The SGA-4586 is a high performance SiGe HBT MMIC Amplifier. A
Darlington configuration featuring 1 micron emitters provides high
FT and excellent thermal perfomance. The heterojunction in-
creases breakdown voltage and minimizes leakage current be-
tween junctions. Cancellation of emitter junction non-linearities
results in higher suppression of intermodulation products. Only
2 DC-blocking capacitors, a bias resistor and an optional RF
choke are required for operation.
The matte tin finish on Sirenza’s lead-free package utilizes a post
annealing process to mitigate tin whisker formation and is RoHS
compliant per EU Directive 2002/95. This package is also manu-
factured with green molding compounds that contain no anti-
mony trioxide nor halogenated fire retardants.
Gain & Return Loss vs. Freq. @T
L
=+25°C
SGA-4586Z
Pb
RoHS Compliant
&
Green
Package
DC-4000 MHz, Cascadable
SiGe HBT MMIC Amplifier
Product Features
•Now available in Lead Free, RoHS
Compliant, & Green Packaging
• High Gain : 17.9 dB at 1950 MHz
• Cascadable 50 Ohm
• Operates From Single Supply
• Low Thermal Resistance Package
32.0
GAIN
0.0
-10.0
IRL
24.0
Gain (dB)
16.0
ORL
Return Loss (dB)
Applications
•
•
•
•
PA Driver Amplifier
Cellular, PCS, GSM, UMTS
IF Amplifier
Wireless Data, Satellite
-20.0
-30.0
-40.0
0.0
1.0
2.0
3.0
Frequency (GHz)
4.0
5.0
8.0
0.0
Symbol
G
Parameter
Small Signal Gain
Units
dB
dB
dB
dBm
dBm
dBm
dBm
MHz
dB
dB
dB
V
mA
°C/W
Frequency
850 MHz
1950 MHz
2400 MHz
850 MHz
1950 MHz
850 MHz
1950 MHz
Min.
22.0
Typ.
24.0
17.9
16.3
16.5
13.7
28.6
27.7
4000
Max.
26.5
P
1dB
OIP
3
Output Power at 1dB Compression
Output Third Order Intercept Point
Bandwidth
Determined by Return Loss (>10dB)
IRL
ORL
NF
V
D
I
D
R
TH
, j-l
Input Return Loss
Output Return Loss
Noise Figure
Device Operating Voltage
Device Operating Current
Thermal Resistance (junction to lead)
V
S
= 8 V
R
BIAS
= 100 Ohms
1950 MHz
1950 MHz
1950 MHz
19.4
21.5
1.9
3.6
41
45
97
49
Test Conditions:
I
D
= 45 mA Typ.
T
L
= 25ºC
OIP
3
Tone Spacing = 1 MHz, Pout per tone = -5 dBm
Z
S
= Z
L
= 50 Ohms
The information provided herein is believed to be reliable at press time. Sirenza Microdevices assumes no responsibility for inaccuracies or omissions. Sirenza 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. Sirenza Microdevices does not authorize or warrant any Sirenza Microdevices product for use in life-support devices and/or systems. Copyright 2001 Sirenza Microdevices, Inc.. All worldwide rights
reserved.
303 Technology Court, Broomfield, CO 80021
Phone: (800) SMI-MMIC
1
http://www.sirenza.com
EDS-101266 Rev.D
SGA-4586 DC-4000 MHz Cascadable MMIC Amplifier
Preliminary
Typical RF Performance at Key Operating Frequencies
Symbol
Parameter
Unit
100
Frequency
Frequency (MHz)
Frequency (MHz)(MHz)
500
850
1950
2400
3500
G
OIP
3
P
1dB
IRL
ORL
S
12
NF
Small Signal Gain
Output Third Order Intercept Point
Output Power at 1dB Compression
Input Return Loss
Output Return Loss
Reverse Isolation
Noise Figure
V
S
= 8 V
V
S
= 8 V
R
BIAS
= 100 Ohms
R
BIAS
= 39 Ohms
dB
dBm
dBm
dB
dB
dB
dB
= 45 mA Typ.
II
D
= 80 mA Typ.
D
T = 25ºC
T
LL
= 25ºC
26.2
27.7
16.3
18.1
18.5
30.1
14.9
20.6
28.4
1.7
24.0
28.6
16.5
15.0
24.4
26.6
1.7
18.0
26.0
14.0
19.4
21.5
21.2
1.9
16.3
26.3
12.7
19.8
18.3
19.3
2.3
16.1
16.1
15.8
Test Conditions:
OIP Tone Spacing = 1 MHz, Pout per tone = -5 dBm
OIP
33
Tone Spacing = 1 MHz, Pout per tone = 0 dBm
Z
S
= Z = 50 Ohms
Z
S
= Z
LL
= 50 Ohms
Absolute Maximum Ratings
Noise Figure vs. Frequency
V
D
= 3.2 V, I
D
= 45 mA
5
Noise Figure (dB)
4
3
2
1
Parameter
Max.
Device Current
(I
D
)
Max.
Device
Voltage (V
D
)
Max.
RF Input Power
Max.
Junction Temp
. (T
J
)
Operating Temp
. Range (T
L
)
Absolute Limit
90
mA
5V
+18 dBm
+1
50
°C
-40°C to +85°C
+150°C
Max.
Storage Temp
.
T
L
=+25ºC
0
0
0.5
1
1.5
2
Frequency (GHz)
2.5
3
Operation of this device beyond any one of these limits may
cause permanent damage. For reliable continous operation,
the device voltage and current must not exceed the maximum
operating values specified in the table on page one.
Bias conditions should also satisfy the following expression:
I
D
V
D
< (T
J
- T
L
) / R
TH
, j-l
OIP
3
vs. Frequency
V
D
= 3.2 V, I
D
= 45 mA
35
30
OIP
3
(dBm)
P
1dB
vs. Frequency
V
D
= 3.2 V, I
D
= 45 mA
18
16
P
1dB
(dBm)
14
12
10
25
20
T
L
=+25ºC
15
0
0.5
1
1.5
2
Frequency (GHz)
2.5
3
T
L
=+25ºC
8
0
0.5
1
1.5
2
Frequency (GHz)
2.5
3
303 Technology Court, Broomfield, CO 80021
Phone: (800) SMI-MMIC
2
http://www.sirenza.com
EDS-101266 Rev.D
SGA-4586 DC-4000 MHz Cascadable MMIC Amplifier
Preliminary
Typical RF Performance Over Temperature (
Bias: V
D
= 3.2 V,
I
D
= 45 mA (Typ.)
)
32
24
S
21
(dB)
|
S
21
|
vs. Frequency
T
L
+25°C
-40°C
+85°C
0
-10
S
11
(dB)
|
S
11
|
vs. Frequency
16
8
0
0.0
1.0
2.0
3.0
Frequency (GHz)
4.0
5.0
-20
-30
T
L
-40
0.0
1.0
2.0
3.0
Frequency (GHz)
4.0
+25°C
-40°C
+85°C
5.0
0
-10
|
S
12
|
vs. Frequency
0
-10
S
22
(dB)
|
S
22
|
vs. Frequency
S
12
(dB)
-20
-30
-20
-30
T
L
-40
0.0
1.0
2.0
3.0
4.0
Frequency (GH z)
+25°C
-40°C
+85°C
T
L
-40
5.0
+25°C
-40°C
+85°C
0.0
1.0
2.0
3.0
Frequency (GHz)
4.0
5.0
NOTE: Full S-parameter data available at
www.sirenza.com
303 Technology Court, Broomfield, CO 80021
Phone: (800) SMI-MMIC
3
http://www.sirenza.com
EDS-101266 Rev.D
SGA-4586 DC-4000 MHz Cascadable MMIC Amplifier
Preliminary
Basic Application Circuit
R
BIAS
Application Circuit Element Values
Frequency (Mhz)
Reference
Designator
500
850
1950
2400
3500
V
S
1 uF
1000
pF
C
D
L
C
C
B
C
D
L
C
220 pF
100 pF
68 nH
100 pF
68 pF
33 nH
68 pF
22 pF
22 nH
56 pF
22 pF
18 nH
39 pF
15 pF
15 nH
RF in
C
B
4
1
SGA-4586
3
2
C
B
RF out
Recommended Bias Resistor Values for I
D
=45mA
R
BIAS
=( V
S
-V
D
) / I
D
Supply Voltage(V
S
)
R
BIAS
6V
51
8V
100
10 V
150
12 V
180
V
S
R
BIAS
Note: R
BIAS
provides DC bias stability over temperature.
1 uF
1000 pF
Mounting Instructions
1. Use a large ground pad area under device pins 2
and 4 with many plated through-holes as shown.
L
C
C
D
C
B
A45
C
B
2. We recommend 1 or 2 ounce copper. Measurements
for this data sheet were made on a 31 mil thick FR-4
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