AST163 High Gain, Low Noise Amplifier Features Description ·13.5 dB Gain at 1575 MHz ·1.1 dB NF at 1575 MHz ·One-stage LNA AST163 is a one-stage LNA for GPS, DMB, and satellite receiver low noise blocks. It has a low noise, high gain, and high linearity over a wide range of frequency up to 6 GHz. It is also suitable for use in the low noise amplifier block of the mobile wireless systems of T-DMB, CDMA, GSM, PCS, WCDMA, WiBro, WiMAX, and WLAN so on. The amplifier is available in an SOT-363 package and passes the stringent DC, RF, and reliability tests. Typical Performance Package Style: SOT-363 Application Circuit Parameters Units Testing Frequency Typical 1575 1575 1575 · GPS 13.5 14 15.5 14.2 · GPS (2.8 V) -10 -12 -10 -10 · GPS (2.8 V / MHz 1575 Gain dB S11 dB S22 Without strip lines) dB -10 -14 -11 -10 dBm 16 18 24 21.2 · 1710 ~ 1880 MHz Noise Figure dB 1.1 0.95 0.9 1.3 · 1950 MHz Output P1dB dBm 10 10 10 10 Current mA 3.7 6.0 9.5 9.5 V 3 3 2.8 2.8 Output IP3 1) Device Voltage 1) OIP3 is measured with two tones at an output power of -5dBm/tone separated by 1MHz. Product Specifications* Parameters Frequency Units Min MHz Gain dB Typ 1575 13 13.5 S11 dB -10 S22 dB -10 Output IP3 dBm 15 16 Noise Figure dB Output P1dB dBm Current mA 3.7 V 3 Device Voltage Max 1.1 9 1.3 10 *100% in-house DC & RF testing is done on packaged products before taping Pin Configuration Absolute Maximum Ratings Parameters Rating Operating Case Temperature -40 to +85°C Storage Temperature -40 to +150°C Device Voltage +5 V Operating Junction Temperature +150°C Input RF Power (CW, 50ohm matched)* 22 dBm Pin No. Function 1 RF IN 2 GND 3 GND 4 RF OUT / Bias 5 GND 6 GND * Please find the max. input power data from http://www.asb.co.kr/pdf/Maximum_Input_Power_Analysis.pdf 1/8 ASB Inc. · [email protected] · Tel: +82-42-528-7223 July 2010 AST163 High Gain, Low Noise Amplifier Outline Drawing Symbols A A1 A2 b C D F E1 e e1 L Pin NO. Function Pin NO. Function. 1 RF IN 4 RF OUT / Bias 2 GND 5 GND 3 GND 6 GND MIN 0.90 0.025 0.875 0.20 0.10 1.90 1.15 2.00 ---- Dimensions (In mm) NOM 1.00 0.062 0.937 0.30 0.125 2.00 1.25 2.10 0.65BSC 1.30BSC 0.425REF MAX 1.10 0.10 1.00 0.40 0.15 2.10 1.35 2.20 ---- Ordering Information Part Number 2/8 Description ASB Inc. · [email protected] · Tel: +82-42-528-7223 July 2010 AST163 High Gain, Low Noise Amplifier APPLICATION CIRCUIT GPS Frequency (MHz) 1575 Magnitude S21 (dB) 13.5 14 Magnitude S11 (dB) -10 -12 Magnitude S22 (dB) -10 -14 Output P1dB (dBm) 10 10 1) 1575 MHz +3 V 1575 2) Output IP3 (dBm) 16 18 Noise Figure (dB) 1.1 0.95 Supply Voltage (V) 3 3 3.7 6.0 Current (mA) 1) OIP3 is measured with two tones at an output power of -5 dBm/tone separated by 1MHz. 2) It is the test result when the R1 value is 1.1 kohm. A user can easily increase an operating current by choosing R1 value. Board Layout (FR4, 15.3x12 mm2, 0.8T) Top Schematic VDD R1=1 kW C3=10 nF C4=1 uF L1=6.2 nH R2=9.1 kW C1=100 pF RF IN *P1 L2=6.8 nH C2=1.2 pF RF OUT AST163 *P1 Bottom R3=51 W Note: 1) the length of the strip line P1 is given as below at the PCB with Er = 4.5 and T = 0.8 mm. *P1 Length: 3.5 mm, Width: 0.3 mm 2) Gain and S11 are in trade-off and varied with the length of P1 S-parameters & Noise Figure 5 20 0 o -40 c o 25 c o 85 c 15 S11 (dB) Gain (dB) -5 10 o -40 c o 25 c o 85 c 5 0 1400 1450 1500 1550 1600 1650 1700 1750 -10 -15 1800 -20 1400 1450 1500 5 -5 4 Stability Factor 0 S22 (dB) -10 -15 o -40 c o 25 c o 85 c -20 -25 1400 1450 1500 1550 1600 1650 1600 1650 1700 1750 1800 1700 1750 3 2 1 1800 0 0 500 1000 Frequency (MHz) 3/8 1550 Frequency (MHz) Frequency (MHz) 1500 2000 2500 3000 3500 Frequency (MHz) ASB Inc. · [email protected] · Tel: +82-42-528-7223 July 2010 AST163 High Gain, Low Noise Amplifier 1.5 1.4 1.3 S22 S11 S(2,2) S(1,1) Noise Figure 1.2 1.1 1.0 0.9 0.8 0.7 0.6 0.5 1400 1450 1500 1550 1600 1650 1700 1750 1800 Frequency (MHz) freq (1.400GHz to 1.800GHz) Gain vs. Temperature Current vs. Temperature 25 5.0 4.5 20 4.0 15 3.0 Gain (dB) Current (mA) 3.5 2.5 2.0 10 1.5 Frequency = 1575 MHz 5 1.0 0.5 0.0 -60 -40 -20 0 20 40 60 80 0 -60 100 -40 -20 0 20 40 60 80 100 o o Temperature ( C) Temperature ( C) Output IP3 vs. Tone Power (Frequency = 1575 MHz) P1dB vs. Temperature 14 35 30 12 Output IP3 (dBm) P1dB (dBm) 25 10 8 20 15 o -40 c o 25 c o 85 c 10 Frequency = 1575 MHz 6 5 4 -60 -40 -20 0 20 40 60 80 100 0 -11 -10 -9 o 4/8 -8 -7 -6 -5 -4 -3 -2 -1 0 1 Pout per Tone (dBm) Temperature ( C) ASB Inc. · [email protected] · Tel: +82-42-528-7223 July 2010 AST163 High Gain, Low Noise Amplifier APPLICATION CIRCUIT GPS Frequency (MHz) 1575 Magnitude S21 (dB) 15.5 Magnitude S11 (dB) -10 Magnitude S22 (dB) -11 Output P1dB (dBm) 10 1) 1575 MHz +2.8 V Output IP3 (dBm) 24 Noise Figure (dB) 0.9 Supply Voltage (V) 2.8 Current (mA) 9.5 1) OIP3 is measured with two tones at an output power of -5 dBm/tone separated by 1MHz. Board Layout (FR4, 15.3x12 mm2, 0.8T) Top Schematic VDD R1=910 W C3=10 nF C4=1 uF L1=6.2 nH R2=6.2 kW C1=100 pF RF IN *P1 L2=6.8 nH C2=1.2 pF AST163 *P1 RF OUT Bottom R3=30 W Note: 1) the length of the strip line P1 is given as below at the PCB with Er = 4.5 and T = 0.8 mm. *P1 Length: 3.4 mm, Width: 0.3 mm 2) Gain and S11 are in trade-off and varied with the length of P1 S-parameters & Noise Figure 25 0 20 15 S11 (dB) Gain (dB) -5 10 -10 -15 5 0 1400 1450 1500 1550 1600 1650 1700 1750 1800 -20 1400 1450 1500 Frequency (MHz) -5 4 Stability Factor 5 S22 (dB) -10 -15 -20 1650 1700 1750 1800 3 2 1 1450 1500 1550 1600 1650 1700 1750 1800 0 0 500 1000 Frequency (MHz) 5/8 1600 Frequency (MHz) 0 -25 1400 1550 1500 2000 2500 3000 3500 Frequency (MHz) ASB Inc. · [email protected] · Tel: +82-42-528-7223 July 2010 AST163 High Gain, Low Noise Amplifier APPLICATION CIRCUIT Without strip lines GPS Frequency (MHz) 1575 Magnitude S21 (dB) 14.2 Magnitude S11 (dB) -10 Magnitude S22 (dB) -10 Output P1dB (dBm) 10 1) Output IP3 (dBm) 21.2 Input IP3 (dBm) 1575 MHz +2.8 V 7 Noise Figure (dB) 1.3 Supply Voltage (V) 2.8 Current (mA) 9.5 1) OIP3 is measured with two tones at an output power of -5 dBm/tone separated by 1MHz. Board Layout (FR4, 15.3x12 mm2, 0.8T) Top Schematic VDD R1=910 W C2=10 nF C3=1 uF R2=6.2 kW L1=6.2 nH RF IN C1=100 pF L2=6.8 nH C4=2 pF AST163 RF OUT Bottom R3=680 W C5=1 nF S-parameters & Noise Figure 0 25 20 15 S11 (dB) Gain (dB) -5 10 -10 -15 5 0 1400 1450 1500 1550 1600 1650 1700 1750 1800 -20 1400 1450 1500 1550 1600 1650 1700 1750 1800 Frequency (MHz) Frequency (MHz) 0 5 4 Stability Factor S22 (dB) -5 -10 3 2 -15 1 -20 1400 1450 1500 1550 1600 1650 1700 1750 1800 0 0 500 1000 Frequency (MHz) 6/8 1500 2000 2500 3000 3500 Frequency (MHz) ASB Inc. · [email protected] · Tel: +82-42-528-7223 July 2010 AST163 High Gain, Low Noise Amplifier Parameter APPLICATION CIRCUIT 1710 ~ 1880 MHz +5 V / 35 mA Frequency [MHz] Symbol Unit Power Gain Gp dB 17.5 Noise Figure NF dB 0.65 Input Return Loss RLin dB -10 Output Return Loss 1 dB Gain Compression Output Power rd 3 Intercept Point 1) Output Power Circuit Current RLout dB -8 Po(1dB) dBm 16.5 OIP3 dBm 28 Icc mA 35 1710~1880 1) OIP3 is measured with two tones at an output power of +0 dBm/tone separated by 1MHz. Board Layout (FR4, 23x13 mm2, 0.8T) Top Schematic VDD R1=750 W C4=1 uF R3=30 W C3=10 nF R2=5.1 kW L1=4.7 nH C1=100 pF RF IN *P1 L2=8.2 nH C2=100 pF AST163 *P1 RF OUT Bottom Note: 1) the length of the strip line P1 is given as below at the PCB with Er = 4.5 and T = 0.8 mm. *P1 Length: 0.4 mm, Width: 0.3 mm 2) Gain and S11 are in trade-off and varied with the length of P1 S-parameters & K-factor 25 0 20 15 S11 (dB) Gain (dB) -5 10 -10 -15 5 0 1500 1600 1700 1800 1900 2000 2100 -20 1500 1600 1700 Frequency (MHz) 0 1900 2000 2100 5 4 Stability Factor -5 S22 (dB) 1800 Frequency (MHz) -10 3 2 -15 1 -20 1500 1600 1700 1800 1900 2000 2100 0 0 500 Frequency (MHz) 7/8 1000 1500 2000 2500 3000 3500 Frequency (MHz) ASB Inc. · [email protected] · Tel: +82-42-528-7223 July 2010 AST163 High Gain, Low Noise Amplifier Parameter APPLICATION CIRCUIT 1950 MHz +5 V / 25 mA Frequency [MHz] Symbol Unit Power Gain Gp dB 16 Noise Figure NF dB 0.65 Input Return Loss RLin dB -10 Output Return Loss 1 dB Gain Compression Output Power rd 3 Intercept Point 1) Output Power Circuit Current RLout dB -14 Po(1dB) dBm 16 OIP3 dBm 29 Icc mA 25 1950 1) OIP3 is measured with two tones at an output power of +0 dBm/tone separated by 1MHz. Board Layout (FR4, 23x13 mm2, 0.8T) Top Schematic VDD R1=750 W C6=1 uF R3=39 W C4=10 nF C5=10 nF R2=6.2 kW L1=5.6 nH C1=100 pF RF IN *P1 L2=3.3 nH C2=2.2 pF AST163 RF OUT *P1 C3=0.5 pF Bottom Note: 1) the length of the strip line P1 is given as below at the PCB with Er = 4.5 and T = 0.8 mm. *P1 Length: 1.2 mm, Width: 0.3 mm 2) Gain and S11 are in trade-off and varied with the length of P1 20 0 15 -5 S11 (dB) Gain (dB) S-parameters & K-factor 10 5 0 1700 -10 -15 1800 1900 2000 2100 2200 2300 -20 1700 1800 1900 Frequency (MHz) 0 2100 2200 2300 5 4 Stability Factor -5 S22 (dB) 2000 Frequency (MHz) -10 3 2 -15 1 -20 1700 1800 1900 2000 2100 2200 2300 0 0 500 Frequency (MHz) 8/8 1000 1500 2000 2500 3000 3500 Frequency (MHz) ASB Inc. · [email protected] · Tel: +82-42-528-7223 July 2010