RF SILICON AND SUBSYSTEMS SOLUTIONS
FOR BROADBAND COMMUNICATIONS AND AUTOMOTIVE ELECTRONICS
MICROTUNER™ MT2011
SINGLE-CHIP BROADBAND
TUNER
PRODUCT BRIEF
The MicroTuner MT2011 is a fully
integrated single-chip tuner, optimized
for digital OpenCable compliant STB
applications.
MT2011 Single-Chip Broadband Tuner
The MicroTuner™ MT2011 is a fully
integrated single-chip tuner, with
functional blocks specifically designed
to ease implementation of high-
performance digital OpenCable™ set-
top boxes.
The MT2011 is a dual-conversion
tuner design which requires no
external tracking filters. This
eliminates the need for manual
alignments and simplifies its
deployment on the production line
where consistent high quality and
reliability are key factors. The device
maintains its controlled impedance
across the entire input spectrum and
exhibits good selectivity and sensitivity
and low in-band emissions. Its low
phase noise makes it an excellent
choice for digital set top box
applications.
The high level of circuit block
integration in the MT2011 reduces the
number of external components
required for a fully functional design,
thereby lowering the overall solution
cost. It includes a low noise amplifier
(LNA) in the front, a Forward Data
Channel (FDC) amplifier and an
intermediate frequency (IF) buffer
amplifier at the back-end. An on-chip
System Reference Oscillator (SRO)
output with selectable sub-multiples of
1, 2, or 4 can drive an additional tuner
or IC in a multi-tuner application. A
high first IF followed by an image-
reject mixer gives the MT2011
unparalleled performance over its
entire operating range from 48 MHz to
1 GHz.
All functions of the MT2011 are
controlled over a two-wire serial bus.
This includes the ability to readback
the status registers of the tuner as
well as the on-board die temperature
sensor.
APPLICATIONS
•
•
•
•
Advanced digital set-top boxes
(STB)
Home gateways
Cable modems
HDTV
FEATURES
•
•
1 GHz bandwidth
Excellent linearity performance
in severely sloped input
conditions per SCTE 40
network requirements
Ease of multi-tuner front-end
implementations
Dual-conversion architecture for
consistent high performance
with no manual alignments
Proven performance in dual-
function digital STB designs
Elimination of the need for the
28V to 33V supplies typically
required by traditional tuners
3.3V and 5V serial bus
compatible
Minimal external components
Software shutdown mode
Intermediate frequency (IF)
output fully compatible with
demodulators for DAVIC, DVB-
C, DOCSIS®, EuroDOCSIS™,
and other standards
Small 8mm x 8mm 56-lead QFN
package
Usable in conjunction with
Microtune’s upstream amplifiers
to create a complete RF front
end for bi-directional STB
applications
•
•
PRELIMINARY
•
•
•
•
•
•
•
•
MT2011 SINGL E-C HIP BRO ADB AND TU N ER
PRODUCT BRIEF
RECOMMENDED OPERATING CONDITIONS
P
ARAMETER
Input frequency range
Second intermediate center
frequency (programmable)
Supply voltage, +3.3 V
Supply voltage, +5 V
Supply voltage ripple
Operating junction temperature
VGA differential output load
impedance
Serial control clock
DNC differential load impedance
800
300
400
M
IN
48
30
3.15
4.75
3.3
5.0
T
YP
M
AX
1000
57
3.45
5.25
15
125
U
NIT
MHz
MHz
V
V
mVp-p
°C
Ω
kHz
Ω
TUNER ELECTRICAL CHARACTERISTICS
P
ARAMETER
Power Supply
Active current, 3.3 V
Active current, 5 V
RF Signal Path
Input frequency range
Noise figure (DNC Out)
Terminal voltage gain
(DNC Out)
RF AGC range (0 to 3.3 V)
1
Image rejection
LO phase noise (1 kHz)
LO phase noise (10 kHz)
LO phase noise (100 kHz)
48 MHz to 860 MHz
39
30
75
-75
-85
-105
-104
2
30
1.0
<12.5
39
70
1
12
130
>51.5
57
48
1000
10.5
MHz
dB
dB
dB
dBc
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
kHz
MHz
Vp-p
dB
Db
MHz
dB
dB
82
270
mA
mA
M
IN
T
YP
M
AX
U
NIT
ABSOLUTE MAXIMUM RATINGS
P
ARAMETER
Supply voltage, +3.3 V
Supply voltage, +5 V
Storage temperature range
Lead Free solder temperature
(5 seconds, 3 reps.)
-50
M
IN
M
AX
3.6
6
+150
+260
U
NIT
V
V
°C
°C
LO phase noise (100 kHz)
860 MHz to 1000 MHz
LO step size
IF VGA
Frequency range
Output voltage swing
Terminal voltage gain,
VGACTRL = 0.7 to 3.3 V
IF AGC range
FDC
DNCVCCrf
UPCOUTn
UPCOUTp
DNCINn
DNCINp
AGCCTRL
UPCVCC
UPCVCC
RFinn
Frequency Range
Gain
Noise Figure
42
41
40
39
38
37
PINSh
PINSe
DNCOUTp
DNCOUTn
IFVCC
GND
GND
GND
50
GND
NC
45
44
48
55
54
53
52
51
49
PRELIMINARY
56
47
46
43
RFinp
GND
GND
NC
FDCin
FDCVcc
FDCout
LO1tcm1
LO1tcm2
LO1reg
VCCLO1
LO1LPF
GPO
A0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
1
Note: With Microtune attenuator design
DNC Output
1st IF Saw
LO2tcm
LO2reg
VCCLO2
LO2LPF
GND
AFCin
VGAINp
VGAINn
VGACTRL
2nd IF Saw
Exposed die paddle
on package bottom
36
35
34
33
32
31
30
29
48-1000 MHz In
PIN Diode
Atten
Input Balun
VGA Output
VGACTRL
AGCCTRL
PIN Diode
Controller
PLL
PLL
Die Temp
Sensor
3-bit
AD
AFC In/Temp
Out
FDC
22
20
16
23
24
25
26
27
18
19
28
15
17
21
Charge
Pump
Charge
Pump
Serial
Bus
Clock
Data
DVCCLO1
SROOUT
DVCCLO2
A1
SerVCC
VGAOUTn
SerData
VGAVCC
VGAOUTp
SROVCC
VGAVCC
XTALn
SerCLK
XTALp
OOB
Tuner
GPO
MT2011 Pin Diagram
Loop
Filter
Buffered
Reference
Output
Loop
Filter
MT2011 Block Diagram
Microtune, Inc., 2201 10
th
Street, Plano, TX 75074, USA
Tel: +1-972-673-1600, Fax: +1-972-673-1602, E-mail: sales@microtune.com, Web site:
www.microtune.com
For a detailed list of office locations, sales offices, and sales representatives, visit our web site at
www.microtune.com
Microtune believes that the information in this document is accurate and reliable, as of the date of this document. 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, ClearTune, 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: 5,625,325; 5,648,744; 5,717,730; 5,737,035; 5,739,730; 5,805,988; 5,847,612; 6,100,761; 6,104,242; 6,163,684; 6,169,569;
6,172,378; 6,177,964; 6,211,745; 6,218,899; 6,268,778; 6,310,387; 6,323,736; 6,355,537; 6,429,502; 6,462,327; 6,535,068; 6,580,313; 6,608,522; 6,631,257; 6,714,776; 6,725,463; 6,744,308; 6,771,124;
6,784,945; 6,804,099; 6,888,406; 6,891,435; 6,906,594; 6,909,886; 6,919,774; 6,920,182; 6,922,556; 6,963,478; 6,973,288; 6,993,310; 7,035,614; 7,078,960; 7,079,195; 7,164,899; 7,171,176; 7,184,724;
7,190,942; 7,190,943; D469,742 and additional patents pending or filed.
Entire contents Copyright © 1996 - 2008 Microtune, Inc.
062007
MT2011PB-00070 — Rev 1.0
January 2008
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