RF2411
LOW NOISE AMPLIFIER/MIXER
RoHS Compliant & Pb-Free Product Package Style: SOIC-14
Features
Single 3V to 6.5V Power Supply 500MHz to 1900MHz Operation 25dB Small Signal Gain 2.5dB Cascaded Noise Figure 8.5mA DC Current Consumption -8dBm Input IP3
LNA LNA IN 1 GND 2 GND 3 GND 4 GND 5 IF OUT+ 6 IF OUT- 7 RF AMP 14 LNA OUT 13 NC 12 VCC1 11 VCC2 10 RF IN9 RF IN+ 8 LO IN
MIXER
Applications
UHF Digital and Analog Receivers Digital Communication Systems Spread-Spectrum Communication Systems Commercial and Consumer Systems Portable Battery-Powered Equipment General Purpose Frequency Conversion
Functional Block Diagram
Product Description
The RF2411 is a monolithic integrated UHF receiver front-end. The IC contains all of the required components to implement the RF functions of the receiver except for the passive filtering and LO generation. It contains an LNA (low-noise amplifier), a second RF amplifier, and a balanced mixer which can drive a single-ended or balanced load. The output of the LNA is made available as a pin to permit the insertion of a bandpass filter between the LNA and the RF/Mixer section. The LNA output is buffered to permit a wide range of choices for the interstage filter without altering the VSWR or noise figure at the LNA input and to provide high isolation from the LO to the input port. The LNA section may be disabled to conserve power.
Ordering Information
RF2411 RF2411 PCBA-L RF2411 PCBA-H Low Noise Amplifier/Mixer Fully Assembled Evaluation Board (850MHz) Fully Assembled Evaluation Board (1800MHz)
Optimum Technology Matching® Applied
GaAs HBT GaAs MESFET InGaP HBT 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 A7 DS070816
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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RF2411
Absolute Maximum Ratings Parameter
Supply Voltage Input LO and RF Levels Ambient Operating Temperature Storage Temperature
Rating
-0.5 to 7.0 +6 -40 to +85 -40 to +150
Unit
VDC dBm °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.
Parameter (850MHz)
Overall
RF Frequency Range IF Frequency Range Cascade Gain
Min.
Specification Typ.
Max.
Unit
Condition
T = 25°C, VCC =5V, RF=850MHz, LO=0dBm, IF=50MHz, Application Schematic 2 configuration
500 to 1900 DC to 150 27 21 25 20 -8 2.4 2.4 3.4 29
MHz MHz dB IF=10MHz IF=50MHz IF=150MHz dBm dB Referenced to the input Single sideband, IF=10MHz Single sideband, IF=50MHz Single sideband, IF=150MHz dB dBm dB dB
Cascade IP3 Cascade Noise Figure
First Section (LNA)
Noise Figure Input VSWR Input IP3 Gain Reverse Isolation Output VSWR 1.6 1.5:1 -3.5 14 30 2.0:1
Second Section (RF Amp, Mixer, IF1)
Noise Figure Input VSWR Input IP3 Conversion Gain Output Impedance 11.0 2.0:1 +6 11 4 -6 to +6 30 30 1.5:1 3 to 6.5 8 20 V mA mA VCC =3.0V VCC =5.0V dBm dB kΩ dBm dB dB Open Collector dB Single Sideband
LO Input
LO Level LO to RF Rejection LO to IF Rejection LO Input VSWR
Power Supply
Voltage Current Consumption
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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 A7 DS070816
RF2411
Parameter (1800MHz)
Overall
RF Frequency Range IF Frequency Range Cascade Gain 500 to 1900 DC to 100 22 21 17 -7 4.0 4.0 4.8 2.6 1.2:1 -3.5 10 25 1.5:1 MHz MHz dB
Min.
Specification Typ.
Max.
Unit
Condition
T = 25°C, VCC =5V, RF=1800MHz, LO=0dBm, IF=50MHz, Application Schematic 2 configuration
Cascade IP3 Cascade Noise Figure
dBm dB
IF=10MHz IF=50MHz IF=150MHz Referenced to the input Single sideband, IF=10MHz Single sideband, IF=50MHz Single sideband, IF=150MHz
First Section (LNA)
Noise Figure Input VSWR Input IP3 Gain Reverse Isolation Output VSWR dB dBm dB dB
Second Section (RF Amp, Mixer, IF1)
Noise Figure Input VSWR Input IP3 Conversion Gain Output Impedance 10.0 2.0:1 +3 11 4 -6 to +6 30 30 1.2:1 dB dBm dB kΩ dBm dB dB Single Sideband
Open Collector
LO Input
LO Level LO to RF Rejection LO to IF Rejection LO Input VSWR
Rev A7 DS070816
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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RF2411
Pin 1 Function LNA IN Description
This pin is NOT internally DC-blocked. An external blocking capacitor must be provided if the pin is connected to a device with a DC path. A value of 100pF is recommended for 900MHz and 22pF for 1800MHz.
LNA IN
Interface Schematic
2 3 4 5 6
GND GND GND GND IF OUT+
Ground connection. For best performance, keep traces physically short and connect immediately to ground plane. Same as pin 2. Same as pin 2. Same as pin 2. Balanced open collector output of the mixer. External bias needs to be supplied to this pin. This can be done with a resistor to VCC (see application schematic, “1800MHz, Balanced Resistor Output Matching”), with a balun (see application schematic, “1800MHz, Output Matching with Balun”) or when used in a single-ended configuration (see application schematic, “1800MHz, Single-Ended Resistive Output Matching”). When using a resistor to VCC the resistor value will set the output impedance. Typical values for this resistor are 200 Ω to 1kΩ. A shunt inductor/capacitor resonator to VCC is needed to maintain proper DC voltage at the mixer. At low resistor values the resonator may be omitted at the expense of gain, output power and IP3. To obtain maximum gain and output power a balun as shown in application schematics “1800MHz, Output Matching with Balun” and “850MHz, Output Matching with Balun” is recommended. Using both outputs and matching them correctly to a single ended load will result in a 6dB gain improvement over the plain single ended configuration. Same as pin 6 except complementary output. See pin 6. 50 Ω mixer LO input. This pin has an internal pull-up resistor to VCC and is not DC-blocked. An external blocking capacitor must be provided if the pin is connected to a device with a DC path. A value of 100pF is recommended for 900MHz and 22pF for 1800MHz.
IF OUT+ IF OUT-
7 8
IF OUTLO IN
LO IN
9
RF IN+
Balanced mixer RF Input port. This pin is NOT internally DC-blocked. An external blocking capacitor must be provided if the pin is connected to a device with a DC path. A value of 100pF is recommended for 900MHz and 22pF for 1800MHz. Matching is required; see the applications schematics. To minimize the noise figure it is recommended to have a bandpass filter before this input. This will prevent noise at the image frequency from being converted to the IF.
RF IN+
RF IN-
BIAS
10 11 12
RF INVCC2 VCC1
Same as pin 9 except complementary input. Supply voltage for the mixer bias circuits. Supply Voltage for the LNA only. A 47pF external bypass capacitor is required and an optional 0.01 μF will be required if no other low frequency bypass capacitors are nearby. The trace length between the pin and the bypass capacitors should be minimized. The ground side of the bypass capacitors should connect immediately to ground plane.
See pin 9.
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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 A7 DS070816
RF2411
Pin 13 14 Function NC LNA OUT Description
No connection. 50 Ω output. An external DC blocking capacitor is required when this pin is connected to a DC path.
LNA OUT
Interface Schematic
Package Drawing
0.157 0.150
0.018 0.014
0.008 0.004
0.337 0.334 0.050
0.244 0.229
0.068 0.053
8° MAX 0° MIN
0.034 0.016
0.009 0.007
Rev A7 DS070816
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com.
5 of 14
RF2411
Application Schematic 850MHz, Output Matching with Balun
100 pF RF IN 1 2 3 4 5 6 7 RF AMP LNA 14 13 12 11 10 9 100 pF 100 nF 8 100 pF LO IN 100 pF 2 pF 50 Ω Image Filter Vcc
300 pF
100 nF
IF OUT
T1 8:1
VCC
MIXER
8.2 nH
Application Schematic 1800MHz, Output Matching with Balun
22 pF RF IN 1 2 3 4 5 6 7 RF AMP LNA 14 13 12 11 10 22 pF 9 8 22 pF LO IN 22 pF 2.7 nH 50 Ω Image Filter Vcc
300 pF
100 nF
IF OUT
T1 8:1
VCC
MIXER
100 nF
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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 A7 DS070816
RF2411
Application Schematic 1800MHz, Balanced Resistive Output Matching
22 pF RF IN 1 2 3 VDD 4 470 Ω 5 6 7 RF AMP LNA 14 13 12 11 10 22 pF 9 8 22 pF LO IN 22 pF 2.7 nH 0.1 μF 50 Ω Image Filter
300 pF
L2 IF OUT1 IF OUT2
470 Ω
L1
MIXER
Application Schematic 1800MHz, Single-Ended Resistive Output Matching
22 pF RF IN 1 2 3 4 VDD 5 6 7 RF AMP LNA 14 13 12 11 10 22 pF 9 8 22 pF LO IN 22 pF 2.7 nH 50 Ω Image Filter
300 pF
100 nF
MIXER
L1 IF OUT
470 Ω
Rev A7 DS070816
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com.
7 of 14
RF2411
Evaluation Board Schematic Mixer Tuned for 850MHz
J1 LNA IN LNA 1 C1 1 nF 2 3 4 5 J2 IF OUT T1 8:1 MIXER 6 7 RF AMP 9 8 C5 1 nF C6 100 pF C8 100 nF
2411400 Rev B
14 13 12 11 10 C9 2 pF C3 300 pF C4 100 nF C2 1 nF
J5 LNA OUT
VCC
J4 MIXER IN
L1 8.2 nH J3 LO IN
P1 1 2 P1-3 3 NC GND VCC
C7 1 nF
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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 A7 DS070816
RF2411
Evaluation Board Schematic Mixer Tuned for 1800MHz
J1 LNA IN C1 1 nF 1 2 3 4 5 J2 IF OUT T1 8:1 6 7 RF AMP LNA 14 13 12 11 10 9 8 C6 100 pF C8 100 nF
2411401 Rev B
C2 1 nF
J5 LNA OUT
VCC C3 300 pF C4 100 nF J4 MIXER IN L1 2.7 nH
MIXER
C5 1 nF
P1 1 2 P1-3 3 NC GND VCC
C7 1 nF
J3 LO IN
Rev A7 DS070816
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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RF2411
Evaluation Board Layout 850MHz Board Size 2.0” x 2.0”
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Rev A7 DS070816
RF2411
Evaluation Board Layout 1800MHz Board Size 2.0” x 2.0”
Rev A7 DS070816
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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RF2411
LNA S21
22 20 18 16 14
Vcc=2.7V Vcc=3.0V Vcc=3.3V Vcc=3.6V
LNA S12
-8
Vcc=2.7V
-12
Vcc=3.6V Vcc=5.0V Vcc=6.0V
S21 (dB)
12 10 8 6 4 2 0 0 1 2
Vcc=5.0V Vcc=6.0V
S12 (dB)
3
Vcc=4.5V
-16
-20
-24
-28 0 1 2 3
Frequency (GHz)
Frequency (GHz)
LNA VSWR
5
Input VSWR Vcc=2.7V Output VSWR Vcc=2.7V Output VSWR Vcc=3.6V Output VSWR Vcc=5.0V Output VSWR Vcc=6.0V
4
Input VSWR Vcc=3.6V Input VSWR Vcc=5.0V
VSWR
3
Input VSWR Vcc=6.0V
2
1 0 1 2 3
Frequency (GHz)
LNA S11
Swp Max 3.01GHz
2 .0
Vcc=2.7V
LNA S22
1.0
0.6
Vcc=2.7V Vcc=3.6V
0.6
Swp Max 3.01GHz
2. 0
1.0
0.8
3GHz
Vcc=3.6V Vcc=5.0V Vcc=6.0V
3 .0
Vcc=5.0V Vcc=6.0V
0.8
10MHz
10.0 0.2 0.4 0.6 0.8 1.0 2.0 3.0 4.0 5.0 0
10.0
0.2 0.4 0.6 0.8 1.0 0
2.0
3.0
10MHz
4.0 5.0
10MHz
10.0 Swp Min 0.01GHz
-10.0
.0
-0.
-0. 6
-2
6
-0.8
-0.8
-1.0
Swp Min 0.01GHz
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-1.0
. -2
0
-3
.4 -0
.4 -0
Rev A7 DS070816
-4. 0 -5.0
-3 .0
-4. 0 -5.0
-0.2
0.2
4.0 5 .0
-0.2
0. 4
-10.0
.0
0. 4
3.
0
4.0 5.0
3GHz
0 .2
10.0
RF2411
LO Input
0.8
Swp Max 3.01GHz
RF Input (single ended)
2. 0
0.6
0.6
Swp Max 3.01GHz
2. 0
1.0
Vcc=2.7V Vcc=3.6V Vcc=5.0V Vcc=6.0V
0 3.
0.8
Vcc=2.7V
1.0
10MHZ
10.0
10.0
10MHZ 3GHZ 3GHZ
.4 -0
.4 -0
3GHZ
-0. 6
-0. 6
.0 -2
.0 -2
Swp Min 0.01GHz
Swp Min 0.01GHz
-0.8
-1.0
-0.8
IF Output
0.6
Swp Max 3.01GHz
2. 0
0.8
Vcc=2.7V
1.0
Vcc=3.6V Vcc=5.0V
0 3.
Vcc=6.0V
4.0 5.0
10.0
3GHZ
10MHZ
.4 -0
-0. 6
.0 -2
Swp Min 0.01GHz
-0.8
Rev A7 DS070816
-1.0
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com.
-4. 0 -5.0
-0.2
-10.0
10.0
0.2
0.4
0.6
0.8
1.0
2.0
3.0 4.0 5.0
0
-1.0
-4. 0 -5.0
-3 .0
-4. 0 -5.0
-0.2
3GHZ
-0.2
-10.0
10.0
0.2
0.4
0.6
0.8
1.0
2.0
3.0 4.0 5.0
0.2
0.4
0.6
0.8
1.0
2.0
3.0 4.0 5.0
0
0
0.2
4.0 5.0
0.
4
-10.0
-3 .0
-3 .0
0. 4
0. 4
Vcc=3.6V Vcc=5.0V Vcc=6.0V
0 3.
4.0 5.0
10.0
0.2
0.2
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RF2411
RoHS* Banned Material Content
RoHS Compliant: Package total weight in grams (g): Compliance Date Code: Bill of Materials Revision: Pb Free Category: Yes 0.127 0531 e3 Pa r ts Pe r Mi l l i o n (PPM ) Pb 0 0 0 0 0 0 Cd 0 0 0 0 0 0 Hg 0 0 0 0 0 0 Cr V I 0 0 0 0 0 0 PB B 0 0 0 0 0 0 PB DE 0 0 0 0 0 0
B i l l o f M a te r i a l s Di e M o l di ng Co m p o und Le a d F r a me Di e A tta ch Epo x y Wi r e So l de r Pl a ti ng
Thi s R o HS b a nne d ma te r i a l co nte nt de cl a r a ti o n wa s pr e p a r e d so l e l y o n i nfo r ma ti o n, i ncl udi ng a na l y ti ca l da ta , p r o vi de d to R F M D b y i ts sup p l i e r s, a nd a p p l i e s to the B i l l o f M a te r i a l s (B OM ) r e vi si o n no te d * DIRECTIVE 2002/95/EC OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL of 27 January 2003 on the restriction of the use of certain hazardous substances in electrical and electronic equipment
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Rev A7 DS070816