RF2361 4 3V LOW NOISE AMPLIFIER/ 3V PA DRIVER AMPLIFIER Typical Applications • TDMA/CDMA/FM Cellular PCS LNA • General Purpose Amplification • Low Noise Transmit Driver Amplifier • Commercial and Consumer Systems Product Description 4 0.15 0.05 GENERAL PURPOSE AMPLIFIERS The RF2361 is a low noise amplifier with a very high dynamic range designed for digital cellular applications. The device functions as an outstanding front end low noise amplifier or power amplifier driver amplifier in the transmit chain of digital subscriber units where low transmit noise power is a concern. When used as an LNA, the bias current can be set externally. When used as a PA driver, the IC can operate directly from a single cell Li-ion battery and includes a power down feature that can be used to completely turn off the device. The IC is featured in a standard SOT 5-lead plastic package. 1.60 + 0.01 0.400 1 2.90 + 0.10 0.950 2.80 + 0.20 3° MAX 0° MIN 1.44 1.04 Dimensions in mm. 0.127 0.45 + 0.10 Optimum Technology Matching® Applied ! Si BJT Si Bi-CMOS GaAs HBT GaAs MESFET SiGe HBT Si CMOS Package Style: SOT 5-Lead Features • Low Noise and High Intercept Point • Adjustable Bias Current • Power Down Control RF IN 1 GND1 2 VPD 3 5 GND2 • Single 2.5V to 6.0V Power Supply • 150MHz to 2500MHz Operation • Extremely Small SOT 5-Lead Package 4 RF OUT Ordering Information RF2361 3V Low Noise Amplifier/ 3V PA Driver Amplifier RF2361 PCBA-D Fully Assembled Evaluation Board (Driver) RF2361 PCBA-L Fully Assembled Evaluation Board (LNA) Functional Block Diagram Rev A7 001201 RF Micro Devices, Inc. 7625 Thorndike Road Greensboro, NC 27409, USA Tel (336) 664 1233 Fax (336) 664 0454 http://www.rfmd.com 4-183 RF2361 Absolute Maximum Ratings Parameter Supply Voltage, VCC Power Down Voltage, VPD Input RF Level Operating Ambient Temperature Storage Temperature Parameter GENERAL PURPOSE AMPLIFIERS 4 Rating Unit -0.5 to +8.0 <VCC +10 -40 to +85 -40 to +150 VDC VDC 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). Specification Min. Typ. Max. Unit 150 to 2500 MHz Condition Overall RF Frequency Range Low Noise Amplifier 881MHz Performance Gain 19.5 19.5 Noise Figure Input IP3 20 20 1.4 1.4 +6.0 +5.5 1.6 1.6 dB dB dB dB dBm dBm 1.5 1.5 dB dB dB dB dBm dBm Low Noise Amplifier 1950MHz Performance Gain 12.5 12.5 Noise Figure Input IP3 13 13 1.3 1.3 +16.5 +16.0 Driver Amplifier 836MHz Performance Gain Output IP3 19.5 19.5 19.5 25 Noise Figure Reverse Isolation Input VSWR Output VSWR P1dB 4-184 20.5 20.5 20.5 +32.0 +29.0 +27.8 1.9 1.85 1.8 25 25 25 1.8:1 1.25:1 21.5 21.5 21.5 35 2.0 2.0 2.0 Schematic per LNA Application; T=25°C, RF=881MHz, VPD =2.8V, R1=1kΩ VCC =3.0V, ICC =7.6mA VCC =2.7V, ICC =7.5mA VCC =3.0V, ICC =7.6mA VCC =2.7V, ICC =7.5mA VCC =3.0V, ICC =7.6mA VCC =2.7V, ICC =7.5mA Schematic per LNA Application; T=25°C, RF=1950MHz, VPD =2.8V, R1=1kΩ VCC =3.0V, ICC =6.4mA VCC =2.7V, ICC =6.3mA VCC =3.0V, ICC =6.4mA VCC =2.7V, ICC =6.3mA VCC =3.0V, ICC =6.4mA VCC =2.7V, ICC =6.3mA Schematic per Driver Amplifier Application; T=25°C, RF=836MHz, VPD =2.8V dB dB dB dBm dBm dBm dB dB dB dB dB dB VCC =3.5V VCC =3.0V VCC =2.7V VCC =3.5V VCC =3.0V VCC =2.7V VCC =3.5V VCC =3.0V VCC =2.7V VCC =3.5V VCC =3.0V VCC =2.7V Using External LC network used on evaluation board. VCC =3.5V VCC =3.0V VCC =2.7V 2.0:1 2.0:1 13 12 14.4 12.5 dBm dBm 10.5 11.5 dBm Rev A7 001201 RF2361 Specification Min. Typ. Max. Unit 2.5 to 6.0 V Power Supply Voltage (VCC) Voltage (VPD) Current Consumption Driver Amplifier T = 25 °C 2.7 12.5 2.8 21.5 2.9 27 V mA 18 19 20 23 22 29 10 mA mA µA Power Down Driver Amplifier 1880MHz Performance Gain Output IP3 13.0 13.0 13.0 27 Noise Figure Reverse Isolation Input VSWR Output VSWR P1dB 14.0 14.0 14.0 +35.0 +31.0 +28.8 1.85 1.8 1.75 19 19 19 1.6:1 1.6:1 14 13 12 15.6 14.1 13.1 2.7 11.5 2.5 to 6.0 2.8 19.5 16 18 18 20.5 14.5 14.5 14.5 38 2.0 2.0 2.0 Power Down Rev A7 001201 VCC =3.5V; VPD =2.8V; VPD +VCC - Current Consumption from VPD is 2.0mA Typ. @ VPD =2.8V and 3.0mA Max @ VPD =2.9 V VCC =3.5V; VPD =2.7V; VPD + VCC VCC =3.5V; VPD =2.9V; VPD + VCC VCC =3.5V; VPD ≤ 0.9 V Schematic per Driver Amplifier Application; T=25°C, RF=1880MHz, VPD =2.8V dB dB dB dBm dBm dBm dB dB dB dB dB dB VCC =3.5V VCC =3.0V VCC =2.7V VCC =3.5V VCC =3.0V VCC =2.7V VCC =3.5V VCC =3.0V VCC =2.7V VCC =3.5V VCC =3.0V VCC =2.7V dBm dBm dBm Using External LC network used on evaluation board. VCC =3.5V VCC =3.0V VCC =2.7V T = 25 °C 2.0:1 2.0:1 Power Supply Voltage (VCC) Voltage (VPD) Current Consumption Driver Amplifier Condition 2.9 25.5 V V mA 20 27 10 mA mA µA 4 GENERAL PURPOSE AMPLIFIERS Parameter VCC =3.5V; VPD =2.8V; VPD +VCC - Current Consumption from VPD is 2.0mA Typ.@ VPD =2.8V and 3.0mA Max @ VPD =2.9 V VCC =3.5V; VPD =2.7V; VPD + VCC VCC =3.5V; VPD =2.9V; VPD + VCC VCC =3.5V; VPD ≤ 0.9 V 4-185 RF2361 Pin 1 Function RF IN Description Interface Schematic RF input pin. This pin is DC coupled and matched to 50Ω at 836 MHz. To Bias Circuit RF OUT RF IN 2 GND1 3 VPD PD For driver amplifier applications, this is the Power Down pin for the IC. VPD =2.8V +/- 0.1V is required for proper operation. VPD< 0.9V turns off the Part. External RF 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. Nominal current required for VPD =2.8V is 2.0mA typical and 3.0mA Max (@ VPD =2.9V). 4 GENERAL PURPOSE AMPLIFIERS Ground connection. Keep traces physically short and connect immediately to ground plane for best performance. For low noise amplifier applications, this pin is used to control the bias current. See plots for bias current settings. An external resistor (R1) can be used to set the bias current for any VPD voltage. 4 RF OUT 5 GND2 4-186 Amplifier Output pin. This pin is an open-collector output. It must be biased to either VCC or pin 4 through a choke or matching inductor. This pin is typically matched to 50Ω with a shunt bias/matching inductor and series blocking/matching capacitor. Refer to application schematics. Ground connection. Keep traces physically short and connect immediately to ground plane for best performance. Rev A7 001201 RF2361 Application Schematic: Low Noise Amplifier ~881MHz Operation 22 nF J1 RF IN 1 5 2 2 pF 1k Ω VPD 3 10 nF J2 RF OUT 4 100 pF 12 nH 4 100 pF GENERAL PURPOSE AMPLIFIERS VCC 10 nF Application Schematic: Low Noise Amplifier ~1950MHz Operation 22 nF J1 RF IN 1 5 2 1 pF 1k Ω VPD 3 10 nF 100 pF J2 RF OUT 4 3.3 nH VCC 100 pF Rev A7 001201 10 nF 4-187 RF2361 Application Schematic: Driver Amplifier ~836MHz Operation 22 nF J1 RF IN 1 5 2 2 pF 0Ω VPD 3 10 nF 4 J2 RF OUT 4 100 pF 12 nH GENERAL PURPOSE AMPLIFIERS VCC 100 pF 10 nF Application Schematic: Driver Amplifier ~1880MHz Operation 22 nF J1 RF IN 1 5 2 1 pF 0Ω VPD 3 10 nF 100 pF J2 RF OUT 4 3.3 nH VCC 100 pF 4-188 10 nF Rev A7 001201 RF2361 Evaluation Board Schematic: Low Noise Amplifier ~881MHz Operation (Download Bill of Materials from www.rfmd.com.) P1 P1-1 1 VPD 2 GND 3 VCC C7 4.7 µF 4 C3 22 nF 1 5 2 R1 1k Ω 50 Ω µstrip VPD 3 C1 10 nF C4 2 pF 50 Ω µstrip 4 C2 220 pF J2 RF OUT L1 12 nH 2361410 Rev- VCC C5 220 pF C6 10 nF Evaluation Board Schematic: Driver Amplifier ~836MHz Operation P1 P1-1 1 VPD 2 GND 3 VCC C7 4.7 µF J1 RF IN 50 Ω µstrip C3 22 nF 1 5 2 R1 0Ω 50 Ω µstrip VPD 3 C1 10 nF C4 2 pF 50 Ω µstrip 4 C2 220 pF L1 12 nH 2361400 Rev- VCC C5 220 pF Rev A7 001201 J2 RF OUT C6 10 nF 4-189 GENERAL PURPOSE AMPLIFIERS J1 RF IN 50 Ω µstrip RF2361 Evaluation Board Layout - 900MHz Driver Board Size 0.948” x 1.063” Board Thickness 0.031”; Board Material FR-4 GENERAL PURPOSE AMPLIFIERS 4 Evaluation Board Layout - 900MHz LNA 4-190 Rev A7 001201 RF2361 Driver Amp 836 MHz ICC versus VPD 26.0 20.92 2.7V Icc (mA) 3.0V Icc (mA) 3.3V Icc (mA) 3.6V Icc (mA) 25.5 25.0 24.5 20.90 20.88 24.0 Driver Amp 836 MHz Gain versus VPD 2.7V Gain (dB) 3.0V Gain (dB) 3.3V Gain (dB) 3.6V Gain (dB) 20.86 Gain (dB) ICC (mA) 23.5 23.0 22.5 22.0 20.84 20.82 20.80 21.5 20.78 20.5 20.76 4 20.0 20.74 19.5 19.0 20.72 2.7 2.8 2.9 3.0 2.70 2.80 VPD Driver Amp 836 MHz OIP3 versus VPD 33.0 3.00 Driver Amp 836 MHz POUT 1dB versus VPD 15.0 2.7V OIP3 (dBm) 3.0V OIP3 (dBm) 3.3V OIP3 (dBm) 3.6V OIP3 (dBm) 32.0 14.5 2.7V P 1dB (dBm) 3.0V P 1dB (dBm) 3.3V P 1dB (dBm) 3.6V P 1dB (dBm) 14.0 POUT 1dB (dBm) 31.0 OIP3 (dBm) 2.90 VPD 30.0 13.5 13.0 12.5 29.0 12.0 28.0 11.5 27.0 11.0 2.7 2.8 2.9 3.0 VPD 2.05 2.00 2.7 2.8 2.9 3.0 VPD Driver Amp 836 MHz Noise Figure versus VPD 2.7V NF (dB) 3.0V NF (dB) 3.3V NF (dB) 3.6V NF (dB) NF (dB) 1.95 1.90 1.85 1.80 1.75 1.70 2.70 2.80 2.90 3.00 VPD Rev A7 001201 4-191 GENERAL PURPOSE AMPLIFIERS 21.0 RF2361 Low Noise Amplifier 881 MHz Gain versus ICC 19.95 2.7V Gain (dB) 3.0V Gain (dB) 3.3V Gain (dB) 3.6V Gain (dB) 19.90 Low Noise Amplifier 881 MHz OIP3 versus ICC 29.0 2.7V OIP3 (dBm) 3.0V OIP3 (dBm) 3.3V OIP3 (dBm) 3.6V OIP3 (dBm) 28.5 28.0 19.85 27.5 OIP3 (dBm) Gain (dB) 19.80 19.75 19.70 27.0 26.5 26.0 25.5 4 19.65 GENERAL PURPOSE AMPLIFIERS 25.0 19.60 24.5 19.55 6.00 24.0 6.50 7.00 7.50 8.00 8.50 9.00 9.50 10.00 6.0 6.5 7.0 7.5 ICC Low Noise Amplifier 881 MHz IIP3 versus ICC 9.0 8.0 8.5 9.0 9.5 10.0 9.5 10.0 Low Noise Amplifier 881 MHz POUT 1dB versus ICC 13.5 2.7V IIP3 (dBm) 3.0V IIP3 (dBm) 3.3V IIP3 (dBm) 3.6V IIP3 (dBm) 8.5 8.0 ICC (mA) 2.7V Pout 1dB (dBm) 3.0V Pout 1dB (dBm) 3.3V Pout 1dB (dBm) 3.6V Pout 1dB (dBm) 13.0 12.5 POUT 1dB (dBm) IIP3 (dBm) 7.5 7.0 6.5 6.0 12.0 11.5 11.0 5.5 10.5 5.0 10.0 4.5 4.0 9.5 6.0 6.5 7.0 7.5 8.0 8.5 9.0 9.5 10.0 ICC (mA) 6.0 6.5 7.0 7.5 8.0 8.5 9.0 ICC (mA) Low Noise Amplifier 881 MHz Noise Figure versus ICC 1.42 2.7V NF (dB) 3.0V NF (dB) 3.3V NF (dB) 3.6V NF (dB) 1.41 1.40 NF (dB) 1.39 1.38 1.37 1.36 1.35 1.34 1.33 6.00 6.50 7.00 7.50 8.00 8.50 9.00 9.50 10.00 ICC 4-192 Rev A7 001201