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| NJG1542HB3 www..com SPDT SWITCH GaAs MMIC n GENERAL DESCRIPTION NJG1542HB3 is a GaAs SPDT switch IC that features small-sized package and low insertion loss , and ideally suited for T/R switch of digital cordless telephone or other digital wireless systems. This switch is operated in the wide frequency range from 100MHz to 2.5GHz at low operating voltage from +2.5V. The ultra small & ultra thin USB8-B3 package is adopted. n FEATURES lLow insertion loss lHigh isolation lPin at 1dB compression point lLow control current lUltra small & ultra thin package n PIN CONFIGURATION USB8-B3 Type (TOP VIEW) 8 1 7 n PACKAGE OUTLINE NJG1542HB3 0.4dB typ. @f=1.0GHz 0.45dB typ. @f=2.0GHz 0.5dB typ. @f=2.5GHz 25dB typ. @f=1.0GHz 20dB typ. @f=2.0GHz 18dB typ. @f=2.5GHz 27dBm typ. @f=2.5GHz 5uA typ. USB8-B3 (Package size: 1.5x1.5x0.75mm) 2 6 3 4 5 Pin connection 1.P1 2.GND 3.P2 4.GND 5.VCTL2 6.PC 7.VCTL1 8.GND n TRUTH TABLE "H"=VCTL (H), "L"=VCTL (L) VCTL1 VCTL2 PC-P1 PC-P2 H L ON OFF L H OFF ON Note: Reversed logic version of this device is NJG1600HB3. -1- NJG1542HB3 www..com n ABSOLUTE MAXIMUM RATINGS PARAMETER RF Input Power Control Voltage Operating Temp. Storage Temp. SYMBOL PIN VCTL Topr Tstg CONDITIONS VCTL=0V/3V VCTL terminal CONDITIONS 29 7.5 -40~+85 -55~+150 UNITS dBm V C C n ELECTRICAL CHARACTERISTICS (General conditions: VCTL (L)=0V, VCTL (H)=3V, ZS=Zl=50, Ta=25C) PARAMETERS SYMBOL CONDITIONS MIN TYP 3.0 5 0.4 0.45 0.5 25 20 18 26 27 1.2 20 MAX 0.2 6.5 10 0.55 0.6 0.65 1.4 100 UNITS V V uA dB dB dB dB dB dB dBm dBm Control Voltage (LOW) Control Voltage (HIGH) Control Current Insertion Loss 1 Insertion Loss 2 Insertion Loss 3 Isolation 1 Isolation 2 Isolation 3 Pin at 1dB Compression Point 1 Pin at 1dB Compression Point 2 VSWR Switching time VCTL (L) VCTL (H) ICTL LOSS1 LOSS2 LOSS3 ISL1 ISL2 ISL2 P-1dB(1) P-1dB(2) VSWR TSW f=2.5GHz, PIN=18dBm f=1.0GHz, PIN=18dBm f=2.0GHz, PIN=18dBm f=2.5GHz, PIN=18dBm f=1.0GHz, PIN=18dBm f=2.0GHz, PIN=18dBm f=2.5GHz, PIN=18dBm f=2.5GHz(V=0V/2.7V) f=2.5GHz f=0.1~2.5GHz, ON state f=0.1~2.5GHz -0.2 2.5 22 17 15 24.5 25 - ns -2- NJG1542HB3 www..com nTERMINAL INFORMATION No. 1 SYMBOL P1 2 GND 3 P2 4 GND 5 VCTL2 6 PC 7 VCTL1 8 GND DESCRIPTION RF port. This port is connected with PC port by controlling 7th pin (VCTL(H)) to 2.5~6.5V and 5th pin(VCTL(L)) to -0.2~+0.2V. An external capacitor is required to block the DC bias voltage of internal circuit. (100MHz: 0.01uF, 0.1~0.5GHz: 1000pF, 0.5~2.5GHz: 56pF) Ground terminal. Please connect this terminal with ground plane as close as possible for excellent RF performance. RF port. This port is connected with PC port by controlling 5th pin (VCTL (H)) to 2.5~6.5V and 7th pin(VCTL(L)) to -0.2~+0.2V. An external capacitor is required to block the DC bias voltage of internal circuit. (100MHz: 0.01uF, 0.1~0.5GHz: 1000pF, 0.5~2.5GHz: 56pF) Ground terminal. Please connect this terminal with ground plane as close as possible for excellent RF performance. Control port 2. The voltage of this port controls PC to P2 state. The `ON' and `OFF' state is toggled by controlling voltage of this terminal such as high-state (2.5~6.5V) or low-state (-0.2~+0.2V). The voltage of 7th pin have to be set to opposite state. The bypass capacitor has to be chosen to reduce switching time delay from 10pF~1000pF range. Common RF port. In order to block the DC bias voltage of internal circuit, an external capacitor is required. (100MHz:0.01uF, 0.1~0.5GHz: 1000pF, 0.5~2.5GHz: 56pF) Control port 1. The voltage of this port controls PC to P1 state. The `ON' and `OFF' state is toggled by controlling voltage of this terminal such as high-state (2.5~6.5V) or low-state (-0.2~+0.2V). The voltage of 5 th pin have to be set to opposite state. The bypass capacitor has to be chosen to reduce switching time delay from 10pF~1000pF range. Ground terminal. Please connect this terminal with ground plane as close as possible for excellent RF performance. -3- NJG1542HB3 www..com nELECTRICAL CHARACTERISTICS (0.1~3.0GHz, with application circuit, without DC Blocking Capacitor, Losses of external circuit are excluded) PC-P1 Insertion Loss vs. Frequency (PC-P1 ON, VCTL=3.0V/0V, Pin=-10dBm) 0.0 0.0 PC-P2 Insertion Loss vs. Frequency (PC-P2 ON, VCTL=3.0V/0V, Pin=-10dBm) Insertion Loss (dB) -0.5 Insertion Loss (dB) 0.5 1.0 1.5 2.0 2.5 3.0 -0.5 -1.0 -1.0 -1.5 -1.5 -2.0 0.0 -2.0 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Frequency (GHz) Frequency (GHz) PC-P1 Isolation vs. Frequency (PC-P2 ON, VCTL=3.0V/0V, Pin=-10dBm) 0 0 PC-P2 Isolation vs. Frequency (PC-P1 ON, VCTL=3.0V/0V, Pin=-10dBm) -10 -10 Isolation (dB) -20 Isolation (dB) 0.5 1.0 1.5 2.0 2.5 3.0 -20 -30 -30 -40 -40 -50 0.0 -50 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Frequency (GHz) Frequency (GHz) PC-P1 VSWR vs. Frequency (VCTL=3.0V/0V,P1 port) 2.0 2.0 PC-P2 VSWR vs. Frequency (VCTL=3.0V/0V,P2 port) 1.8 1.8 VSWR 1.4 VSWR 0.5 1.0 1.5 2.0 2.5 3.0 1.6 1.6 1.4 1.2 1.2 1.0 0.0 1.0 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Frequency (GHz) Frequency (GHz) -4- NJG1542HB3 www..com nELECTRICAL CHARACTERISTICS (Application circuit (Parts list 2)) PC-P1 Insertion Loss vs. Input Power (PC-P1 ON, f=2.5GHz) 0.0 PC-P1 Output Power, ICTL vs. Input Power (PC-P1 ON, f=2.5GHz) 30 VCTL=2.5V VCTL=2.7V VCTL=3.0V VCTL=5.0V VCTL=6.5V 40 Output Power (dBm) Insertion Loss (dB) -0.5 25 30 -1.0 20 20 -1.5 VCTL=2.5V VCTL=2.7V VCTL=3.0V VCTL=5.0V VCTL=6.5V 15 10 -2.0 12 14 16 18 20 22 24 26 28 30 10 12 14 16 18 20 22 24 26 28 30 0 Input Power (dBm) Input Power (dBm) PC-P1 Insertion Loss vs. Ambient Temperature (PC-P1 ON, f=2.5GHz, Pin=18dBm) -0.2 -0.3 PC-P2 Isolation vs. Ambient Temperature (PC-P1 ON, VCTL=3.0V/0V, f=2.5GHz, Pin=18dBm) -10 Insertion Loss (dB) -0.4 -0.5 -0.6 -0.7 -0.8 -50 VCTL=2.5V VCTL=2.7V VCTL=3.0V VCTL=5.0V VCTL=6.5V Isolation (dB) -15 -20 0 50 o 100 -25 -50 0 50 o 100 Ambient Temperature ( C) Ambient Temperature ( C) PC-P1 P-1dB vs. Ambient Temperature (PC-P1 ON, f=2.5GHz) 30 20 ICTL vs. Ambient Temperature (PC-P1 ON, f=2.5GHz, Pin=18dBm) VCTL=2.5V VCTL=2.7V VCTL=3.0V VCTL=5.0V VCTL=6.5V 28 15 P-1dB (dBm) 26 ICTL (uA) 10 24 5 22 VCTL=2.5V VCTL=2.7V VCTL=3.0V 20 -50 0 50 o 100 0 -50 0 50 o 100 Ambient Temperature ( C) Ambient Temperature ( C) -5- ICTL (uA) NJG1542HB3 www..com nAPPLICATION CIRCUIT GND 8 1 GND 2 P2 C3 3 4 GND 5 C5 6 R1 VCTL2 (0V/2.7V) 7 C4 P1 C2 VCTL1 (2.7V/0V) C1 PC nRECOMMENDED PCB DESIGN (TOP VIEW) PCB:FR-4, t=0.5mm Capacitor: Size 1005 Strip Line Width=1.0mm PCB Size: 19.4x14.0mm Circuit losses including losses of capacitors and connectors freq (GHz) 0.8 1.0 1.5 1.8 2.0 2.5 Loss (dB) 0.11 0.12 0.16 0.19 0.21 0.27 nPARTS LIST No. C1~C3 C4,C5 Parts list 1 f=0.1~0.5GHz 1000pF 1000pF Parts list 2 f=0.5~2.0GHz 56pF 1000pF PRECAUTIONS [1] The DC blocking capacitors have to be placed at RF terminal of P1, P2 and PC. [2] To reduce stlipline influence on RF characteristics, please locate bypass capacitors (C4, C5) close to each terminals. [3] To avoid degradation of isolation or high power characteristics, please layout ground pattern right under this IC. -6- NJG1542HB3 www..com nPACKAGE OUTLINE (USB8-B3) (TOP VIEW) (SIDE VIEW) 1pin INDEX 0.0380.01 0.140.05 0.750.05 1.50.05 0.50.1 0.50.1 R0.075 1 2 3 0.20.1 1.50.05 0.30.05 8 0.30.1 4 0.20.1 TERMINAL TREAT PCB Molding material UNIT WEIGHT :Au :FR5 :Epoxy resin :mm :4mg 7 0.20.05 6 5 0.20.05 0.40.1 (BOTTOM VIEW) 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. This product may be damaged with electric static discharge (ESD) or spike voltage. Please handle with care to avoid these damages. [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. -7- |
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