10.0-21.0 GHz GaAs MMIC
Buffer Amplifier, QFN
Excellent Transmit LO/Output Buffer Stage
3x3mm, QFN
17.0 dB Small Signal Gain
+20.0 dBm Psat
+32 dBm Output IP3
4.5 dB Noise Figure
Variable Gain with Adjustable Bias
100% RF, DC and Output Power Testing
Features
Absolute Maximum Ratings
Supply Voltage (Vd)
Supply Current (Id1)
Gate Bias Voltage (Vg)
Input Power (Pin)
Storage Temperature (Tstg)
Operating Temperature (Ta)
Channel Temperature (Tch)
ESD Min. - Machine Model (MM)
ESD Min. - Human Body Model (HBM)
MSL Level
+4.3 VDC
180 mA
0V
+20.0 dBm
-65 to +165 ºC
-55 to +85 ºC
150 ºC
Class A
Class 1A
MSL1
Page 1 of 6
Channel temperature affects a device's MTTF. It is
recommended to keep channel temperature as low as
possible for maximum life.
Electrical Characteristics (Ambient Temperature T = 25 oC)
Parameter
Frequency Range (f)
Input Return Loss (S11)
Output Return Loss (S22)
Small Signal Gain (S21)
Gain Flatness ( S21)
Reverse Isolation (S12)
Noise Figure
Output Power for 1dB Compression (P1dB)
Saturated Output Power (Psat)
Output Third Order Intercept
Drain Bias Voltage (Vd)
Gate Bias Voltage (Vg)
Supply Current (Id) (Vd=4.0V, Vg2=-0.5V Typical)
Units
GHz
dB
dB
dB
dB
dB
dB
dBm
dBm
dBm
VDC
VDC
mA
Min.
10.0
-
-
-
-
-
-
-
-
-
-
-1.0
-
Typ.
-
12.0
12.0
17.0
+/-2.0
65.0
4.5
+18.0
+20.0
+32.0
+4.0
-0.23
100
Max.
21.0
-
-
-
-
-
-
-
-
-
+4.0
-0.1
130
B1008-QT
Mimix Broadband’s two stage 10.0-21.0 GHz GaAs
MMIC buffer amplifier has a small signal gain of 17.0
dB with a +18.0 dBm P1dB output compression point.
The device also provides variable gain regulation with
adjustable bias. The device is ideally suited as an LO or
RF buffer stage with broadband performance at a very
low cost. The device comes in an RoHS compliant
3x3mm QFN surface mount package offering excellent
RF and thermal properties. This device is well suited for
Microwave and Millimeter-wave Point-to-Point Radio,
LMDS, SATCOM and VSAT applications.
General Description
Mimix Broadband, Inc., 10795 Rockley Rd., Houston, Texas 77099
Tel: 281.988.4600 Fax: 281.988.4615 mimixbroadband.com
Characteristic Data and Specifications are subject to change without notice. ©2010 Mimix Broadband, Inc.
Export of this item may require appropriate export licensing from the U.S. Government. In purchasing these parts, U.S. Domestic customers accept
their obligation to be compliant with U.S. Export Laws.
March 2010 - Rev 13-Mar-10
Buffer Amplifier Measurements
Page 2 of 6
B1008-QT
10.0-21.0 GHz GaAs MMIC
Buffer Amplifier, QFN
Mimix Broadband, Inc., 10795 Rockley Rd., Houston, Texas 77099
Tel: 281.988.4600 Fax: 281.988.4615 mimixbroadband.com
Characteristic Data and Specifications are subject to change without notice. ©2010 Mimix Broadband, Inc.
Export of this item may require appropriate export licensing from the U.S. Government. In purchasing these parts, U.S. Domestic customers accept
their obligation to be compliant with U.S. Export Laws.
March 2010 - Rev 13-Mar-10
XB1008-QT, Vd = 4V, Id = 100 mA: Input Return Loss vs Frequency
-20
-18
-16
-14
-12
-10
-8
-6
-4
-2
0
5 7 9 11 13 15 17 19 21 23 25
Frequency (GHz)
S11 (dB)
XB1008-QT, Vd = 4V, Id = 100 mA: Small Signal Gain vs Frequency
0
2
4
6
8
10
12
14
16
18
20
5 7 9 11 13 15 17 19 21 23 25
Frequency (GHz)
S21 (dB)
XB1008-QT, Vd = 4V, Id = 100 mA: Output Return Loss vs Frequency
-25
-20
-15
-10
-5
0
5 7 9 11 13 15 17 19 21 23 25
Frequency (GHz)
S22 (dB)
XB1008-QT: OIP3 vs Frequency. 4V, 90 mA, Pin = -15dBm
10
15
20
25
30
35
10 11 12 13 14 15 16 17 18 19 20 21
Frequency (GHz)
OIP3 (dBm)
XB1008-QT: OIP3 vs Frequency. 4V, 20 - 100mA, Pin = -15dBm
0
5
10
15
20
25
30
35
10 11 12 13 14 15 16 17 18 19 20 21
Frequency (GHz)
OIP3 (dBm)
Id av(mA)=20
Id av(mA)=30
Id av(mA)=40
Id av(mA)=50
Id av(mA)=60
Id av(mA)=70
Id av(mA)=80
Id av(mA)=90
Id av(mA)=100
XB1008-QT: Output Power. Vd = 4V, Id = 100mA
0
2
4
6
8
10
12
14
16
18
20
22
-14 -12 -10 -8 -6 -4 -2 0 2 4 6 8 10 12 14
Pin (dBm)
Power out (dBm)
11 GHz
12 GHz
13 GHz
14 GHz
15 GHz
16 GHz
17 GHz
18 GHz
19 GHz
20 GHz
21 GHz
Buffer Amplifier Measurements (cont.)
Page 3 of 6
B1008-QT
10.0-21.0 GHz GaAs MMIC
Buffer Amplifier, QFN
Mimix Broadband, Inc., 10795 Rockley Rd., Houston, Texas 77099
Tel: 281.988.4600 Fax: 281.988.4615 mimixbroadband.com
Characteristic Data and Specifications are subject to change without notice. ©2010 Mimix Broadband, Inc.
Export of this item may require appropriate export licensing from the U.S. Government. In purchasing these parts, U.S. Domestic customers accept
their obligation to be compliant with U.S. Export Laws.
March 2010 - Rev 13-Mar-10
XB1008-QT: Power out vs Frequency. Vd = 4V and Id = 100mA
0
2
4
6
8
10
12
14
16
18
20
22
8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
Freq (GHz)
Power out (dBm)
Pin = -10 dBm
Pin = -8 dBm
Pin = -6 dBm
Pin = -4 dBm
Pin = -2 dBm
Pin = 0 dBm
Pin = 2 dBm
Pin = 4 dBm
Pin = 6 dBm
Pin = 8 dBm
Pin = 10 dBm
B1008-QT
Page 4 of 6
Package Dimensions / Layout
Functional Block Diagram
Pin Designations
Note: All unused GND pins should be tied to center ground on application board
for best thermal conductivity.
Pin Number
1-2
3
4
5
6-9
10
11-12
13
14-16
Pin Name
GND
RF In
GND
VG
GND
RF Out
GND
VD
GND
Pin Function
Ground
RF Input
Ground
Gate Bias
Ground
RF Output
Ground
Drain Bias
Ground
Nominal Value
-0.5V
4.5V, 130 mA
10.0-21.0 GHz GaAs MMIC
Buffer Amplifier, QFN
Mimix Broadband, Inc., 10795 Rockley Rd., Houston, Texas 77099
Tel: 281.988.4600 Fax: 281.988.4615 mimixbroadband.com
Characteristic Data and Specifications are subject to change without notice. ©2010 Mimix Broadband, Inc.
Export of this item may require appropriate export licensing from the U.S. Government. In purchasing these parts, U.S. Domestic customers accept
their obligation to be compliant with U.S. Export Laws.
March 2010 - Rev 13-Mar-10
1
2
3
4
1
6
1
5
1
4
1
3
12
11
10
9
5 6 7 8
RF In
VG gnd
RF Out
gnd
gnd
gnd gnd
gnd
gnd
gnd
gnd gnd gnd VD
gnd
B1008-QT
Page 5 of 6
App Note [1] Biasing - The device provides variable gain with adjustable bias regulation. For optimum linearity performance, it is recommended
to bias this device at Vd=4V with Id=90 mA. It is also recommended to use active biasing to control the drain currents because this gives the most
reproducible results over temperature or RF level variations. Depending on the supply voltage available and the power dissipation constraints, the
bias circuit may be a single transistor or a low power operational amplifier, with a low value resistor in series with the drain supply used to sense the
current. The gate of the pHEMT is controlled to maintain correct drain current and thus drain voltage. The typical gate voltage needed to do this is
-0.5V. Typically the gate is protected with Silicon diodes to limit the applied voltage. Also, make sure to sequence the applied voltage to ensure
negative gate bias is available before applying the positive drain supply.
MTTF Graphs
These numbers were calculated based on accelerated life test information and thermal model analysis received from the fabricating foundry.
10.0-21.0 GHz GaAs MMIC
Buffer Amplifier, QFN
XB1008-QT-0G00: MTTF hours vs. Package Base Temperature
1.0E+03
1.0E+04
1.0E+05
1.0E+06
1.0E+07
1.0E+08
1.0E+09
1.0E+10
1.0E+11
1.0E+12
1.0E+13
1.0E+14
1.0E+15
20 30 40 50 60 70 80 90 100 110 120
Package Base Temp (ºC)
MTTF (hours)
Vdd = 4 V, Idd = 100 mA
Vdd = 4 V, Idd = 130 mA
XB1008-QT-0G00: Tch (max) vs. Package Base Temperature
60
80
100
120
140
160
180
200
220
20 30 40 50 60 70 80 90 100 110 120
Package Base Temp (ºC)
Tch_max (ºC)
Vdd = 4 V, Idd = 100 mA
Vdd = 4 V, Idd = 130 mA
Mimix Broadband, Inc., 10795 Rockley Rd., Houston, Texas 77099
Tel: 281.988.4600 Fax: 281.988.4615 mimixbroadband.com
Characteristic Data and Specifications are subject to change without notice. ©2010 Mimix Broadband, Inc.
Export of this item may require appropriate export licensing from the U.S. Government. In purchasing these parts, U.S. Domestic customers accept
their obligation to be compliant with U.S. Export Laws.
March 2010 - Rev 13-Mar-10
B1008-QT
Page 6 of 6
10.0-21.0 GHz GaAs MMIC
Buffer Amplifier, QFN
Life Support Policy - Mimix Broadband's products are not authorized for use as critical components in life support devices or systems
without the express written approval of the President and General Counsel of Mimix Broadband. As used herein: (1) Life support devices or
systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and whose failure to
perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a
significant injury to the user. (2) A critical component is any component of a life support device or system whose failure to perform can be
reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness.
Package Attachment - This packaged product from Mimix Broadband is provided as a rugged surface mount package compatible with high
volume solder installation. Vacuum tools or other suitable pick and place equipment may be used to pick and place this part. Care should be
taken to ensure that there are no voids or gaps in the solder connection so that good RF, DC and ground connections are maintained. Voids
or gaps can eventually lead not only to RF performance degradation, but reduced reliability and life of the product due to thermal stress.
Mimix Lead-Free RoHS Compliant Program - Mimix has an active program in place to meet customer and governmental requirements for
eliminating lead (Pb) and other environmentally hazardous materials from our products. All Mimix RoHS compliant components are form, fit
and functional replacements for their non-RoHS equivalents. Lead plating of our RoHS compliant parts is 100% matte tin (Sn) over copper
alloy and is backwards compatible with current standard SnPb low-temperature reflow processes as well as higher temperature (260°C
reflow) “Pb Free” processes.
Part Number for Ordering Description
XB1008-QT-0G00 Matte Tin plated RoHS compliant 3x3 16L QFN surface mount package in bulk quantity
XB1008-QT-0G0T Matte Tin plated RoHS compliant 3x3 16L QFN surface mount package in tape and reel
XB1008-QT-EV1 XB1008-QT evaluation board
Handling and Assembly Information
CAUTION! - Mimix Broadband MMIC Products contain gallium arsenide (GaAs) which can be hazardous to the human body and the
environment. For safety, observe the following procedures:
• Do not ingest.
• Do not alter the form of this product into a gas, powder, or liquid through burning, crushing, or chemical processing as these by-
products are dangerous to the human body if inhaled, ingested, or swallowed.
• Observe government laws and company regulations when discarding this product. This product must be discarded in accordance with
methods specified by applicable hazardous waste procedures.
Typical Reflow Profiles
Reflow Profile
Ramp Up Rate
Activation Time and Temperature
Time Above Melting Point
Max Peak Temperature
Time Within 5 ºC of Peak
Ramp Down Rate
SnPb
3-4 ºC/sec
60-120 sec @ 140-160 ºC
60-150 sec
240 ºC
10-20 sec
4-6 ºC/sec
Pb Free
3-4 ºC/sec
60-180 sec @ 170-200 ºC
60-150 sec
265 ºC
10-20 sec
4-6 ºC/sec
Factory Automation and Identification
Mimix
Designator
-QT
Package
Type
QFN (3x3mm)
P1 Component
Pitch
8mm
P0 Hole
Pitch
4mm
W Tape
Width
12mm
Number of
leads offered
16
Reel
Diameter
329mm (13in)
Units
per Reel
2000
Component Orientation: Parts are to be oriented with the PIN 1 closest to the tape's round sprocket holes on the tape’s trailing edge.
Note: Tape and Reel packaging is ordered with a -000T suffix. Package is available in 500 unit reels through designated sales channels.
Minimum order quantities should be discussed with your local sales representative.
Ordering Information
Caution: ESD Sensitive
Appropriate precautions in handling, packaging
and testing devices must be observed.
Proper ESD procedures should be followed when handling this device.
Mimix Broadband, Inc., 10795 Rockley Rd., Houston, Texas 77099
Tel: 281.988.4600 Fax: 281.988.4615 mimixbroadband.com
Characteristic Data and Specifications are subject to change without notice. ©2010 Mimix Broadband, Inc.
Export of this item may require appropriate export licensing from the U.S. Government. In purchasing these parts, U.S. Domestic customers accept
their obligation to be compliant with U.S. Export Laws.
March 2010 - Rev 13-Mar-10
