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ASG101
DC-3000 MHz SiGe HBT Amplifier
Features
*SiGe Technology *22 dB Gain at 900 MHz *+18 dBm P1dB *+31 dBm Output IP3 *3.0 dB Noise Figure *Single +4.5 V Supply *SOT-89 Surface Mount Package
Description
The ASG101 is designed for high linearity, high gain, and low noise over a wide range of frequency, being suitable for use in both receiver and transmitter of wireless and wireline telecommunication systems. The product is manufactured using a state-of-the-art SiGe HBT process of the company's own, making it cost-effective and highly reliable. The amplifiers are available in a low cost SOT-89 package completing stringent DC and RF tests.
Package Style: SOT-89
Specifications 1)
Parameters Frequency Range Gain Input VSWR Output VSWR Output IP3
2)
Units MHz dB dBm dB dBm mA V
4)
Min.
Typ. 250 - 2500 22 1.5 1.5
Max.
Applications
*CDMA, GSM, W-CDMA, PCS *PA Driver Amplifier *Gain Block
28
31 3.0 18
33
*CATV Amplifier *IF Amplifier
Noise Figure Output P1dB Supply Current Supply Voltage Thermal Resistance, Rth
40
55 4.5 99.6
75
C/W
1) Measurement conditions are as follows: T = 25C, Vs = 4.5 V, Freq. = 900 MHz, 50 ohm system. 2) S11 & S22 can be improved, at a specific frequency, by moving an input shunt capacitor (C2) along an input transmission line. 3) OIP3 is measured with two tones at an output power of +5 dBm/tone separated by 1 MHz. 4) The thermal resistance was determined at a DC power of 0.243 W (VCC=4.5 V, IC=54 mA) with RF signal and a lead temperature of 90.3 C.
Absolute Maximum Ratings
Parameters Operating Case Temperature Storage Temperature Supply Voltage Input RF Power (continuous) Rating -40 to + 85C -40 to + 150C 6V +6 dB above Input P1dB Remarks
More Information
Website: www.asb.co.kr E-mail: sales@asb.co.kr Tel: (82) 42-528-7220 Fax: (82) 42-528-7222 ASB Inc., 4th Fl. Venture Town Bldg., 367-17 Goijeong-Dong, Seo-Gu, Daejon 302-716, Korea
Application Note
Application circuit for 900 MHz Application circuit for 2 GHz
Ordering Information
Part Number ASG101 EB-ASG101-900 EB-ASG101-2000 Description High linearity medium power amplifier (Available in tape and reel) Fully assembled evaluation kit (900 MHz) Fully assembled evaluation kit (2000 MHz)
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March. 2004
ASG101
Outline Drawing
(Unit: mm)
3 a 2 2
1
Pin Description
Function Input Ground Output
Pin No. 1 2 3
Land Pattern
Mounting Configuration
(Unit: mm)
Note: 1. The number and size of ground via holes in a circuit board is critical for thermal and RF grounding considerations. 2. We recommend that the ground via holes be placed on the bottom of lead pin 2 for better RF and thermal performance, as shown in the drawing at the left side.
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March. 2004
ASG101
Application Circuit: 900 MHz
Typical Performance
Frequency Magnitude S21 Magnitude S11 Magnitude S22 Output P1dB Output IP3
2) 1) 1)
Schematic
Vs=4.5V C4= C5= C6= 100 pF 1000 pF 1 F
900 MHz 22 dB -16 dB -19 dB 18 dBm 31 dBm 3.0 dB 4.5 V 55 mA
R1=10 k RF IN C1=6 pF
L1=22 nH RF OUT
50 5.5 mm
L2=10nH C2=5.6 pF
ASG101
50 4.5 mm
C3=100pF
Noise Figure Supply Voltage Current
1) S11 & S22 can be improved, at a specific frequency, by moving an input shunt capacitor (C2) along an input transmission line. 2) OIP3 is measured with two tones at an output power of +5 dBm/tone separated by 1 MHz.
Gain vs. Temperature
28
Board Layout (FR4, 40x40 mm2, 0.8T)
Frequency = 900MHz
26
24
22
20
18
16 -60
-40
-20
0
20
40
60
80
100
S-parameters
0 -5 -10 -15 -20 -25 -30 -35 600 700 800 900 1000 1100 1200
0
+ 85 C + 25 C - 40 C
S12 (dB)
-5 -10 -15 -20 -25 -30 -35 600 700 800 900 1000 1100 1200
+85 C +25 C -40 C
S11 (dB)
Frequency (MHz)
Frequency (MHz)
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www.ASB.co.kr
March. 2004
ASG101
35 0 -5 -10 -15 -20 20 -25 -30 -35 10 600 700 800 900 1000 1100 1200 600 700 800 900 1000 1100 1200
30
+ 85 C + 25 C - 40 C
+ 85 C + 25 C - 40 C
25
15
Output P1 vs. Frequency
26 24
Output P1dB (dBm)
22 20 18 16 14 12 10 800
+ 85 C + 25 C - 40 C
850
900
950
1000
Frequency (MHz)
Output IP3 vs. Frequency (Pout per tone = 5 dBm)
50
Output IP3 vs. Tone Power
50
45
+ 85 C + 25 C - 40 C
45
Frequency = 900 MHz
+ 85 C + 25 C - 40 C
40
40
35
35
30
30
25
25
800
820
840
860
880
900
920
940
2
3
4
5
6
7
8
9
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www.ASB.co.kr
March. 2004
ASG101
Application Circuit: 2000 MHz
Typical Performance
Frequency Magnitude S21 Magnitude S11 Magnitude S22 Output P1dB Output IP3
2) 1) 1)
Schematic
2000 MHz 15 dB -20 dB -17 dB 18 dBm 31 dBm 4.0 dB 4.5 V 55 mA
L2=22nH RF IN C1=2 pF R1=10 k RF OUT L1=22 nH Vs=4.5V C4= C5= C6= 100 pF 1000 pF 1 F
Noise Figure Supply Voltage Current
50 5.5 mm
C2=1.5 pF
ASG101
50 4.5 mm
C3=100pF
1) S11 & S22 can be improved, at a specific frequency, by moving an input shunt capacitor (C2) along an input transmission line. 2) OIP3 is measured with two tones at an output power of +5 dBm/tone separated by 1 MHz.
Gain vs. Temperature
20
Board Layout (FR4, 40x40 mm2, 0.8T)
18
Frequency = 2GHz
16
14
12
10 -60
-40
-20
0
20
40
60
80
100
S-parameters
0 -5 -10 -15 0 -5 -10 -15
+ 85 C + 25 C - 40 C
S11 (dB)
-20 -25 -30 -35 -40 -45 1600
S12 (dB)
2400
-20 -25 -30 -35 -40 -45 1600
+ 85 C + 25 C - 40 C
1700
1800
1900
2000
2100
2200
2300
1700
1800
1900
2000
2100
2200
2300
2400
Frequency (MHz)
Frequency (MHz)
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www.ASB.co.kr
March. 2004
ASG101
26 24 22 20 18 16 14 12 10 8 1600 0 -5
+ 85 C + 25 C - 40 C
-10 -15 -20 -25 -30 -35 -40 -45 1600
+ 85 C + 25 C - 40 C
1700
1800
1900
2000
2100
2200
2300
2400
1700
1800
1900
2000
2100
2200
2300
2400
Output P1 vs. Frequency
26 24 22 20 18 16 14
+ 85 C + 25 C - 40 C
1800
1850
1900
1950
2000
2050
2100
Output IP3 vs. Frequency (Pout per tone = 5 dBm)
50
50
Output IP3 vs. Tone Power
45
+ 85 C + 25 C - 40 C
45
+ 85 C + 25 C - 40 C
40
40
35
35
30
30
25 1800
25
1850
1900
1950
2000
2050
2100
0
1
2
3
4
5
6
7
8
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March. 2004

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