dBm dBm ICC =10mA
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7628 Thorndike Road, Greensboro, NC 27409-9421 * For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com.
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RF2373
Input VSWR Output VSWR 1.8 1.6 2.3 2.1
Rev A5 DS060907
7628 Thorndike Road, Greensboro, NC 27409-9421 * For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com.
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RF2373
Parameter
W-CDMA Low Noise Amplifier
Frequency Range Gain Noise Figure IIP3 IP1dB Input VSWR Output VSWR 6 -3 1920 15.5 2045 17.5 1.2 8 -1 1.8 1.6 2400 13.0 7.5 -5.5 2450 15.0 1.3 9.5 -3.5 1.7 1.1 820 20.0 19 9 880 22.0 1.2 21 11 2.0 4.0 1850 16.5 21.5 10.5 1920 18.5 1.3 23.5 12.5 1.8 1.6 1920 15.0 23.5 14.5 2045 17.5 1.3 25.5 16.5 1.8 1.6 2400 13.5 23 10 2450 15.5 1.4 25 12 2.3 2.1 2500 17.5 1.6 MHz dB dB dBm dBm ICC =18mA 2.3 2.1 2170 20.0 1.5 MHz dB dB dBm dBm ICC =18mA 2.5 4.5 1990 20.5 1.5 MHz dB dB dBm dBm ICC =18mA 2.2 1.6 960 24.0 1.4 MHz dB dB dBm dBm ICC =18mA 2.3 2.1 2500 17.0 1.5 MHz dB dB dBm dBm ICC =10mA 2170 19.5 1.4 MHz dB dB dBm dBm ICC =10mA
Min.
Specification Typ.
Max.
Unit
Condition
WLAN Low Noise Amplifier
Frequency Gain Noise Figure IIP3 P1dB Input VSWR Output VSWR
Cellular Driver
Frequency Gain Noise Figure OIP3 OP1dB Input VSWR Output VSWR
PCS Driver
Frequency Range Gain Noise Figure OIP3 OP1dB Input VSWR Output VSWR
W-CDMA Driver
Frequency Range Gain Noise Figure OIP3 OP1dB Input VSWR Output VSWR
WLAN Driver
Frequency Gain Noise Figure OIP3 OP1dB
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Rev A5 DS060907
RF2373
Input VSWR Output VSWR 1.7 1.1 2.2 1.6
Rev A5 DS060907
7628 Thorndike Road, Greensboro, NC 27409-9421 * For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com.
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RF2373
Pin 1 Function RF IN Description
RF input pin. This pin is DC coupled.
Interface Schematic
To Bias Circuit RF OUT RF IN
2 3
GND1 BIAS
Ground connection. For best performance, keep traces physically short and connect immediately to ground plane. This pin is used to control the bias current. An external resistor can be used to set the bias current for any VBIAS voltage. See table with evaluation board schematic.
VBIAS
4
RF OUT
5
GND2
Amplifier output pin. This pin is an open-collector output. It must be biased to VCC through a choke or matching inductor. This pin is typically matched to 50 with a shunt bias/matching inductor and series blocking/matching capacitor. Refer to application schematics. Ground connection. For best performance, keep traces physically short and connect immediately to ground plane.
Package Drawing SOT 5-Lead
1.60 + 0.01 0.400
1
0.15 0.05
2.90 + 0.10
0.950
2.80 + 0.20 3 MAX 0 MIN 0.45 + 0.10 0.127
1.44 1.04
Dimensions in mm.
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Rev A5 DS060907
RF2373
Evaluation Board Schematic
C2 22 nF LNA IN C1 0.5 pF 2 C6* R1* VPD C3
Do Not Place
1
5
3
4 L1* C7* VCC
LNA OUT
* Refer to table for the values
C4 100 pF C5 10 nF
Component L1 (nH) C6 (pF) C7 (pF)
Cellular GPS PCS W-CDMA WLAN 900 MHz 1575 MHz 1950 MHz 2140 MHz 2450 MHz 3.9 4.3 2.0 2.7 1.5 1.2 2.7 0.5 1.0 2.7 DNP 1.0 2.2 DNP 1.0
P1 P1-1 1 2 P1-3 3 HDR_3 VPD GND VCC
VPD 2.7 3.0 3.3 3.6 4.0 4.5
ICC ICC ICC R1 = 300 R1 = 430 R1 = 560 12 16 20 25 31 Over Limit 9 12 15 19 24 31 7 9 11 14 18 23
ICC R1 = 1 k 5 6 7 8 10 13
ICC R1 = 1.5 k 4 5 5 6 7 8 10
5.0 Over Limit Over Limit 29 16 Note: VCC set to 3.3 V. ICC only slightly dependent on VCC.
Rev A5 DS060907
7628 Thorndike Road, Greensboro, NC 27409-9421 * For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com.
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RF2373
This information pertains to the following charts. Test condition unless otherwise specified: VCC =3.3V, use evaluation board for corresponding frequencies.
Collector Current versus VBIAS
35.0
(R1 = 560 ohms)
30.0
25.0
IC (mA)
20.0
15.0
10.0
5.0
-40C +25C +85C
0.0 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
VBIAS (V)
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Rev A5 DS060907
RF2373
Noise Figure versus Collector Current
1.8 1.6 1.4 24.0 1.2 1.0 0.8 0.6 22.5 0.4 -40C 0.2 0.0 0.0 5.0 10.0 15.0 20.0 25.0 30.0 +25C +85C 21.5 0.0 5.0 10.0 15.0 20.0 25.0 30.0 22.0 -40C +25C +85C
Gain versus Collector Current
25.0
LNA 880 MHz
LNA 880 MHz
24.5
Noise Figure (dB)
Gain (dB) IC (mA)
23.5
23.0
IC (mA)
Noise Figure versus Collector Current
1.8 1.6 1.4 1.2 19.0 1.0 0.8 0.6 0.4 -40C 0.2 0.0 0.0 5.0 10.0 15.0 20.0 25.0 30.0 +25C +85C 16.5 0.0 5.0 17.0 17.5
Gain versus Collector Current
20.5
1575 MHz
1575 MHz
20.0
19.5
Noise Figure (dB)
Gain (dB)
18.5
18.0
-40C +25C +85C 10.0 15.0 20.0 25.0 30.0
IC (mA)
IC (mA)
Noise Figure versus Collector Current
1.8 1.6 1.4 18.0 1.2 1.0 0.8 0.6 16.5 0.4 -40C 0.2 0.0 0.0 5.0 10.0 15.0 20.0 25.0 30.0 +25C +85C 15.5 0.0 5.0 16.0
Gain versus Collector Current
19.0
1920 MHz
1920 MHz
18.5
Noise Figure (dB)
Gain (dB)
17.5
17.0
-40C +25C +85C 10.0 15.0 20.0 25.0 30.0
IC (mA)
IC (mA)
Rev A5 DS060907
7628 Thorndike Road, Greensboro, NC 27409-9421 * For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com.
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RF2373
Noise Figure versus Collector Current
1.8 1.6 1.4 18.5 1.2 1.0 0.8 0.6 17.0 0.4 -40C 0.2 0.0 0.0 5.0 10.0 15.0 20.0 25.0 30.0 +25C +85C 16.0 0.0 5.0 10.0 15.0 20.0 25.0 30.0 16.5 -40C +25C +85C
Gain versus Collector Current
19.5
2025 MHz
2025 MHz
19.0
Noise Figure (dB)
Gain (dB) IC (mA)
18.0
17.5
IC (mA)
Noise Figure versus Collector Current
2.0 1.8 1.6 1.4
Gain versus Collector Current
17.5 17.0 16.5 16.0
2450 MHz
2450 MHz
Noise Figure (dB)
Gain (dB)
-40C +25C +85C
1.2 1.0 0.8 0.6 0.4 0.2 0.0 0.0 5.0 10.0 15.0 20.0 25.0 30.0
15.5 15.0 14.5 14.0 -40C 13.5 13.0 0.0 5.0 10.0 15.0 20.0 25.0 30.0 +25C +85C
IC (mA)
IC (mA)
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7628 Thorndike Road, Greensboro, NC 27409-9421 * For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com.
Rev A5 DS060907
RF2373
Rev A5 DS060907
7628 Thorndike Road, Greensboro, NC 27409-9421 * For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com.
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RF2373
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7628 Thorndike Road, Greensboro, NC 27409-9421 * For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com.
Rev A5 DS060907

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