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Switched Low Noise Amplifier, 800-1000 MHz
AM55-0016
AM55-0016
Switched Low Noise Amplifier 800 - 1000 MHz
Features
*
MSOP-8
R 010 ID PIN
* * * *
High Gain State: - Gain: 16dB, Noise Figure: 1.6dB - Input IP3: +3dBm (@2.7V, 25mA) Low Gain State: - Insertion Loss: 5dB, Input IP3: +24dBm Single Supply: +2.7 to +5 VDC Low Cost MSOP-8 Plastic Package Adjustable current: 10 to 30 mA with external resistor
Functional Block Diagram
0.193
0 118 .020
RF IN
RF OUT
-B-
Description
M/A-COM's AM55-0016 is a high dynamic range, switchable low noise amplifier in a low cost, MSOP 8-lead, surface mount, plastic package. The design utilizes a patented switching technique to provide a low insertion loss, high input IP3 bypass state in parallel with the high gain, low noise state. The LNA employs external input matching to obtain optimum noise figure performance and operating frequency flexibility. The AM55-0016 also features flexible biasing to control the current consumption vs. dynamic range trade-off. Its current can be controlled over a range of 10 mA to 30 mA with an external resistor. Typical applications include receiver front ends in cellular band CDMA handsets. It is also useful as a switched gain block, buffer or driver in portable cellular systems. The AM55-0016 is fabricated using a low-cost 0.5-micron gate length GaAs MESFET process. The process features full passivation for increased performance and reliability.
020
0.0256
0 118 4X 12 4X 12
0 034
0 040
3
0.007 0 013 0 008
0 0215
Ordering Information
Part Number AM55-0016 AM55-0016TR AM55-0016RTR AM55-0016SMB Package MSOP 8-Lead Plastic Package Forward Tape and Reel* Reverse Tape and Reel* Designer's Kit
* If specific reel size is required, consult factory for part number.
Electrical Specifications TA = +25C, Z0=50, F=881 MHz, PIN= -30 dBm, VDD=2.7 V, IDD=10 mA
Parameter Test Conditions HIGH GAIN STATE, Voltage control = 2.7 volts Gain Noise Figure Input IP3 IDD = 10 mA, VDD = 2.7V IDD = 25 mA, VDD = 2.7V Input VSWR / Output VSWR Reverse Isolation LOW GAIN STATE, Voltage control = 0 volts IDD = 100 A Insertion Loss Input IP3 Input VSWR Output VSWR
1. Refer to Typical Performance Data for performance versus frequency and bias.
V2.00 M/A-COM Division of AMP Incorporated s North America: Tel. (800) 366-2266, Fax (800) 618-8883 s Asia/Pacific: Tel.+85 2 2111 8088, Fax +85 2 2111 8087 s Europe: Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020
1
Units dB dB dBm dBm -- dB dB dBm -- --
Min. -- -- -- -- -- -- -- -- -- --
Typ. 16 1.6 -2 +3 2.0:1 32 5 +24 2.3:1 2.0:1
Max. -- 1.8 -- -- -- -- -- -- --
www.macom.com
AMP and Connecting at a Higher Level are trademarks. Specifications subject to change without notice.
Switched Low Noise Amplifier, 800-1000 MHz
AM55-0016
Absolute Maximum Ratings
Parameter VDD Input Power Current 2 Channel Temperature Operating Temperature Storage Temperature
1
External Circuitry
VDD C4 C5 C3 C6
Absolute Maximum +6 VDC 0 dBm 30 mA +150C -40C to +85C -65C to +150C
1
8 7 6 5
RFIN C1
L1
2 3 4
1. Exceeding any one or combination of these limits may cause permanent damage. 2. Typical thermal resistance (jc) = +99C/W.
RFOUT C2
External Circuitry Parts List
Part C1, C2 C3, C4 C5, C6, C7 L1 RBIAS U1 Value 1000 pF 47 pF 10 nF 22 nH see note 2 UMH9N
1
RBIAS
Purpose Source Bypass By-Pass By-Pass Tuning Source Bias Resistor Dual Bipolar Transistor
VCTL U1 C7
Pin Configuration
Pin No. 1 2 3 4 5 6 7 8 Pin Name VDD1 IN VS1 GND VS2 OUT VDD2 VCTL Description Stage 1 Supply Voltage RF Input Stage 1 Source RF and DC Ground Stage 2 Source RF Output Stage 2 Supply Voltage Switch Control Voltage
1. All external circuitry parts are readily available, low cost surface mount components (0.040 inches x 0.020 inches or 0.060 inches x 0.030 inches). 2. RBIAS is chosen to set the desired current, For: Idd ~10 mA, R1 = 75 ohms; Idd ~20 mA, R1 = 25 ohms; Idd ~30 mA, R1 = 9 ohms.
Recommended PCB Configuration
Layout View Cross Section View
RF Traces + Components
C3
C5 C7
RF Ground DC Routing
L1 U2 C1 C2 U1
C6 C4
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" (0.2 mm) yielding a 50 line width of 0.015" (0.38 mm). The recommended metalization thickness is 1 ounce copper.
RBIAS
V2.00 M/A-COM Division of AMP Incorporated s North America: Tel. (800) 366-2266, Fax (800) 618-8883 s Asia/Pacific: Tel.+85 2 2111 8088, Fax +85 2 2111 8087 s Europe: Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020
www.macom.com
AMP and Connecting at a Higher Level are trademarks. Specifications subject to change without notice.
Switched Low Noise Amplifier, 800-1000 MHz
AM55-0016
Typical Performance Data
Test Conditions: TA = +25C, Z0 = 50, VDD = 2.7V, IDD = 10mA unless otherwise specified.
HIGH GAIN MODE: Gain versus Current
30mA
19 18 Gain (dB) 17 16 15 14 13
Noise Figure (dB)
20mA
10mA
12 800
850
900 Frequency (MHz)
950
1000
2.0 1.9 1.8 1.7 1.6 1.5 1.4 1.3 1.2 1.1 1.0 800
HIGH GAIN MODE: Noise Figure versus Current
10mA
30mA
20mA
850
900 Frequency (MHz)
950
1000
7 6 5 4 3 2 1 0 -1 -2 -3 800
HIGH GAIN MODE: Input IP3 vs. Current
25mA
10 8 IIP3 (dBm) 6 4 2 0 -2
HIGH GAIN MODE: IIP3 vs. Current and Voltage
4.0V 3.6V 3.2V 2.7V
IIP3 (dBm)
20mA 10mA
15mA
850
900 Frequency (MHz)
950
1000
10
12
14
16
18 20 22 Current (mA)
24
26
28
30
18 17 16 15 14 13 12 11 10
HIGH GAIN MODE: Gain and Output Power vs. Input Power
6 4 2 0 -2 -4 -6 -8 -10 -10
-26
-24
-22
-20 -18 -16 -14 Input Power (dBm)
-12
-2.0 -2.5 -3.0 -3.5 -4.0 -4.5 -5.0 -5.5 -6.0 -6.5 -7.0 800
LOW GAIN MODE: Insertion Loss and Input IP3
850
900 Frequency (MHz)
950
30 29 28 27 26 25 24 23 22 21 20 1000
Output Power (dBm)
Insertion Loss (dB)
Gain (dB)
0 -2 -4 -6 -8 -10 -12 -14 -16 -18 -20 800
INPUT RETURN LOSS
Low Gain High Gain
850
900 Frequency (MHz)
950
1000
0 -2 -4 -6 -8 -10 -12 -14 -16 -18 -20 800
OUTPUT RETURN LOSS
Return Loss (dB)
Return Loss (dB)
High Gain Low Gain
850
900 Frequency (MHz)
950
1000
V2.00 M/A-COM Division of AMP Incorporated s North America: Tel. (800) 366-2266, Fax (800) 618-8883 s Asia/Pacific: Tel.+85 2 2111 8088, Fax +85 2 2111 8087 s Europe: Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020
www.macom.com
AMP and Connecting at a Higher Level are trademarks. Specifications subject to change without notice.
IIP3 (dBm)
Switched Low Noise Amplifier, 800-1000 MHz
AM55-0016
Typical Performance Data (continued)
19 18 17 Gain (dB) 16 15 14 13 12 800 850 900 Frequency (MHz) 950 1000
+80C +25C
HIGH GAIN MODE: Gain vs. Temperature
-30C
2.4 2.2 Noise Figure (dB) 2.0 1.8 1.6 1.4 1.2
HIGH GAIN MODE: Noise Figure vs. Temperature
+80C
+25C
1.0 800
-30C
850
900 Frequency (MHz)
950
1000
-4.0 -4.2 -4.4 -4.6 -4.8 -5.0 -5.2 -5.4 -5.6 -5.8 -6.0 800
LOW GAIN MODE: Insertion Loss vs. Temperature
-30C
Insertion Loss (dB)
+25C +80C
850
900 Frequency (MHz)
950
1000
Designer's Kit AM55-0016SMB
The AM55-0016SMB Designer's Kit allows for immediate evaluation of M/A-COM's AM55-0016. The Designer's Kit includes an AM55-0016, an evaluation board and a floppy disk containing typical performance data and a DXF file of the recommended PCB layout. 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 AM55-0016SMB evaluation PCB is illustrated below with all functional ports labeled.
Evaluation PCB + RF Connector Losses
Port Reference RF IN RF OUT Approximate RF Loss 0.15 dB @ 900 MHz 0.15 dB @ 900 MHz
AM55-0016 Evaluation Board
2 4 6 8 10 GND
The DC connector on the Designer's Kit PCB allows convenient DC line access. This is accomplished by one or more of the following methods: 1. A mating female multi-pin connector (Newark Electronics Stock # 46F-4658, not included). 2. Wires soldered to the necessary pins (not included). 3. Clip leads (not included).
1
3
5
7
9
RF IN
AV10367 REV -
RF OUT
V2.00 M/A-COM Division of AMP Incorporated s North America: Tel. (800) 366-2266, Fax (800) 618-8883 s Asia/Pacific: Tel.+85 2 2111 8088, Fax +85 2 2111 8087 s Europe: Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020
www.macom.com
AMP and Connecting at a Higher Level are trademarks. Specifications subject to change without notice.

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