RFMD RF2361

RF2361
4
3V LOW NOISE AMPLIFIER/
3V PA DRIVER AMPLIFIER
Typical Applications
• TDMA/CDMA/FM Cellular PCS LNA
• General Purpose Amplification
• Low Noise Transmit Driver Amplifier
• Commercial and Consumer Systems
Product Description
4
0.15
0.05
GENERAL PURPOSE
AMPLIFIERS
The RF2361 is a low noise amplifier with a very high
dynamic range designed for digital cellular applications.
The device functions as an outstanding front end low
noise amplifier or power amplifier 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.
1.60
+ 0.01
0.400
1
2.90
+ 0.10
0.950
2.80
+ 0.20
3° MAX
0° MIN
1.44
1.04
Dimensions in mm.
0.127
0.45
+ 0.10
Optimum Technology Matching® Applied
!
Si BJT
Si Bi-CMOS
GaAs HBT
GaAs MESFET
SiGe HBT
Si CMOS
Package Style: SOT 5-Lead
Features
• Low Noise and High Intercept Point
• Adjustable Bias Current
• Power Down Control
RF IN
1
GND1
2
VPD
3
5
GND2
• Single 2.5V to 6.0V Power Supply
• 150MHz to 2500MHz Operation
• Extremely Small SOT 5-Lead Package
4
RF OUT
Ordering Information
RF2361
3V Low Noise Amplifier/ 3V PA Driver Amplifier
RF2361 PCBA-D Fully Assembled Evaluation Board (Driver)
RF2361 PCBA-L Fully Assembled Evaluation Board (LNA)
Functional Block Diagram
Rev A7 001201
RF Micro Devices, Inc.
7625 Thorndike Road
Greensboro, NC 27409, USA
Tel (336) 664 1233
Fax (336) 664 0454
http://www.rfmd.com
4-183
RF2361
Absolute Maximum Ratings
Parameter
Supply Voltage, VCC
Power Down Voltage, VPD
Input RF Level
Operating Ambient Temperature
Storage Temperature
Parameter
GENERAL PURPOSE
AMPLIFIERS
4
Rating
Unit
-0.5 to +8.0
<VCC
+10
-40 to +85
-40 to +150
VDC
VDC
dBm
°C
°C
Caution! ESD sensitive device.
RF Micro Devices believes the furnished information is correct and accurate
at the time of this printing. However, RF Micro Devices reserves the right to
make changes to its products without notice. RF Micro Devices does not
assume responsibility for the use of the described product(s).
Specification
Min.
Typ.
Max.
Unit
150 to 2500
MHz
Condition
Overall
RF Frequency Range
Low Noise Amplifier
881MHz Performance
Gain
19.5
19.5
Noise Figure
Input IP3
20
20
1.4
1.4
+6.0
+5.5
1.6
1.6
dB
dB
dB
dB
dBm
dBm
1.5
1.5
dB
dB
dB
dB
dBm
dBm
Low Noise Amplifier
1950MHz Performance
Gain
12.5
12.5
Noise Figure
Input IP3
13
13
1.3
1.3
+16.5
+16.0
Driver Amplifier
836MHz Performance
Gain
Output IP3
19.5
19.5
19.5
25
Noise Figure
Reverse Isolation
Input VSWR
Output VSWR
P1dB
4-184
20.5
20.5
20.5
+32.0
+29.0
+27.8
1.9
1.85
1.8
25
25
25
1.8:1
1.25:1
21.5
21.5
21.5
35
2.0
2.0
2.0
Schematic per LNA Application;
T=25°C, RF=881MHz, VPD =2.8V,
R1=1kΩ
VCC =3.0V, ICC =7.6mA
VCC =2.7V, ICC =7.5mA
VCC =3.0V, ICC =7.6mA
VCC =2.7V, ICC =7.5mA
VCC =3.0V, ICC =7.6mA
VCC =2.7V, ICC =7.5mA
Schematic per LNA Application;
T=25°C, RF=1950MHz, VPD =2.8V,
R1=1kΩ
VCC =3.0V, ICC =6.4mA
VCC =2.7V, ICC =6.3mA
VCC =3.0V, ICC =6.4mA
VCC =2.7V, ICC =6.3mA
VCC =3.0V, ICC =6.4mA
VCC =2.7V, ICC =6.3mA
Schematic per Driver Amplifier Application;
T=25°C, RF=836MHz, VPD =2.8V
dB
dB
dB
dBm
dBm
dBm
dB
dB
dB
dB
dB
dB
VCC =3.5V
VCC =3.0V
VCC =2.7V
VCC =3.5V
VCC =3.0V
VCC =2.7V
VCC =3.5V
VCC =3.0V
VCC =2.7V
VCC =3.5V
VCC =3.0V
VCC =2.7V
Using External LC network used on evaluation board.
VCC =3.5V
VCC =3.0V
VCC =2.7V
2.0:1
2.0:1
13
12
14.4
12.5
dBm
dBm
10.5
11.5
dBm
Rev A7 001201
RF2361
Specification
Min.
Typ.
Max.
Unit
2.5 to 6.0
V
Power Supply
Voltage (VCC)
Voltage (VPD)
Current Consumption Driver Amplifier
T = 25 °C
2.7
12.5
2.8
21.5
2.9
27
V
mA
18
19
20
23
22
29
10
mA
mA
µA
Power Down
Driver Amplifier
1880MHz Performance
Gain
Output IP3
13.0
13.0
13.0
27
Noise Figure
Reverse Isolation
Input VSWR
Output VSWR
P1dB
14.0
14.0
14.0
+35.0
+31.0
+28.8
1.85
1.8
1.75
19
19
19
1.6:1
1.6:1
14
13
12
15.6
14.1
13.1
2.7
11.5
2.5 to 6.0
2.8
19.5
16
18
18
20.5
14.5
14.5
14.5
38
2.0
2.0
2.0
Power Down
Rev A7 001201
VCC =3.5V; VPD =2.8V; VPD +VCC - Current
Consumption from VPD is 2.0mA Typ. @
VPD =2.8V and 3.0mA Max @ VPD =2.9 V
VCC =3.5V; VPD =2.7V; VPD + VCC
VCC =3.5V; VPD =2.9V; VPD + VCC
VCC =3.5V; VPD ≤ 0.9 V
Schematic per Driver Amplifier Application;
T=25°C, RF=1880MHz, VPD =2.8V
dB
dB
dB
dBm
dBm
dBm
dB
dB
dB
dB
dB
dB
VCC =3.5V
VCC =3.0V
VCC =2.7V
VCC =3.5V
VCC =3.0V
VCC =2.7V
VCC =3.5V
VCC =3.0V
VCC =2.7V
VCC =3.5V
VCC =3.0V
VCC =2.7V
dBm
dBm
dBm
Using External LC network used on evaluation board.
VCC =3.5V
VCC =3.0V
VCC =2.7V
T = 25 °C
2.0:1
2.0:1
Power Supply
Voltage (VCC)
Voltage (VPD)
Current Consumption Driver Amplifier
Condition
2.9
25.5
V
V
mA
20
27
10
mA
mA
µA
4
GENERAL PURPOSE
AMPLIFIERS
Parameter
VCC =3.5V; VPD =2.8V; VPD +VCC - Current
Consumption from VPD is 2.0mA Typ.@
VPD =2.8V and 3.0mA Max @ VPD =2.9 V
VCC =3.5V; VPD =2.7V; VPD + VCC
VCC =3.5V; VPD =2.9V; VPD + VCC
VCC =3.5V; VPD ≤ 0.9 V
4-185
RF2361
Pin
1
Function
RF IN
Description
Interface Schematic
RF input pin. This pin is DC coupled and matched to 50Ω at 836 MHz.
To Bias
Circuit
RF OUT
RF IN
2
GND1
3
VPD
PD
For driver amplifier applications, this is the Power Down pin for the IC.
VPD =2.8V +/- 0.1V is required for proper operation. VPD< 0.9V turns
off the Part. External RF bypassing is required. 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. Nominal current required for VPD =2.8V is 2.0mA typical
and 3.0mA Max (@ VPD =2.9V).
4
GENERAL PURPOSE
AMPLIFIERS
Ground connection. Keep traces physically short and connect immediately to ground plane for best performance.
For low noise amplifier applications, this pin is used to control the bias
current. See plots for bias current settings. An external resistor (R1)
can be used to set the bias current for any VPD voltage.
4
RF OUT
5
GND2
4-186
Amplifier Output pin. This pin is an open-collector output. It must be
biased to either VCC or pin 4 through a choke or matching inductor.
This pin is typically matched to 50Ω with a shunt bias/matching inductor and series blocking/matching capacitor. Refer to application schematics.
Ground connection. Keep traces physically short and connect immediately to ground plane for best performance.
Rev A7 001201
RF2361
Application Schematic:
Low Noise Amplifier ~881MHz Operation
22 nF
J1
RF IN
1
5
2
2 pF
1k Ω
VPD
3
10 nF
J2
RF OUT
4
100 pF
12 nH
4
100 pF
GENERAL PURPOSE
AMPLIFIERS
VCC
10 nF
Application Schematic:
Low Noise Amplifier ~1950MHz Operation
22 nF
J1
RF IN
1
5
2
1 pF
1k Ω
VPD
3
10 nF
100 pF
J2
RF OUT
4
3.3 nH
VCC
100 pF
Rev A7 001201
10 nF
4-187
RF2361
Application Schematic:
Driver Amplifier ~836MHz Operation
22 nF
J1
RF IN
1
5
2
2 pF
0Ω
VPD
3
10 nF
4
J2
RF OUT
4
100 pF
12 nH
GENERAL PURPOSE
AMPLIFIERS
VCC
100 pF
10 nF
Application Schematic:
Driver Amplifier ~1880MHz Operation
22 nF
J1
RF IN
1
5
2
1 pF
0Ω
VPD
3
10 nF
100 pF
J2
RF OUT
4
3.3 nH
VCC
100 pF
4-188
10 nF
Rev A7 001201
RF2361
Evaluation Board Schematic:
Low Noise Amplifier ~881MHz Operation
(Download Bill of Materials from www.rfmd.com.)
P1
P1-1
1
VPD
2
GND
3
VCC
C7
4.7 µF
4
C3
22 nF
1
5
2
R1
1k Ω
50 Ω µstrip
VPD
3
C1
10 nF
C4
2 pF
50 Ω µstrip
4
C2
220 pF
J2
RF OUT
L1
12 nH
2361410 Rev-
VCC
C5
220 pF
C6
10 nF
Evaluation Board Schematic:
Driver Amplifier ~836MHz Operation
P1
P1-1
1
VPD
2
GND
3
VCC
C7
4.7 µF
J1
RF IN
50 Ω µstrip
C3
22 nF
1
5
2
R1
0Ω
50 Ω µstrip
VPD
3
C1
10 nF
C4
2 pF
50 Ω µstrip
4
C2
220 pF
L1
12 nH
2361400 Rev-
VCC
C5
220 pF
Rev A7 001201
J2
RF OUT
C6
10 nF
4-189
GENERAL PURPOSE
AMPLIFIERS
J1
RF IN
50 Ω µstrip
RF2361
Evaluation Board Layout - 900MHz Driver
Board Size 0.948” x 1.063”
Board Thickness 0.031”; Board Material FR-4
GENERAL PURPOSE
AMPLIFIERS
4
Evaluation Board Layout - 900MHz LNA
4-190
Rev A7 001201
RF2361
Driver Amp 836 MHz
ICC versus VPD
26.0
20.92
2.7V Icc (mA)
3.0V Icc (mA)
3.3V Icc (mA)
3.6V Icc (mA)
25.5
25.0
24.5
20.90
20.88
24.0
Driver Amp 836 MHz
Gain versus VPD
2.7V Gain (dB)
3.0V Gain (dB)
3.3V Gain (dB)
3.6V Gain (dB)
20.86
Gain (dB)
ICC (mA)
23.5
23.0
22.5
22.0
20.84
20.82
20.80
21.5
20.78
20.5
20.76
4
20.0
20.74
19.5
19.0
20.72
2.7
2.8
2.9
3.0
2.70
2.80
VPD
Driver Amp 836 MHz
OIP3 versus VPD
33.0
3.00
Driver Amp 836 MHz
POUT 1dB versus VPD
15.0
2.7V OIP3 (dBm)
3.0V OIP3 (dBm)
3.3V OIP3 (dBm)
3.6V OIP3 (dBm)
32.0
14.5
2.7V P 1dB (dBm)
3.0V P 1dB (dBm)
3.3V P 1dB (dBm)
3.6V P 1dB (dBm)
14.0
POUT 1dB (dBm)
31.0
OIP3 (dBm)
2.90
VPD
30.0
13.5
13.0
12.5
29.0
12.0
28.0
11.5
27.0
11.0
2.7
2.8
2.9
3.0
VPD
2.05
2.00
2.7
2.8
2.9
3.0
VPD
Driver Amp 836 MHz
Noise Figure versus VPD
2.7V NF (dB)
3.0V NF (dB)
3.3V NF (dB)
3.6V NF (dB)
NF (dB)
1.95
1.90
1.85
1.80
1.75
1.70
2.70
2.80
2.90
3.00
VPD
Rev A7 001201
4-191
GENERAL PURPOSE
AMPLIFIERS
21.0
RF2361
Low Noise Amplifier 881 MHz
Gain versus ICC
19.95
2.7V Gain (dB)
3.0V Gain (dB)
3.3V Gain (dB)
3.6V Gain (dB)
19.90
Low Noise Amplifier 881 MHz
OIP3 versus ICC
29.0
2.7V OIP3 (dBm)
3.0V OIP3 (dBm)
3.3V OIP3 (dBm)
3.6V OIP3 (dBm)
28.5
28.0
19.85
27.5
OIP3 (dBm)
Gain (dB)
19.80
19.75
19.70
27.0
26.5
26.0
25.5
4
19.65
GENERAL PURPOSE
AMPLIFIERS
25.0
19.60
24.5
19.55
6.00
24.0
6.50
7.00
7.50
8.00
8.50
9.00
9.50
10.00
6.0
6.5
7.0
7.5
ICC
Low Noise Amplifier 881 MHz
IIP3 versus ICC
9.0
8.0
8.5
9.0
9.5
10.0
9.5
10.0
Low Noise Amplifier 881 MHz
POUT 1dB versus ICC
13.5
2.7V IIP3 (dBm)
3.0V IIP3 (dBm)
3.3V IIP3 (dBm)
3.6V IIP3 (dBm)
8.5
8.0
ICC (mA)
2.7V Pout 1dB (dBm)
3.0V Pout 1dB (dBm)
3.3V Pout 1dB (dBm)
3.6V Pout 1dB (dBm)
13.0
12.5
POUT 1dB (dBm)
IIP3 (dBm)
7.5
7.0
6.5
6.0
12.0
11.5
11.0
5.5
10.5
5.0
10.0
4.5
4.0
9.5
6.0
6.5
7.0
7.5
8.0
8.5
9.0
9.5
10.0
ICC (mA)
6.0
6.5
7.0
7.5
8.0
8.5
9.0
ICC (mA)
Low Noise Amplifier 881 MHz
Noise Figure versus ICC
1.42
2.7V NF (dB)
3.0V NF (dB)
3.3V NF (dB)
3.6V NF (dB)
1.41
1.40
NF (dB)
1.39
1.38
1.37
1.36
1.35
1.34
1.33
6.00
6.50
7.00
7.50
8.00
8.50
9.00
9.50
10.00
ICC
4-192
Rev A7 001201