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ASG402
DC-3000 MHz SiGe HBT Amplifier
Features
*SiGe Technology *16 dB Gain at 900 MHz *+29 dBm P1dB *+45 dBm Output IP3 *3.3 dB Noise Figure *ACPR= -50dBc@21dBm *ACLR= -45dBc@21dBm *Single +8 V Supply *SOT-89 Surface Mount Package
Description
The ASG402 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 16 1.44 1.44
Max.
Applications
*CDMA, GSM, W-CDMA, PCS *Power Amplifier *Gain Block *CATV Amplifier *IF Amplifier
44
45 3.3 29
Noise Figure Output P1dB Supply Current Supply Voltage Thermal Resistance, Rth
260
275 8 24.1
290
C/W
1) Measurement conditions are as follows: T = 25C, Vs = 6 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 +14 dBm/tone separated by 1 MHz. 4) The thermal resistance was determined at a DC power of 1.65 W (VCC=6 V, IC=275 mA) with RF signal and a lead temperature of 50.8 C.
Absolute Maximum Ratings
Parameters Operating device voltage RF input power (continuous) Supply current Operating case temperature Storage temperature Rating 7V +2 dB above Input P1dB 300 mA -40 to + 85C -40 to + 150C 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 ASG402 EB-ASG402-900 EB-ASG402-2000
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Description High linearity medium power amplifier (Available in tape and reel) Fully assembled evaluation kit (900 MHz) Fully assembled evaluation kit (2000 MHz)
www.ASB.co.kr Mar.. 2004
ASG402
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.
2/7
www.ASB.co.kr
Mar.. 2004
ASG402
Application Circuit: 900 MHz
Typical Performance
Frequency Magnitude S21 Magnitude S11 Magnitude S22 Output P1dB Output IP3
2) 1) 1)
Schematic
900 MHz 16 dB -15 dB -15 dB 29 dBm 45 dBm 3.3 dB 6V 275 mA 8V
C1=10 pF RF IN R3=300 R1=7.5 Vs= 8V R2=1.2 k L2=10 nH C6= C7= 100 pF 1000 pF C8= 1 F
C5=1 F L1=470 nH
C3=100 pF
Noise Figure Device Operating Voltage Current Supply Voltage
50
4.5 mm C2= 8 pF
ASG402
50
9 mm
RF OUT
L3=33 nH
C4=4.7 pF
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 +14 dBm/tone separated by 1 MHz.
Gain vs. Temperature
20 19 18
Board Layout (FR4, 40x40 mm2, 0.8T)
Gain ( dB )
17 16 15 14 13 12 -60
Frequency = 900MHz
-40
-20
0
20
o
40
60
80
100
Temperature ( C )
S-parameters
0 -15
-5
S11 ( dB )
-15
S12 ( dB )
-10
+ 85 C o + 25 C o - 40 C
o
-20
+ 85 C o + 25 C o - 40 C
o
-25
-30
-20
-35
-25 600
700
800
900
1000
1100
1200
-40 600
700
800
900
1000
1100
1200
Frequency ( MHz )
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Frequency ( MHz )
www.ASB.co.kr Mar.. 2004
ASG402
25 10
20
+ 85 C o + 25 C o - 40 C S22 ( dB )
o
0
S21 ( dB )
15
-10
10
-20
+ 85 C o + 25 C o - 40 C
o
5
-30
0 600
700
800
900
1000
1100
1200
-40 600
700
800
900
1000
1100
1200
Frequency ( MHz )
Frequency ( MHz )
OP1 vs. Frequency
36 34 30
ACPR vs. Channel Power ( Offset = 750kHz)
+ 85 C o + 25 C o - 40 C ACPR ( dBc )
o
Output P1dB ( dBm )
40
32 30 28 26 24
+ 85 C o + 25 C o - 40 C
o
50
60
70 22 20 800 80 12
850
900
950
1000
14
16
18
20
22
Frequency ( MHz )
Channel Output Power ( dBm ) IS-95, 9 Channels Forward
Output IP3 vs. Frequency ( Pout per tone = 14dBm )
55
Output IP3 vs. Tone Power
55
50
Output IP3 ( dBm )
Output IP3 ( dBm )
+ 85 C o + 25 C o - 40 C
o
Frequency = 900 MHz
50
+ 85 C o + 25 C o - 40 C
o
45
45
40
40
35
35
30 800
850
900
950
1000
30 12
14
16
18
20
22
Frequency ( MHz )
4/7
Pout per tone ( dBm )
www.ASB.co.kr Mar.. 2004
ASG402
Application Circuit: 2000 MHz
Typical Performance
Frequency Magnitude S21 Magnitude S11 Magnitude S22 Output P1dB Output IP3
2) 1) 1)
Schematic
2000 MHz 9 dB -15dB -14 dB 28 dBm 44 dBm 5.0 dB 6V 275 mA 8V
RF IN L3=33 nH L1= 100 nH C1= 1.0 pF C3=100 pF R2=1.2 k R3=300 L2= 6.8 nH C5=1 F Vs=8 V R1=7.5 C6= C7= C8= 100 pF 1000 pF 1 F
Noise Figure Device Operating Voltage Current Supply Voltage
50
4.5 mm C2=1.8 pF
ASG402
50
4.5 mm
RF OUT C4=2.2 pF
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 +14 dBm/tone separated by 1 MHz.
Gain vs. Temperature
13 12
Board Layout (FR4, 40x40 mm2, 0.8T)
Frequency = 2GHz
11
Gain ( dB )
10 9 8 7 6 5 -60
-40
-20
0
20
o
40
60
80
100
Temperature ( C )
S-parameters
0 -5
-10
-10
+ 85 C o + 25 C o - 40 C
o
S11 ( dB )
-30
+ 85 C o + 25 C o - 40 C
o
S12 ( dB )
2300
-20
-15
-20
-40
-25
-50 1700
1800
1900
2000
2100
2200
-30 1700
1800
1900
2000
2100
2200
2300
Frequency ( MHz )
Frequency ( MHz )
5/7
www.ASB.co.kr
Mar.. 2004
ASG402
20 0
15
+ 85 C o + 25 C o - 40 C S22 ( dB )
o
-5
+ 85 C o + 25 C o - 40 C
o
S21 ( dB )
10
-10
5
-15
0
-20
-5 1700
1800
1900
2000
2100
2200
2300
-25 1700
1800
1900
2000
2100
2200
2300
Frequency ( MHz )
Frequency ( MHz )
ACPR vs. Channel Power OP1 vs. Frequency
36 34 30
( Offset = 750 kHz )
+ 85 C o + 25 C o - 40 C ACPR ( dBc )
o o
Output P1dB ( dBm )
40
32 30 28 26 24
+ 85 C o + 25 C o - 40 C
50
60
70 22 20 1800 80 12
1850
1900
1950
2000
2050
2100
14
16
18
20
22
Frequency ( MHz )
Channel Output Power ( dBm ) IS-95, 9 Channels Forward
Output IP3 vs. Frequency ( Pout per tone = 14 dBm )
55 55
Output IP3 vs. Tone Power
50
Output IP3 ( dBm )
45
Output IP3 ( dBm )
+ 85 C o + 25 C o - 40 C
o
Frequency = 2 GHz
50
+ 85 C o + 25 C o - 40 C
o
45
40
40
35
35
30 1800
1850
1900
1950
2000
2050
2100
30 12
14
16
18
20
22
Frequency ( MHz )
6/7
Pout per tone ( dBm )
www.ASB.co.kr Mar.. 2004
ASG402
W-CDMA ACLR vs. Channel Power (3GPP W-CDMA, Test Model 1+64 DPCH, E5MHz offset)
-40
-45
Frequency = 2GHz ACLR ( dBc )
-50
-55
+ 85 C o + 25 C o - 40 C
o
-60
-65
-70 10
12
14
16
18
20
22
24
Output Channel Power ( dBm )
7/7
www.ASB.co.kr
Mar.. 2004

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