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| STB7003 TRI-BAND GSM/DCS/PCS LNA * SUPPLY VOLTAGE 2.8V * LOW CURRENT CONSUMPTION * VERY LOW NOISE FIGURE: NF=1.5dB @ 950MHz NF=1.9dB @ 1850MHz NF=2dB @ 1950MHz * DIGITAL GAIN CONTROL ORDER CODE STB7003 MSOP10-EP (exposed pad) BRANDING 7003 APPLICATIONS TRI-BAND GSM/DCS/PCS FRONT-ENDS FUNCTIONAL BLOCK DIAGRAM PD GC DESCRIPTION The STB7003 is a tri-band LNA designed for GSM/DCS/ PCS applications. The GC pin sets the LNA gain levels. The innovative architecture implemented allows to reach very low current consumption. LNA1 works at 0.9-1.0 GHz and LNA2 over the 1.8-2GHz frequency range. AI1 LNA1 AO1 BIAS GND VccGSM AI2 LNA2 AO2 BSW VccDCS ABSOLUTE MAXIMUM RATING Symbol Vcc Tj Tstg Supply voltage Junction temperature Storage temperature Parameter Value 4.5 150 -40 to +85 Unit V o C C THERMAL DATA Symbol Rth(j-a) Parameter Thermal resistance junction-ambient Value TBD Unit o C/W January, 22 2002 1/9 STB7003 ELECTRICAL CHARACTERISTICS (Vcc = 2.8V, Tamb= 25 oC) Symbol Vcc IPD Parameter Supply voltage Sleep supply current Test conditions Min. 2.7 Typ. Max. 3.3 5 Unit V uA LNA1 @ 950MHz Icc G NF P1dB IIP3 VSWRi VSWRo Supply current Power gain Noise figure Input 1 dB compr. power Input third order intercept Input VSWR Output VSWR Gp1(1) Gp2(1) Gp1 Gp2 Gp1 Gp2 Gp1(2) Gp2(2) 4.5 -1 16 5.5 1.5 -19 -21 -10.8 -12.6 2:1 2:1 mA dB dB dBm dBm LNA2 @ 1850MHz Icc G NF P1dB IIP3 VSWRi VSWRo Supply current Power gain Noise figure Input 1 dB compr. power Input third order intercept Input VSWR Output VSWR Gp1(1) Gp2(1) Gp1 Gp2 Gp1 Gp2 Gp1(3) Gp2(3) 7.3 -4 14.7 9.6 1.9 -11.5 -13.1 -1.4 -3.5 2:1 2:1 mA dB dB dBm dBm LNA2 @ 1950MHz Icc G NF P1dB IIP3 VSWRi VSWRo Note(1) : Note(2) : Note(3) : Note(4) : Supply current Power gain Noise figure Input 1 dB compr. power Input third order intercept Input VSWR Output VSWR Gp1(1) Gp2(1) Gp1 Gp2 Gp1 Gp2 Gp1(4) Gp2(4) 7.3 -4.5 14.7 9.8 2 -10.8 -12.6 -1.5 -3.7 2:1 2:1 mA dB dB dBm dBm Gp1 min gain, Gp2 max gain. Measured data with two tones f IN1 = 945 MHz, fIN2 = 945.8 MHz, PIN = - 33 dBm for each tone Measured data with two tones f IN1 = 1850 MHz, fIN2 = 1850.8 MHz, P IN = - 33 dBm for each tone Measured data with two tones f IN1 = 1960 MHz, fIN2 = 1960.8 MHz, P IN = - 33 dBm for each tone 2/9 STB7003 GAIN SELECTION BSW 0 0 1 1 GC 0 1 0 1 GSM LNA1 High gain Low gain Off Off DCS/PCS LNA2 Off Off High gain Low gain PINOUT Pin Number 1 2 3 4 5 6 7 8 9 10 Symbol PD AI1 GND AI2 BSW VccDCS AO2 VccGSM AO1 GC Description Power down GSM LNA1 input Ground DCS/PCSl LNA2 input Band switch between GSM and DCS/PCS RF output DCS Supply voltage DCS/PCS LNA2 output GSM/BiAS Supply voltage GSM LNA1 output LNA1/2 gain control 3/9 STB7003 TYPICAL PERFORMANCE (GSM BAND) Power Gain vs. Frequency Noise Figure vs. Frequency 20 15 High Gain 7 6 5 NF (dB) 4 3 Low Gain Low Gain S21(Log Mag) (dB) 10 5 0 -5 800 2 1 920 High Gain 820 840 860 880 900 920 940 960 980 1000 930 940 950 960 970 FREQUENCY (MHz) Frequency (MHz) Input Return Loss vs. Frequency Output Return Loss vs. Frequency 0 -2 RETURN LOSS (dB) 0 -5 -10 -15 -20 -25 800 High Gain -6 -8 -10 Low Gain HIgh Gain RETURN LOSS -4 -12 -14 800 820 840 860 880 900 920 FREQUENCY (MHz) 940 960 980 1000 0 Low Gain 820 840 860 880 900 920 940 960 980 1000 FREQUENCY (MHz) Reverse Isolation vs. Frequency -40 -41 S21(Log Mag) (dB) -42 -43 -44 -45 -46 -47 -48 800 820 840 860 880 900 920 940 FREQUENCY (MHz) 960 980 1000 Low Gain HIgh Gain 4/9 STB7003 TYPICAL PERFORMANCE (DCS / PCS BAND) Power Gain vs. Frequency Noise Figure vs. Frequency 20 High Gain 15 S21(Log Mag) (dB) 10 5 0 -5 Low Gain -10 1800 1820 1840 1860 1880 1900 1920 1940 1960 1980 2000 FREQUENCY (MHz) 11 10 9 8 7 6 5 4 3 2 1 1800 Low Gain NF (dB) High Gain 1850 1900 FREQUENCY (MHz) 1950 2000 Input Return Loss vs. Frequency Output Return Loss vs. Frequency 0 -2 0 RETURN LOSS (dB) -2 -4 -6 -8 High Gain Low Gain RETURN LOSS -4 -6 -8 -10 -12 -14 -16 -18 -20 Low Gain High Gain -10 1800 1820 1840 1860 1880 1900 1920 1940 1960 1980 2000 FREQUENCY (MHz) -12 1800 1820 1840 1860 1880 1900 1920 1940 1960 1980 2000 FREQUENCY (MHz) Reverse Isolation vs. Frequency -35 -36 S12 (Log Mag) (dB) -37 -38 -39 -40 -41 -42 -43 -44 1800 1820 1840 1860 1880 1900 1920 1940 1960 1980 2000 FREQUENCY (MHz) Low Gain High Gain 5/9 STB7003 TEST CIRCUIT SCHEMATIC JP1 VCC S3 SW SPDT C6 10n VCC S1 SW SPDT J1 SMA_in900 L1 AI1 C3 12n 2p2 J2 L2 C4 0.5p SMA in1800 VCC S2 C5 10n C13 33p C10 470p L7 VCC 110n R3 L5 130 4n3 2n7 GND AI2 AO1 VCC AO2 C11 R2 STB7003 0 n/c C12 n/c 4p L6 VCC 1n J4 SMA 2p SMA C2 10n U1 PD GC 5n1 R1 510 L3 C8 100p C9 10n L4 VCC 110n C7 C17 J3 VCC C14 10n C1 4u7 1 2 2 HEADER BSW VCClna SW SPDT 1 2 L8 VCC C15 12p 68n BILL OF MATERIAL Used 1 1 1 2 1 1 1 1 6 1 1 1 1 1 2 1 1 1 1 1 1 6/9 Part Type 12n 2n7 5n1 110n 4n3 1n 68n 1u 10n 2p2 0.5p 4p 100p 470p n/c 33p 12p 2p 510 0 130 Designator L1 L2 L3 L4, L7 L5 L6 L8 C1 C2, C5, C6 C9, C14 C3 C4 C7 C8 C10 C11, C12 C13 C15 C17 R1 R2 R3 0603 0603 0603 0603 0603 0603 0603 0603 0603 0603 0603 0603 MURATA 0603 KIT MURATA 0603 KIT MURATA 0603 KIT MURATA 0603 KIT MURATA 0603 KIT MURATA 0603 KIT MURATA 0603 KIT MURATA 0603 KIT Footprint 0603 0603 0603 0603 0603 0402 0603 TAG A 0603 MURATA 0603 KIT Description COILCRAFT KIT C124-2 COILCRAFT KIT C124-2 COILCRAFT KIT C124-2 COILCRAFT KIT C124-2 COILCRAFT KIT C124-2 COILCRAFT KIT C128 COILCRAFT KIT C124-2 STB7003 EVALUATION BOARD TOP LAYER COMPONENTS PLACEMENT 37mm 27mm PCB CROSS SECTION Top Layer 0.01 inch/0.25mm Internal Layer (Ground Layer) 0.02 inch/0.5mm Layer for mechanical rigidity of PCB Bottom Layer 7/9 STB7003 MECHNANICAL DATA 8/9 STB7003 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) 2002 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 9/9 |
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