Application Note 5 NJG1126HB6 WiMAX Application 5. 3.5~3.7GHz BAND APPLICATION 5-1 SUMMARY The characteristics of 3.5~3.7GHz band have evaluated as follows. The evaluation circuit structure and measured data are reviewed. 5-2-1 MEASURED DATA1 (DC) General conditions: VDD=VINV=3.0V, Ta=+25oC, Zs=Zl=50Ω Parameter Symbol Conditions Measurement Unit data Operating Voltage VDD 3.0 V Inverter Voltage VINV 3.0 V Control Voltage (High) VCTL(H) 1.85 V Control Voltage (Low) VCTL(L) 0 V Operating current IDD1 RF OFF, VCTL=1.85V 2.27 mA Operating current IDD2 RF OFF, VCTL=0V 0.04 uA Inverter current IINV1 RF OFF, VCTL=1.85V 92.2 uA Inverter current IINV2 RF OFF, VCTL=0V 15.4 uA Control current ICTL RF OFF, VCTL=1.85V 4.2 uA 1 Application Note 5 NJG1126HB6 5-2-2 MEASURED DATA2 (LNA HIGH GAIN MODE) General conditions: VDD=VINV=3.0V, VCTL=1.85V, fRF=3.5~3.7GHz, Ta=+25oC, Zs=Zl=50Ω with application circuit Measurement Parameter Symbol Conditions Unit data Operating current1 IDD1 Small signal gain1 Gain1 Isolation1 ISO1 Noise figure1 NF1 Pin at 1dB compression point1 Input 3rd order intercept point1 RF OFF Exclude PCB/Connector losses (0.49dB) Exclude PCB/Connector losses (0.49dB) Exclude PCB/Connector losses (0.25dB) P-1dB(IN)_1 IIP3_1 f1=fRF, f2=fRF+100kHz, Pin=-24dBm 2.27 mA 11.7 ~ 12.4 dB -27.2 ~ -26.1 dB 1.73 ~ 1.95 dB -6.0 ~ -4.0 dBm +1.3 ~ +3.7 dBm RF Input port VSWR1 VSWRi_1 1.62 ~ 2.06 RF Output port VSWR1 VSWRo_1 2.06 ~ 2.70 5-2-3 MEASURED DATA3 (LNA LOW GAIN MODE) General conditions: VDD=VINV=3.0V, VCTL=0V, fRF=3.5~3.7GHz, Ta=+25oC, Zs=Zl=50Ω with application circuit Measurement Parameter Symbol Conditions Unit data Exclude PCB/Connector losses Small signal gain2 Gain2 -8.4 ~ -7.6 dB (0.49dB) Exclude PCB/Connector losses Isolation2 ISO2 -8.4 ~ -7.6 dB (0.49dB) Exclude PCB/Connector losses Noise figure2 NF2 4.2 ~ 11.7 dB (0.25dB) Pin at 1dB +10.0 ~ +14.0 dBm P-1dB(IN)_2 compression point2 Input 3rd order f1=fRF, f2=fRF+100kHz, IIP3_2 +15.5 ~ +16.0 dBm intercept point2 Pin=-10dBm RF Input port VSWR2 VSWRi_2 2.01 ~ 2.05 RF Output port VSWR2 VSWRo_2 1.22 ~ 2.25 2 Application Note 5 NJG1126HB6 5-3 APPLICATION CIRCUIT (Top View) L2 RF IN 1.0nH GND 4 RFIN L4 4.7nH RFOUT 5 RF OUT 3 C1 1000pF L3 2.4nH L1 2.2nH VDD=3.0V GND GND 6 2 C2 1000pF Bias Circuit VCTL=0V or 1.85V Logic Circuit VCTL VINV 7 1 GND C3 1000pF 8 VINV=3.0V 5-4 PCB DESIGN (Top View) Parts List Parts ID L1, L2 VDD L3, L4 C1~C3 C2 L3 L1 RF IN L2 L4 Comment TAIYO-YUDEN (HK1005 Series) TDK (MLG0603Q Series) MURATA (GRM03 Series) RF OUT C1 C3 VCTL VINV PCB (FR-4): t=0.2mm MICROSTRIP LINE WIDTH =0.4mm (Z0=50Ω) PCB SIZE=17.0mm x 17.0mm 3 Application Note 5 NJG1126HB6 5-5-1 TYPICAL CHARACTERISTICS (LNA HIGH GAIN MODE) Condition: Ta=+25oC, VDD=VINV=3.0V, VCTL=1.85V, Zs=Zl=50Ω NJG1126HB6 @High Gain Gain, IDD vs. Pin NJG1126HB6 @High Gain Pout vs. Pin (f=3600MHz) 8 16 5 14 0 12 6 -5 10 5 8 4 7 -10 Pout -20 6 3 IDD 2 4 -25 1 2 P-1dB(IN)=-5.5dBm -30 -40 -30 -20 P-1dB(IN)=-5.5dBm -10 0 0 -40 10 0 -30 -20 Pin (dBm) 0 10 Pin(dBm) NJG1126HB6 @High Gain OIP3, IIP3 vs. frequency NJG1126HB6 @High Gain Pout, IM3 vs. Pin (f1=3.3~3.9GHz, f2=f1+100kHz, Pin=-24dBm) (f1=3600MHz, f2=f1+100kHz) 20 -10 25 20 30 20 0 Pout 15 -20 -20 -40 -40 -60 -60 OIP3 (dBm) Pout, IM3 (dBm) 0 25 OIP3 20 10 15 5 10 0 5 -5 IM3 -80 IIP3 (dBm) -15 IDD(mA) Gain Gain(dB) Pout (dBm) (f=3600MHz) 10 0 IIP3 -80 -10 -5 IIP3=+2.8dBm -100 -40 -15 3.3 -100 -30 -20 -10 0 10 3.4 3.5 NJG1126HB6 @High Gain NF, Gain vs. frequency (f=3.3~3.9GHz) 3.8 -10 3.9 NJG1126HB6 @High Gain k factor vs. frequency 16 (f=50M~20GHz) 20 14 Gain 12 5 10 4 8 3 6 2 4 NF 1 15 k factor 6 Gain (dB) 7 Noise Figure (dB) 3.7 frequency (GHz) Pin(dBm) 8 3.6 10 5 2 (NF, Gain Exclude PCB, Connector Losses) 0 3.3 3.4 3.5 3.6 3.7 frequency (GHz) 3.8 0 3.9 0 0 5 10 15 20 frequency (GHz) 4 Application Note 5 NJG1126HB6 5-5-2 TYPICAL CHARACTERISTICS (LNA HIGH GAIN MODE) Condition: Ta=+25oC, VDD=VINV=3.0V, VCTL=1.85V, Zs=Zl=50Ω S11, S22 S21, S12 VSWR Zin, Zout S11, S22 (f=50MHz ~ 20GHz) S21, S12 (f=50MHz ~ 20GHz) 5 Application Note 5 NJG1126HB6 5-5-3 TYPICAL CHARACTERISTICS (LNA LOW GAIN MODE) Condition: Ta=+25oC, VDD=VINV=3.0V, VCTL=0V, Zs=Zl=50Ω NJG1126HB6 @Low Gain Gain, IDD vs. Pin NJG1126HB6 @Low Gain Pout vs. Pin (f=3600MHz) 60 -6 0 -8 -10 -10 40 -12 30 -20 -30 Gain 50 IDD 20 -14 Pout -40 IDD(mA) Gain(dB) Pout (dBm) (f=3600MHz) 10 P-1dB(IN)=+12.0dBm -16 10 P-1dB(IN)=+12.0dBm -50 -40 -30 -20 -10 0 10 -18 -40 20 0 -30 -20 -10 Pin (dBm) 20 NJG1126HB6 @Low Gain OIP3, IIP3 vs. frequency (f1=3.3~3.9GHz, f2=f1+100kHz, Pin=-10dBm) (f1=3600MHz, f2=f1+100kHz) 10 26 8 0 24 -20 Pout -40 -60 6 22 4 20 2 18 0 16 IIP3 -2 IM3 -80 -4 IIP3 (dBm) OIP3 OIP3 (dBm) Pout, IM3 (dBm) 10 Pin(dBm) NJG1126HB6 @Low Gain Pout, IM3 vs. Pin 20 0 14 12 IIP3=+15.5dBm -100 -40 -30 -20 -10 0 10 -6 3.3 20 3.4 3.5 NJG1126HB6 @Low Gain NF, Gain vs. frequency (f=3.3~3.9GHz) 3.8 10 3.9 NJG1126HB6 @Low Gain k factor vs. frequency -6 24 (f=50M~20GHz) 20 -7 20 15 -8 16 -9 12 -10 NF 8 -11 4 k factor Gain Gain (dB) Noise Figure (dB) 3.7 frequency (GHz) Pin(dBm) 28 3.6 10 5 -12 (NF, Gain Exclude PCB, Connector Losses) 0 3.3 3.4 3.5 3.6 3.7 frequency (GHz) 3.8 -13 3.9 0 0 5 10 15 20 frequency (GHz) 6 Application Note 5 NJG1126HB6 5-5-4 TYPICAL CHARACTERISTICS (LNA LOW GAIN MODE) Condition: Ta=+25oC, VDD=VINV=3.0V, VCTL=0V, Zs=Zl=50Ω S11, S22 S21, S12 VSWR Zin, Zout S11, S22 (f=50MHz ~ 20GHz) S21, S12 (f=50MHz ~ 20GHz) 7