The SGA-6289 is a high performance SiGe HBT MMIC Amplifier.
A Darlington configuration featuring 1 micron emitters provides
high F
T
and excellent thermal perfomance. The heterojunction
increases breakdown voltage and minimizes leakage current
between 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
manufactured with green molding compounds that contain no
antimony trioxide nor halogenated fire retardants.
SGA-6289
SGA-6289Z
Pb
RoHS Compliant
&
Green
Package
DC-4500 MHz, Cascadable
SiGe HBT MMIC Amplifier
Product Features
•
Now available in Lead Free, RoHS
Compliant, & Green Packaging
•
Broadband Operation: DC-4500 MHz
• Cascadable 50 Ohm
• Operates From Single Supply
Gain & Return Loss vs. Frequency
20
0
• Low Thermal Resistance Package
Return Loss (dB)
15
GAIN
IRL
-10
Gain (dB)
Applications
•
PA Driver Amplifier
• Cellular, PCS, GSM, UMTS
• IF Amplifier
• Wireless Data, Satellite
10
ORL
5
-20
-30
0
0
1
2
3
4
5
-40
Frequency (GHz)
Sym bol
G
P a ra m e te r
S m a ll S ig na l G a in
U n its
dB
Frequency
8 5 0 M Hz
1 9 5 0 M Hz
2 4 0 0 M Hz
8 5 0 M Hz
1 9 5 0 M Hz
8 5 0 M Hz
1 9 5 0 M Hz
M in .
1 2 .3
Typ.
1 3 .9
1 2 .6
1 2 .2
1 8 .1
1 7 .8
3 4 .4
3 2 .0
4500
M ax.
1 5 .1
P
1dB
O IP
3
B a nd w id th
O utp ut P o w e r a t 1 d B C o m p re s s io n
O utp ut T hird O rd e r Inte rc e p t P o int
D e te rm ine d b y R e turn L o s s (> 1 0 d B )
Inp ut R e turn L o s s
O utp ut R e turn L o s s
No is e F ig ure
D e vic e O p e ra ting Vo lta g e
D e vic e O p e ra ting C urre nt
T he rm a l R e s is ta nc e (junc tio n to le a d )
V
S
= 8 V
R
BIAS
= 51 Ohms
dBm
dBm
M Hz
dB
dB
dB
V
mA
°C /W
IR L
O RL
NF
V
D
I
D
R
T H
, j-l
1 9 5 0 M Hz
1 9 5 0 M Hz
1 9 5 0 M Hz
3 .6
67
1 8 .5
1 3 .1
4 .0
4 .0
75
97
4 .4
83
Test Conditions:
I
D
= 75 mA Typ.
T
L
= 25ºC
OIP
3
Tone Spacing = 1 MHz, Pout per tone = 0 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 2007 Sirenza Microdevices, Inc.. All worldwide rights
reserved.
303 Technology Court, Broomfield, CO 80021
Phone: (800) SMI-MMIC
1
http://www.sirenza.com
EDS-100619 Rev G
SGA-6289 DC-4500 MHz Cascadable MMIC Amplifier
Preliminary
Typical RF Performance at Key Operating Frequencies
Frequency
Frequency (MHz)
Frequency (MHz)(MHz)
Symbol
Parameter
Unit
100
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
dB
dBm
dBm
dB
dB
dB
dB
13.5
36.0
18.7
20.8
32.8
17.4
3.9
14.0
35.0
18.6
19.5
25.6
18.6
3.8
13.9
34.4
18.1
19.3
20.6
18.9
3.7
12.6
32.0
17.8
18.5
13.1
19.2
4.0
12.2
31.2
17.1
17.9
12.2
19.1
4.6
10.6
28.2
15.6
14.7
12.6
18.1
5.1
V
S
= 8 V
Test Conditions:
V
S
= 8 V
Test Conditions:
R
BIAS
= 51 Ohms
R
BIAS
= 39 Ohms
= 75 mA Typ.
II
D
= 80 mA Typ.
D
T = 25ºC
T
LL
= 25ºC
OIP Tone Spacing = 1 MHz, Pout per tone = 0 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
= 4.0 V, I
D
= 75 mA
7
6
5
4
3
2
0
1
2
3
Frequency (GHz)
4
5
P a ra m e te r
M a x.
D e vice C urre nt
(I
D
)
M a x.
D e vice
Vo lta g e (V
D
)
M a x.
RF Inp ut P o we r
M a x.
Junctio n Te m p
. (T
J
)
O p e ra ting Te m p
. Ra ng e (T
L
)
Ab s o lu te L im it
150 mA
6 V
+1 8 d B m
+1 5 0 °C
-4 0 °C to +8 5 °C
+1 5 0 °C
Noise Figure (dB)
M a x.
Sto ra g e Te m p
.
T
L
=+25ºC
O p e ra tio n o f this d e vice b e yo nd a ny o ne o f the se lim its m a y
ca use p e rm a ne nt d a m a g e . F o r re lia b le co ntino us o p e ra tio n,
the d e vice vo lta g e a nd curre nt m ust no t e xce e d the m a xim um
o p e ra ting va lue s sp e cifie d in the ta b le o n p a g e o ne .
B ia s C o nd itio ns sho uld a lso sa tisfy the fo llo wing e xp re ssio n:
I
D
V
D
< (T
J
- T
L
) / R
TH
, j-l
Ta ke into a cco unt o ut o f b a nd V S W R p re se nte d b y d e vice s
such a s S AW filte rs to d e te rm ine m a xim um RF inp ut p o we r.
Re fle cte d ha rm o nic le ve ls in sa tura tio n a re sig nifica nt.
OIP
3
vs. Frequency
V
D
= 4.0 V, I
D
= 75 mA
40
+25°C
P
1dB
vs. Frequency
V
D
= 4.0 V, I
D
= 75 mA
20
36
OIP
3
(dBm)
32
28
24
20
0.0
0.5
1.0
T
L
-40°C
18
P
1dB
(dBm)
16
14
+25°C
+85°C
12
10
1.5
2.0
2.5
Frequency (GHz)
3.0
3.5
0.0
0.5
1.0
T
L
1.5
2.0
2.5
Frequency (GHz)
-40°C
+85°C
3.0
3.5
303 Technology Court, Broomfield, CO 80021
Phone: (800) SMI-MMIC
2
http://www.sirenza.com
EDS-100619 Rev G
SGA-6289 DC-4500 MHz Cascadable MMIC Amplifier
Preliminary
|
S
|
vs. Frequency
21
|
S
|
vs. Frequency
11
20
16
|S
21
| (dB)
12
8
4
0
1
V
D
= 4.0 V, I
D
= 75 mA
+25°C
-40°C
+85°C
0
-10
|S
11
| (dB)
-20
-30
V
D
= 4.0 V, I
D
= 75 mA
T
L
T
L
-40
+25°C
-40°C
+85°C
2
3
Frequency (GHz)
4
5
0
1
2
3
Frequency (GHz)
4
5
|
S
|
vs. Frequency
12
|
S
|
vs. Frequency
22
-10
-15
|S
12
| (dB)
-20
-25
V
D
= 4.0 V, I
D
= 75 mA
0
-10
|S
22
| (dB)
V
D
= 4.0 V, I
D
= 75 mA
-20
-30
T
L
-30
0
1
2
3
Frequency (GHz)
4
+25°C
-40°C
+85°C
T
L
-40
+25°C
-40°C
+85°C
5
0
1
2
3
Frequency (GHz)
4
5
V
D
vs. I
D
over Temperature for fixed
V
S
= 8V , R
BIAS
= 51 Ohms *
90
85
+85°C
V
D
vs. Temperature for Constant I
D
= 75 mA
4.6
4.4
V
D
(Volts)
4.4
80
I
D
(mA)
+25°C
4.2
4.0
3.8
3.6
75
-40°C
70
65
60
3.6
3.8
4.0
4.2
-40
-15
V
D
(Volts)
10
35
Temperature (°C)
60
85
* Note: In the applications circuit on page 4, R
BIAS
compensates for voltage and current variation over temperature.
303 Technology Court, Broomfield, CO 80021
Phone: (800) SMI-MMIC
3
http://www.sirenza.com
EDS-100619 Rev G
SGA-6289 DC-4500 MHz Cascadable MMIC Amplifier
Preliminary
Basic Application Circuit
R
BIAS
1 uF
1000
pF
Application Circuit Element Values
Frequency (Mhz)
Reference
Designator
500
850
1950
2400
3500
V
S
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-6289
3
2
C
B
RF out
Recommended Bias Resistor Values for I
D
=75mA
R
BIAS
=( V
S
-V
D
) / I
D
Supply Voltage(V
S
)
R
BIAS
6V
27
8V
51
10 V
82
12 V
110
V
S
R
BIAS
Note: R
BIAS
provides DC bias stability over temperature.
1 uF
1000 pF
Mounting Instructions
1. Solder the copper pad on the backside of the
device package to the ground plane.
2. Use a large ground pad area with many plated
through-holes as shown.
3. We recommend 1 or 2 ounce copper. Measurements
for this data sheet were made on a 31 mil thick FR-4
board with 1 ounce copper on both sides.
A62
L
C
C
D
C
B
C
B
Part Identification Marking
4
4
Pin #
1
Function
RF IN
Description
RF input pin. This pin requires the use
of an external DC blocking capacitor
chosen for the frequency of operation.
Connection to ground. For optimum RF
performance, use via holes as close to
ground leads as possible to reduce lead
inductance.
A62
2
3
A62Z
2
2, 4
3
GND
1
2
3
1
2
3
1
1
3
RF OUT/ RF output and bias pin. DC voltage is
BIAS present on this pin, therefore a DC
blocking capacitor is necessary for
proper operation.
Caution: ESD sensitive
Appropriate precautions in handling, packaging
and testing devices must be observed.
Part Number Ordering Information
Part Number
Reel Size
Devices/Reel
SGA-6289
SGA-6289Z
13"
13"
3000
3000
303 Technology Court, Broomfield, CO 80021
Phone: (800) SMI-MMIC
4
http://www.sirenza.com
EDS-100619 Rev G
SGA-6289 DC-4500 MHz Cascadable MMIC Amplifier
Suggested PCB Pad Layout
Dimensions in inches [millimeters]
Preliminary
Nominal Package Dimensions
Package Type: SOT- 89
Dimensions in inches (millimeters)
Refer to package drawing posted at www.sirenza.com for tolerances
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