AM55-0003TR [ETC]
250 mW Power Amplifier with T/R and Diversity Switches 2.42.5 GHz ; 250毫瓦功率放大器T / R和分集开关2.42.5 GHz的\n
| 型号： | AM55-0003TR |
| 厂家： | 
ETC |
| 描述： | 250 mW Power Amplifier with T/R and Diversity Switches 2.42.5 GHz
|
| 文件： | 总8页 (文件大小：448K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Preliminary Specifications
250 mW Power Amplifier with T/R and Diversity Switches
2.4 - 2.5 GHz
AM55-0003
Features
SSOP-28
+.0037
-.0041
+0,09
-0,1
●
Highly Integrated Power Amplifier With T/R and
.3900
9,91
+.0025
Diversity Switches
.0275
0,7
-.0025
●
Operates Over 2.7 V to 6 V Supply Voltage
+0,06
-0,06
●
High Linear Output Power (P : +24 dBm)
1dB
+.0034
●
Individual Gate Control for Each Amplifier Stage
Low Cost SSOP-28 Plastic Package
.1540
.236 ±.008
5,99±0,2
-.0043
●
+0,09
-0,11
3,91
PIN 1
Description
+.0018
-.0005
+0,05
-0,01
.057 ±.003
1,45 ±0,08
.015 (0,38) X 45°
.0080
0,2
M/A-COM’s AM55-0003 is a GaAs power amplifier with
integrated transmit/receive and an antenna diversity switch
in a low cost SSOP 28 plastic package. The power
amplifier delivers +24 dBm of linear power with high
efficiency and can be operated with voltages as low as 2.7
volts. The power amplifier switch is fully monolithic. The
T/R and diversity switches achieve good insertion loss and
isolation without degrading the overall linearity. The
switches can be controlled with CMOS logic levels.
+.004
-.001
+0,1
-0,03
.010
0-8°
.007 ±.003
0,18 ±0,08
.025
0,64
0,25
+.022
-.013
.028
0,71
.004 (0,10)
+0,56
-0,33
Dimensions are inches over millimeters
The AM55-0003 is ideally suited for QPSK, BPSK or other
linearly modulated systems in the 2.4 GHz ISM frequency
band. It can also be used in GFSK systems where levels of
+25 dBm are required. Typical applications include WLAN
and wireless portable data collection. This power amplifier
can be combined with a transceiver IC (MD58-0001 or
MD58-0002) to form a complete RF front end.
Ordering Information
Part Number
Description
AM55-0003
SSOP 28-Lead Plastic Package
Forward Tape & Reel*
Reverse Tape & Reel*
Designer’s Kit
AM55-0003TR
AM55-0003RTR
AM55-0003SMB
M/A-COM's AM55-0003 is fabricated using a mature
0.5-micron gate length GaAs process. The process features
full passivation for increased performance and reliability.
If specific reel size is required, consult factory for part number
assignment.
*
Typical Electrical Specifications
Test Conditions: Frequency: 2.45 GHz, V
adjusted for 70 mA quiescent bias on V
= 5 V±5%, V adjusted for 20 mA quiescent bias on V , V
DD1 G2
DD1,2,3
G1
, V adjusted for 90 mA quiescent bias on V
, T = +25°C
DD2
G3
DD3
A
Parameter
Units
Min.
24
Typ.
Max.
Power Amplifier
Linear Gain
dB
28
1.75:1
24.5
-20
32
VSWR In/Out
Output Power @ P1dB
Second Harmonic @ P1dB
Third Harmonic @ P1dB
IDD @ P1dB (VDD1 + VDD2 + VDD3
T/R and Diversity Switches
Insertion Loss
dBm
dBc
dBc
mA
22.5
0
-30
-10
375
)
270
dB
dB
1.2
12
Isolation
10
VSWR In/Out
1.5:1
Specifications Subject to Change Without Notice
V 2.0
M/A-COM Inc.
■
1011 Pawtucket Boulevard, Lowell, MA 01853 USA
■
Telephone: 800-366-2266
1
250 mW Power Amplifier with T/R and Diversity Switches
Pin Configuration
AM55-0003
Absolute Maximum Ratings1
Pin No.
Pin Name
Description
Parameter
Absolute Maximum
1
ANT CTRL
Antenna selection: Select ANT 1
(0V) or ANT 2 (+5 V)
Max. Input Power2
Operating Voltages2,3
+23 dBm
VDD = 8 V
V
GG = -8 V
2
3
4
5
6
7
8
9
ANT COMMON Common Port of Diversity Switch
Operating Temperature
Storage Temperature
-40°C to +85°C
-65°C to +150°C
GND
ANT 1
GND
DC and RF Ground
Output #1 of Diversity Switch
DC and RF Ground
1. Exceeding these limits may cause permanent damage.
2. Ambient temperature (T ) = +25°C
A
3. |V | + |V | not to exceed 12 volts.
ANT 2
GND
Output #2 of Diversity Switch
DC and RF Ground
DD
GG
RX OUT
Output of T/R Switch for receive mode
Negative bias control for the second
V
Truth Table
G2
PA stage, adjusted to set V
DD2
Control Line
ANT
quiescent bias current, which is
typically 70 mA. Typical voltage
at pin = -0.55 V
Operating
Mode
T/R
CTRL
CTRL
X
X
0
1
1
0
Receive
Transmit
ANT 1
Input impedance: > 1 MΩ
10
11
GND
DC and RF Ground
X
X
V
Positive bias for the first stage of the
PA, 2.7 to 6 volts
ANT 2
DD1
X - Don’t Care
12
13
14
GND
GND
DC and RF Ground
“0” = 0 V to 0.2 V @ 100 µA
DC and RF Ground
“1” = V to V - 0.2 V @ 200 µA
DD
DD
V
Negative bias control for the first PA
G1
stage, adjusted to set V
quiescent
DD1
bias current, which is typically 20 mA.
Typical voltage at pin = -0.75 V
Input impedance: > 1 MΩ
Functional Diagram and Pin Configuration
1
28
15
16
17
RF IN
GND
RF Input of the Power Amplifier
DC and RF Ground
ANT CTRL
ANT COMMON
GND
V
V
ANT
TR
DD
DD
V
Negative bias control for the third PA
G3
T/R CTRL
RF OUT
GND
stage, adjusted to set V
quiescent
DD3
bias current, which is typically 90 mA.
Typical voltage at pin = -0.95 V
Input impedance: > 1 MΩ
ANT 1
GND
ANT 2
V
DD3
18
V
Positive bias for the second stage of
the PA, 2.7 to 6 volts
DD2
GND
GND
GND
GND
GND
RX OUT
19
20
21
22
23
GND
GND
GND
GND
DC and RF Ground
DC and RF Ground
DC and RF Ground
DC and RF Ground
V
G2
GND
V
V
DD2
DD1
V
GND
GND
G3
V
Positive bias for the third stage of the
PA, 2.7 to 6 volts
DD3
GND
RF IN
V
G1
24
25
GND
DC and RF Ground
14
15
RF OUT
RF output of T/R switch and power
amplifier for transmit mode
26
T/R CTRL
0 V for transmit mode, +5 V for
receive mode
27
28
V
TR
V
V
for T/R switch
DD
DD
DD
V
ANT
for Diversity Switch
DD
Specifications Subject to Change Without Notice
V 2.0
M/A-COM Inc.
■
1011 Pawtucket Boulevard, Lowell, MA 01853 USA
■
Telephone: 800-366-2266
2
250 mW Power Amplifier with T/R and Diversity Switches
AM55-0003
Power Amplifier CW Performance at
Power Amplifier Small Signal
Performance1
Various Supply Voltages1
LINEAR GAIN, V
= V
= V
POWER OUTPUT @ 2.45 GHz, V
= V
= V
DD1
DD2 DD3
DD1
DD2
DD3
35
30
25
20
15
10
30
5 V
6 V
6 V
25
20
15
10
5
5 V
4 V
3 V
4 V
3 V
-19
-14
-9
-4
1
2.0
2.2
2.4
2.6
2.8
3.0
POWER INPUT (dBm)
FREQUENCY (GHz)
POWER ADDED EFFICIENCY (%)
INPUT MATCH
@ 2.45 GHz, V
= V
= V
DD1
DD2
DD3
-5
-10
-15
-20
-25
-30
50
40
30
20
10
0
5 V
6 V
5 V
6 V
4 V
3 V
3 V
4 V
2.0
2.2
2.4
2.6
2.8
3.0
-19
-14
-9
-4
1
FREQUENCY (GHz)
INPUT POWER (dBm)
GAIN COMPRESSION @ 2.45 GHz, V
= V
= V
OUTPUT MATCH
DD1
DD2
DD3
0
-5
0
-1
-2
-3
-4
-5
-6
-7
3 V
4 V
5 V
6 V
5 V
-10
-15
-20
6 V
3 V
4 V
2.0
2.2
2.4
2.6
2.8
3.0
-19
-14
-9
-4
1
FREQUENCY (GHz)
INPUT POWER (dBm)
1. All data measured at T = +25°C and V , V and V adjusted for first stage quiescent current of 20 mA, second stage current of 70 mA
G1
G2
G3
A
and third stage current of 90 mA, respectively.
Specifications Subject to Change Without Notice
V 2.0
M/A-COM Inc.
■
1011 Pawtucket Boulevard, Lowell, MA 01853 USA
■
Telephone: 800-366-2266
3
250 mW Power Amplifier with T/R and Diversity Switches
AM55-0003
Power Amplifier Spurious Response at
Various Supply Voltages1
Power Amplifier Temperature
Performance1
THIRD ORDER INTERMODULATION RATIO@ 2.45 GHz,
(TONE SPACING 600 kHz)
LINEAR GAIN, V
= V
= V = +5 V
DD 3
DD1
DD2
50
40
30
20
10
35
30
25
20
15
10
6 V
-20°C
+25°C
5 V
+70°C
3 V
4 V
9
13
17
21
25
2.0
2.2
2.4
2.6
2.8
3.0
FUNDAMENTAL P
/TONE (dBm)
FREQUENCY (GHz)
OUT
POWER OUTPUT @ 2.45 GHz,
SECOND HARMONIC RATIO @ 2.45 GHz,
V
= V
= V
V
= V
= V = +5 V
DD 3
DD1
DD2 DD3
DD1
DD2
70
65
60
55
50
45
40
35
30
25
20
15
10
5
3 V
-20°C
+25°C
5 V
6 V
+70°C
4 V
0
15
17
19
21
23
25
-19
-14
-9
-4
1
FUNDAMENTAL P
(dBm)
OUT
INPUT POWER (GHz)
THIRD HARMONIC RATIO @ 2.45 GHz,
GAIN COMPRESSION @ 2.45 GHz,
V
= V
= V
V
= V
= V = +5 V
DD1
DD2 DD 3
DD1
DD2
DD3
60
55
50
45
40
35
0
-1
-2
-3
-4
-5
+70°C
6 V
-20°C
5 V
+25°C
4 V
3 V
15
17
19
21
23
25
-20
-15
-10
-5
0
5
FUNDAMENTAL P
(dBm)
OUT
INPUT POWER (dBm)
1. All data measured at TA = +25°C and V , V and V adjusted for first stage quiescent current of 20 mA, second stage current of 70 mA and
G1
G2
G3
third stage current of 90 mA, respectively.
Specifications Subject to Change Without Notice
V 2.0
M/A-COM Inc.
■
1011 Pawtucket Boulevard, Lowell, MA 01853 USA
■
Telephone: 800-366-2266
4
250 mW Power Amplifier with T/R and Diversity Switches
AM55-0003
Transmit/Receive Switch Performance1
Diversity Switch Performance1
T/R INSERTION LOSS/ISOLATION
(RECEIVE MODE)
DIVERSITY SWITCH INSERTION
LOSS/ISOLATION
-5
0
-1
-2
-3
-4
-5
0
-5
-10
-15
-20
-25
-30
-1
-2
-3
-4
-5
-7
-9
-11
-13
-15
2.0
2.2
2.4
2.6
2.8
3.0
2.0
2.2
2.4
2.6
2.8
3.0
FREQUENCY (GHz)
FREQUENCY (GHz)
DIVERSITY SWITCH MATCH
T/R SWITCH MATCH (RECEIVE MODE)
0
-5
0
-5
-10
-15
-20
-25
INPUT
INPUT
-10
-15
-20
OUTPUT
OUTPUT
2.8
2.0
2.2
2.4
2.6
2.8
3.0
2.0
2.2
2.4
2.6
3.0
FREQUENCY (GHz)
FREQUENCY (GHz)
HARMONIC LEAKAGE AT ANT 1/ANT 2 @ 2.45 GHz2
-20
-30
-40
-50
-60
-70
-80
THIRD HARMONIC
SECOND HARMONIC
10
-7
-4
-1
2
FUNDAMENTAL INPUT POWER (dBm)
1. All data measured with V TR = V ANT = +5 V, T = +25°C.
DD
DD
A
2. Measured at 2.45 GHz at RF IN. Output measured at ANT 1 or ANT 2, with RF OUT and ANT COMMON terminated in 50 Ω.
Specifications Subject to Change Without Notice
V2.0
M/A-COM Inc.
■
1011 Pawtucket Boulevard, Lowell, MA 01853 USA
■
Telephone: 800-366-2266
5
250 mW Power Amplifier with T/R and Diversity Switches
AM55-0003
Recommended PCB Configuration
Cross-Section View
Layout View
0.0690 in.
RF Traces + Components
RF Ground
DC Routing
R1
R4
R2
R5
R3
Customer Defined
The PCB dielectric between RF traces and RF ground layers
should be chosen to reduce RF discontinuities between 50-Ω
lines and package pins. M/A-COM recommends an FR-4
dielectric thickness of 0.008 in. (0.2 mm), yielding a 50-Ω line
width of 0.015 in. (0.38 mm). The recommended metalization
thickness is 1 oz. copper.
0.975 in.
R6
C14
Shaded traces are vias to DC routing layer and traces on DC
routing layer.
C13
C23
C15
C12
C5
Biasing Procedure
The AM55-0003 requires that VGG bias be applied prior to any
VDD bias. Permanent damage may occur if this procedure is
not followed. All FETs in the PA will draw excessive current
and damage internal circuitry.
C3
C11
C16
C4
C25
External Circuitry Parts List
C24
0.625 in.
Label
C1 - C6
C23 - C24
C7 - C16
C17 - C22
R1, R6
R3, R5
R2
Value
22 pF
22 pF
1000 pF
0.01 µF
1.5 kΩ
5 kΩ
Purpose
Bypass (GHz)
DC Block
Bypass (MHz)
Bypass (kHz)
C7
C10
C9
C8
FET Gate
Divider Network
12 kΩ
1 kΩ
R4
All off-chip components are low-cost surface mount components
obtainable from multiple sources. (0.020 in. x 0.040 in. or
0.030 in. x 0.050 in.)
External Circuitry
C9
V
(T/R ANT)
DD
ANT CTRL
(
C8
C21
C20
C10
C17
1
28
27
26
25
24
23
22
21
20
19
18
T/R CTRL
ANT
COMMON
2
C7
3
ANT 1
ANT 2
4
RF OUT
VDD3
C24
5
C25
6
RX OUT
VG2
C4
C3
C16
C15
C19
C18
7
8
C11
R3
VDD2
9
R6
10
11
VDD1
C22
C5
C12
12
VG3
17
16
15
R1
C14
13
1
14
R4
VG1
2
R2
C13
R5
RF IN
C23
Specifications Subject to Change Without Notice
V 2.0
M/A-COM Inc.
■
1011 Pawtucket Boulevard, Lowell, MA 01853 USA
■
Telephone: 800-366-2266
6
250 mW Power Amplifier with T/R and Diversity Switches
Designer’s Kit (AM55-0003SMB)
AM55-0003
The AM55-0003SMB Designer's Kit allows for immediate evaluation of M/A-COM's AM55-0003 integrated power amplifier
with T/R and diversity switches. The evaluation board consists of an AM55-0003, recommended external surface mount
circuitry, RF connectors and a DC multi-pin connector, all mounted to a multi-layer FR-4 PCB. Other items included in the
Designer's Kit: a floppy disk (with typical performance data and a .DXF file of the recommended PCB layout) and any
additional Application Notes. The AM55-0003SMB evaluation PCB and block diagram are illustrated below with all
functional ports labeled.
P/A Switch Sample Board
Functional Block Diagram
PIN 19
PIN 1
P
RF IN
PIN 20
P
PIN 2
RX OUT
RF IN
RX OUT
(
(
L
N
A
N)
I
ANT1
ANT 2
ANT 2
ANT 1
ANT 1
RF OUT
R
RFOUT
ANT COMMON
ANT COMMON
ANT COMMON
(DIV SW)
DC Connector Pinout
PCB DC
Function
Connector
Device
Pin Number
PCB DC
Connector
Device
Pin Number
Function
1
2
GND
N/C
1
11
12
13
14
15
16
17
18
19
20
N/C
N/C
17
ANT CTRL (0 V/ +5 V)
VG3
3
N/C
N/C
N/C
N/C
N/C
9
N/C
VDD2 (+5 V)
N/C
N/C
18
4
5
N/C
N/C
23
6
VG2
VDD3 (+5 V)
N/C
7
VSW
VDD1 (+5 V)
N/C
N/C
11
N/C
8
8
T/R CTRL (0 V/ +5 V)
GND
9
N/C
14
N/C
27, 28
10
VG1
VDD TR, VDD ANT(+5 V)
Specifications Subject to Change Without Notice
V 2.0
M/A-COM Inc.
■
1011 Pawtucket Boulevard, Lowell, MA 01853 USA
■
Telephone: 800-366-2266
7
250 mW Power Amplifier with T/R and Diversity Switches
AM55-0003SMB Biasing Procedure
AM55-0003
In order to prevent transients which may damage the MMIC, please adhere to the following procedure.
● Turn on all power supplies and set all voltages to 0 volts BEFORE connecting the power supplies
to the DC connector.
● Apply a -5.0 volt supply to DC connector pin 10 (V ).
G1
● Apply a -5.0 volt supply to DC connector pin 6 (V ).
G2
● Apply a -5.0 volt supply to DC connector pin 12 (V ).
G3
● Apply a +5.0 volt supply to the DC connector pin 20 (V TR, V ANT).
DD
DD
● Apply a +5.0 volt supply to the DC connector pin 8 (V ).
DD1
● Apply a +5.0 volt supply to the DC connector pin 14 (V ).
DD2
● Apply a +5.0 volt supply to the DC connector pin 16 (V ).
DD3
● Apply a GND or +5.0 volt supply to the DC connector pin 18 (T/R CTRL, see truth table for
desired mode).
● Apply a GND or +5.0 volt supply to the DC connector pin 2 (ANT CTRL, see truth table for
desired mode).
● Adjust V , V , V supplies to -5 volts.
G1 G2 G3
● Adjust all V supplies to +5 volts.
DD
● Adjust V supply for desired V
quiescent current (typically 20 mA, V nominally -2.5 volts).
G1
DD1
DD2
DD3
G1
● Adjust V supply for desired V
quiescent current (typically 70 mA, V nominally -2.5 volts).
G2
G2
● Adjust V supply for desired V
quiescent current (typically 90 mA, V nominally -2.5 volts).
G3
G3
● To power off, reverse above procedure.
1) Set all V lines to 0 volts.
DD
2) Set V , V and V to 0 volts.
G1 G2
G3
3) Disconnect bias lines from DC connector.
4) Turn off power supplies.
Evaluation PCB and RF Connector Losses
Port Reference
Loss (dB)
RF IN
RF OUT
0.25
0.25
0.25
0.25
0.25
0.25
RX OUT (LNA IN)
ANT COMMON (DIV SW)
ANT 1
ANT 2
The DC connector on the Designer’s Kit PCB allows selection of all the device’s operating modes.
It 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)
4. A combination of clip leads or wires and jumpers
(jumpers included as required)
Specifications Subject to Change Without Notice
V 2.0
M/A-COM Inc.
■
1011 Pawtucket Boulevard, Lowell, MA 01853 USA
■
Telephone: 800-366-2266
8
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