RF2442
RF2442
HIGH-LINEARITY LOW NOISE AMPLIFIER
RoHS Compliant & Pb-Free Product
Package Style: MSOP-8
Features





Low Noise and High Intercept
Point
External Bias Control
Single 2.5V to 5.0V Power
Supply
500MHz to 2500MHz Operation
Extremely Small MSOP-8
Package
VCC1 1
8 VCC2
GND1 2
7 NC
RF IN 3
6 RF OUT
GND2 4
5 NC
Applications






TDMA/CDMA/FM Cellular Rx
LNA
TDMA/CDMA PCS Rx LNA
Low Noise Transmit Driver
Amplifier
ISM Band LNA/Driver
General Purpose Amplification
Commercial and Consumer
Systems
Functional Block Diagram
Product Description
The RF2442 is a low noise amplifier with a very high dynamic range
designed for the receive front end of digital cellular applications at
900MHz, 1900MHz, and 2400MHz. It is designed to amplify low level signals with minimum noise contribution while operating in the harsh, interference-rich environments of newly deployed digital subscriber units. The
device also functions as an outstanding PA driver amplifier in the transmit
chain of digital subscriber units where low transmit noise power is a concern. The device supports trade-offs between linearity and current drain.
The designer has control of these trade-offs with the choice of an external
bias resistor. The IC is featured in a standard miniature 8-lead plastic
MSOP package.
Ordering Information
RF2442
RF2442 PCBA-L
RF2442 PCBA-M
RF2442 PCBA-H
GaAs HBT
GaAs MESFET
InGaP HBT
High-Linearity Low Noise Amplifier
Fully Assembled Evaluation Board (~900MHz)
Fully Assembled Evaluation Board (~1900MHz)
Fully Assembled Evaluation Board (~2400MHz)
Optimum Technology Matching® Applied
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.
DS121024
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or [email protected]
1 of 11
RF2442
Absolute Maximum Ratings
Parameter
Supply Voltage
Input RF Level
Rating
Unit
-0.5 to +6.0
VDC
+10
dBm
Operating Ambient Temperature
-40 to +85
°C
Storage Temperature
-40 to +150
°C
Parameter
Min.
Specification
Typ.
Max.
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.
Unit
Condition
Overall
RF Frequency Range
500 to 2500
MHz
Schematic Evaluation Board L (RC =0),
T=25°C, RF=881MHz
881MHz Performance
Gain
18
20
22
dB
VCC =3.6V
17
19
21
dB
VCC =3.0V
18
20
dB
VCC =2.5V
dBm
VCC =3.6V
16
Output P1dB
Output IP3
+13
+11
dBm
VCC =3.0V
+21
+27
dBm
VCC =3.6V
+16
+22
dBm
VCC =3.0V
+10
+16
dBm
VCC =2.5V
Noise Figure
Reverse Isolation
22
1.6
2.5
dB
VCC =3.6V
1.5
2.5
dB
VCC =3.0V
1.4
2.5
dB
VCC =2.5V
dB
VCC =3.6V
24
22
24
dB
VCC =3.0V
21
23
dB
VCC =2.5V
Schematic Evaluation Board M (RC =0),
T=25°C, RF=1960MHz
1960MHz Performance
Gain
10
12
14
dB
VCC =3.6V
10
12
14
dB
VCC =3.0V
12
14
10
Output P1dB
Output IP3
2 of 11
dB
VCC =2.5V
+16
dBm
VCC =3.6V
+13
dBm
VCC =3.0V
+26
dBm
VCC =3.6V
+15
+21
dBm
VCC =3.0V
+9
+15
dBm
VCC =2.5V
+20
Noise Figure
Reverse Isolation
Requires input tuning inductor below 1GHz
18
1.6
2.3
dB
VCC =3.6V
1.5
2.1
dB
VCC =3.0V
1.4
2.0
dB
VCC =2.5V
dB
VCC =3.6V
20
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or [email protected]
DS121024
RF2442
Parameter
Min.
Specification
Typ.
17
19
dB
VCC =3.0V
17
19
dB
VCC =2.5V
Max.
Unit
Condition
1960MHz Performance, cont.
Schematic Evaluation Board H (RC =0),
T=25°C, RF=2400MHz
2400MHz Performance
Gain
Output IP3
7
9
11
7
9
11
dB
VCC =3.0V
6
8
10
dB
VCC =2.5V
+20
+26
dBm
VCC =3.6V
+15
+21
dBm
VCC =3.0V
+9
+15
Noise Figure
Reverse Isolation
dB
dBm
VCC =2.5V
1.6
2.5
dB
VCC =3.6V
1.5
2.3
dB
VCC =3.0V
1.4
2.1
dB
VCC =2.5V
16
17
dB
VCC =3.6V
16
17
dB
VCC =3.0V
16
17
dB
VCC =2.5V
Power Supply
T=25°C
Voltage
Current Consumption
DS121024
VCC =3.6V
2.5 to 5.0
V
17
19
30
mA
VCC =3.6V
10
12
23
mA
VCC =3.0V
7
9
20
mA
VCC =2.5V
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or [email protected]
3 of 11
RF2442
Pin
1
Function
VCC1
2
GND1
3
RF IN
4
GND2
5
6
NC
RF OUT
7
8
NC
VCC2
Description
Interface Schematic
Supply voltage for the LNA. External RF and IF 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. This pin connects to pin 8 through a 150 resistor.
This allows for simple biasing of the collector at pin 6. Refer to Application
Schematics 1 and 3.
Ground connection. For best performance, keep traces physically short
and connect immediately to ground plane.
RF input pin. This pin is internally DC-blocked and matched to 50 for frequencies above 1GHz. When using below 1GHz, it is recommended that
this pin be matched with series inductance to series-resonate out the internal blocking capacitor. Refer to Application Schematics 1 and 2.
150 
VCC1
VCC2
BIAS
To bias circuits
LNA OUT
LNA IN
Ground connection. For best performance, keep traces physically short
and connect immediately to ground plane.
No connection. This pin is typically left unconnected or grounded.
LNA Output pin. This pin is an open-collector output. It must be biased to
either VCC or pin 8 through a choke or matching inductor. This pin is typically matched to 50 with a shunt bias/matching inductor and series
blocking/matching capacitor. Refer to application schematics.
No connection. This pin is typically left unconnected or grounded.
See pin 3.
Optional power supply connection for biasing pin 6. This pin connects to
pin 1 through a 150 resistor. This allows for simple biasing of the collector at pin 6. When used, this pin should be RF bypassed. Refer to Application Schematics 1 and 3.
See pin 1.
Package Drawing
0.192
± 0.008
0.006
± 0.003
0.012
-A-
0.0256
0.118
± 0.004 sq
0.034
6° MAX
0° MIN
0.021
± 0.004
4 of 11
0.006
± 0.002
Shaded lead is pin 1.
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or [email protected]
DS121024
RF2442
Evaluation Board Schematic (L board)
~900 MHz
C1
1 nF
VCC
2442401-
C2
22 pF
J1
RF IN
50  strip
L2
8.2 nH
C5
1.5 pF
R1
0
1
8
2
7
3
6
4
5
L1
15 nH
C3
22 pF
50  strip
C4
1.5 pF
J2
RF OUT
Evaluation Board Schematic (M board)
~1900 MHz
C1
1 nF
VCC
2442400B
C2
22 pF
J1
RF IN
R1
0
1
8
2
7
3
6
50  strip
4
L1
4.7 nH
C3
22 pF
50  strip
C4
1.0 pF
5
J2
RF OUT
Evaluation Board Schematic (H board)
~2400 MHz
C1
1 nF
VCC
2442402-
C2
22 pF
J1
RF IN
DS121024
R1
0
1
8
2
7
3
6
4
5
50  strip
L1
3.9 nH
C3
22 pF
50  strip
C4
0.5 pF
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or [email protected]
J2
RF OUT
5 of 11
RF2442
Evaluation Board Layout 900MHz
Board Size 1.150" x 1.165"
Evaluation Board Layout 1900MHz
Board Size 1.150" x 1.165"
6 of 11
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or [email protected]
DS121024
RF2442
Evaluation Board Layout 2400MHz
Board Size 1.150" x 1.165"
DS121024
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or [email protected]
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RF2442
Gain vs. Output Level
(Freq = 881MHz)
30
Noise Figure vs. Frequency
2.5
Vcc=3.0, Noise Match
Vcc=3.0, Gmax Match
2.0
Vcc=3.6, Noise Match
Vcc=3.6, Gmax Match
Noise Figure (dB)
Gain (dB)
25
20
1.5
1.0
Vcc=3.0, Noise Match
Vcc=3.0, Gmax Match
15
0.5
Vcc=3.6, Noise Match
Vcc=3.6, Gmax Match
10
0.0
-10
-5
0
5
10
800
15
850
Output Level (dBm)
Input IP3 vs. Input Level
(Freq = 881MHz)
10
950
1000
Output IP3 vs. Output Level
(Freq = 881MHz)
30
25
Output IP3 (dBm)
5
Input IP3 (dBm)
900
Frequency (MHz)
0
20
Vcc=3.0, Noise Match
Vcc=3.0, Noise Match
Vcc=3.0, Gmax Match
-5
Vcc=3.0, Gmax Match
15
Vcc=3.6, Noise Match
Vcc=3.6, Noise Match
Vcc=3.6, Gmax Match
Vcc=3.6, Gmax Match
-10
10
-30
-25
-20
-15
-10
-5
-10
-5
0
Input Level (dBm)
Output IM3 Level vs. Input Level
(Freq = 881MHz)
10
5
10
15
-10
-5
Output Level (dBm)
Power Out vs. Power In
(Freq = 881MHz)
20
Vcc=3.0, Noise Match
0
15
Output Level, single tone (dBm)
Output IM3 Level, per tone (dBm)
Vcc=3.6, Noise Match
-10
Ideal IM3 Slope
-20
-30
-40
-50
-60
-70
Vcc = 3.0V
10
Vcc = 3.6V
Ideal Gain Slope (3.6V)
5
0
-5
-80
-90
-10
-30
-25
-20
-15
Input Level, per tone (dBm)
8 of 11
-10
-5
-30
-25
-20
-15
Input Level, single tone (dBm)
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or [email protected]
DS121024
RF2442
Icc vs. Output Level
(Freq = 881MHz)
25
Efficiency vs. Output Level
(Freq = 881MHz)
50%
Vcc=3.0, Noise Match
45%
Vcc=3.0, Noise Match
Vcc=3.0, Gmax Match
Vcc=3.6, Noise Match
Vcc=3.6, Gmax Match
35%
Efficiency (%)
Icc (mA)
Vcc=3.0, Gmax Match
40%
Vcc=3.6, Noise Match
20
15
Vcc=3.6, Gmax Match
30%
25%
20%
15%
10
10%
5%
5
0%
-10
-5
0
5
10
15
-10
-5
0
Output Level (dBm)
Gain vs. Output Level
(Freq = 1960MHz)
20
5
10
15
1900
2000
Output Level (dBm)
Noise Figure vs. Frequency
2.0
Vcc = 3.6V
Vcc = 3.0V
1.6
Gain (dB)
Noise Figure (dB)
15
10
1.2
0.8
Vcc = 3.6V
0.4
Vcc = 3.0V
5
0.0
-20
-10
0
10
20
1500
1600
1700
Output Level (dBm)
Input IP3 vs. Input Level
(Freq = 1960MHz)
20
Output IP3 vs. Input Level
(Freq = 1960MHz)
30
25
Input IP3 (dBm)
15
Input IP3 (dBm)
1800
Frequency (MHz)
10
5
20
15
Vcc = 3.6V
Vcc = 3.6V
Vcc = 3.0V
Vcc = 3.0V
0
10
-20
-15
-10
Input Level (dBm)
DS121024
-5
0
-20
-15
-10
-5
0
Input Level (dBm)
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or [email protected]
9 of 11
RF2442
Output IM3 Level vs. Input Level
(Freq = 1960MHz)
0
Power Out vs. Power In
(Freq = 1960MHz)
20
Vcc = 3.6V
Vcc = 3.0V
15
Output Level, single tone (dBm)
Output IM3 Level, per tone (dBm)
-10
Ideal IM3 Slope
-20
-30
-40
-50
-60
10
5
0
Vcc = 3.0V
Vcc = 3.6V
-5
Ideal Gain Slope (3.6V)
-70
-80
-10
-20
-15
-10
-5
0
-20
-15
Input Level, per tone (dBm)
Icc vs. Output Level
(Freq = 1960MHz)
25
-10
-5
0
5
10
15
20
Input Level, single tone (dBm)
Efficiency vs. Output Level
(Freq = 1960MHz)
70%
Vcc = 3.6V
Vcc = 3.0V
60%
Vcc = 3.0V
Vcc = 3.6V
20
Efficiency (%)
Icc (mA)
50%
15
40%
30%
20%
10
10%
5
0%
-20
-10
0
Output Level (dBm)
10 of 11
10
20
-10
-5
0
5
10
Output Level (dBm)
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or [email protected]
DS121024
RF2442
RoHS* Banned Material Content
RoHS Compliant:
Yes
Package total weight in grams (g):
0.025
Compliance Date Code:
0629
Bill of Materials Revision:
-
Pb Free Category:
B i l l o f Ma te r i a l s
e3
Pa r ts Pe r Mi l l i o n (PPM)
Pb
Cd
Hg
Cr VI
PB B
PB DE
Di e
0
0
0
0
0
0
Mo l d i ng Co mp o und
0
0
0
0
0
0
Le a d F r a m e
0
0
0
0
0
0
Di e Atta ch Ep o x y
0
0
0
0
0
0
Wi r e
0
0
0
0
0
0
So l d e r Pl a ti ng
0
0
0
0
0
0
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 ud i ng a na l y ti ca l
d a ta , pr o v i de d to R F MD b y i ts sup p l i e r s, a nd a pp 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
DS121024
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or [email protected]
11 of 11
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