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High Dynamic Range Low Noise Amplifier, 800 - 1000 MHz
Features
* Low Noise Figure: 1.2 dB * High Input: +18 dBm at 8 V, 60 mA bias +6.5 dBm at 3 V, 20 mA bias * High Gain: 15 dB * Single Supply: +3 to +8 VDC * Low Cost SOIC-8 Plastic Package * Adjustable current: 20 to 80 mA with external resistor
AM50-0003 V3
Functional Block Diagram
GND
GND
Description
M/A-COM's AM50-0003 is a high dynamic range, GaAs MMIC, low noise amplifier in a low cost, SOIC 8-Lead, surface mount, plastic package. It employs external input matching to obtain optimum noise figure performance and operating frequency flexibility. The AM50-0003 also features flexible biasing to control the current consumption vs. dynamic range trade-off. The AM50-0003 can operate from any supply voltage in the 3V to 8V range. Its current can be controlled over a range of 20 mA to 80 mA with an external resistor. The AM50-0003 is ideally suited for use where low noise figure, high gain, high dynamic range, and low power consumption are required. Typical applications include receiver front ends in AMPS, GSM, and ETACS base stations. It is also useful as a gain block, buffer, driver, and IF amplifier in both fixed and portable cellular and 900 MHz ISM systems.
Ordering Information
Part Number
AM50-0003 AM50-0003TR
m o .c U t4 e e h S ta a .D w w w
RF IN GND
REXT
VDD
RF OUT
GND
Pin Configuration
Pin No.
1 2 3 4 5 6 7 8
Pin Name
GND REXT
Description
RF and DC Ground
External Current Control (optional) RF Input of the amplifier RF and DC Ground RF and DC Ground
RF IN GND GND
RF OUT VDD
RF Output of the amplifier Positive supply voltage RF and DC Ground
GND
Absolute Maximum Ratings 1
Parameter
VDD Input Power Current
2
Absolute Maximum
+10 VDC +10 dBm 120 mA +150C
Package
Bulk Packaging 1000 piece reel
Channel Temperature
3
AM50-0003RTR AM50-0003SMB
Reverse Tape and Reel Sample Test Board
Operating Temperature Storage Temperature
-40C to +85C -65C to +150C
Note: Reference Application Note M513 for reel size information.
1
M/A-COM Inc. and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. M/A-COM makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does M/A-COM assume any liability whatsoever arising out of the use or application of any product(s) or information.
om .c U 4 et e * North America Tel: 800.366.2266 / Fax: 978.366.2266 h S * Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300 a t * Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298 a .D information. Visit www.macom.com for additional data sheets and product w w w
1. Exceeding any one or combination of these limits may cause permanent damage. 2. When pin #2 is used to increase current. (see note 6) 3. Thermal resistance (jc) = +88C/W
High Dynamic Range Low Noise Amplifier, 800 - 1000 MHz
AM50-0003 V3
Electrical Specifications: TA = +25C, Z0 = 50 Ohms, F=900 MHz, Pin = -30 dBm
Parameter
Gain
Test Conditions
800 - 1000 MHz, 5 V, 60 mA
4
Units
dB dB dB dB Ratio Ratio dBm dBm dBm dBm dB
Min
13 12 -- -- -- -- -- -- 12.5 4.0 --
Typ
15 13.5 1.20 1.25 2.0:1 1.5:1 16.5 8.5 15 6.5 25
Max
-- -- 1.50 1.50 -- -- -- -- -- -- --
800 - 1000 MHz, 3 V, 20 mA Noise Figure 800 - 1000 MHz, 5 V, 60 mA
4
800 - 1000 MHz, 3 V, 20 mA Input VSWR Output VSWR Output 1 dB Compression 800 - 1000 MHz, 800 - 1000 MHz, 800 - 1000 MHz, 5 V, 60 mA4 800 - 1000 MHz, 3 V, 20 mA Input IP3 800 - 1000 MHz, 5 V, 60 mA
4
800 - 1000 MHz, 3 V, 20 mA Reverse Location 800 - 1000 MHz,
4. Using external 15 Ohm resistor. See functional bolck diagram herein.
Functional Schematic
VDD
Component List 5
Part
C1 C2
C2
Value
47 pF 470 pF 12 nH 12 nH 5.1K Ohms See Note 6
Case Size
0603 0603 0603 0603 0603 0603
Manufacturer
Murata Murata Coilcraft Coilcraft Panasonic Panasonic
Purpose
DC Block By-Pass Tuning RF Choke DC Return Optional current control
L2
L1
7 L1
IN
C1 R1
3
6 1,4,5,8
L2
OUT
R1 R2
2 R2 (See Note 6)
Handling Procedures
Please observe the following precautions to avoid damage:
5. All External circuitry parts are readily available, low cost surface mount components (.060 in. x .030 in. or .080 in. x .050 in.) 6. Pin 2 allows use of an external resistor to ground for optional, higher current. For 20 mA operation, no resistor is used. For IDD ~ 40 mA, R2 = 43 ohms; IDD ~ 60 mA, R2 = 15 ohms; IDD ~ 80 mA, R2 = 10 ohms.
Static Sensitivity
Gallium Arsenide Integrated Circuits are sensitive to electrostatic discharge (ESD) and can be damaged by static electricity. Proper ESD control techniques should be used when handling these devices.
2
M/A-COM Inc. and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. M/A-COM makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does M/A-COM assume any liability whatsoever arising out of the use or application of any product(s) or information.
* North America Tel: 800.366.2266 / Fax: 978.366.2266 * Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300 * Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298 Visit www.macom.com for additional data sheets and product information.
High Dynamic Range Low Noise Amplifier, 800 - 1000 MHz
Recommended PCB Configuration
Layout View
AM50-0003 V3
Cross Section View
RF Traces & Components RF Ground DC Routing Customer Defined
The PCB dielectric between RF traces and RF ground layers should be chosen to reduce RF discontinuities between 50 lines and package pins. M/A-COM recommends an FR-4 dielectric thickness of 0.008" (0.20 mm) yielding a 50 line width of 0.015" (0.38 mm). The recommended RFmetalization thickness is 1 ounce copper.
Designer's Kit AM50-0003SMB
The AM50-0003SMB Designer's Kit allows for immediate evaluation of M/A-COM's AM50-0003. The Designer's Kit includes an evaluation board with mounted AM50-0003 and five loose AM50-0003's. The evaluation board consists of the recommended external surface mount circuitry, RF connectors, and a DC multi-pin connector, all mounted to a multi-layer FR-4 PCB. The AM50-0003SMB evaluation PCB is illustrated below with all functional ports labeled.
AM50-0003 Evaluation Board
Evaluation PCB & RF Connector Losses
Port Reference
LNA Input LNA Output
Approximate RF Loss
0.1 dB @ 900 MHz 0.1 dB @ 900 MHz
The DC connector on the Designer's Kit PCB allows convenient DC line access. This is accomplished by the one or more of the following methods. 7. A mating female multi-pin connector (newark Electronics Stock # 46F-4658, not included). 8. Wires soldered to the necessary pins (not included). 9. Clip leads (not included).
3
M/A-COM Inc. and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. M/A-COM makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does M/A-COM assume any liability whatsoever arising out of the use or application of any product(s) or information.
* North America Tel: 800.366.2266 / Fax: 978.366.2266 * Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300 * Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298 Visit www.macom.com for additional data sheets and product information.
High Dynamic Range Low Noise Amplifier, 800 - 1000 MHz
Typical Performance Curves
Gain vs. Frequency
17 3 Volts 5 Volts 8 Volts
AM50-0003 V3
VSWR vs. Frequency
5 INPUT OUTPUT 4
16
15
3
14
2
13
12 0.5 0.7 0.9 1.1
1 0.5 0.7 0.9 1.1
Frequency (GHz)
Frequency (GHz)
Noise Figure vs. Frequency
1.4
Noise Figure vs. Current, F = 900 MHz
1.4 Vdd = 3 to 8 Volts
Vdd = 3 to 8 Volts 1.3
1.3
1.2
1.2
1.1
1.1
1 0.8 0.85 0.9 0.95 1
1 20 40 60 80
Frequency (GHz)
IDD (mA)
Output P1 dB vs. Frequency
24
Output P1 dB vs. Current, F = 900 MHz
24
20
20
3 VOLT 5 VOLT 6 VOLT 8 VOLT
16 3 VOLT 5 VOLT 6 VOLT 8 VOLT 12
16
12
8 0.8 0.85 0.9 0.95 1
8 20 40 60 80
Frequency (GHz)
IDD (mA)
4
M/A-COM Inc. and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. M/A-COM makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does M/A-COM assume any liability whatsoever arising out of the use or application of any product(s) or information.
* North America Tel: 800.366.2266 / Fax: 978.366.2266 * Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300 * Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298 Visit www.macom.com for additional data sheets and product information.
High Dynamic Range Low Noise Amplifier, 800 - 1000 MHz
Typical Performance Curves
Input IP3 vs. Frequency
21
AM50-0003 V3
Input IP3 vs. Current, F = 900 MHz
21 3 VOLT 5 VOLT 6 VOLT 8 VOLT
17
17
13 3 VOLTS 5 VOLTS 6 VOLTS 8 VOLTS 9
13
9
5 0.8 0.85 0.9 0.95 1
5 20 40 60 80
Frequency (GHz)
IDD (mA)
SOIC-8
The AM50-0003 is fabricated using a low-cost 0.5-micron gate length GaAs process. The process features full passivation for increased performance reliability. The AM50-0003 is 100% RF tested to ensure performance specification compliance.
5
M/A-COM Inc. and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. M/A-COM makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does M/A-COM assume any liability whatsoever arising out of the use or application of any product(s) or information.
* North America Tel: 800.366.2266 / Fax: 978.366.2266 * Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300 * Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298 Visit www.macom.com for additional data sheets and product information.

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