MICROTUNE MT1110

M I
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MT1110 RF AMPLIFIER
PRODUCT BRIEF
The MT1110 RF amplifier is designed
for broadband CATV distribution, car
TV applications, and infrastructure
applications.
The Microtune MT1110 radio
frequency (RF) amplifier is a 75Ω
internally matched amplifier
designed for broadband CATV
distribution, car TV applications, and
infrastructure applications.
The MT1110 is built using highperformance silicon-germanium
(SiGe) technology and offers 15 dB
gain with an industry best noise
figure of 3.0 dB. It achieves a thirdorder intercept point of 80 dBmV
while drawing the industry’s lowest
current, 76 mA, from a single 5V
supply.
The MT1110’s Darlington circuit
topology produces high linearity
with very low noise, while
maintaining matched input and
output impedances. Two AC
coupling capacitors, a bias resistor,
and an optional inductor are the only
external components required.
The MT1110 is available in an
SOT-89 package for the extended
industrial and automotive
temperature range of -40°C to
+85°C.
The MT1110 is highly suitable for
applications such as car TV antenna
amplifiers or splitters for car TV
receivers.
APPLICATIONS
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Set-top box
Home gateways
CATV broadband distribution
Cable splitters
Laser drivers
Optical receivers
Car TV antenna amplifiers
Splitters for car TV receivers
Wireless data
PA driver amplifier
IF amplifier
FEATURES
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Cascadable 75Ω gain block
15 dB gain
3 dB noise figure
Unconditionally stable
20 dB input return loss
1 MHz to 1600 MHz 3 dB
bandwidth
Typical OIP3 at 76 mA is
80 dBmV at 850 MHz
Single 5V supply
Adjustable current
consumption
SOT-89 package
Industry standard pin-out for
drop-in compatibility
M I C R O T U N E
MT1110 RF Amplifier
RF SILICON AND SUBSYSTEMS SOLUTIONS
FOR BROADBAND COMMUNICATIONS AND AUTOMOTIVE ELECTRONICS
M T11 10 R F AM PLI FI ER S
PRODUCT BRIEF
AC ELECTRICAL CHARACTERISTICS
PARAMETER
MIN
TYP
Power gain
MAX
15
3 dB gain bandwidth
1
1600
Noise figure
UNIT
-60
dB
-62
MHz
-64
Output = 25 dBmV / Tone
3
dB
79 channels, output = 25 dBmV/tone
-72
dBc
112 channels, output = 25 dBmV/tone
-71
dBc
132 channels, output = 25 dBmV/tone
-70
dBc
79 channels, output = 25 dBmV/tone
-61
dBc
-74
112 channels, output = 25 dBmV/tone
-58
dBc
-76
132 channels, output = 25 dBmV/tone
-53
dBc
79 channels, output = 25 dBmV/tone
-54
dBc
112 channels, output = 25 dBmV/tone
-53
dBc
132 channels, output = 25 dBmV/tone
-52
dBc
79 channels, output = 25 dBmV/tone
-68
dBc
112 channels, output = 25 dBmV/tone
-65
dBc
132 channels, output = 25 dBmV/tone
-63
dBc
131 Ch
112 Ch
79 Ch
-66
CTB (dBc)
Composite triple beat
Composite second order (sum)
-68
-70
-72
-78
Composite second order (difference)
-80
5
105
205
305
405
505
Frequency (MHz)
605
705
805
905
705
805
905
Figure 2 CTB vs. Frequency
Cross modulation
-50
131 Ch
112 Ch
79 Ch
Output = 25 dBmV / Tone
-55
TYPICAL APPLICATION
VCC = 5V
10µF
16V
10 nF
1.2µH
DC block
10 nF
-65
-70
DC block
10 nF
4
1
In
CSO Sum (dBc)
-60
Rbias = 6.8 Ohms
3
-75
Out
VBias = 4.5 V
2
-80
5
105
205
305
405
505
605
Frequency (MHz)
Figure 3 CSO Sum vs. Frequency
20
19
-50
Output = 25 dBmV / Tone
18
17
131 Ch
112 Ch
79 Ch
-55
CSO Difference (dBc)
S21 (dB)
16
15
14
13
12
-60
-65
-70
11
-75
10
0
100
200
300
400
500
600
Frequency (MHz)
700
800
900
1000
-80
Figure 1 Power Gain vs. Frequency
5
105
205
305
405
505
Frequency (MHz)
605
705
805
905
Figure 4 CSO Difference vs. Frequency
Microtune, Inc., 2201 Tenth Street, Plano, TX 75074, USA
Tel: +1-972-673-1600, Fax: +1-972-673-1602, E-mail: [email protected], Web site: www.microtune.com
For a detailed list of design centers, sales offices, and sales representatives, visit our Web site at www.microtune.com.
The information in this document is believed to be accurate and reliable. Microtune assumes no responsibility for any consequences arising from the use of this information, nor from any infringement of patents or
the rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or other rights of Microtune. The information in this publication replaces and supersedes
all information previously supplied, and is subject to change without notice. The customer is responsible for assuring that proper design and operating safeguards are observed to minimize inherent and procedural
hazards. Microtune assumes no responsibility for applications assistance or customer product design.
The devices described in this document are not authorized for use in medical, life-support equipment, or any other application involving a potential risk of severe property or environmental damage, personal
injury, or death without prior express written approval of Microtune. Any such use is understood to be entirely at the user’s risk.
Microtune is a registered trademark of Microtune, Inc. MicroTuner, MicroStreamer, VideoCaster, DataCaster, and the Microtune logo are trademarks of Microtune, Inc. All other trademarks belong to their respective
companies.
Microtune’s products are protected by one or more of the following U.S. patents: DE10011662; GB1026825; ES1026825; DE19628727; DE19904588.7-09; DE348698; FR348698; GB348698; IT348698; DE3821716;
US5,933,946; DE50000802.7-08; DE552624 and additional patents pending or filed.
Entire contents Copyright © 1996 - 2005 Microtune, Inc.
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October 2005