RF2321 Preliminary • Broadband Gain Blocks • Driver Stage for Power Amplifiers • Final PA for Low-Power Applications • Oscillator Loop Amplifiers • IF or RF Buffer Amplifiers The RF2321 is a general purpose, low-cost silicon amplifier designed for operation from a 3V supply. The circuit configuration with resistive feedback allows for broadband cascadable amplification. Capacitive compensation extends the bandwidth of the amplifier and input stage design optimizes noise figure. The device is unconditionally stable and internally matched to 50Ω. The only external components required for specified performance are bypass and DC blocking capacitors (as shown in application schematic). The RF2321 is available in a very small industry-standard SOT-23 5-lead surface mount package, enabling compact designs which conserve board space. .071 .059 .004 .000 .020 .014 .122 .106 1 .083 .067 .118 .102 GaAs HBT GaAs MESFET Si Bi-CMOS SiGe HBT Si CMOS .051 .039 .010 .004 .008 MIN Si BJT GENERAL PURPOSE AMPLIFIERS 4 !" # • DC to >2000MHz Operation • 2.7V to 3.3V Single Supply • +3dBm Output IP3 • 12dB Gain at 900MHz • 12dB Gain at 1900MHz GND 1 5 RF OUT • High Isolation (36dB at 900MHz) GND 2 RF IN 3 4 VCC RF2321 RF2321 PCBA Rev A3 000713 3V 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 4-91 RF2321 Preliminary Absolute Maximum Ratings Parameter Supply Voltage Operating Ambient Temperature Storage Temperature Rating Unit 4.0 -40 to +85 -40 to +150 V °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). Parameter GENERAL PURPOSE AMPLIFIERS 4 Min. Specification Typ. Max. Unit T=27 °C, VCC =3.0V Overall Frequency Range DC to >2000 MHz 12 3.6 4 -8 15 11 52 dB dB dBm dBm dB dB dB 12 3.8 4 -8 15 11 42 dB dB dBm dBm dB dB dB 12 3.7 3 -7 13 9 36 dB dB dBm dBm dB dB dB 12 3.7 3 -8 13 9 35 dB dB dBm dBm dB dB dB 12 4.5 2 -8 8 9 25 dB dB dBm dBm dB dB dB 3.0±10% 7.7 V mA T=27 °C, VCC =3.0V 100MHz Performance Gain Noise Figure Output IP3 Output P1dB Input Return Loss Output Return Loss Isolation T=27 °C, VCC =3.0V 500MHz Performance Gain Noise Figure Output IP3 Output P1dB Input Return Loss Output Return Loss Isolation T=27 °C, VCC =3.0V 900MHz Performance Gain Noise Figure Output IP3 Output P1dB Input Return Loss Output Return Loss Isolation T=27 °C, VCC =3.0V 1000MHz Performance Gain Noise Figure Output IP3 Output P1dB Input Return Loss Output Return Loss Isolation T=27 °C, VCC =3.0V 2000MHz Performance Gain Noise Figure Output IP3 Output P1dB Input Return Loss Output Return Loss Isolation Condition Power Supply Operating Voltage Operating Current 4-92 VCC =3.0V Rev A3 000713 RF2321 Preliminary Pin 1 Function GND 2 3 GND RF IN Description Interface Schematic Ground connection. Keep traces physically short and connect immediately to ground plane for best performance. Same as pin 1. RF input pin. This pin is not internally DC blocked and thus requires an external blocking capacitor suitable for the frequency of operation. The input impedance of this pin is internally matched to 50Ω using resistive feedback. VCC RF OUT RF IN 4 VCC 5 RF OUT GENERAL PURPOSE AMPLIFIERS 4 Supply connection. This pin should be bypassed with a suitable capacitor(s). RF output and bias pin. The output impedance of this pin is internally See pin 3 schematic. matched to 50Ω using resistive feedback. Because DC biasing is present on this pin, a DC blocking capacitor should be used in most applications (see application schematic). 1 RF OUT 5 100 pF 2 VCC 100 pF RF IN 3 4 1 nF (Download Bill of Materials from www.rfmd.com.) P1 P1-1 NC 1 VCC 2 GND 3 50 Ω µstrip 1 RF IN J1 50 Ω µstrip C1 100 pF 5 C2 100 pF 2 3 RF OUT J2 P1-1 4 C3 1 nF Rev A3 000713 4-93 RF2321 Preliminary GENERAL PURPOSE AMPLIFIERS 4 4-94 Rev A3 000713 RF2321 Preliminary RF2321 S21, Vcc= 2.7 V RF2321 S12, Vcc = 2.7 V -20 16 Temp = 25°C 14 Temp = 80°C -30 10 S12 (dB) Gain (dB) 12 8 Temp = -40°C -40 6 Temp = 25°C 4 -50 Temp = 80°C 2 Temp = -40°C -60 0 1.1 2.1 3.1 0.1 1.1 Frequency (GHz) 2.1 3.1 Frequency (GHz) RF2321 Output VSWR, Vcc = 2.7 V RF2321 Input VSWR, Vcc = 2.7 V 4 3 Temp = 80°C Temp = 25°C Temp = -40°C 2.5 Temp = -40°C 3 Temp = 25°C VSWR 1.5 2 1 1 0 0.1 1.1 2.1 3.1 0.1 1.1 RF2321 S11, Vcc = 2.7 V, Temp = 25°C Swp Max 3.1GHz 0.8 2. 0 2. 0 0.6 1.0 0.8 3.1 RF2321 S22, Vcc = 2.7 V, Temp= 25°C Swp Max 3.1GHz 0.6 2.1 Frequency (GHz) Frequency (GHz) 1.0 VSWR Temp = 80°C 2 0. 4 0. 4 3.0 3.0 4.0 5.0 0.2 4.0 5.0 0.2 Swp Min 0.1GHz 4.0 5.0 3.0 2.0 .0 -2 -1.0 -0. 6 .4 -0 -0.8 -3 .0 .0 -2 -3 .0 -4. 0 -5.0 -1.0 -0.2 -4. 0 -5.0 -0.8 1.0 -10.0 .4 -0 -10.0 -0.2 -0. 6 0.8 3.1GHz 3.1GHz Rev A3 000713 0.6 0.4 0.2 100MHz 10.0 10.0 0 10.0 4.0 5.0 3.0 2.0 1.0 0.8 0.6 0.4 0.2 0 10.0 100MHz 4 GENERAL PURPOSE AMPLIFIERS 0.1 Swp Min 0.1GHz 4-95 RF2321 Preliminary RF2321 S21, Vcc= 3.0 V RF2321 S12, Vcc = 3.0 V 16 -20 Temp = 25°C 14 Temp = 80°C -30 Temp = -40°C 10 S12 (dB) Gain (dB) 12 8 -40 6 Temp = 25°C 4 -50 Temp = 80°C 2 4 -60 0.1 1.1 2.1 3.1 0.1 1.1 Frequency (GHz) 2.1 3.1 Frequency (GHz) RF2321 Output VSWR, Vcc = 3.0 V RF2321 Input VSWR, Vcc = 3.0 V 4 3 Temp = 80°C Temp = 25°C Temp = -40°C 2.5 Temp = -40°C 3 Temp = 25°C VSWR 2 1.5 2 1 1 0 0.1 1.1 2.1 3.1 0.1 1.1 RF2321 S11, Vcc = 3.0 V, Temp = 25°C Swp Max 3.1GHz 0.8 2. 0 2. 0 0.6 1.0 0.8 3.1 RF2321 S22, Vcc = 3.0 V, Temp= 25°C Swp Max 3.1GHz 0.6 2.1 Frequency (GHz) Frequency (GHz) 1.0 VSWR Temp = 80°C 0. 4 0. 4 3.0 4.0 5.0 3.0 4.0 5.0 0.2 0.2 3.1GHz Swp Min 0.1GHz 4.0 5.0 3.0 2.0 1.0 .0 -2 -1.0 -0. 6 .4 -0 -0.8 -3 .0 .0 -2 -3 .0 -4. 0 -5.0 -1.0 -0.2 -4. 0 -5.0 .4 -0 -0.8 0.8 -10.0 -0.2 -0. 6 0.6 0.4 0.2 0 3.1GHz 100MHz 4-96 10.0 10.0 100MHz 10.0 4.0 5.0 3.0 2.0 1.0 0.8 0.6 0.4 0.2 0 10.0 -10.0 GENERAL PURPOSE AMPLIFIERS Temp = -40°C 0 Swp Min 0.1GHz Rev A3 000713 RF2321 Preliminary RF2321 S21, Vcc= 3.3 V RF2321 S12, Vcc = 3.3 V 16 -20 Temp = 25°C 14 Temp = 80°C -30 Temp = -40°C 10 S12 (dB) Gain (dB) 12 8 -40 6 Temp = 25°C 4 -50 Temp = 80°C 2 Temp = -40°C 0 -60 1.1 2.1 3.1 0.1 1.1 Frequency (GHz) 2.1 3.1 Frequency (GHz) RF2321 Output VSWR, Vcc = 3.3 V RF2321 Input VSWR, Vcc = 3.3 V 4 4 Temp = 80°C Temp = 25°C Temp = -40°C Temp = -40°C 3 Temp = 25°C Temp = 80°C VSWR VSWR 3 2 2 1 1 0 1.1 2.1 3.1 0.1 1.1 RF2321 S11, Vcc = 3.3 V, Temp = 25°C 3.1 RF2321 S22, Vcc = 3.3 V, Temp= 25°C Swp Max 3.1GHz 0.8 2. 0 2. 0 0.6 1.0 Swp Max 3.1GHz 0.6 0.8 2.1 Frequency (GHz) Frequency (GHz) 1.0 0.1 0. 4 0. 4 3.0 3.0 4.0 5.0 0.2 4.0 5.0 0.2 4.0 5.0 3.0 2.0 1.0 0.8 0.6 0.4 0.2 100MHz 10.0 10.0 0 10.0 4.0 5.0 3.0 2.0 1.0 0.8 0.6 0.4 0.2 0 10.0 100MHz 3.1GHz 3.1GHz -10.0 Swp Min 0.1GHz .0 -2 -1.0 -0. 6 .0 -2 -1.0 -0.8 .4 -0 -0.8 -3 .0 -0. 6 -3 .0 -4. 0 -5.0 Rev A3 000713 -0.2 -4. 0 -5.0 .4 -0 -10.0 -0.2 4 GENERAL PURPOSE AMPLIFIERS 0.1 Swp Min 0.1GHz 4-97 RF2321 Preliminary GENERAL PURPOSE AMPLIFIERS 4 4-98 Rev A3 000713