1/7 www.ASB.co.kr Mar.. 2004
Parameters
Units
Min.
Typ.
Max.
Frequency Range
MHz
250 - 2500
Gain dB
16
Input VSWR
-
1.44
Output VSWR
-
1.44
Output IP3
2)
dBm
44
45
Noise Figure
dB
3.3
Output P1dB
dBm
29
Supply Current
mA
260
275
290
Supply Voltage
V
8
Thermal Resistance, R
th
4)
C/W
24.1
1) Measurement conditions are as follows: T = 25
C, 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 (V
CC
=6 V, I
C
=275 mA) with RF signal and a lead temperature
of 50.8
C.
Parameters
Rating
Remarks
Operating device voltage
7V
RF input power (continuous)
+2 dB above Input P1dB
Supply current
300 mA
Operating case temperature
-40 to
+ 85C
Storage temperature
-40 to
+ 150C
Application circuit for 900 MHz
Application circuit for 2 GHz
Part Number
Description
ASG402
High linearity medium power amplifier
(Available in tape and reel)
EB-ASG402-900 Fully
assembled evaluation kit (900 MHz)
EB-ASG402-2000 Fully
assembled evaluation kit (2000 MHz)
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
Features Description
Package Style: SOT-89
Specifications
1)
Applications
Absolute Maximum Ratings
ASG402
DC-3000 MHz SiGe HBT Amplifier
The ASG402 is designed for high linearity, high
gain, and low noise over a wide range of fre-
quency, being suitable for use in both receiver
and transmitter of wireless and wireline telecom-
munication 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.
CDMA, GSM, W-CDMA, PCS
Power Amplifier
Gain Block
CATV Amplifier
IF Amplifier
Ordering Information
Application Note
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
More Information
2/7 www.ASB.co.kr Mar.. 2004
a
Function Pin
No.
Input 1
Ground 2
Output 3
(Unit: mm)
ASG402
Outline Drawing
Pin Description
(Unit: mm)
1
2
3
2
Mounting Configuration
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.
Land Pattern
3/7 www.ASB.co.kr Mar.. 2004
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.
-60
-40
-20
0
20
40
60
80
100
12
13
14
15
16
17
18
19
20
Frequency = 900MHz
Ga
i
n
(
d
B
)
Temperature (
o
C )
ASG402
Application Circuit: 900 MHz
Typical Performance
S-parameters
Frequency 900
MHz
Magnitude S21
16 dB
Magnitude S11
1)
-15
dB
Magnitude S22
1)
-15
dB
Output P1dB
29 dBm
Output IP3
2)
45
dBm
Noise Figure
3.3 dB
Device Operating Voltage
6 V
Current 275
mA
Supply Voltage
8 V
Schematic
Gain vs. Temperature
600
700
800
900
1000
1100
1200
-25
-20
-15
-10
-5
0
+ 85
o
C
+ 25
o
C
- 40
o
C
S11 (
d
B
)
Frequency ( MHz )
600
700
800
900
1000
1100
1200
-40
-35
-30
-25
-20
-15
+ 85
o
C
+ 25
o
C
- 40
o
C
S12 (
d
B
)
Frequency ( MHz )
Board Layout (FR4, 40x40 mm
2
, 0.8T)
C2= 8 pF
C1=10 pF
R2=1.2 k
L2=10 nH
C4=4.7 pF
Vs= 8V
RF IN
RF OUT
ASG402
C6=
100 pF
C7=
1000 pF
C8=
1
F
50
4.5 mm
50
9 mm
L1=470 nH
C5=1
F
L3=33 nH
C3=100 pF
R1=7.5
R3=300
4/7 www.ASB.co.kr Mar.. 2004
ASG402
OP1 vs. Frequency
ACPR vs. Channel Power
( Offset = 750kHz)
Output IP3 vs. Frequency
( P
out
per tone = 14dBm )
Output IP3 vs. Tone Power
600
700
800
900
1000
1100
1200
0
5
10
15
20
25
+ 85
o
C
+ 25
o
C
- 40
o
C
S
2
1
( dB
)
Frequency ( MHz )
600
700
800
900
1000
1100
1200
-40
-30
-20
-10
0
10
+ 85
o
C
+ 25
o
C
- 40
o
C
S
2
2
( dB
)
Frequency ( MHz )
800
850
900
950
1000
20
22
24
26
28
30
32
34
36
+ 85
o
C
+ 25
o
C
- 40
o
C
O
u
tput
P1dB
( dB
m
)
Frequency ( MHz )
12
14
16
18
20
22
80
70
60
50
40
30
+ 85
o
C
+ 25
o
C
- 40
o
C
ACPR ( dB
c )
Channel Output Power ( dBm )
IS-95, 9 Channels Forward
800
850
900
950
1000
30
35
40
45
50
55
O
u
tput IP3 (
dBm
)
Frequency ( MHz )
+ 85
o
C
+ 25
o
C
- 40
o
C
12
14
16
18
20
22
30
35
40
45
50
55
Frequency = 900 MHz
+ 85
o
C
+ 25
o
C
- 40
o
C
Outp
ut IP3
( d
B
m
)
P
out
per tone ( dBm )
5/7 www.ASB.co.kr Mar.. 2004
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.
50
C2=1.8 pF
C1= 1.0 pF
R2=1.2 k
L2= 6.8 nH
C3=100 pF
Vs=8 V
RF IN
RF OUT
4.5 mm
C6=
100 pF
C7=
1000 pF
C8=
1
F
L3=33 nH
50
4.5 mm
C5=1
F
L1= 100 nH
ASG402
C4=2.2 pF
R3=300
R1=7.5
Application Circuit: 2000 MHz
Typical Performance
ASG402
Frequency 2000
MHz
Magnitude S21
9 dB
Magnitude S11
1)
-15dB
Magnitude S22
1)
-14
dB
Output P1dB
28 dBm
Output IP3
2)
44
dBm
Noise Figure
5.0 dB
Device Operating Voltage
6 V
Current 275
mA
Supply Voltage
8 V
Schematic
S-parameters
Gain vs. Temperature
1700
1800
1900
2000
2100
2200
2300
-50
-40
-30
-20
-10
0
+ 85
o
C
+ 25
o
C
- 40
o
C
S11 (
d
B
)
Frequency ( MHz )
1700
1800
1900
2000
2100
2200
2300
-30
-25
-20
-15
-10
-5
+ 85
o
C
+ 25
o
C
- 40
o
C
S12 (
d
B
)
Frequency ( MHz )
Board Layout (FR4, 40x40 mm
2
, 0.8T)
-60
-40
-20
0
20
40
60
80
100
5
6
7
8
9
10
11
12
13
Frequency = 2GHz
Ga
i
n
(
d
B
)
Temperature (
o
C )
6/7 www.ASB.co.kr Mar.. 2004
ASG402
OP1 vs. Frequency
ACPR vs. Channel Power
( Offset = 750 kHz )
Output IP3 vs. Frequency
( P
out
per tone = 14 dBm )
Output IP3 vs. Tone Power
1700
1800
1900
2000
2100
2200
2300
-5
0
5
10
15
20
+ 85
o
C
+ 25
o
C
- 40
o
C
S21 (
d
B
)
Frequency ( MHz )
1700
1800
1900
2000
2100
2200
2300
-25
-20
-15
-10
-5
0
+ 85
o
C
+ 25
o
C
- 40
o
C
S22 (
d
B
)
Frequency ( MHz )
1800
1850
1900
1950
2000
2050
2100
20
22
24
26
28
30
32
34
36
+ 85
o
C
+ 25
o
C
- 40
o
C
O
u
tput
P1dB
( dB
m
)
Frequency ( MHz )
12
14
16
18
20
22
80
70
60
50
40
30
+ 85
o
C
+ 25
o
C
- 40
o
C
ACPR ( dB
c )
Channel Output Power ( dBm )
IS-95, 9 Channels Forward
1800
1850
1900
1950
2000
2050
2100
30
35
40
45
50
55
+ 85
o
C
+ 25
o
C
- 40
o
C
O
u
tput IP
3 ( dB
m
)
Frequency ( MHz )
12
14
16
18
20
22
30
35
40
45
50
55
Frequency = 2 GHz
+ 85
o
C
+ 25
o
C
- 40
o
C
Outp
ut IP3
( d
B
m
)
P
out
per tone ( dBm )
7/7 www.ASB.co.kr Mar.. 2004
ASG402
W-CDMA ACLR vs. Channel Power
(3GPP W-CDMA, Test Model 1+64 DPCH, E5MHz offset)
10
12
14
16
18
20
22
24
-70
-65
-60
-55
-50
-45
-40
Frequency = 2GHz
A
C
LR (
dB
c )
Output Channel Power ( dBm )
+ 85
o
C
+ 25
o
C
- 40
o
C
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