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Team up aimed at dual-RF-input DTV reference design

Posted: 07 Nov 2013 ?? ?Print Version ?Bookmark and Share

Keywords:DTV reference design? TV tuner? RF switch?

MaxLinear Inc. has joined forces with Peregrine Semiconductor Corp. to produce a dual-RF-input digital TV (DTV) front-end reference design. The reference design pairs MaxLinear's MxL600 family (MxL601 and MxL661) of software-programmable, low power, global hybrid-television tuners with Peregrine's low-power PE42750 RF switch in a fully tested, end-to-end solution including complete schematics, BOM and the Gerber files required to quickly implement a high-performance DTV solution.

TV sets incorporating this dual-RF-input front end will support reception of both digital terrestrial TV and cable TV for seamless channel browsing, stated the firm. The front-end design gives OEMs a way to respond to the ever-increasing demand for DTV. This demand is driven, in part, by countries such as China, where the Ministry of Industry and Information Technology (MIIT) has mandated that all TVs 40in and larger must integrate digital terrestrial receivers as of Jan. 1, 2014. This digital-receiver mandate expands to every TV after Jan. 1, 2015.

Peregrine's PE42750 is a 75, single-pole, double-throw (SPDT) RF switch for broadband consumer applications. Manufactured on Peregrine's UltraCMOS technology, the HaRP-enhanced device features high linearity (IIP3 of 47.5dBm @ 2200MHz) and high isolation performance (80dB @ 220MHz and 63dB @ 1GHz).

In compliance with the FCC 15.115 standard, these performance levels are maintained in the unpowered state to prevent reflected signals between the terrestrial antenna and cable feed. This high level of isolation ensures reliable performance in consumer TV applications. The PE42750 covers a frequency range from 5-2200MHz, delivers low insertion loss (0.7dB @ 5MHz and 1dB @ 1GHz) and high ESD rating of 2kV HBM on all ports.

The MxL600 family of tuners delivers exceptional performance for all global analogue and digital TV reception standards in cable and terrestrial reception environments. They offer market-leading, low power consumption of 350mW in typical applications, indicated the firm. The very low power consumption and compact 4 x 4mm footprint in a standard 24-pin QFN package make it possible for customers to design ultra-small form factors and to support multi-tuner applications, the companies added.

The software-configurable MxL600 devices allow manufacturers to design a common front-end for all global broadcast standards. Supported standards include: PAL, SECAM, NTSC, DVB-T/T2, ISDB-T, ISDB-Tmm, ATSC, ATSC M/H, DTMB, ITU-T J.83 Annex A (DVB-C)/B (US Cable)/C (Japan).

The RF reference design is available from MaxLinear. MaxLinear's fifth-generation MxL601 CMOS tuner is shipping in millions of unit volumes. MaxLinear's sixth-generation MxL661 CMOS tuner IC started mass production in 3Q13.

Peregrine's PE42750 is shipping in volume quantities and has been integrated into digital and cable TVs, multi-tuner digital-video recorders and set-top boxes worldwide.

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