Datasheet RF2320, RF2320PCBA Datasheet (RF Micro Devices)

Preliminary

RF2320

3

Typical Applications

• CATV Distribution Amplifiers

• Cable Modems

• Broadband Gain Blocks

Product Description

The RF2320 is a general purpose, low-cost, high-linearity
RF amplifier IC. The device is manufactured on a Gallium
Arsenide process and is featured in an SOP-16 batwing
package. It has been designed for use as an easily cas­cadable 75Ω gain block with a noise figure of less than
2dB. Gain flatness better than 0.5 dB from 5M Hz to
1000 MHz, and high linearity make this part ideal for cable
TV applications. Other applications include IF and RF
amplification in wireless voice and data communication
products operating in frequency bands up to 2500MHz.
The device i s self-contained with 75Ω input and output
impedances providing 2:1 VSWR matching. For higher
input and output return losses, see the evaluation sche­matic.

LINEAR GENERAL PURPOSE AMPLIFIER

• Laser Diode Driver

• Return Channel Amplifier

• Base Stations

-A-

0.009

0.004

0.050

8° MAX

0° MIN

0.392

0.386

0.158

0.150

0.244

0.230

0.035

0.016

0.010

0.008

0.021

0.014

0.069

0.064

0.060

0.054

3

LINEAR CATV

AMPLIFIERS

Optimum Technology Matching® Applied

Si BJT GaAs MESFETGaAs HBT
Si Bi-CMOS

NC

NC

GND

GND

GND

RF IN

NC

NC

1

2

3

4

5

6

7

8

SiGe HBT

ü

Si CMOS

NC

16

NC

15

RF OUT

14

GND

13

GND

12

NC

11

NC

10

NC

9

Functional Block Diagram

Package Style: Standard Batwing

Features

• 5MHz to 2500MHz Operation

• Internally Matched Input and Output

• 16dB Small Signal Gain

• 1.6dB Noise Figure

• +22dBm Output Power

•Single6Vto9VPositivePowerSupply

Ordering Information

RF2320 Linear General Purpose Amplifier
RF2320 PCBA Fully Assembled Evaluation Board

RF Micro Devices, Inc.
7625 ThorndikeRoad
Greensboro,NC 27409, USA

Tel [phone]

Fax [phone]

http://www.rfmd.com

Rev A8 010417

3-27

RF2320

Absolute Maximum Ratings

Parameter Rating Unit

Device Current 175 mA
Device Voltage 9 V
Input RF Power +10 dBm
Output Load VSWR 20:1
Ambient Operating Temperature -40 to +85 °C
Storage Temperature -40 to +150 °C

Preliminary

Caution! ESD sensitive device.

RF Micro Devices believes the furnished information is correctand accurate
at thetime ofthis printing. However, RFMicro Devices reservesthe right to
make changes to its products without notice. RF Micro Devices does not
assume responsibility for the use of the described product(s).

3

LINEAR CATV

Parameter

Min. Typ. Max.

Overall (50Ω)

Frequency Range 5 to 2500 MHz 3dB Bandwidth
Input VSWR 2:1 Appropriate values for the DC blocking

AMPLIFIERS

Output VSWR 1.3:1 See note for Input VSWR.
Gain 15 dB At 100MHz

Gain Flatness +/-1 dB From 5MHz to 2500MHz
Noise Figure 1.8 dB From 5MHz to 900MHz

Output IP

Output IP
Output P

Reverse Isolation 20 dB

Gain 16.5 dB At 100MHz

Noise Figure 1.8 dB From 5MHz to 900MHz,

Output IP

Output IP
Output P

3

2

1dB

3

2

1dB

Specification

16 dB At 2000MHz

2.6 dB From 900MHz to 2500MHz,
35 dBm At 100MHz

36 dBm At 1000MHz

39.6 dBm At 1000MHz

21.5 dBm At 100MHz

22.5 dBm At 1000MHz
18 dBm At 2000MHz

16.7 dB At 1000MHz

2.6 dB From 900MHz to 2500MHz,
36 dBm At 100MHz

36.3 dBm At 1000MHz

39.8 dBm At 1000MHz
23 dBm At 100MHz

24.7 dBm At 1000MHz

19.5 dBm At 2000MHz

Unit Condition

T=25 °C,VDD=7V, 50Ω System, PIN=-

10dBm

capacitor and bias inductor ar e r equired to
maintain this VSWR at the intended operat­ing frequency range.

T=25 °C,V

10dBm

=9V, 50Ω System, PIN=-

DD

Power Supply

Supply Voltage (VDD)679V
Operating Current Range 75 85 100 mA

3-28

Rev A8 010417

Preliminary

RF2320

Parameter

Min. Typ. Max.

Overall (75Ω)

Frequency Range 5 to 2500 MHz 3dB Bandwidth
Input VSWR 1.6:1 Appropriate values for the output DC block-

Output VSWR 1.3:1 See note for input VSWR.
Gain 15 dB At 500MHz
Gain Flatness +1-0.5 dB 5MHz to 1000MHz
Output IP

Output IP

Output IP

3

2

1dB

110 Channels

XMOD -71 dBc At 55.25MHz

CTB -79 dBc At 55.25MHz

CSO+1.25MHz -91 dBc At 55.25MHz

CSO-1.25MHz -51 dBc At 55.25MHz

CNR +65 dB At 55.25MHz

Specification

34.6 dBm At 10MHz, Delta F1 and F2 = 1MHz

36.1 dBm At 500MHz

33.1 dBm At 1000MHz

49.9 dBm At 100MHz, Delta F1 and F2 = 156MHz

48.5 dBm At 1000MHz
21 dBm At 10MHz

23 dBm At 500MHz
22 dBm At 1000MHz

-72 dBc At 331.25MHz

-72 dBc At 547.25MHz

-78 dBc At 331.25MHz

-78 dBc At 547.25MHz

-58 dBc At 331.25MHz

-56 dBc At 547.25MHz

-53 dBc At 331.25MHz

-58 dBc At 547.25MHz

+64 dB At 331.25MHz
+64 dB At 547.25MHz

Unit Condition

T=25oC, VDD=7V, 75Ω System, PIN=-8dBm

ing capacitor and bias inductor are required
to maintain this VSWR over the intended
operating frequency range.

10dBmV per channel, flat, at theinput of the
amplifier; V

=7V,ICC=75mA

CC

Power Supply

Supply Voltage (VDD)679V
Operating Current Range 75 85 100 mA

3

LINEAR CATV

AMPLIFIERS

Rev A8 010417

3-29

3

LINEAR CATV

RF2320

Preliminary

Pin Function Description Interface Schematic

1NC
2NC
3GND

4GND
5GND
6RFIN

7NC
8NC

AMPLIFIERS

9NC
10 NC
11 NC
12 GND
13 GND
14 RF OUT

No connection. This pin should be connected to the ground plane.
Same as pin 1.
Ground connection. Keep traces physically short and connect immedi-

ately to ground plane for best performance. Each ground pin should
have a via to the ground plane.

Same as pin 3.
Same as pin 3.
RF input pin. This pin is not internally DC blocked. A DC blocking

capacitor suitable for the frequency of operation is required if DC is
present from the previous stage. The gate voltage is nominally 0V but
can be raisedexternallyto increase the bias level. Thiswillincreasethe
currentdrain but improve linearity.

Same as pin 1.
Same as pin 1.
Same as pin 1.
Same as pin 1.
Same as pin 1.
Same as pin 3.
Same as pin 3.
RF output and bias pin. Because DC is present on this pin, a DC block-

ing capacitor, suitable forthe frequency of operation, should be used in
most applications. For biasing, only an RF choke is needed.

RF OUT

15 NC
16 NC

RF IN

Same as pin 1.
Same as pin 1.

3-30

Rev A8 010417

Preliminary

Application Schemati c

1930-1990MHz Narrowband Operation

V

DD

1nF

RF2320

16

15

14

13

12

11

10

9

150

1.8 nH

1.5 pF

1

2

3

4

5

22 pF

6

7

8

Application Schemati c

869-894MHz Narrowband Operation

1

16

100

22 pF

3

4.7 nH

22 pF

AMPLIFIERS

LINEAR CATV

V

DD

100 pF

Rev A8 010417

8.2 nH

2pF

100 pF

2

3

4

5

6

7

8

15

14

13

12

11

10

3pF

9

8.2 nH

100 pF

3-31

3

RF2320

P1

Preliminary

Evaluation Board Schematic - 50Ω

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

L2

1uH

VDD

C1

10 nF

C2

10 nF

J2

OUT

1

VDDP1-1

2

GND
GND

3

1

2

3

16

15

14

LINEAR CATV

4

L1

J1

IN

4.7 nH

AMPLIFIERS

5

6

7

8

13

12

11

10

9

Drawing 2320400 Rev 1

Evaluation Board Schematic - 75Ω

J1
IN

P1

1

GND
GND

2

P1-3 VDD

3

C1

1.5 pF

L1

10 nH

L2

390 nH

1

2

3

4

5

6

7

16

15

14

13

12

11

10

L3

390 nH

P1-3

C2

10 nF

R4

10

C4

1nF

C3

Ω

0.5 pF

J2

OUT

NOTES:

J1 and J2 are75ΩF connectors.

3-32

8

9

Drawing 2320401 Rev -

Rev A8 010417

Preliminary

Evaluation Board Layout - 50Ω

Board Size 1.5” x 1.5”

Board Thickness 0.031”, Board Material FR-4

Evaluation Board Layout - 75Ω

Board Thickness 0.062”, Board Material FR-4

RF2320

3

LINEAR CATV

AMPLIFIERS

Rev A8 010417

3-33

RF2320

N

Preliminary

3

LINEAR CATV

Gain, OIP3, and OIP2 versus Frequency

V

-9V, Temp = 25°C, Pin = -8dB

IP3
IP2
Gain

DD

17.0

16.5

16.0

15.5

42.0

41.0

40.0

39.0

Gain (dB)

15.0

14.5

14.0

OIP3, OIP2(dBm)

38.0

37.0

36.0

50.0

45.0

40.0

35.0

OIP3, OIP2(dBm)

30.0

25.0

AMPLIFIERS

0.0 500.0 1000.0 1500.0 2000.0

Frequency(MHz)

Gain, OIP3, and OIP2 versus Pin

V

-9V, Temp =25°C, Freq =1000MHz

42.0

40.0

38.0

36.0

34.0

OIP3, OIP2(dBm)

32.0

30.0

28.0

-10.0 -8.0 -6.0 - 4.0 -2.0 0.0 2.0 4.0 6.0 8.0

DD

IP3
IP2
Gain

Pin (dBm)

17.0

16.9

16.8

16.7

16.6

16.5

16.4

16.3

16.2

16.1

16.0

Gain (dB)

3.5

3.0

2.5

2.0

1.5

Noise Figure(dB)

1.0

0.5

0.0

Gain, OIP3, and OIP2 versusTemperature

V

-9V, Pin = -8dBm, Freq= 1000MHz

DD

IP3
IP2
Gain

-60.0 -40.0 -20.0 0.0 20.0 40.0 60.0 80.0 100.0

17.0

16.9

16.8

16.7

16.6

16.5

16.4

16.3

16.2

16.1

16.0

Temperature (°C)

oise Figure versus Frequency Across Temperature

(V

=7.0V)

CC

-40degC
+25degC
+85degC

0.0 200.0 400.0 600.0 800.0 1000.0 1200.0 1400.0 1600.0

Frequency(MHz)

Gain (dB)

Noise Figure versusFrequency Across Temperature

(V

=9.0V)

3.5

3.0

2.5

2.0

1.5

-40degC
+25degC
+85degC

CC

Noise Figure(dB)

1.0

0.5

0.0

0.0 200.0 400.0 600.0 800.0 1000.0 1200.0 1400.0 1600.0

Frequency(MHz)

3-34

Rev A8 010417

Preliminary

50 Ohm, 8V - Return Loss

6

.

4

.

0

2

.

0

RF2320

0

.

2

Swp Max

3000MHz

0

.

3

0

.

4

0

.

5

.

0

1

3

0

8

1.0-1.0

.

0

0

0

.

0

-

0.2

2

4

.

0

-

0.4

0.6

6

.

0

-

8

.

0

-

0.8

1.0

S[2,2]

2.0

3.0

10.0

5.0

4.0

0

.

3

-

0

.

2

-

S[1,1]

AMPLIFIERS

0

.

0

1

-

0

.

5

-

0

.

4

-

LINEAR CATV

Swp Min

0.03MHz

Rev A8 010417

3-35

3

RF2320

75 Ohm, 8V - Return Loss

4

.

0

2

.

0

Preliminary

2

0

.

Swp Max

3000MHz

0

.

3

0

.

4

0

.

5

.

0

1

0

8

1.0-1.0

.

6

.

0

0

LINEAR CATV

0

0.2

0.4

0.6

AMPLIFIERS

2

.

0

-

4

.

0

-

6

.

0

-

8

.

0

-

0.8

1.0

2.0

3.0

5.0

4.0

10.0

S[2,2]

0

.

3

-

0

.

2

-

S[1,1]

0

.

0

1

-

0

.

5

-

0

.

4

-

Swp Min

1MHz

3-36

Rev A8 010417