SGA-3486(Z)
SGA-3486(Z)
DC to
5000MHz,
Cascadable
SiGe HBT
MMIC Amplifier
DC to 5000MHz, CASCADABLE SiGe HBT
MMIC AMPLIFIER
RFMD Green, RoHS Compliant, Pb-Free (Z Part Number)
Package: SOT-86
Product Description
Features
The SGA-3486 is a high performance SiGe HBT MMIC Amplifier. A Darlington configuration featuring one micron emitters provides high FT and
excellent thermal performance. 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 two DC-blocking capacitors, a bias resistor, and an
optional RF choke are required for operation.
24
GaAs MESFET
„
GAIN
InGaP HBT
18
Gain (dB)
9
-10
IRL
12
-20
ORL
6
GaAs pHEMT
Si CMOS
„
„
0
-30
0
Si BJT
Return Loss (dB)
GaAs HBT
SiGe HBT
„
„
Gain & Return Loss vs. Frequency
VD= 2.9 V, ID= 35 mA (Typ.)
Si BiCMOS
„
High Gain: 18.0dB at
1950MHz
Cascadable 50Ω
Operates from Single Supply
Low Thermal Resistance
Package
Applications
Optimum Technology
Matching® Applied
SiGe BiCMOS
„
„
PA Driver Amplifier
Cellular, PCS, GSM, UMTS
IF Amplifier
Wireless Data, Satellite
-40
0
1
GaN HEMT
2
3
Frequency (GHz)
4
5
RF MEMS
Parameter
Small Signal Gain
Min.
19.0
Output Power at 1dB Compression
Output Third Intercept Point
Bandwidth Determined by Return
Loss
Input Return Loss
Output Return Loss
Noise Figure
Device Operating Voltage
Device Operating Current
Thermal Resistance
(Junction - Lead)
2.6
31
Specification
Typ.
21.0
18.0
16.5
12.7
12.5
24.6
26.9
5000
12.2
16.3
3.2
2.9
35
97
Max.
23.0
3.2
39
Unit
Condition
dB
dB
dB
dBm
dBm
dBm
dBm
MHz
850MHz
1950MHz
2400MHz
850MHz
1950MHz
850MHz
1950MHz
>8dB
dB
dB
dB
V
mA
°C/W
1950MHz
1950MHz
1950MHz
RF MICRO DEVICES®, RFMD®, Optimum Technology Matching®, Enabling Wireless Connectivity™, PowerStar®, POLARIS™ TOTAL RADIO™ and UltimateBlue™ are trademarks of RFMD, LLC. BLUETOOTH is a trademark owned by Bluetooth SIG, Inc., U.S.A. and licensed for use by RFMD. All other trade names, trademarks and registered trademarks are the property of their respective owners. ©2006, RF Micro Devices, Inc.
EDS-100635 Rev G
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com.
1 of 6
SGA-3486(Z)
Absolute Maximum Ratings
Parameter
Rating
Unit
Max Device Current (ID)
70
mA
Max Device Voltage (VD)
4
V
Max RF Input Power
+18
dBm
Max Junction Temp (TJ)
+150
°C
-40 to +85
°C
+150
°C
Operating Temp Range (TL)
Max Storage Temp
Caution! ESD sensitive device.
Exceeding any one or a combination of the Absolute Maximum Rating conditions may
cause permanent damage to the device. Extended application of Absolute Maximum
Rating conditions to the device may reduce device reliability. Specified typical performance or functional operation of the device under Absolute Maximum Rating conditions is not implied.
RoHS status based on EUDirective2002/95/EC (at time of this document revision).
Operation of this device beyond any one of these limits may cause permanent damage. For reliable continuous 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:
IDVD <(TJ -TL)/RTH, j-l
Typical Performance at Key Operating Frequencies
Parameter
Unit
The information in this publication is believed to be accurate and reliable. However, no
responsibility is assumed by RF Micro Devices, Inc. ("RFMD") for its use, nor for any
infringement of patents, or other rights of third parties, resulting from its use. No
license is granted by implication or otherwise under any patent or patent rights of
RFMD. RFMD reserves the right to change component circuitry, recommended application circuitry and specifications at any time without prior notice.
100
MHz
500
MHz
850
MHz
1950
MHz
Small Signal Gain
dB
23.2
22.4
21.0
18.0
Output Third Order Intercept Point
dBm
25.4
24.6
26.9
Output Power at 1dB Compression
dBm
12.3
12.7
12.5
Input Return Loss
dB
29.2
15.7
12.9
12.2
Output Return Loss
dB
27.2
20.4
18.1
16.3
Reverse Isolation
dB
24.9
24.8
24.4
22.9
Noise Figure
dB
2.8
2.8
3.2
Test Conditions: VS =5V, ID =35mA Typ., OIP3 Tone Spacing=1MHz, POUT per tone=-5dBm, RBIAS=62Ω, TL =25°C, ZS =ZL =50Ω
OIP3 vs. Frequency
P1dB vs. Frequency
VD= 2.9 V, ID= 35 mA (Typ.)
VD= 2.9 V, ID= 35 mA (Typ.)
3500
MHz
16.5
28.1
12.4
10.8
16.1
22.2
3.4
14.2
9.4
16.1
19.9
15
35
13
P1dB (dBm)
30
OIP3 (dBm)
2400
MHz
25
20
11
9
7
TL=+25ºC
TL=+25ºC
5
15
0
0.5
1
1.5
2
Frequency (GHz)
2.5
3
0
0.5
1
1.5
2
Frequency (GHz)
2.5
3
Noise Figure vs. Frequency
VD= 2.9 V, ID= 35 mA (Typ.)
Noise Figure (dB)
5
4
3
2
1
TL=+25ºC
0
0
2 of 6
0.5
1
1.5
2
Frequency (GHz)
2.5
3
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com.
EDS-100635 Rev G
SGA-3486(Z)
|S21| vs. Frequency
|S11| vs. Frequency
VD= 2.9 V, ID= 35 mA (Typ.)
24
18
-10
S11(dB)
S21(dB)
VD= 2.9 V, ID= 35 mA (Typ.)
0
12
6
0
0
1
2
3
Frequency (GHz)
-30
+25°C
-40°C
+85°C
TL
4
-20
-40
5
0
1
|S12| vs. Frequency
4
5
VD= 2.9 V, ID= 35 mA (Typ.)
0
-10
S22(dB)
-15
S12(dB)
2
3
Frequency (GHz)
|S22| vs. Frequency
VD= 2.9 V, ID= 35 mA (Typ.)
-10
+25°C
-40°C
+85°C
TL
-20
-25
-30
0
EDS-100635 Rev G
1
2
3
Frequency (GHz)
-30
+25°C
-40°C
+85°C
TL
4
-20
+25°C
-40°C
+85°C
TL
-40
5
0
1
2
3
Frequency (GHz)
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com.
4
5
3 of 6
SGA-3486(Z)
Pin
1
2, 4
Function
RF IN
GND
3
RF OUT/BIAS
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.
RF output and bias pin. DC voltage is present on this pin, therefor a DC-blocking capacitor is necessary for proper operation.
Application Schematic
Frequency (Mhz)
VS
R BIAS
1 uF
CD
1000
pF
Reference
Designator
500
850
1950
2400
3500
CB
220 pF
100 pF
68 pF
56 pF
39 pF
CD
100 pF
68 pF
22 pF
22 pF
15 pF
LC
68 nH
33 nH
22 nH
18 nH
15 nH
LC
Recommended Bias Resistor Values for ID=35mA
RBIAS=( VS-VD ) / ID
4
1 SGA-3486 3
RF in
CB
RF out
CB
2
Supply Voltage(VS)
5V
RBIAS
68
8V
150
10 V
200
12 V
270
Note: RBIAS provides DC bias stability over temperature.
Evaluation Board Layout
VS
1 uF
RBIAS
1000 pF
CD
A34
CB
4 of 6
LC
CB
Mounting Instructions
1. Use a large ground pad area under device pins 2
and 4 with many plated through-holes as shown.
2. 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.
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com.
EDS-100635 Rev G
SGA-3486(Z)
Suggested Pad Layout
Package Drawing
Dimensions in inches (millimeters)
Refer to drawing posted at www.rfmd.com for tolerances.
EDS-100635 Rev G
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com.
5 of 6
SGA-3486(Z)
Part Identification
3
4
A34
3
2
4
1
34Z
2
1
Ordering Information
6 of 6
Part Number
Reel Size
Devices/Reel
SGA-3486
13"
3000
SGA-3486Z
13"
3000
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com.
EDS-100635 Rev G