SGA-4486(Z)
SGA-4486(Z)
DC to
4500MHz,
Cascadable
SiGe HBT
MMIC Amplifier
DC to 4500MHz, CASCADABLE SiGe HBT
MMIC AMPLIFIER
RFMD Green, RoHS Compliant, Pb-Free (Z Part Number)
Package: SOT-86
Product Description
Features
The SGA-4486 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.
Gain & Return Loss vs. Frequency
VD = 3.2V, ID = 45mA (Typ.)
GaAs HBT
0
Gain (dB)
12
-20
OR
6
GaAs pHEMT
-10
IRL
-30
„
Return Loss (dB)
18
InGaP HBT
SiGe HBT
„
„
GAIN
GaAs MESFET
9
„
„
24
Si BiCMOS
„
High Gain: 15.9dB 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
Si CMOS
0
Si BJT
-40
0
1
GaN HEMT
2
3
4
5
Frequency (GHz)
RF MEMS
Parameter
Small Signal Gain
Min.
17.0
Output Power at 1dB Compression
Output Third Intercept Point
Specification
Typ.
18.5
15.9
14.4
15.4
12.8
28.2
26.7
4500
Max.
20.5
Unit
dB
dB
dB
dBm
dBm
dBm
dBm
MHz
Condition
850MHz
1950MHz
2400MHz
850MHz
1950MHz
850MHz
1950MHz
>9dB
Bandwidth Determined by Return
Loss (>9dB)
Input Return Loss
21.8
dB
1950MHz
Output Return Loss
22.5
dB
1950MHz
Noise Figure
2.8
dB
1950MHz
Device Operating Voltage
2.9
3.2
3.5
V
Device Operating Current
41
45
49
mA
Thermal Resistance
97
°C/W
(Junction - Lead)
Test Conditions: VS =8V, ID =45mA Typ., OIP3 Tone Spacing=1MHz, POUT per tone=-5dBm, RBIAS =110Ω, TL =25°C, ZS =ZL =50Ω
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-100643 Rev F
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-4486(Z)
Absolute Maximum Ratings
Parameter
Rating
Unit
Max Device Current (ID)
90
mA
Max Device Voltage (VD)
5
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
OIP3 vs. Frequency
P1dB vs. Frequency
VD=3.2 V, ID= 45 mA (Typ.)
VD= 3.2 V, ID= 45 mA (Typ.)
35
18
30
15
P1dB (dBm)
OIP3 (dBm)
Small Signal Gain
dB
20.6
19.9
18.5
15.9
Output Third Order Intercept Point
dBm
28.0
28.2
26.7
Output Power at 1dB Compression
dBm
15.0
15.4
12.8
Input Return Loss
dB
16.9
14.2
15.4
21.8
Output Return Loss
dB
20.6
16.7
26.5
22.5
Reverse Isolation
dB
23.1
23.0
22.7
21.2
Noise Figure
dB
2.6
2.7
2.8
Test Conditions: VS =8V, ID =45mA Typ., OIP3 Tone Spacing=1MHz, POUT per tone=-5dBm, RBIAS=110Ω, TL =25°C, ZS =ZL =50Ω
25
2400
MHz
3500
MHz
14.4
26.0
11.5
31.3
18.1
20.4
3.2
12.2
13.9
24.3
17.7
12
9
20
TL=+25ºC
TL=+25ºC
6
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= 3.2 V, ID= 45 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-100643 Rev F
SGA-4486(Z)
Typical RF Performance Over Temperature ( Bias: VD= 3.2 V, ID= 45 mA (Typ.) )
|S21| vs. Frequency
24
-10
S11(dB)
S21(dB)
18
12
-20
-30
6
+25°C
-40°C
+85°C
TL
0
0
1
2
3
Frequency (GHz)
4
+25°C
-40°C
+85°C
TL
-40
0
5
|S12| vs. Frequency
-10
1
2
3
Frequency (GHz)
4
5
|S22| vs. Frequency
0
-10
S22(dB)
-15
S12(dB)
|S11| vs. Frequency
0
-20
-20
-30
-25
+25°C
-40°C
+85°C
TL
-30
0
EDS-100643 Rev F
1
2
3
Frequency (GHz)
4
+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-4486(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.
Suggested Pad Layout
Package Drawing
Dimensions in inches (millimeters)
Refer to drawing posted at www.rfmd.com for tolerances.
4 of 6
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-100643 Rev F
SGA-4486(Z)
Application Schematic
pp
Frequency (Mhz)
VS
R BIAS
1 uF
CD
1000
pF
LC
1 SGA-4486 3
RF out
CB
2
CB
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
Recommended Bias Resistor Values for ID=45mA
RBIAS=( VS-VD ) / ID
4
RF in
Reference
Designator
Supply Voltage(VS)
6V
RBIAS
62
8V
110
10 V
150
12 V
200
Note: RBIAS provides DC bias stability over temperature.
Evaluation Board Layout
VS
1 uF
RBIAS
A44
CB
EDS-100643 Rev F
LC
1000 pF
CD
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.
5 of 6
SGA-4486(Z)
Part Identification
3
4
A44
3
2
4
1
44Z
2
1
Ordering Information
6 of 6
Part Number
Reel Size
Devices/Reel
SGA-4486
13"
3000
SGA-4486Z
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-100643 Rev F