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RF SILICON AND SUBSYSTEMS SOLUTIONS FOR BROADBAND COMMUNICATIONS AND AUTOMOTIVE ELECTRONICS
MICROTUNERTM 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 MicroTunerTM MT2011 is a fully integrated single-chip tuner, with functional blocks specifically designed to ease implementation of highperformance digital OpenCableTM settop 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 imagereject 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 dualfunction 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, DVBC, DOCSIS(R), EuroDOCSISTM, 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
PARAMETER 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 MIN 48 30 3.15 4.75 3.3 5.0 TYP MAX 1000 57 3.45 5.25 15 125 UNIT MHz MHz V V mVp-p C kHz
TUNER ELECTRICAL CHARACTERISTICS
PARAMETER 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 MIN TYP MAX UNIT
ABSOLUTE MAXIMUM RATINGS
PARAMETER Supply voltage, +3.3 V Supply voltage, +5 V Storage temperature range Lead Free solder temperature (5 seconds, 3 reps.) -50 MIN MAX 3.6 6 +150 +260 UNIT 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 10th 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 (c) 1996 - 2008 Microtune, Inc. 062007
MT2011PB-00070 -- Rev 1.0
January 2008

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