RF2369 Preliminary 4 3V LOW NOISE AMPLIFIER/ 3V PA DRIVER AMPLIFIER Typical Applications • CDMA/Cellular Bypass LNA • General Purpose Amplification • CDMA/Cellular Bypass Driver Amplifier • Commercial and Consumer Systems Product Description 1.80 1.40 TEXT * The RF2369 is a switchable 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. 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 6-lead plastic package. 1.90 0.10 MAX. 0.50 0.35 3.10 2.70 3.00 2.60 1.30 1.00 0.25 0.10 9° 1° GENERAL PURPOSE AMPLIFIERS 4 0.90 0.70 *When Pin 1 is in upper left, text reads downward (as shown). 0.37 MIN. All dimensions in mm. Optimum Technology Matching® Applied ü Si BJT Si Bi-CMOS GaAs HBT GaAs MESFET SiGe HBT Si CMOS Package Style: SOT 6-Lead Features • Low Noise and High Intercept Point • Adjustable Bias Current • LNA Bypass Loss is +2dB VREF/PD 1 GND1 RF IN Logic Control 6 SELECT 2 5 GND2 3 4 RF OUT • 150MHz to 2500MHz Operation • Meets IMD Tests with Two Gain States/ Single Logic Control Line Ordering Information RF2369 RF2369 PCBA Functional Block Diagram Rev A3 010720 3V Low Noise Amplifier/ 3V PA Driver Amplifier Fully Assembled Evaluation Board (LNA) 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 RF2369 Preliminary Absolute Maximum Ratings Parameter Supply Voltage Input RF Level Operating Ambient Temperature Storage Temperature Parameter GENERAL PURPOSE AMPLIFIERS 4 Rating Unit -0.5 to +8.0 +10 -40 to +85 -40 to +150 VDC 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 TAMB =25°C, VCC =3.0V Overall Frequency Range Condition 150 824 to 894 2500 MHz 894 MHz 17.0 2.0 dB dB dBm Cellular Low Noise Amplifier Frequency HIGH GAIN MODE Gain Noise Figure Input IP3 Input VSWR Output VSWR Current Drain BYPASS MODE Gain Input IP3 Input VSWR Output VSWR Current Drain 869 Gain Select<0.8V, VPD/VREF =3V 14.0 9.0 15.5 1.6 11.5 7.5 2:1 2:1 10.0 mA Gain Select>1.8V, VPD/VREF =0V -3 +10 -2 +24 2.0 -1 dB dBm 2:1 2:1 4.0 mA 849 MHz Cellular CDMA Driver Frequency HIGH GAIN MODE Gain Noise Figure Output Power ACPR1 ACPR2 Input VSWR Output VSWR Current Drain BYPASS MODE Gain Input IP3 Input VSWR Output VSWR Current Drain 824 Gain Select<0.8V, VPD/VREF =3V 14.0 15.5 2.0 17.0 2.5 4 -65 -70 dB dB dBm dBc/30kHz dBc/30kHz POUT =+4dBm, +885kHz offset POUT =+4dBm, +1.98MHz offset 2:1 2:1 8.5 mA Gain Select>1.8V, VPD/VREF =0V -3.0 +10 -2.0 +24 2.0 -1.0 dB dBm 2:1 2:1 4.0 mA 0.8 V V Power Supply Voltage (VCC) VSELECT Low 3 VSELECT High 1.8 Power Down 0 4-184 V 10 µA High Gain mode. Select<0.8V, VPD/VREF =3V Low Gain mode. Select>1.8V, VPD/VREF =0V Gain Select<0.8V, VPD/VREF =0V, VCC =0V Rev A3 010720 RF2369 Preliminary Bypass Possibility Gain Select VPD/VREF VCC Current Comments >1.8V >1.8V 0V 3V 3V 3V 2.3mA 3.4mA Recommended Bypass Mode Alternative Bypass Mode GENERAL PURPOSE AMPLIFIERS 4 Rev A3 010720 4-185 RF2369 Pin 1 Function VREF/PD 2 GND1 3 RF IN Preliminary Description VREF/PD Ground connection. For best performance, keep traces physically short and connect immediately to ground plane. RF input pin. 4 GENERAL PURPOSE AMPLIFIERS Interface Schematic For low noise amplifier applications, this pin is used to control the bias current. An external resistor can be used to set the bias current for any VPD voltage. To Bias Circuit RF OUT RF IN 4 RF OUT 5 GND2 6 SELECT 4-186 Amplifier output pin. This pin is an open-collector output. It must be biased to VCC 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. LNA emittance inductance. Total inductance is comprised of package+bondwire+stripline (L1) on PCB. This pin selects high gain and bypass. Select < 0.8V, high gain. Select > 1.8V, low gain. Rev A3 010720 RF2369 Preliminary Application Schematic Cellular Low Noise Amplifier ~881MHz C1 0.1 µF R1 1.6 kΩ VREF/PD 1 Logic Control 6 C2 0.1 µF 2 J1 RF IN 50 Ω µstrip C6 33 nF SELECT L1 1.5 nH 5 C3 3 pF L3 6.8 nH 3 50 Ω µstrip 4 J2 RF OUT VCC C5 10 nF C4 100 pF Application Schematic Cellular Driver Amplifier ~836MHz C1 0.1 µF R1 1.3 kΩ VREF/PD 1 Logic Control 6 C2 0.1 µF J1 RF IN 50 Ω µstrip SELECT L1 1.5 nH 2 C6 33 nF 5 C3 3 pF L3 6.8 nH 3 50 Ω µstrip 4 J2 RF OUT L2 10 nH VCC C5 10 nF Rev A3 010720 4 GENERAL PURPOSE AMPLIFIERS L2 10 nH C4 100 pF 4-187 RF2369 Preliminary Evaluation Board Schematic - Cellular LNA (Download Bill of Materials from www.rfmd.com.) P2 P1 P1-1 P1-3 1 VCC 2 GND 3 NC P2-1 P2-3 CON3 GENERAL PURPOSE AMPLIFIERS 4 1 VREF 2 GND 3 SELECT CON3 C1 0.1 µF R1 1.6 kΩ VREF 1 Logic Control 6 C2 0.1 µF L1 1.5 nH 2 J1 RF IN 50 Ω µstrip C6 33 nF SELECT 5 C3 3 pF L3 6.8 nH 3 4 R2* DNI 4-188 J2 RF OUT L2 10 nH 2366401- NOTE: Components with * following reference designator should not be populated on the evaluation board. 50 Ω µstrip VCC C5 10 nF C4 100 pF Rev A3 010720 RF2369 Preliminary Evaluation Board Layout Board Size 1.0" x 1.0" Board Thickness 0.032”, Board Material FR-4 GENERAL PURPOSE AMPLIFIERS 4 Rev A3 010720 4-189 RF2369 Preliminary High Gain Mode Noise Figure versus VCC, Gain (Bypass Mode) versus VCC Cellular LNA 2.5 Cellular LNA -2.2 -2.3 2.0 Bypass Gain (dB) Noise Figure (dB) -2.4 1.5 1.0 -2.5 -2.6 -2.7 4 0.5 GENERAL PURPOSE AMPLIFIERS NF, -30C NF, +25C NF, +85C TEMP = -30C TEMP = 25C TEMP = 85C -2.8 0.0 -2.9 2.5 2.7 2.9 3.1 3.3 2.5 3.5 2.6 2.7 2.8 2.9 VCC (V) IIP3 (High Gain Mode) versus VCC 3.1 3.2 3.3 3.4 3.5 Gain (High Gain Mode) versus VCC Cellular LNA 14.0 3.0 VCC (V) Cellular LNA 17.0 13.0 16.5 High Gain Gain (dB) High Gain IIP3 (dB) 12.0 11.0 10.0 16.0 15.5 9.0 15.0 TEMP = -30C TEMP = 25C TEMP = 85C 8.0 TEMP=-30C TEMP=25C TEMP=85C 7.0 14.5 2.5 2.6 2.7 2.8 2.9 3.0 3.1 3.2 3.3 3.4 3.5 2.5 2.6 2.7 2.8 2.9 VCC (V) IIP3 (Bypass Mode) versus VCC 3.1 3.2 3.3 3.4 3.5 Total ICC (High Gain Mode) versus VCC Cellular LNA 29.0 3.0 VCC (V) Cellular LNA 11.0 28.0 10.0 27.0 9.0 Total ICC (mA) Bypass IIP3 (dB) 26.0 25.0 24.0 23.0 22.0 8.0 7.0 6.0 21.0 TEMP = -30C TEMP = 25C 20.0 TEMP = -30C 5.0 TEMP = 25C TEMP = 85C TEMP = 85C 19.0 4.0 2.5 2.6 2.7 2.8 2.9 3.0 VCC (V) 4-190 3.1 3.2 3.3 3.4 3.5 2.5 2.6 2.7 2.8 2.9 3.0 3.1 3.2 3.3 3.4 3.5 VCC (V) Rev A3 010720 -1.0 -0.8 Swp Min 0.05GHz -3 .0 .4 -0 10.0 4.0 5.0 3.0 10.0 Swp Min 0.05GHz 4-191 -4. 0 -5.0 GENERAL PURPOSE AMPLIFIERS .0 -2 2.0 1.0 0.8 0.6 0.4 0.2 0 10.0 4.0 5.0 3.0 2.0 1.0 0.8 0.6 0.4 2. 0 0.6 2. 0 0.6 1.0 0.8 1.0 0.8 Bypass -1.0 .0 -2 -0. 6 -0.8 -0. 6 .4 -0 -0.2 -4. 0 -5.0 0.2 Swp Max 6GHz -3 .0 -0.2 -10.0 -10.0 0.2 4.0 5.0 0.2 Rev A3 010720 0. 4 0 3. 0. 4 0 Preliminary RF2369 High Gain Swp Max 6GHz 0 3. 4.0 5.0 10.0 4 RF2369 Preliminary 0.8 Swp Max 6GHz 2.0 2.0 0.6 0.8 0.6 Swp Max 6GHz 1.0 High GainGain Mode S11 S11 High Mode 1.0 Bypass Mode S11 S11 Bypass Mode 0. 4 0. 4 3.0 3.0 4.0 4.0 5.0 5.0 0.2 0.2 4 10.0 5.0 4.0 3.0 2.0 1.0 0.8 0.6 0.4 0.2 0 10.0 5.0 4.0 3.0 2.0 1.0 0.8 0.6 0.4 0 10.0 -0.2 -5.0 -5.0 -4. 0 GENERAL PURPOSE AMPLIFIERS -10.0 -0.2 -10.0 0.2 10.0 -4. 0 -3 .0 -1.0 -0.8 Swp Min 0.05GHz 0.8 0.6 Swp Max 6GHz 2.0 2.0 0.6 Swp Max 6GHz 1.0 High GainGain Mode S22 S22 High Mode 1.0 Bypass Mode S22 S22 Bypass Mode 0.8 .0 -2 - 0. 6 .0 -2 .4 -0 Swp Min 0.05GHz -1.0 -0.8 - 0. 6 -3 .0 .4 -0 0. 4 0. 4 3.0 3.0 4.0 4.0 5.0 5.0 0.2 0.2 10.0 5.0 4.0 3.0 2.0 1.0 0.8 0.6 0.4 0.2 0 10.0 5.0 4.0 3.0 2.0 1.0 0.8 0.6 0.4 0 10.0 -10.0 -0.2 -5.0 -4. 0 -0.2 -10.0 0.2 10.0 -5.0 -4. 0 -1.0 Swp Min 0.05GHz -0.8 - 0. 6 .0 -2 -1.0 -0.8 - 0. 6 .4 -0 .0 -2 -3 .0 4-192 -3 .0 .4 -0 Swp Min 0.05GHz Rev A3 010720