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Preliminary
RF2320
LINEAR GENERAL PURPOSE AMPLIFIER
3
Typical Applications
* CATV Distribution Amplifiers * Cable Modems * Broadband Gain Blocks
* Laser Diode Driver * Return Channel Amplifier * Base Stations
3
-A0.158 0.150 0.021 0.014 0.009 0.004
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 75 gain block with a noise figure of less than 2dB. Gain flatness better than 0.5dB from 5MHz to 1000MHz, 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 is self-contained with 75 input and output impedances providing 2:1 VSWR matching. For higher input and output return losses, see the evaluation schematic. Optimum Technology Matching(R) Applied
Si BJT Si Bi-CMOS GaAs HBT SiGe HBT
0.392 0.386
0.069 0.064
0.050
0.244 0.230 8 MAX 0 MIN 0.010 0.008
0.060 0.054
0.035 0.016
u
Package Style: Standard Batwing
GaAs MESFET Si CMOS
Features
* 5MHz to 2500MHz Operation * Internally Matched Input and Output * 16dB Small Signal Gain * 1.6dB Noise Figure * +22dBm Output Power * Single 6V to 9V Positive Power Supply
NC 1 NC 2 GND 3 GND 4 GND 5 RF IN 6 NC 7 NC 8
16 NC 15 NC 14 RF OUT 13 GND 12 GND 11 NC 10 NC 9 NC
Ordering Information
RF2320 RF2320 PCBA Linear General Purpose Amplifier Fully Assembled Evaluation Board
Functional Block Diagram
RF Micro Devices, Inc. 7625 Thorndike Road Greensboro, NC 27409, USA
Tel (336) 664 1233 Fax (336) 664 0454 http://www.rfmd.com
Rev A8 010417
3-27
LINEAR CATV AMPLIFIERS
Product Description
RF2320
Absolute Maximum Ratings Parameter
Device Current Device Voltage Input RF Power Output Load VSWR Ambient Operating Temperature Storage Temperature
Preliminary
Rating
175 9 +10 20:1 -40 to +85 -40 to +150
Unit
mA V 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).
3
Parameter
LINEAR CATV AMPLIFIERS
Specification Min. Typ. Max.
5 to 2500 2:1
Unit
Condition
T=25 C, VDD =7V, 50 System, PIN =10dBm 3dB Bandwidth Appropriate values for the DC blocking capacitor and bias inductor are required to maintain this VSWR at the intended operating frequency range. See note for Input VSWR. At 100MHz At 2000MHz From 5MHz to 2500MHz From 5MHz to 900MHz From 900MHz to 2500MHz, At 100MHz At 1000MHz At 1000MHz At 100MHz At 1000MHz At 2000MHz T=25 C, VDD =9V, 50 System, PIN =10dBm At 100MHz At 1000MHz From 5MHz to 900MHz, From 900MHz to 2500MHz, At 100MHz At 1000MHz At 1000MHz At 100MHz At 1000MHz At 2000MHz
Overall (50)
Frequency Range Input VSWR MHz
Output VSWR Gain Gain Flatness Noise Figure Output IP3 Output IP2 Output P1dB
Reverse Isolation
1.3:1 15 16 +/-1 1.8 2.6 35 36 39.6 21.5 22.5 18 20
dB dB dB dB dB dBm dBm dBm dBm dBm dBm dB
Gain Noise Figure Output IP3 Output IP2 Output P1dB
16.5 16.7 1.8 2.6 36 36.3 39.8 23 24.7 19.5 6 75 7 85 9 100
dB dB dB dB dBm dBm dBm dBm dBm dBm V mA
Power Supply
Supply Voltage (VDD) Operating Current Range
3-28
Rev A8 010417
Preliminary
Parameter
Overall (75)
Frequency Range Input VSWR 5 to 2500 1.6:1 MHz
RF2320
Specification Min. Typ. Max. Unit Condition
T=25oC, VDD =7V, 75 System, PIN =-8dBm 3dB Bandwidth Appropriate values for the output DC blocking capacitor and bias inductor are required to maintain this VSWR over the intended operating frequency range. See note for input VSWR. At 500MHz 5MHz to 1000MHz At 10MHz, Delta F1 and F2 = 1MHz At 500MHz At 1000MHz At 100MHz, Delta F1 and F2 = 156MHz At 1000MHz At 10MHz At 500MHz At 1000MHz 10dBmV per channel, flat, at the input of the amplifier; VCC =7V, ICC =75mA At 55.25MHz At 331.25MHz At 547.25MHz At 55.25MHz At 331.25MHz At 547.25MHz At 55.25MHz At 331.25MHz At 547.25MHz At 55.25MHz At 331.25MHz At 547.25MHz At 55.25MHz At 331.25MHz At 547.25MHz
Output VSWR Gain Gain Flatness Output IP3
Output IP2 Output IP1dB
1.3:1 15 +1-0.5 34.6 36.1 33.1 49.9 48.5 21 23 22
dB dB dBm dBm dBm dBm dBm dBm dBm dBm
3
LINEAR CATV AMPLIFIERS
110 Channels
XMOD -71 -72 -72 -79 -78 -78 -91 -58 -56 -51 -53 -58 +65 +64 +64 6 75 7 85 9 100 dBc dBc dBc dBc dBc dBc dBc dBc dBc dBc dBc dBc dB dB dB V mA
CTB
CSO+1.25MHz
CSO-1.25MHz
CNR
Power Supply
Supply Voltage (VDD) Operating Current Range
Rev A8 010417
3-29
RF2320
Pin 1 2 3 4 5 6 Function NC NC GND GND GND RF IN Description
No connection. This pin should be connected to the ground plane. Same as pin 1. Ground connection. Keep traces physically short and connect immediately 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 raised externally to increase the bias level. This will increase the current drain 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 blocking capacitor, suitable for the frequency of operation, should be used in most applications. For biasing, only an RF choke is needed.
Preliminary
Interface Schematic
3
LINEAR CATV AMPLIFIERS
7 8 9 10 11 12 13 14
NC NC NC NC NC GND GND RF OUT
RF OUT
RF IN
15 16
NC NC
Same as pin 1. Same as pin 1.
3-30
Rev A8 010417
Preliminary
Application Schematic 1930-1990MHz Narrowband Operation
VDD 1 nF 1 2 3 4 5 1.8 nH 22 pF 6 150 1.5 pF 7 8 11 10 9 16 15 14 22 pF 13 12 22 pF
RF2320
3
100 4.7 nH
Application Schematic 869-894MHz Narrowband Operation
VDD 1 2 3 4 5 8.2 nH 100 pF 6 2 pF 7 8 11 10 9 16 15 3 pF 14 100 pF 13 12 100 pF
8.2 nH
Rev A8 010417
3-31
LINEAR CATV AMPLIFIERS
RF2320
Evaluation Board Schematic - 50
(Download Bill of Materials from www.rfmd.com.)
P1 P1-1 1 2 3 VDD GND GND 1 2 3 4 16 15 14 13 12 11 10 9
Drawing 2320400 Rev 1
Preliminary
VDD C1 10 nF L2 1 uH C2 10 nF
3
LINEAR CATV AMPLIFIERS
L1 4.7 nH
J2 OUT
5 6 7 8
J1 IN
Evaluation Board Schematic - 75
P1 1 2 P1-3 3 P1-3 GND GND VDD 2 3 4 L1 10 nH C1 1.5 pF L2 390 nH 5 6 7 8 15 14 13 12 11 10 9
Drawing 2320401 Rev -
1
16 L3 390 nH C2 10 nF R4 10 C4 1 nF C3 0.5 pF
J2 OUT
J1 IN
NOTES: J1 and J2 are 75 F connectors.
3-32
Rev A8 010417
Preliminary
Evaluation Board Layout - 50 Board Size 1.5" x 1.5"
Board Thickness 0.031", Board Material FR-4
RF2320
3
LINEAR CATV AMPLIFIERS
Evaluation Board Layout - 75
Board Thickness 0.062", Board Material FR-4
Rev A8 010417
3-33
RF2320
50.0
Preliminary
Gain, OIP3, and OIP2 versus Temperature VDD-9V, Pin = -8dBm, Freq = 1000MHz
Gain, OIP3, and OIP2 versus Frequency VDD-9V, Temp = 25C, Pin = -8dB
17.0
42.0
17.0 16.9
16.5 45.0
41.0 16.8 16.7
OIP3, OIP2 (dBm)
Gain (dB)
15.5 35.0 15.0 IP3 30.0 IP2 Gain 14.5
39.0
16.5 16.4
3
LINEAR CATV AMPLIFIERS
38.0 16.3 IP3 IP2 37.0 Gain 16.1 16.2
25.0 0.0 500.0 1000.0 1500.0
14.0 2000.0
36.0 -60.0
-40.0
-20.0
0.0
20.0
40.0
60.0
80.0
16.0 100.0
Frequency (MHz)
Temperature (C)
42.0
Gain, OIP3, and OIP2 versus Pin VDD-9V, Temp = 25C, Freq = 1000MHz
17.0 16.9
3.5
Noise Figure versus Frequency Across Temperature (VCC=7.0V)
-40degC
40.0 16.8 38.0 16.7 16.6 16.5 34.0 16.4 16.3 16.2
3.0
+25degC +85degC
2.5
OIP3, OIP2 (dBm)
36.0
Noise Figure (dB)
Gain (dB)
2.0
1.5
32.0
IP3 IP2
1.0
30.0
Gain 16.1
0.5
28.0 -10.0
16.0 -8.0 -6.0 -4.0 -2.0 0.0 2.0 4.0 6.0 8.0
0.0 0.0 200.0 400.0 600.0 800.0 1000.0 1200.0 1400.0 1600.0
Pin (dBm)
Frequency (MHz)
3.5
Noise Figure versus Frequency Across Temperature (VCC=9.0V)
-40degC
3.0
+25degC +85degC
2.5
Noise Figure (dB)
2.0
1.5
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
Gain (dB)
40.0
OIP3, OIP2 (dBm)
16.0
40.0 16.6
Preliminary
RF2320
50 Ohm, 8V - Return Loss
1.0
0.6
Swp Max 3000MHz
2.0
0.8
10.0
0.2
0.4
0.6
0.8
1.0
2.0
3.0
4.0
5.0
S[2,2]
S[1,1]
-10.0
.4 -0
-0.
6
.0 -2
Swp Min 0.03MHz
-0.8
Rev A8 010417
-1.0
-5.0
-0.2
3-35
LINEAR CATV AMPLIFIERS
0
-4.
0
-3 .0
0. 4
3.0
4.0
5 .0
3
0 .2
10.0
RF2320
75 Ohm, 8V - Return Loss
1.0
Preliminary
0.6
Swp Max 3000MHz
2.0
0.8
LINEAR CATV AMPLIFIERS
S[2,2]
-10.0
10.0
0.2
0.4
0.6
0.8
1.0
2.0
3.0
4.0
5.0
0
.4 -0
-0 . 6
.0 -2
Swp Min 1MHz
-0.8
3-36
-1.0
-5.0
-0.2
-4 . 0
-3 .0
0.2
3
0. 4
3.0
4.0
5 .0
10.0
S[1,1]
Rev A8 010417

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