RF2365 4 3V LOW NOISE AMPLIFIER Typical Applications • DCS GSM • 2.4GHz Systems • PCS CDMA • General Purpose Amplification • PCS TDMA • Commercial and Consumer Systems Product Description 4 0.15 0.05 GENERAL PURPOSE AMPLIFIERS The RF2365 is a low noise amplifier with a high dynamic range designed for the receive front end of digital cellular applications at PCS/DCS frequencies. It is designed to amplify low level signals with minimum noise contribution while operating in the harsh, interference-rich environments of newly deployed digital subscriber units. The part provides excellent performance as a LNA for 2.4GHz radio applications. The IC is featured in a standard SOT5-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 • 1.6dB Noise Figure @ 1850MHz • 1.75dB Noise Figure @ 2450MHz • 18.0dB Gain at PCS/DCS RF IN 1 GND1 2 PD 3 5 RF OUT • 15.5dB Gain at 2.45GHz • External Bias Control • Extremely Small SOT23-5 Package 4 GND2 Ordering Information RF2365 RF2365 PCBA Functional Block Diagram Rev A4 001201 3V Low Noise 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 4-215 RF2365 Absolute Maximum Ratings Parameter Supply Voltage Input RF Level Operating Ambient Temperature Storage Temperature Parameter Rating Unit -0.5 to +8.0 +10 -40 to +85 -40 to +150 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 1500 MHz Condition RF Frequency Range GENERAL PURPOSE AMPLIFIERS Overall 4 PCS Performance Gain 16 Noise Figure Off Mode Gain |S12| Input IP3 Output IP3 20.0 Input VSWR Output VSWR 2500 18 20 dB 1.6 -15 25 -3.5 dB dB dB dBm +2.0 dBm +4.0 dBm 22.0 28.0 dBm Gain Noise Figure Input IP3 Input VSWR Output VSWR 15.5 1.75 +2.0 1.3 1.75 dB dB dBm 3 8.0 6.5 5.0 V mA mA mA µA Power Supply Power Down 4-216 VCC =3.0V, VPD =0 VCC =3.0V, ICC =5.0mA, R1 =150 Ω (see application schematic) VCC =3.0V, ICC =6.5mA, R1 =75Ω (see application schematic) VCC =3.0V, ICC =8.0mA, R1 =0 Ω (see application schematic) VCC =3.0V, ICC =8.0mA, R1 =0 Ω (see application schematic) 1.7 1.4 2.4GHz Performance Voltage (VCC) Current Consumption Schematic per 1.9GHz LNA Application Schematic, VPD = 3.0 VCC = 3.0V, T=25°C VCC =3.0V, ICC =8.0mA Schematic per 2.4GHz LNA Application Schematic T=25°C VCC =3.0V, ICC =8.0mA VCC =3.0V, ICC =8.0mA T = 25 °C 5.0 0 11.0 1 VCC =3.0V, IIP3=+4.0dBm VCC =3.0V, IIP3=+2.0dBm VCC =3.0V, IIP3=-3.5dBm VCC =3.0V; VPD ≤0.9V Rev A4 001201 RF2365 Pin 1 Function RF IN Description Interface Schematic RF input pin. This pin is DC coupled. PD To Bias Circuit RF IN GND1 GND1 PD 4 5 GND2 RF OUT Power down pin. This pin serves as the interstage for the 2-stage LNA. An inductor is required to pull pin 3 to VCC (see application schematic). If desired, this voltage can be lowered to trade off IP3 versus ICC,TOTAL. (See table below.) To RF Stages 4 Ground connection. See evaluation board schematic notes. 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. R1 IIP3 0Ω 75Ω 150Ω +4.0dBm +2.0dBm -3.5dBm Rev A4 001201 PD GENERAL PURPOSE AMPLIFIERS 2 3 Ground connection. See evaluation board schematic notes. To Bias Circuit GND2 ICC 8.0mA 6.5mA 5.0mA 4-217 RF2365 Application Schematic - 1.9GHz 47 pF VCC 3.9 nH RF IN 1 5 RF OUT 22 nF 1 pF 4 GENERAL PURPOSE AMPLIFIERS 2 0Ω 3.3 nH EN 3 4 47 pF Application Schematic - 2.4GHz NOTES: * R1 is left open. 22 pF VCC 3.9 nH RF IN 1 5 22 nF RF OUT 1.5 pF 2 2.2 nH EN 3 4 22 pF R1* 4-218 Rev A4 001201 RF2365 Evaluation Board Schematic - 1.9GHz (Download Bill of Materials from www.rfmd.com.) P2 P1 P 1 -2 1 GND 2 VCC P 2 -2 1 GND 2 EN C2 47 pF C3 10 nF VCC C1 22 nF 1 L2 3 .9 n H 5 0 Ω µstrip 5 C4 1 pF * 2 4 L1 3 .3 n H R1 0Ω EN 3 C6 10 nF J2 RF OUT GENERAL PURPOSE AMPLIFIERS 5 0 Ω µstrip J1 R F IN 2365400, Rev A * 4 C5 47 pF NOTES: *G ro u n d tra ce s o n p in s 2 a n d 4 a re e q u iva le n t to a 1 .8 n H in d u cto r. If a n in d u cto r is n o t u se d , th e d im e n sio n s a re a s fo llo w s: L e n g th = 1 4 0 m ils W id th = 2 0 m ils H e ig h t = 3 1 m ils fro m th e g o u n d p la n e . D ie le ctric is F R -4 . Evaluation Board Schematic - 2.4GHz P2 P1 P 1-2 1 GND 2 VCC P 2-2 1 GND 2 EN C2 22 pF C3 10 nF VCC 50 Ω µstrip J1 R F IN 2 36 54 01 , R e v - C1 22 nF 1 L2 3.9 nH 50 Ω µstrip 5 C4 1.5 pF ** J2 RF O UT 2 L1 2.2 nH EN 3 C6 10 nF C5 22 pF 4 R 1* N OTES: * R 1 is left o p en . **G ro u nd trace o n p in 2 is e qu iva le nt to a 1.0 n H in d ucto r. If a n in du ctor is n ot u se d, th e dim e nsio ns a re a s fo llo w s: L en g th = 8 5 m ils W idth = 2 0 m ils H eig ht = 3 1 m ils from th e go u nd p la n e. D ie le ctric is F R -4 . Rev A4 001201 4-219 RF2365 Evaluation Board Layout Board Size 1” x 1” 1.9GHz Board Thickness 0.031”; Board Material FR-4 GENERAL PURPOSE AMPLIFIERS 4 2.4GHz 4-220 Rev A4 001201 RF2365 Gain versus Frequency and VCC (Temp = +25°C, RF IN = -36 dBm) 18.80 18.60 19.20 Gain versus Frequency and Temp (VCC = 2.8 V, RF IN = -35 dBm) Gain, 2.8V 19.00 Gain, -40°C Gain, 3.0V 18.80 Gain, +25°C Gain, 3.2V 18.60 Gain, +85°C 18.40 18.40 18.20 18.20 Gain (dB) 17.80 17.60 17.80 17.60 17.40 17.20 17.00 17.40 4 16.80 17.20 16.60 16.40 17.00 16.20 16.80 16.00 1805.00 1823.75 1842.50 1861.25 1880.00 1805.00 1823.75 -2.20 -2.40 -2.60 -2.80 -3.00 -3.20 -3.40 -3.60 -3.80 -4.00 -4.20 -4.40 -4.60 -4.80 -5.00 -5.20 -5.40 -5.60 -5.80 -6.00 -6.20 -6.40 -6.60 -6.80 -7.00 -7.20 Input P1dB versus Frequency and VCC (Temp = +25°C) IP1dB, 2.8V IP1dB, 3.0V IP1dB, 3.2V 1805.00 1823.75 1842.50 7.00 1861.25 1880.00 -2.80 -3.00 -3.20 -3.40 -3.60 -3.80 -4.00 -4.20 -4.40 -4.60 -4.80 -5.00 -5.20 -5.40 -5.60 -5.80 -6.00 -6.20 -6.40 -6.60 -6.80 -7.00 -7.20 -7.40 -7.60 -7.80 -8.00 1805.00 IIP3 versus Frequency and VCC (Temp = +25°C) IIP3, 2.8V IIP3, 3.2V 6.00 5.50 IIP3 (dBm) IIP3 (dBm) 5.00 4.50 4.00 3.50 3.00 2.50 2.00 1.50 1.00 0.50 1805.00 1823.75 1842.50 Frequency (MHz) Rev A4 001201 1880.00 IP1dB, -40°C IP1dB, +25°C IP1dB, +85°C 1823.75 1842.50 1861.25 1880.00 Frequency (MHz) IIP3, 3.0V 6.50 1861.25 Input P1dB versus Frequency and Temp (VCC = 2.8 V) Frequency (MHz) 7.50 1842.50 Frequency (MHz) Input P1dB (dBm) Input P1dB (dBm) Frequency (MHz) 1861.25 1880.00 6.00 5.50 5.00 4.50 4.00 3.50 3.00 2.50 2.00 1.50 1.00 0.50 0.00 -0.50 -1.00 -1.50 -2.00 -2.50 -3.00 -3.50 -4.00 -4.50 1805.00 IIP3 versus Frequency and Temp (VCC = 2.8 V) IIP3, -40°C IIP3, +25°C IIP3, +85°C 1823.75 1842.50 1861.25 1880.00 Frequency (MHz) 4-221 GENERAL PURPOSE AMPLIFIERS Gain (dB) 18.00 18.00 RF2365 ICC versus VCC and Temp 10.00 Noise Figure versus Frequency and VCC (Temp = Ambient) 1.34 10.50 NF, 2.8V Icc, -40°C NF, 3.0V Icc, +25°C 9.50 1.33 Icc, +85°C NF, 3.2V 9.00 8.00 7.50 7.00 6.50 4 1.32 Noise Figure (dB) ICC (mA) 8.50 1.31 1.30 6.00 1.29 GENERAL PURPOSE AMPLIFIERS 5.50 5.00 4.50 1.28 2.80 3.00 1805.00 3.20 1823.75 1842.50 1861.25 1880.00 Frequency (MHz) VCC Swp Max 3.5GHz 2. 0 0.6 0.8 1.0 Input/Output Impedance @ 2.8 V 4 0. 3.0 4.0 5.0 0.2 10.0 5.0 4.0 3.0 2.0 1.0 0.8 0.6 0.4 0 0.2 10.0 S[2,2] S[1,1] -10.0 -0.2 -5.0 0 -4. .0 -3 .4 4-222 -1.0 -0.8 -0. 6 .0 -2 -0 Swp Min 0.1GHz Rev A4 001201