RF2320 Preliminary 3 LINEAR GENERAL PURPOSE AMPLIFIER Typical Applications • CATV Distribution Amplifiers • Laser Diode Driver • Cable Modems • Return Channel Amplifier • Broadband Gain Blocks • Base Stations Product Description -A- 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 0.5dB 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 75Ω input and output impedances providing 2:1 VSWR matching. For higher input and output return losses, see the evaluation schematic. Optimum Technology Matching® Applied Si BJT GaAs HBT Si Bi-CMOS SiGe HBT LINEAR CATV AMPLIFIERS 3 ü 0.009 0.004 0.158 0.150 0.021 0.014 0.069 0.064 0.392 0.386 0.244 0.230 0.050 0.060 0.054 8° MAX 0° MIN 0.035 0.016 0.010 0.008 Package Style: Standard Batwing GaAs MESFET Si CMOS Features • 5MHz to 2500MHz Operation NC 1 16 NC • Internally Matched Input and Output NC 2 15 NC • 16dB Small Signal Gain GND 3 14 RF OUT GND 4 13 GND GND 5 12 GND • 1.6dB Noise Figure • +22dBm Output Power • Single 6V to 9V Positive Power Supply RF IN 6 11 NC NC 7 10 NC NC 8 9 NC Functional Block Diagram Rev A8 010417 Ordering Information RF2320 RF2320 PCBA Linear General Purpose Amplifier Fully Assembled Evaluation Board RF Micro Devices, Inc. 7625 Thorndike Road Greensboro, NC 27409, USA Tel (336) 664 1233 Fax (336) 664 0454 http://www.rfmd.com 3-27 RF2320 Preliminary Absolute Maximum Ratings Parameter Device Current Device Voltage Input RF Power Output Load VSWR Ambient Operating Temperature Storage Temperature 3 LINEAR CATV AMPLIFIERS Parameter Rating Unit 175 9 +10 20:1 -40 to +85 -40 to +150 mA V dBm °C °C Specification Min. Typ. Max. 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). Unit Overall (50Ω) Frequency Range Input VSWR 5 to 2500 2:1 Output VSWR Gain MHz 1.3:1 15 16 +/-1 1.8 2.6 35 36 39.6 21.5 22.5 18 20 Gain Flatness Noise Figure Output IP3 Output IP2 Output P1dB Reverse Isolation Gain dB dB dB dB dB dBm dBm dBm dBm dBm dBm dB 16.5 16.7 1.8 2.6 36 36.3 39.8 23 24.7 19.5 Noise Figure Output IP3 Output IP2 Output P1dB dB dB dB dB dBm dBm dBm dBm dBm dBm Condition T=25 °C, VDD =7V, 50Ω 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, 50Ω 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 Power Supply Supply Voltage (VDD) Operating Current Range 3-28 6 75 7 85 9 100 V mA Rev A8 010417 RF2320 Parameter Specification Min. Typ. Max. Unit Overall (75Ω) Frequency Range Input VSWR 5 to 2500 1.6:1 Output VSWR Gain Gain Flatness Output IP3 Output IP2 Output IP1dB MHz 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 -71 -72 -72 -79 -78 -78 -91 -58 -56 -51 -53 -58 +65 +64 +64 dBc dBc dBc dBc dBc dBc dBc dBc dBc dBc dBc dBc dB dB dB 110 Channels XMOD CTB CSO+1.25MHz CSO-1.25MHz CNR Condition T=25oC, VDD =7V, 75Ω 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 Power Supply Supply Voltage (VDD) Operating Current Range Rev A8 010417 6 75 7 85 9 100 V mA 3-29 3 LINEAR CATV AMPLIFIERS Preliminary RF2320 LINEAR CATV AMPLIFIERS 3 Pin 1 2 3 Function NC NC GND 4 5 6 GND GND RF IN 7 8 9 10 11 12 13 14 NC NC NC NC NC GND GND RF OUT Preliminary Description Interface Schematic 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. RF OUT RF IN 15 16 3-30 NC NC Same as pin 1. Same as pin 1. Rev A8 010417 RF2320 Preliminary Application Schematic 1930-1990MHz Narrowband Operation VDD 1 nF 16 2 15 3 14 4 13 5 12 6 11 7 10 8 9 22 pF 3 100 4.7 nH LINEAR CATV AMPLIFIERS 1 22 pF 1.8 nH 22 pF 150 1.5 pF Application Schematic 869-894MHz Narrowband Operation VDD 1 16 2 15 100 pF 3 pF 3 14 4 13 5 12 6 11 7 10 8 9 8.2 nH 100 pF 8.2 nH 100 pF 2 pF Rev A8 010417 3-31 RF2320 Preliminary Evaluation Board Schematic - 50Ω (Download Bill of Materials from www.rfmd.com.) P1 1 P1-1 2 GND 3 GND 3 LINEAR CATV AMPLIFIERS VDD C1 10 nF VDD L1 4.7 nH J1 IN 1 16 2 15 3 14 4 13 5 12 6 11 7 10 8 9 L2 1 uH C2 10 nF J2 OUT Drawing 2320400 Rev 1 Evaluation Board Schematic - 75Ω P1 P1-3 P1-3 1 GND 2 GND 3 VDD L1 10 nH J1 IN C1 1.5 pF L2 390 nH NOTES: J1 and J2 are 75 ΩF connectors. 3-32 1 16 2 15 3 14 4 13 5 12 6 11 7 10 8 9 L3 390 nH C2 10 nF R4 10 Ω C4 1 nF J2 OUT C3 0.5 pF Drawing 2320401 Rev - Rev A8 010417 RF2320 Preliminary Evaluation Board Layout - 50Ω Board Size 1.5” x 1.5” Board Thickness 0.031”, Board Material FR-4 LINEAR CATV AMPLIFIERS 3 Evaluation Board Layout - 75Ω Board Thickness 0.062”, Board Material FR-4 Rev A8 010417 3-33 RF2320 Preliminary Gain, OIP3, and OIP2 versus Frequency VDD-9V, Temp = 25°C, Pin = -8dB 50.0 17.0 42.0 16.5 41.0 Gain, OIP3, and OIP2 versus Temperature VDD-9V, Pin = -8dBm, Freq = 1000MHz 17.0 16.9 45.0 16.8 35.0 15.0 40.0 16.6 39.0 16.5 Gain (dB) 15.5 OIP3, OIP2 (dBm) 40.0 Gain (dB) 3 OIP3, OIP2 (dBm) 16.7 16.0 16.4 38.0 16.3 IP3 LINEAR CATV AMPLIFIERS IP3 30.0 IP2 IP2 14.5 37.0 16.2 Gain Gain 16.1 25.0 0.0 500.0 42.0 1000.0 14.0 2000.0 1500.0 36.0 -60.0 -20.0 0.0 20.0 40.0 60.0 80.0 16.0 100.0 Frequency (MHz) Temperature (°C) Gain, OIP3, and OIP2 versus Pin VDD-9V, Temp = 25°C, Freq = 1000MHz Noise Figure versus Frequency Across Temperature (VCC=7.0V) 3.5 17.0 -40degC 16.9 40.0 3.0 +25degC 16.8 38.0 +85degC 2.5 16.6 36.0 16.5 34.0 16.4 32.0 16.3 IP3 IP2 2.0 1.5 1.0 16.2 Gain 30.0 Noise Figure (dB) 16.7 Gain (dB) OIP3, OIP2 (dBm) -40.0 0.5 16.1 28.0 -10.0 16.0 -8.0 -6.0 -4.0 -2.0 0.0 2.0 4.0 6.0 8.0 Pin (dBm) 0.0 0.0 200.0 400.0 600.0 800.0 1000.0 1200.0 1400.0 1600.0 Frequency (MHz) Noise Figure versus Frequency Across Temperature (VCC=9.0V) 3.5 -40degC +25degC 3.0 +85degC Noise Figure (dB) 2.5 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 RF2320 Preliminary Swp Max 3000MHz 2.0 0.6 0.8 1.0 50 Ohm, 8V - Return Loss 0. 4 3.0 4.0 3 5 .0 0 .2 LINEAR CATV AMPLIFIERS 10.0 5.0 4.0 3.0 S[2,2] 2.0 1.0 0.8 0.6 0.4 0 0.2 10.0 S[1,1] -10.0 -0.2 -5.0 -4. 0 -3 .0 Rev A8 010417 -1.0 -0.8 -0. 6 .0 -2 .4 -0 Swp Min 0.03MHz 3-35 RF2320 Preliminary Swp Max 3000MHz 2.0 0.6 0.8 1.0 75 Ohm, 8V - Return Loss 0. 4 3.0 4.0 3 5 .0 0.2 10.0 5.0 4.0 3.0 2.0 1.0 0.8 0.6 0.4 0.2 0 LINEAR CATV AMPLIFIERS 10.0 S[2,2] S[1,1] -10.0 -0.2 -5.0 -4 . 0 -3 .0 3-36 -1.0 -0.8 -0 . 6 .0 -2 .4 -0 Swp Min 1MHz Rev A8 010417