Application Note 1. VDD=2.7V / f=0.5 - 3.0GHz NJG1806K75 APPLICATION 1-1 SUMMARY This is VDD=2.7V / f=0.5 - 3.0GHz application note of NJG1806K75. This application note shows the typical electrical characteristics and application circuit. 1-2 MEASURED DATA General conditions: VDD=2.7V, VCTL(H)=1.8V, VCTL(L)=0V, Ta=+25°C, ZS=Zl=50Ω PARAMETERS Operating Current SYMBOL IDD CONDITIONS DATA UNITS No RF input 13.5 µA Insertion loss1 LOSS1 f=0.5GHz 0.29 dB Insertion loss2 LOSS2 f=1.0GHz 0.31 dB Insertion loss3 LOSS3 f=2.0GHz 0.33 dB Insertion loss4 LOSS4 f=2.7GHz 0.34 dB Isolation1 ISL1 f=0.5GHz 34.5 dB Isolation2 ISL2 f=1.0GHz 29.5 dB Isolation3 ISL3 f=2.0GHz 26.8 dB Isolation4 ISL4 f=2.7GHz 26.9 dB Return loss1 RL1 f=0.5GHz 18.9 dB Return loss2 RL2 f=1.0GHz 23.5 dB Return loss3 RL3 f=2.0GHz 26.0 dB Return loss4 RL4 f=2.7GHz 27.7 dB Input power at 1dB compression point1 P-1dB1 f=1.0GHz 29.4 dBm Input power at 1dB compression point2 P-1dB2 f=2.0GHz 30.0 dBm 50% VCTL to 10%/90% RF 272 ns Switching time TSW 1 Application Note 1-3 NJG1806K75 APPLICATION CIRCUIT (TOP VIEW) P1 C1 VDD 1 6 C4 C3 P2 2 5 3 4 PC VCTL C2 DECODER C5* NOTE: The bypass capacitor, C5 is optional, and is recommended only when the control line is affected under noisy environment. 1-4 PCB DESIGN GND 1pin mark C1 C2 P2 P1 PCB: FR-4, t=0.2mm Capacitor Size: 0603 (0.6 x 0.3 mm) Strip Line Width: 0.4mm PCB Size: 19.4 x 14.0mm Through Hole Diameter: 0.2mm I Loss of PCB, capacitor and connectors C5 C3 VCTL C4 Frequency (GHz) Loss (dB) 0.5 0.15 1.0 0.17 2.0 0.26 2.7 0.34 VDD PC PARTS LIST Parts ID Constants C1 to C3 56pF C4 1000pF C5 10pF Comment Murata MFG (GRM03 series) 2 Application Note NJG1806K75 1-5-1 Characteristics (PC-P1 ON, V =2.7V, V DD DD -0.2 -0.4 -8 -0.4 -8 -0.6 -12 -0.6 -12 -0.8 -16 -0.8 -16 -1.0 -20 -1.0 -20 -1.2 -24 -1.2 -24 -1.4 -28 -1.4 -28 Insertion Loss (dB) -4 PC-P1 LOSS -1.6 -32 PC-P2 ISL P1-P2 ISL -1.8 -2.0 0.0 0.5 1.0 1.5 2.0 -36 -32 PC-P1 ISL P1-P2 ISL -1.8 -2.0 0.0 0.5 1.0 DD 0 2.0 -40 3.0 2.5 Return Loss vs Frequency (PC-P2 ON, V =2.7V, V =1.8V) DD CTL =0V) CTL 0 -5 -5 P1 port PC port -15 -20 -25 -30 -35 -15 -20 -25 -30 -35 -40 -40 -45 -45 0.5 1.0 1.5 2.0 2.5 -50 0.0 3.0 0.5 1.0 Frequency (GHz) Loss, ISL vs Input Power (PC-P1 ON, V =2.7V, V DD 2.0 2.5 3.0 Loss, ISL vs Input Power =1.8V) (PC-P2 ON, V =2.7V, V CTL DD =0V) CTL 0.0 -0.2 -4 -0.2 -4 -0.4 -8 -0.4 -8 -0.6 -12 f=1.0GHz f=1.0GHz f=2.0GHz f=2.0GHz -0.8 -16 -1.0 -20 -1.2 -24 -1.4 -28 -1.6 -32 -1.8 -2.0 10 12 14 16 18 20 22 24 26 Input Power (dBm) 28 30 32 PC-P2 Insertion Loss (dB) 0 PC-P2 Isolation (dB) 0.0 1.5 Frequency (GHz) 0 -0.6 -12 f=1.0GHz f=1.0GHz f=2.0GHz f=2.0GHz -0.8 -16 -1.0 -20 -1.2 -24 -1.4 -28 -1.6 -32 -36 -1.8 -36 -40 -2.0 PC-P1 Isolation (dB) -50 0.0 P2 port PC port -10 Return Loss (dB) -10 Return Loss (dB) 1.5 -36 Frequency (GHz) Return Loss vs Frequency (PC-P1 ON, V =2.7V, V -4 -1.6 -40 3.0 2.5 0 PC-P2 LOSS Frequency (GHz) PC-P1 Insertion Loss (dB) =0V) CTL 0.0 -0.2 Insertion Loss (dB) (PC-P2 ON, V =2.7V, V 0 Isolation (dB) 0.0 Loss, ISL vs Frequency =1.8V) CTL Isolation (dB) Loss, ISL vs Frequency -40 10 12 14 16 18 20 22 24 26 28 30 32 Input Power (dBm) 3