Datasheet RF2442, RF2442PCBA-H, RF2442PCBA-L, RF2442PCBA-M Datasheet (RF Micro Devices)

RF2442

4

Typical Applications

• TDMA/CDMA/FM Cellular Rx LNA

• TDMA/CDMA PCS Rx LNA

• Low Noise Transmit Driver Amplifier

Product Description

TheRF2442isalownoiseamplifierwithaveryhigh
dynamic range designed for the receive front end of digi­tal cellular applications at 900MHz, 1900MHz, and
2400 MHz. 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 suppor ts 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.

HIGH-LINEARITY LOW NOISE AMPLIFIER

• ISM Band LNA/Driver

• General Purpose Amplification

• Commercial and Consumer Systems

0.006

+0.003

-A-

0.034

6° MAX

0° MIN

0.192

+ 0.008

0.118

+0.004sq.

0.021

+0.004

0.012

0.0256

0.006

+0.002

NOTES:

1. Shaded lead ispin 1.

2. All dimensions areexclusiveof
flash, protrusions or burrs.

3. Lead coplanarity: 0.002 with
respect to datum "A".

4

AMPLIFIERS

GENERAL PURPOSE

Optimum Technology Matching® Applied

Si BJT GaAs MESFETGaAs HBT
Si Bi-CMOS

VCC1

GND1

RF IN

GND2

ü

SiGe HBT

1

2

3

4

Si CMOS

8

VCC2

7

NC

6

RF OUT

5

NC

Functional Block Diagram

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

Ordering Information

RF2442 High-Linearity LowNoise Amplifier
RF2442 PCBA-L Fully Assembled Evaluation Board (~900MHz)
RF2442 PCBA-M Fully Assembled Evaluation Board (~1900MHz)
RF2442 PCBA-H Fully Assembled Evaluation Board (~2400MHz)

RF Micro Devices, Inc.
7628 Thorndike Road
Greensboro,NC 27409, USA

Tel [phone]

Fax [phone]

http://www.rfmd.com

Rev B6 010612

4-231

RF2442

Absolute Maximum R atings

Parameter Rating Unit

Supply Voltage -0.5 to +6.0 V
Input RF Level +10 dBm

Operating Ambient Te mperature -40 to +85 °C
Storage Temperature -40 to +150 °C

DC

Caution! ESD sensitive device.

RF Micro Devices believes thefurnished information iscorrect andaccurate
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).

4

GENERAL PURPOSE

Parameter

Min. Typ. Max.

Specification

Unit Condition

Overall

RF Frequency Range 500 to 2500 MHz Requires input tuning inductor below 1GHz

881 MHz Performance

Gain 18 20 22 dB V

17 19 21 dB V
16 18 20 dB V

Output P1dB +13 dBm V

AMPLIFIERS

+11 dBm V

Output IP3 +21 +27 dBm V

+16 +22 dBm V
+10 +16 dBm VCC=2.5V

Noise Figure 1.6 2.5 dB V

1.5 2.5 dB V

1.4 2.5 dB V

Reverse Isolation 22 24 dB V

22 24 dB V
21 23 dB V

1960 MHz Performance

Gain 10 12 14 dB V

10 12 14 dB V
10 12 14 dB V

Output P1dB +16 dBm V

+13 dBm V

Output IP3 +20 +26 dBm V

+15 +21 dBm V

+9 +15 dBm V

Noise Figure 1.6 2.3 dB V

1.5 2.1 dB V

1.4 2.0 dB V

Reverse Isolation 18 20 dB VCC=3.6V

17 19 dB V
17 19 dB V

Schematic Evaluation Boa rd L (RC=0),
T=25°C, RF= 881MHz

=3.6V

CC

=3.0V

CC

=2.5V

CC

=3.6V

CC

=3.0V

CC

=3.6V

CC

=3.0V

CC

=3.6V

CC

=3.0V

CC

=2.5V

CC

=3.6V

CC

=3.0V

CC

=2.5V

CC

Schematic Evaluation Boa rd M (RC=0),
T=25°C, RF= 1960MHz

=3.6V

CC

=3.0V

CC

=2.5V

CC

=3.6V

CC

=3.0V

CC

=3.6V

CC

=3.0V

CC

=2.5V

CC

=3.6V

CC

=3.0V

CC

=2.5V

CC

=3.0V

CC

=2.5V

CC

4-232

Rev B6 010612

RF2442

Parameter

Min. Typ. Max.

2400MHz Performance

Gain 7 9 11 dB V

Output IP3 +20 +26 dBm V

Noise Figure 1.6 2.5 dB V

Reverse Isolation 16 17 dB V

Power Supply

Voltage 2.5 to 5.0 V
Current Consumption 17 19 30 mA VCC=3.6V

Specification

7911dBV
6810dBV

+15 +21 dBm V

+9 +15 dBm VCC=2.5V

1.5 2.3 dB V

1.4 2.1 dB V

16 17 dB V
16 17 dB V

10 12 23 mA V

7920mAV

Unit Condition

Schematic Evaluation Board H (RC=0),
T=25°C, RF=2400MHz

=3.6V

CC

=3.0V

CC

=2.5V

CC

=3.6V

CC

=3.0V

CC

=3.6V

CC

=3.0V

CC

=2.5V

CC

=3.6V

CC

=3.0V

CC

=2.5V

CC

T=25°C

=3.0V

CC

=2.5V

CC

4

AMPLIFIERS

GENERAL PURPOSE

Rev B6 010612

4-233

4

GENERAL PURPOSE

RF2442

Pin Function Description Interface Schematic

1 VCC1

2 GND1
3RFIN

4 GND2
5NC

6RFOUT

AMPLIFIERS

7NC
8 VCC2

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
150Ω 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 internal ly DC-blocked and matched to 50Ω 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.
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 V

typically matched to 50Ω with a shunt bias/matching inductor and
series blocking/matching capacitor. Refer to application sc hematics.

No connection. This pin is typically left unconnected or grounded.
Optional power supply connection for biasing pin 6. This pin connects

to pin 1 through a 150Ω 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.

or pin 8 through a choke or matching inductor. This pin is

CC

VCC1 VCC2

LNA IN

See pin 3.

See pin 1.

150 Ω

BIAS

To bias circuits

LNA OUT

4-234

Rev B6 010612

J1

RF IN

Evaluation Board Schema tic (L board)

~900 MHz

(Download Bill of Materials from www.rfmd.com.)

C1

1nF

2442401-

8

7

6

5

L1

15 nH

50Ωµstrip

C2

22 pF

L2

8.2 nH

C5

1.5 pF

1

2

3

4

Evaluation Board Schematic (M board)

~1900 MHz

R1

0

Ω

C3

22 pF

C4

1.5 pF

RF2442

50Ωµstrip

VCC

J2

RF OUT

4

AMPLIFIERS

GENERAL PURPOSE

J1

RF IN

J1

RF IN

50Ωµstrip

50Ωµstrip

C1

1nF

C2

22 pF

2442400B

1

2

3

4

8

7

4.7 nH

6

5

L1

R1

0

Ω

C3

22 pF

C4

1.0 pF

50Ωµstrip

Evaluation Board Schematic (H board)

~2400 MHz

C1

1nF

C2

22 pF

2442402-

1

2

3

4

8

7

3.9 nH

6

5

L1

R1

0

Ω

C3

22 pF

C4

0.5 pF

50Ωµstrip

VCC

J2

RF OUT

VCC

J2

RF OUT

Rev B6 010612

4-235

4

RF2442

Evaluation Board Layout 900MHz

Board Size 1.150" x 1.165"

AMPLIFIERS

GENERAL PURPOSE

Evaluation Board Layout 1900MHz

Board Size 1.150" x 1.165"

4-236

Rev B6 010612

Evaluation Board Layout 2400MHz

Board Size 1.150" x 1.165"

RF2442

4

AMPLIFIERS

GENERAL PURPOSE

Rev B6 010612

4-237

RF2442

4

GENERAL PURPOSE

AMPLIFIERS

Gain vs. Output Level

30

Vcc=3.0, Noise Match
Vcc=3.0, Gmax Match

25

20

Vcc=3.6, Noise Match
Vcc=3.6, Gmax Match

Gain (dB)

15

10

-10 -5 0 5 10 15

(Freq = 881MHz)

Output Level (dBm)

Input IP3 vs. Input Level

10

5

(Freq = 881MHz)

Noise Figure vs. Frequency

2.5

2.0

1.5

1.0

Noise Figure (dB)

0.5

0.0
800 850 900 950 1000

Vcc=3.0,Noise Match
Vcc=3.0,GmaxMatch
Vcc=3.6,Noise Match
Vcc=3.6,GmaxMatch

Frequency (MHz)

Output IP3 vs. Output Level

30

25

(Freq = 881MHz)

0

Input IP3 (dBm)

Vcc=3.0, Noise Match

-5

-10

-30 -25 -20 -15 -10 -5

Vcc=3.0, Gmax Match
Vcc=3.6, Noise Match
Vcc=3.6, Gmax Match

InputLevel (dBm)

OutputIM3 Levelvs. Input Level

10

0

-10

-20

-30

-40

-50

-60

Output IM3 Level, per tone (dBm)

-70

-80

-90

-30 -25 -20 -15 -10 -5

Vcc=3.0, Noise Match

Vcc=3.6, Noise Match

Ideal IM3 Slope

(Freq = 881MHz)

InputLevel,per tone (dBm)

20

Output IP3 (dBm)

15

10

-10 -5 0 5 10 15

Vcc=3.0,NoiseMatch
Vcc=3.0, Gmax Match
Vcc=3.6,NoiseMatch
Vcc=3.6, Gmax Match

Output Level (dBm)

PowerOut vs. Power In

20

15

10

5

0

Vcc = 3.0V
Vcc = 3.6V
Ideal Gain Slope (3.6V)

Output Level, single tone (dBm)

-5

-10

-30 -25 -20 -15 -10 -5

(Freq = 881MHz)

InputLevel,single tone (dBm)

4-238

Rev B6 010612

RF2442

Icc vs. Output Level

25

Vcc=3.0, Noise Match
Vcc=3.0, Gmax Match

20

15

Vcc=3.6, Noise Match
Vcc=3.6, Gmax Match

Icc (mA)

10

5

-10 -5 0 5 10 15

(Freq = 881MHz)

Output Level (dBm)

Gain vs. Output Level

20

15

(Freq = 1960MHz)

Vcc = 3.6V

Vcc = 3.0V

Efficiencyvs. OutputLevel

50%

45%

40%

35%

30%

25%

20%

Efficiency (%)

15%

10%

5%

0%

-10 -5 0 5 10 15

(Freq = 881MHz)

Vcc=3.0, Noise Match
Vcc=3.0, Gmax Match
Vcc=3.6, Noise Match
Vcc=3.6, Gmax Match

OutputLevel (dBm)

Noise Figure vs. Frequency

2.0

1.6

1.2

4

AMPLIFIERS

GENERAL PURPOSE

Gain (dB)

10

5

-20 -10 0 10 20

Output Level (dBm)

Input IP3 vs. Input Level

20

15

10

Input IP3 (dBm)

5

0

-20 -15 -10 -5 0

(Freq = 1960MHz)

Vcc = 3.6V

Vcc = 3.0V

InputLevel (dBm)

0.8

Noise Figure (dB)

0.4

0.0
1500 1600 1700 1800 1900 2000

Vcc = 3.6V

Vcc = 3.0V

Frequency (MHz)

OutputIP3 vs. Input Level

30

25

20

Input IP3 (dBm)

15

10

-20 -15 -10 -5 0

(Freq = 1960MHz)

Vcc = 3.6V

Vcc = 3.0V

InputLevel (dBm)

Rev B6 010612

4-239

RF2442

4

GENERAL PURPOSE

AMPLIFIERS

OutputIM3 Levelvs. Input Level

0

-10

-20

-30

-40

-50

-60

Output IM3 Level, per tone (dBm)

-70

-80

-20 -15 -10 -5 0

(Freq = 1960MHz)

Vcc= 3.6V

Vcc= 3.0V

Ideal IM3 Slope

InputLevel,per tone (dBm)

Icc vs. Output Level

25

20

(Freq = 1960MHz)

Vcc = 3.6V
Vcc = 3.0V

PowerOut vs. Power In

20

15

10

5

0

Output Level, single tone (dBm)

-5

-10

-20 -15 -10 -5 0 5 10

(Freq = 1960MHz)

Vcc= 3.0V
Vcc= 3.6V
Ideal Gain Slope (3.6V)

InputLevel,single tone (dBm)

Efficiencyvs. OutputLevel

70%

60%

50%

(Freq = 1960MHz)

Vcc= 3.0V
Vcc= 3.6V

15

Icc (mA)

10

5

-20 -10 0 10 20

Output Level (dBm)

40%

30%

Efficiency (%)

20%

10%

0%

-10-5 0 5 101520

OutputLevel (dBm)

4-240

Rev B6 010612