MaxLinear and Peregrine Semiconductor have collaborated to produce a dual-RF-input digital TV (DTV) front-end reference design. Television sets incorporating this dual-RF-input front end will support reception of both digital terrestrial TV and cable TV for seamless channel browsing.
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, bill of materials and the Gerber files required to quickly implement a high-performance DTV solution.
The new front-end design gives OEMs a way to respond to the ever-increasing demand for DTV. This demand is driven, in part, by countries like China, where the Ministry of Industry and Information Technology (MIIT) has mandated that all televisions 40 inches and larger must integrate digital terrestrial receivers as of Jan. 1, 2014. This digital-receiver mandate expands to every television after Jan. 1, 2015.
Technical Highlights
Peregrine’s PE42750 is a 75-Ohm, 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 47.5 dBm @ 2200 MHz) and high isolation performance (80 dB @ 220 MHz and 63 dB @ 1 GHz).
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 broad frequency range from 5 MHz to 2200 MHz, delivers low insertion loss (0.7 dB @ 5 MHz and 1.0 dB @ 1 GHz) and high ESD rating of 2000 V HBM on all ports.
The MxL600 family of tuners delivers exceptional performance for all global analog and digital television reception standards in cable and terrestrial reception environments. They offer market-leading, low power consumption of 350mW in typical applications. The very low power consumption and compact 4 x 4 mm 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 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).
Availability
The RF reference design is available now 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 the third quarter of 2013.
Peregrine’s PE42750 is shipping in volume quantities and has been integrated into digital and cable televisions, multi-tuner digital-video recorders and set-top boxes worldwide.
