MT2011 MICROTUNE | Alldatasheet
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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. 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
MT2011 Single-Chip Broadband Tuner
MT2011 SINGLE-CHIP BROADBAND TUNER PRODUCT BRIEF MT2011PB-00070 — Rev 1.0 January 2008 P R E L I M I N A R Y 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 a ssumes 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 g ranted 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 n otice. 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 assis tance 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 M icrotune 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; 7,190,942; 7,190,943; D469,742 and additional patents pending or filed. Entire contents Copyright © 1996 - 2008 Microtune, Inc. 062007 RECOMMENDED OPERATING CONDITIONS PARAMETER M IN T YP M AX U NIT Input frequency range 48 1000 MHz Second intermediate center frequency (programmable) 30 57 MHz Supply voltage, +3.3 V 3.15 3.3 3.45 V Supply voltage, +5 V 4.75 5.0 5.25 V Supply voltage ripple 15 mVp-p Operating junction temperature 125 °C VGA differential output load impedance 300 Ω Serial control clock 400 kHz DNC differential load impedance 800 Ω ABSOLUTE MAXIMUM RATINGS PARAMETER M IN M AX U NIT Supply voltage, +3.3 V 3.6 V Supply voltage, +5 V 6 V Storage temperature range -50 +150 °C Lead Free solder temperature (5 seconds, 3 reps.) +260 °C TUNER ELECTRICAL CHARACTERISTICS PARAMETER M IN T YP M AX U NIT Power Supply Active current, 3.3 V 82 mA Active current, 5 V 270 mA RF Signal Path Input frequency range 48 1000 MHz Noise figure (DNC Out) 10.5 dB Terminal voltage gain (DNC Out) 39 dB RF AGC range (0 to 3.3 V) 1 30 dB Image rejection 75 dBc LO phase noise (1 kHz) -75 dBc/Hz LO phase noise (10 kHz) -85 dBc/Hz LO phase noise (100 kHz)
48 MHz to 860 MHz -105 dBc/Hz
LO phase noise (100 kHz)
860 MHz to 1000 MHz -104 dBc/Hz
Output voltage swing 1.0 Vp-p Terminal voltage gain, VGACTRL = 0.7 to 3.3 V <12.5 >51.5 dB IF AGC range 39 Db FDC Frequency Range 70 130 MHz Gain 1 dB Noise Figure 12 dB 1Note: With Microtune attenuator design MT2011 Block Diagram MT2011 Pin Diagram 48-1000 MHz In PLL PLL OOB Tuner PIN Diode Atten Loop Filter Loop Filter Charge Pump Charge Pump 3-bit AD GPO Serial Bus DNC Output VGA Output 2nd IF Saw1st IF Saw FDC VGACTRL AGCCTRL PIN Diode Controller AFC In/Temp Out Die Temp Sensor Buffered Reference Output Input Balun Clock Data RFinp GND GND NC FDCin FDCVcc FDCout LO1tcm1 LO1tcm2 LO1reg VCCLO1 LO1LPF GPO A1 15 DVCCLO1 16 SerCLK 17 SerData 18 SerVCC 19 XTALn 20 XTALp 21 SROVCC 22 SROOUT 23 DVCCLO2 24 VGAOUTp 25 VGAOUTn 26 VGAVCC 27 VGAVCC 28