Telegent Systems has begun shipment of its first-generation TV receiver (TLG1100) and has also introduced a TV-on-chip solution (TLG1130). These devices will enable handset manufacturers and carriers to introduce new products with mobile TV. According to ABI Research, the Mobile TV market will grow to more than 500 million handsets by 2011.

Telegent Systems has used TSMC's process capabilities, CMOS RF design libraries and low-power performance to meet critical design requirements. According to Weijie Yun, CEO and president of Telegent Systems, improved overall system performance was a fundamental design goal, as opposed to concentrating on one specific portion of the receiver.

The receivers provide TV viewing in everyday reception environments and have been shown to be robust even up to speeds of 430 km per hour. Yun stated this is achieved through a special Doppler compensation algorithm.

The receivers provide reception of today's existing, content-rich broadcasting standards, as well as future mobile standards. Consumers can tune into local channels and also subscribe to emerging made-for-mobile content.

Reception is provided with a 75 Ω dipole antenna. The receiver’s sensitivities are –92 dBm for analog signals (PAL or NTSC), and as low as –98 dBm for digital video broadcasts.

Sam Sheng, CTO for Telegent, stated that the SoC (see figure) includes ADCs that have 12-bit resolution. The DSP portion of the receiver uses SureTrak architecture, which implements a collection of algorithms that enhance the three critical functions performed by the receivers: tuning, error prevention and error concealment.

The feature geometry of the TSMC CMOS process used to fabricate the receivers is 0.13 μm. Power consumption for DVB-H reception is about 35 mW to 40 mW. For analog broadcasts, total power consumption is 250 mW. The device requires 2.8 V and 1.2 V rails, which are readily available from regulators in the handset.

In addition to enabling broadcast TV reception to wireless handsets, these devices also enable additional product types with video-capable screens, such as laptops, in-car entertainment systems, and portable MP3/media players.

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