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| NJG1507R SPDT SWITCH GaAs MMIC nGENERAL DESCRIPTION NJG1507R is a GaAs SPDT switch IC which exhibits low loss and high isolation, and ideally suitable for T/R switch of the digital wireless phone. This switch is operated in the wide frequency range from 50MHz to 3.0GHz at low operating voltage from +2.5V with small VSP8 package. nPACKAGE OUTLINE NJG1507R nFEATURES lSingle and low positive supply voltage lLow insertion loss lTransmission power lHigh isolation lLow control current lPackage nPIN CONFIGURATION R TYPE (Top View) 1 2 3 4 +2.5~+5.5V 0.5dB typ. @ f=2GHz, Pin=22dBm 27dBm max. @ f=2GHz, VCTL=3.0V 33dB typ. @ f=2GHz, Pin=22dBm 5uA typ. @ f=0.05~2.5GHz, Pin=22dBm VSP8 (Mount Size: 4.0x2.9x1.2mm) Pin Connection 1.VCTR2 8 7 6 5 2.P2 3.GND 4.GND 5.PC 6.GND 7.P1 8.VCTR1 nTRUTH TABLE "H"=VCTR (H), "L"=VCTR (L) VCTR1 VCTR2 P1-PC P2-PC H L OFF ON L H ON OFF L L Loss =15dB P1 Return Loss =-3dB Loss =15dB P2 Return Loss =-3dB H H Loss =16dB P1 Return Loss =-2dB Loss =16dB P2 Return Loss =-2dB Note) The values of "Loss" and "Return Loss" are typical values at 2.0GHz. -1- NJG1507R nABSOLUTE MAXIMUM RATINGS (Ta=25C, Zs=Zl=50) PARAMETER Input power Control voltage Power dissipation Operating Temp. Storage Temp. SYMBOL Pin VCTR PD Topr Tstg RATINGS 33 6.0 320 -30~+85 -40~+150 UNITS dBm V mW C C nELECTRICAL CHARACTERISTICS (VCTR (L)=0V, VCTR (H)=2.7V, Zs=Zo=50, Ta=25C) PARAMETER Control voltage (L) Control voltage (H) Control current Insertion loss1 Insertion loss2 Isolation 1 (PC-P1, PC-P2, P1-P2) SYMBOL VCTR (L) VCTR (H) ICTR LOSS1 LOSS2 ISL1 ISL2 P-1dB (1) P-1dB (2) VSWR TSW CONDITIONS f=0.05~2.5GHz, Pin=22dBm f=0.05~2.5GHz, Pin=22dBm f=0.05~2.5GHz, Pin=22dBm f=1.0GHz, Pin=22dBm f=2.0GHz, Pin=22dBm f=1.0GHz, Pin=22dBm f=2.0GHz, Pin=22dBm f=2.0GHz VCTR (H)=3.0V, f=2.0GHz f=0.05~2.5GHz, ON STATE f=0.05~2.5GHz MIN -0.2 2.5 25 25 26 27 - TYP 0 2.7 5.0 0.4 0.5 31 33 28 30 1.2 15 MAX 0.2 5.5 8.0 0.7 0.8 1.5 - UNITS V V uA dB dB dB dB dBm dBm Isolation 2 (PC-P1, PC-P2, P1-P2) Pin at 1dB compression point 1 Pin at 1dB compression point 2 VSWR Switching time ns -2- NJG1507R nTYPICAL CHARACTERISTICS -3- NJG1507R nTYPICAL CHARACTERISTICS -4- NJG1507R nTYPICAL CHARACTERISTICS -5- NJG1507R nTYPICAL CHARACTERISTICS -6- NJG1507R nTYPICAL CHARACTERISTICS -7- NJG1507R nTYPICAL CHARACTERISTICS -8- NJG1507R nTYPICAL CHARACTERISTICS MARKER 1 2 3 4 5 f(MHz) 50 800 1500 2000 3000 Mag. 0.952 0.780 0.740 0.726 0.698 Ang. (o) -15.9 -171.0 117.0 75.8 1.2 MARKER 1 2 3 4 5 f(MHz) 50 800 1500 2000 3000 Mag. 0.952 0.780 0.740 0.726 0.698 Ang. (o) -15.9 -171.0 117.0 75.8 1.2 -9- NJG1507R nTYPICAL CHARACTERISTICS Scattering Parameters: S11 (OFF STATE) (VCTR=0/2.7V, 50System) - 10 - NJG1507R nAPPLICATION CIRCUIT 1: Single control signal operation by using C-MOS inverter. [1]Please connect bypass capacitors to the supply terminals of the C-MOS inverter. [2]In order to stabilize input impedance of inverter, please pull down using 510K resister from the input terminal of the C-MOS inverter to the ground plane. nAPPLICATION CIRCUIT 2: Single control signal operation by using a transistor. - 11 - NJG1507R nTEST CIRCUIT nRECOMMENDED PCB DESIGN (TOP VIEW) PC PCB SIZE=19.5x14.0mm PCB: FR-4, t=0.2mm CAPACITOR: size 1005 STRIPLINE WIDTH=0.5mm C1 u R1 P1 C2 NJG1507R C1~C3: 56pF C3 1 P2 C4, C5: 10pF R1: 510K u: Please short between Pin4 and ground plane directly as close as possible. C4 C5 V CTR1 V CTR2 Precautions [1]External capacitors should be connected to the input and output RF terminals (P1, P2, PC) to block the DC current. The above example is a circuit at 1.9GHz. Please select the capacitor value suitable for actual frequency from 10pF to 1000pF. [2]Decoupling capacitors should be connected to the control terminals (VCTR1, VCTR2) as close as possible. The values of these capacitors should be selected from 5pF to 100pF range. Please consider that these values are very effective to switching time (Larger capacitor gives longer switching time). [3]In order to keep good isolation characteristics, the ground terminals (3, 4, 6pin) should be connected to the ground pattern with wider width as close as possible, and through-hole in the ground plane should also be placed as close as possible. - 12 - NJG1507R nPACKAGE OUTLINE (VSP8) Lead material Lead surface finish Molding material UNIT Weight : Copper : Solder plating : Epoxy resin : mm : 22mg Cautions on using this product This product contains Gallium-Arsenide (GaAs) which is a harmful material. * Do NOT eat or put into mouth. * Do NOT dispose in fire or break up this product. * Do NOT chemically make gas or powder with this product. * To waste this product, please obey the relating law of your country. [CAUTION] The specifications on this databook are only given for information , without any guarantee as regards either mistakes or omissions. The application circuits in this databook are described only to show representative usages of the product and not intended for the guarantee or permission of any right including the industrial rights. This product may be damaged with electric static discharge (ESD) or spike voltage. Please handle with care to avoid these damages. - 13 - |
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