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65nm DTV receivers cut power draw, design footprint

Posted: 08 Feb 2008 ?? ?Print Version ?Bookmark and Share

Keywords:DTV? single-chip receivers? DVB-Terrestrial? DVB-Handheld? 65nm?

DTV single-chip receivers that support the DVB-Terrestrial and -Handheld standards have been introduced by Broadcom Corp. The 65nm BCM2940 integrates a dual-mode demodulator and tuner to support both DVB-T and DVB-H for the high-growth cellular handset market. The BCM2930 is optimized for DVB-T applications targeting STB and PC markets, and enables DTV broadcasts as a value-added feature on portable platforms.

An aggressive process technology implementation means the BCM2940 and BCM2930 reduce power consumption by up to 40 percent and footprint requirements by up to 30 percent from current handset design budgets. Advanced tuner and demodulator design of both chips allows for measurably improved reception indoors and in high-speed environments.

The receivers integrate state-of-the-art RF tuners with standards-compliant DVB-T and DVB-H digital basebands on single die. They support the VHF III, UHF IV and V bands. The BCM2940 also supports the EU/US L-bands and integrates 4Mb MPE-FEC SRAM to handle DVB-H parallel/consecutive streams and services.

Both offer a variety of physical interfaces including SPI, SDIO and USB 2.0. They functionally exceed IEC 62002 (MBRAI) specifications for mobile video applications. They also improve signal reception with -98dBm sensitivity in DVB-T mode (QEF, QPSK-1/2) for all UHF/VHF channels, and Both the BCM2940 and BCM2930 are available in an FBGA package and the BCM2940 is also available in a WLBGA package. Both mobile TV devices and firmware are sampling to qualified customers. Pricing is available upon request.

- Jack Shandle
Wireless Net DesignLine

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