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SGA-7489

Datasheet SGA-7489 Datasheet (Stanford Microdevices)

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Preliminary
Product Description
Stanford Microdevices SGA-7489 is a high performance cascadeable 50-ohm amplifier designed for operation at 5 Volts DC. This RFIC uses the latest Silicon Germanium Heterostructure Bipolar Transistor (SiGe HBT) process featuring 1 micron emitters with F
This circuit uses a darlington pair topology with resistive feedback for broadband performance as well as stability over its entire temperature range. Internally matched to 50 ohm impedance, the SGA-7489 requires only DC blocking and bypass capacitors and a bias inductor for external components. Frequency performance may be extended using the 2 GHz application circuit shown on sheet 5.
T up to 50 GHz.
SGA-7489
DC-3000 MHz Silicon Germanium HBT Cascadeable Gain Block
Product Features
DC-3000 MHz Operation
S21 vs. Frequency, T=+25C, Id=130 mA
25
20
15
10
S21 (dB)
5
0
0 500 1000 1500 2000 2500 3000
Frequency (MHz)
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The information provided herein is believed to be reliable at press time. Stanford Microdevices assumes no responsibility for inaccuracies or omissions. Stanford Microdevices assumes no responsibility for the use of this information, and all such information shall be entirely at the user s own risk. Prices and specifications are subject to change without notice. No patent rights or licenses to any of the circuits described herein are implied or granted to any third party. Stanford Microdevices does not authorize or warrant any Stanford Microdevices product for use in life-support devices and/or systems. Copyright 2001 Stanford Microdevices, Inc. All worldwide rights reserved.
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Phone: (800) SMI-MMIC http://www.stanfordmicro.com726 Palomar Ave., Sunnyvale, CA 94085
Single Voltage Supply
High Output Intercept: +36 dBm typ. at 850 MHzLow Noise Figure: 2.9 dB typ. at 850 MHz
Applications
Oscillator AmplifiersPA for Low / Medium Power ApplicationsIF/ RF Buffer AmplifierDrivers for CATV AmplifiersLO Driver Amplifier
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8.22
6.22
4.22 *3.02
6.83
2.73
0.63 *7.53
7.32
0.32
0.22 *3.81
8.52
8.52
4.52 *7.22
EDS-101801 Rev A
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Absolute Maximum Ratings
Operation of this device above any one of these parameters may cause permanent damage.
Bias Conditions should also satisfy the following expression: IDVD (max) < (TJ - TOP)/Rth, j-l
Key parameters, at typical operating frequencies:
Preliminary
Preliminary
SGA-7489 DC-3000 MHz 5V SiGe Amplifier
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2.61
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* NOTE: P1dB and IP3 @1950,2400 MHz may be improved by using the tuned circuit shown on sheet 5
9.61
---
9.13
9.81
8.31
7.12
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Phone: (800) SMI-MMIC http://www.stanfordmicro.com726 Palomar Ave., Sunnyvale, CA 94085
2
EDS-101801 Rev A
SGA-7489 DC-3000 MHz 5V SiGe Amplifier
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Preliminary
Preliminary
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Rbias
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SGA-7489 Basic Application Circuit
Phone: (800) SMI-MMIC http://www.stanfordmicro.com726 Palomar Ave., Sunnyvale, CA 94085
3
EDS-101801 Rev A
SGA-7489 DC-3000 MHz 5V SiGe Amplifier
S-Parameter Data @ -40C,+25C,+85C ,Id =130 mA
Preliminary
Preliminary
S21 vs. Freq. @-40C,+25C,+85C
30
24
18
12
S21(dB)
6
0
0 500 1000 1500 2000 2500 3000
Freque ncy (MHz)
S12 vs. Freq. @-40C,+25C,+85C
0
-6
-12
-18
S12(dB)
-24
-30 0 500 1000 1500 2000 2500 3000
Frequency (MHz)
S21(-40C) S21(+25C) S21(+85C)
S12(-40C) S12(+25C) S12(+85C)
S11 vs. Freq. @-40C,+25C,+85C
0
-5
-10
-15
S11(dB)
-20
-25 0 500 1000 1500 2000 2500 3000
Freque ncy (MHz)
S22 vs. Freq. @-40C,+25C,+85C
0
-8
-16
-24
S22(dB)
-32
-40 0 500 1000 1500 2000 2500 3000
Frequency (MHz)
S11(-40C S11(+25 S11(+85
S22(-40C S22(+25 S22(+85
P1dB & IP3 vs. Frequency @ 3 Temps.
= 130 mA
I
d
45 40 35 30 25
Level (dBm)
20 15 10
IP3
P1dB
0 100 200 300 400 500 600 700 800 900
Frequency (MHz)
Phone: (800) SMI-MMIC http://www.stanfordmicro.com726 Palomar Ave., Sunnyvale, CA 94085
4
P1dB(-40C) P1dB(+25C) P1dB(+85C) IP3(-40C) IP3(+25C) IP3(+85C)
EDS-101801 Rev A
RF input
2 GHz Application Ckt. Board
Rb1
Rb2
SGA-7489
Ground
Cd2
Cd1
Lb
CM2 Cc1
OUT
+7V
Rb2
Rb1
SGA-7489
Cc1CM1
IN
STANFORD MICRODEVICES
ECB-100607 Rev-A SOT-89 Eval Board
Cc1
Z1
CM1
Z2
SGA-7489 2 GHz Application Circuit
+Vcc
Preliminary
Preliminary
SGA-7489 DC-3000 MHz 5V SiGe Amplifier
The SGA-7489 may be tuned in the manner
shown below for operation at 2 GHz.
Component Parts List
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Table of Delay Elements
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CM2
Cc2
RF Output
Z3
3Z055.12
Note: Separation Distance between via
holes on board represents approx. 5.4
Degrees phase shift @ 2GHz for equivalent
distance on microstrip.
Board material is GETEK,e=4.1
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8.02
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8.32
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3.3
0.63
4.02
2.11
0.32
2.81
7.3
5.43
9.91
3.61
1.22
Bd Bd
mBd
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Phone: (800) SMI-MMIC http://www.stanfordmicro.com726 Palomar Ave., Sunnyvale, CA 94085
5
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EDS-101801 Rev A
Preliminary
Preliminary
SGA-7489 DC-3000 MHz 5V SiGe Amplifier
Gain v s. Frequency for 2GHz Tuned
25
Circuit, I
20
15
10
Gain (dB)
5
0
500 1000 1500 2000 2500 3000
= 130 mA, T=+25C
d
Frequency (MHz)
S-Parameter Data for 2 GHz Tuned Application Circuit
S21 vs. Frequency , Id=13 0 mA , T=+25 C
25
20
15
10
S21(dB)
5
0
0 500 1000 1500 2000 2500 3000
Frequency (MHz)
P1dB & IP3 vs. Frequency for 2GHz
Tuned Circuit, I
40 35 30 25 20 15
Level (dBm)
10
5 0
500 1000 1500 2000 2500 3000
=130 mA, T=+25C
d
IP3
P1dB
Frequency (MHz)
S11 v s. Frequency , Id=130 mA, T=+25C
0
-6
-12
-18
S11(dB)
-24
-30 0 500 1000 1500 2000 2500 300
Frequency (MHz)
S12 vs. Frequency , Id=13 0 mA , T=+25 C
0
-10
-20
-30
S12(dB)
-40
-50 0 500 1000 1500 2000 2500 3000
Frequency (MHz)
S22 v s. Frequency , Id=130 mA, T=+25C
0
-8
-16
-24
S22(dB)
-32
-40 0 500 1000 1500 2000 2500 300
Frequency (MHz)
Phone: (800) SMI-MMIC http://www.stanfordmicro.com726 Palomar Ave., Sunnyvale, CA 94085
6
EDS-101801 Rev A
SGA-7489 DC-3000 MHz 5V SiGe Amplifier
Noise Figure vs. Frequency for SGA-7489 2GHz
Tuned Circuit ,I
10
8 6 4
NF (dB)
2 0
1000 1500 2000 2500 3000
Id vs. Vd Variation over Temperature for
Vs=7 Volts and Rbias = 15 Ohms for SGA-7489
180
160
140
(mA)
d
120
I
100
=130 mA, T=+25C
d
Frequency (MHz)
Pd
max(Tj=150C)
+85C
=790mW
-40C
Preliminary
Preliminary
80
4.54.64.74.84.9 5 5.15.25.35.45.5
(Volts)
V
d
Plot of Vd vs. Temp. @ Id=130 mA (no signal)
5.3
5.2
5.1
5.0
4.9
Vd (Volts)
4.8
4.7
4.6
-50-30-101030507090
Temperature (Deg. C)
Phone: (800) SMI-MMIC http://www.stanfordmicro.com726 Palomar Ave., Sunnyvale, CA 94085
7
EDS-101801 Rev A
Preliminary
Preliminary
SGA-7489 DC-3000 MHz 5V SiGe Amplifier
Caution: ESD sensitive
Appropriate precautions in handling, packaging and testing devices must be observed.
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Package Dimensions
4
A74
3
2
Part Number Ordering Information
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9847-AGS"310003
Part Symbolization
The part will be symbolized with A74 designator on the top surface of the package.
PCB Pad Layout
DIMENSIONS ARE IN INCHES [MM]
Phone: (800) SMI-MMIC http://www.stanfordmicro.com726 Palomar Ave., Sunnyvale, CA 94085
8
EDS-101801 Rev A
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