 |
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
| Datasheet File OCR Text: |
| M I C R O T U NE(R) RF SILICON AND SUBSYSTEMS SOLUTIONS FOR BROADBAND COMMUNICATIONS AND AUTOMOTIVE ELECTRONICS MT2170 SINGLE-CHIP DOCSIS 3.0 WIDEBAND TUNER PRODUCT BRIEF The MT2170 is a low-power, single-chip DOCSIS 3.0 wideband tuner with an integrated IF variable gain amplifier. MT2170 Single-Chip DOCSIS 3.0 Wideband Tuner The MicroTunerTM MT2170 is an advanced, low-power single-chip wideband tuner that has been optimized for high-performance DOCSIS 3.0-compliant cable modems and digital cable set-top boxes that require low composite distortion and low noise under digital cable environments. The MT2170 is capable of receiving frequencies in the 48MHz to 1GHz range and of converting a selected channel to a standard intermediate frequency (IF) between 26MHz and 126MHz. The MT2170's dualconversion architecture yields the desirable characteristics of DOCSIS 3.0 broadband functionality. Together with the Microtune differential 2nd IF Filter, the MT2170 provides an optimized IF signal needed for DOCSIS 3.0 demodulators. The MT2170 provides excellent in-band flatness as well as very repeatable gain characteristics across the complete reception band. The MT2170 has a field proven, onboard, fully autonomous AGC which requires only one signal connection between the tuner and the demodulator. This allows signals of poor quality to be adequately conditioned for further processing to deliver extremely low bit error rates. APPLICATIONS * * * * * * DOCSIS 3.0 Wideband Cable Modems Video over IP Digital Set-top Boxes DOCSIS 3.0 VoIP Telephony Modem PacketCableTM E-MTA's Home Gateways Multimedia Applications FEATURES * * * 48MHz to 1GHz input frequency range 5V & 3.3V power supply Works seamlessly with DOCSIS 3.0 digital demodulators 1.5W dual-conversion architecture Single-ended RF input reduces BOM by eliminating input balun Minimal external components No manually tunable parts required Integrated IF variable gain amplifier for direct connection to digital demodulators Fully compatible with DOCSIS 3.0, EuroDOCSIS, and other standards MICROTUNE PRELIMINARY * * * * * * MT2170 SINGL E-C HIP WID EBA ND TUN ER PRODUCT BRIEF RECOMMENDED OPERATING CONDITIONS PARAMETER Second intermediate center frequency (programmable) Supply voltage 5V Supply voltage 3.3V Supply voltage ripple Operating junction temperature VGA output load impedance Serial control clock TUNER ELECTRICAL CHARACTERISTICS MAX 126 MIN 26 4.75 3.15 TYP UNIT MHz V V mV C kHz PARAMETER Power Supply Active current 5V Active current 3.3V RF Signal Path Input frequency range Noise figure Voltage gain RF AGC range Image rejection LO phase noise (10 kHz) LO phase noise (100 kHz) LO step size IF VGA Frequency range Maximum output voltage Maximum voltage gain IF AGC range MIN TYP 250 75 MAX UNIT mA mA 5.0 3.3 5.25 3.45 15 125 400 48 9 42 55 70 84 104 50 1000 MHz dB dB dB dBc dBc/Hz dBc/Hz kHz 500 ABSOLUTE RATINGS PARAMETER Supply voltage 5V Supply voltage 3.3V Storage temperature range MIN MAX 6 3.6 UNIT V V C C V 26 126 1.0 30 46 MHz Vp-p dB dB -50 +150 +260 PRELIMINARY Lead-free temperature (soldering 4 seconds) Input voltage -0.3 VCC +0.3 UPCVCCB DNCVCC UPCoutn UPCoutp DNCinp DNCinn RFcap GND GND GND GND RFin Lumped Element Filter 1250 MHz SAW Filter DNC Output 48 47 46 45 44 43 42 41 40 39 38 UPCVCCF GPO A1 A0 N/C LO1AVCC LO1T2CM LO1T1CM LO1REG LO1LPF GND VCC3V 1 2 3 4 5 6 7 8 9 10 11 12 37 36 35 34 33 32 IFVCC DNCoutp DNCoutn PD1cap PD2cap N/C VGAinp VGAinn VGAVCC LNA RF Input Filter ATTN RL Amp UPC DNC IF VGA Exposed paddle on package bottom 31 30 29 28 27 26 25 VCO/ PLL PD1 VCO/ PLL PD2 VGAVCC VGAcntl VGAoutp Temp Sensor AGC Control Block AFC A/D SRO GPO 13 14 15 16 17 18 19 20 21 22 23 24 SERCLK VCC3V SERData LO2TCM MT2170 Pin Diagram SRO Out IF AGC I/P LO2AVCC VGAoutn SROout XTALn XTALp LO2REG GND LO2LPF Digital Control MT2170 Block Diagram Microtune, Inc., 2201 Tenth 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 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, 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; D469,742 and additional patents pending or filed. Entire contents Copyright (c) 1996 - 2007 Microtune, Inc. 030207 MT2170 PB-00144 -- Rev 1.0 March, 2007 |
Price & Availability of MT2170
 |
|
|
|
|
All Rights Reserved © IC-ON-LINE 2003 - 2022 |
| [Add Bookmark] [Contact Us] [Link exchange] [Privacy policy] |
|
Mirror Sites : [www.datasheet.hk]
[www.maxim4u.com] [www.ic-on-line.cn]
[www.ic-on-line.com] [www.ic-on-line.net]
[www.alldatasheet.com.cn]
[www.gdcy.com]
[www.gdcy.net] |