NJG1150UA2 APPLICATION NOTE FOR LTE BAND-13 2fo IMPROVEMENT This application note shows an example in order to improve LTE band-13 2fo. The example of electrical characteristics are shown as follows: I ELECTRICAL CHARACTERISTICS (DC) General conditions: Ta=+25°C PARAMETER MEASURED DATA UNITS VDD 2.8 V Control Voltage (High) VCTL(H) 1.8 V Control Voltage (Low) VCTL(L) 0 V 6.05 mA 0.1 µA 6.8 µA Supply Voltage SYMBOL Supply Current1 IDD1 Supply Current2 IDD2 Control Current ICTL CONDITIONS Active mode, VDD=2.8V, VCTL=1.8V Stand-by mode, VDD=2.8V, VCTL=0V VCTL=1.8V I ELECTRICAL CHARACTERISTICS (RF) General conditions: VDD=2.8V, VCTL=1.8V, fRF=1575MHz, Ta=+25°C, Zs=Zl=50ohm, with application circuit MEASURED DATA PARAMETER Small Signal Gain Noise Figure Input Power at 1dB Gain Compression Point Input 3rd Order Intercept Point Out of Band Input 3rd Order Intercept Point 700MHz Harmonic SYMBOL Gain NF Exclude PCB and connector Losses (0.17dB) Exclude PCB and connector Losses (0.08dB) P-1dB(IN) IIP3 IIP3_OB 2fo UNITS CONDITIONS f1=fRF, f2=f1+/- 1MHz, Pin=-30dBm f1 =1712.7MHz Pin =-20dBm, f2 =1850MHz Pin =-65dBm Input jammer tone: 787.76MHz at –25dBm Measure the harmonic tone at 1575.52MHz Application Circuit 1 Application Circuit 2 15.6 15.5 dB 0.62 0.93 dB -6.7 -7.7 dBm +4.2 +3.3 dBm +8.7 +9.3 dBm -84.1 -139.1 dBm RF IN VSWR VSWRi 2.32 1.85 - RF OUT VSWR VSWRo 1.41 1.62 - -1- NJG1150UA2 Application Circuit 1 I BLOCK DIAGRAM (Top View) GND VCTL 5 VDD 4 6 L1 15nH VCTL VDD RFIN RFOUT 3 1 RF IN C1 1000pF RF OUT 2 L2 39nH GND C2 0.9pF I EVALUATION BOARD (Top View) Parts list Parts ID L1, L2 VCTL VDD C1, C2 Manufacture LQW15A Series (MURATA) GRM03 Series (MURATA) C1 RF IN L1 RF OUT L2 C2 PCB (FR-4): t=0.2mm MICROSTRIP LINE WIDTH =0.4mm (Z0=50Ω) PCB SIZE =14.0mm x 14.0mm -2- NJG1150UA2 Application Circuit 1 I ELECTRICAL CHARACTERISTICS Conditions: VDD=2.8V, VCTL=1.8V, Ta=25°C, Zs=Zl=50ohm, with application circuit S11, S22 S21, S12 VSWRi, VSWo Zin, Zout S11, S22 (f=50M~20GHz) S21, S12 (f=50M~20GHz) -3- NJG1150UA2 Application Circuit 2 I BLOCK DIAGRAM (Top View) GND VCTL VDD 5 4 6 C2 0.8pF VCTL VDD RFIN RFOUT 3 1 RF IN C1 1000pF RF OUT 2 L1 10nH GND C3 4pF I EVALUATION BOARD (Top View) Parts list Parts ID L1 VCTL VDD C1~C3 Manufacture LQW15A Series (MURATA) GRM03 Series (MURATA) C1 RF IN C2 RF OUT L1 C3 PCB (FR-4): t=0.2mm MICROSTRIP LINE WIDTH =0.4mm (Z0=50Ω) PCB SIZE =14.0mm x 14.0mm -4- NJG1150UA2 Application Circuit 2 I ELECTRICAL CHARACTERISTICS Conditions: VDD=2.8V, VCTL=1.8V, Ta=25°C, Zs=Zl=50ohm, with application circuit scale/div 10dB S11, S22 S21, S12 VSWRi, VSWo Zin, Zout S11, S22 (f=50M~20GHz) S21, S12 (f=50M~20GHz) -5- NJG1150UA2 I ELECTRICAL CHARACTERISTICS Conditions: VDD=2.8V, VCTL=1.8V, Ta=25°C, Zs=Zl=50ohm, with application circuit 2fo vs. Pjam (fjam=787.76MHz, fmeas=1575.52MHz) 20 NJRC standard circuit 0 Application circuit 1 Application circuit 2 2fo (dBm) -20 -40 -60 -80 -100 -120 -140 -40 -30 -20 -10 0 10 Pjam (dBm) MEASUREMENT BLOCK DIAGRAM Agilent E4440A Agilent E4425B BPF Signal Generator ATT 6dB fin=787.76MHz Pin=-25dBm BPF ATT 8dB Spectrum Analyzer fmeas=1575.52MHz f0=787.76MHz -6- NJG1150UA2 f0=1575.52MHz