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| SMA427A 50 / 50 Low Noise Amplifier PRELIMINARY DATA * CASCADABLE 50 ohm-GAIN BLOCK * UNCONDITIONALLY STABLE * GAIN |S21|2 = 17 dB at 1.8 GHz * IP3out = +7.4 dBm at 1.575 GHz (VD = 3 V, ID = 9.5 mA) * NOISE FIGURE NF = 2.2 dB at 1.8 GHz * TYPICAL DEVICE VOLTAGE VD = 2 V to 5 V * ULTRA MINIATURE SOT323-4L PACKAGE (LEAD FREE) APPLICATIONS LNA FOR 1-2 GHz APPLICATIONS (GPS, Cellular..) SOT323-4L (SC70) ORDER CODE SMA427ATR BRANDING TBD BLOCK DIAGRAM 3 +V DESCRIPTION SMA427A is a product of the SMA Family (Silicon MMIC Amplifiers). Housed in the ultra miniature 4-lead SC-70 (SOT323-4L LEAD FREE) surface mount plastic package, it embeds the state of the art Silicon ST technology. The amplifier application shows excellent RF performance using only two external component in the 1000-2000MHz frequency range. 4 OUT IN 1 2 GND ABSOLUTE MAXIMUM RATINGS Symbol VD ID Ptot PRFin Tamb Tstg Tj Device Voltage Device Current Total dissipation, Ts = 120 C o Parameter Value 6 27 TBD -10 -65 to +150 -65 to +150 150 Unit V mA mW dBm o o o RF Input Power Ambient Temperature Storage temperature Max. operating junction temperature C C C THERMAL RESISTANCE Rthjs Thermal Resistance Junction soldering point TBD o C/W January, 7 2003 1/6 SMA427A ELECTRICAL CHARACTERISTICS (Ta = +25oC, VD = 3V, Zo = 50, tested in circuit shown in Appl.1, unless otherwise specified) Symbol Id |S21|2 Parameter Supply Current Insertion power gain f = 1 GHz f = 1.575 GHz f = 1.8 GHz f = 1 GHz f = 1.575 GHz f = 1.8 GHz f = 1 GHz f = 1.575 GHz f = 1.8 GHz f = 1.575 GHz f = 1 GHz f = 1.575 GHz f = 1.8 GHz f = 1 GHz f = 1.575 GHz f = 1.8 GHz Test Conditions Min. Typ. 9.5 22 18 17 27 25 20 1.8 2 2.2 7.4 >12 >12 >12 >12 >12 >12 Max. Unit mA dB S12 Reverse Isolation dB NF IP3out RLin Noise Figure Intercept point at output Input Return Loss dB dBm dB RLout Output Return Loss dB PIN CONNECTION 4 3 Pin No. 1 Description IN GND +V OUT Top view 1 2 SOT343 SOT343 2 3 4 Typical configuration C2 33p C 1 4 J2 RF OUT C4 47n B Vcc 2 1 Title + C1 1u Size A A4 Date: File: 1 2 23-Jul-2002 Sheet of C:\PROGETTI\SMA DEVICE\SMA 427\SMA 427.ddb Drawn By: 3 4 Number Revision C3 10p SMA 427A J1 RF IN 2 U1 3 2/6 SMA427A S-Parameters 0 -5 -10 -15 -10 -15 -20 -20 S12 S11 -25 -30 -35 -40 Vcc = 5V -25 Vcc = 3V Vcc = 5V Vcc = 3V -30 -35 -45 -50 500 1000 1500 f (M Hz) 2000 2500 -40 500 1000 1500 f (MHz) 2000 2500 30 28 26 0 -5 -10 Vcc = 5V 24 Vcc = 5V 22 20 18 16 14 -35 -20 S22 -25 Vcc = 3V -15 S21 Vcc = 3V -30 12 10 8 500 -40 -45 500 1000 1500 f (M Hz) 2000 2500 1000 1500 f (MHz) 2000 2500 Noise Figure vs. Frequency 3 2.5 Vcc = 3V 2 NF (dB) Vcc = 5V 1.5 1 0.5 0 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 f (MHz) 3/6 SMA427A TAPE & REEL DIMENSIONS mm MIN. A C D N T Ao Bo Ko Po P 3.8 (cumulative 10 Po) 2.25 2.7 1.2 4.0 4.0 4.2 (cumulative 10 Po) 178.5 12.8 20.2 54.5 55 55.5 14.4 TYP. 179 13.0 MAX 179.5 13.5 DEVICE ORIENTATION TOP VIEW END VIEW 427 427 427 427 4/6 SMA427A PACKAGE DIMENSIONS SOT323-4L (SC-70 4 leads) 1.30 1.15-1.35 2.00-2.20 1.15 0.55-0.65 1.90-2.10 1.15-1.35 0.80-1.00 0.45 0.10-0.20 0.25-0.35 0.00-0.10 5/6 SMA427A Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics. The ST logo is registered trademark of STMicroelectronics (R) 2003 STMicroelectronics - All Rights Reserved All other names are the property of their respective owners. STMicroelectronics GROUP OF COMPANIES Australia - Brazil - Canada - China - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan Malaysia - Malta - Morocco - Singapore - Spain - Sweden - Switzerland - United Kingdom - U.S.A. http://www.st.com 6/6 |
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