Versatile satellite silicon tuner reduces system costs
September 10, 2010 // Paul Buckley
NXP Semiconductors N.V. has released what the company claims is the world’s first satellite silicon tuner to address the challenging requirements of both free-to-air (FTA) and operator satellite set-top box (STB) applications. The TDA20142 also reduces system cost through competitive pricing and reduced bill of materials (BoM).
FTA tuners require high sensitivity, but often ignore linearity. Operator tuners, on the other hand, do not require the same sensitivity as FTA tuners, but need high linearity. The TDA20142 was designed to provide industry-leading RF performance in both areas. In particular, the device’s low Noise Figure of typically 5.5 dB means excellent sensitivity for FTA applications, while its high IIP3 of typically +10 dBm means high linearity for operator applications. At the same time, each application benefits from the enhanced performance provided by optimizations in the other. Because the TDA20142 addresses both high and low ends of the power spectrum, it has a very wide dynamic range of approximately 100 dB.
To achieve the sensitivity required by FTA applications, it is common for STB makers to use an external Low Noise Amplifier (LNA). By integrating this FTA LNA and loopthrough, the TDA20142 reduces the bill of materials for STB manufacturers, while reducing the complexity of the designs. The TDA20142 further reduces BoM by including a flexible crystal oscillator and buffered clock output with optional dividers; with this feature, STB designers can reduce BoM costs by sharing crystal clocks between multiple ICs.
With the TDA20142, set-top box manufacturers can use a single reference design for all single satellite applications, reducing costs and avoiding the need to source and stock LNAs and multiple types of tuners. Free-to-air broadcasters moving from standard definition to high-definition satellite STBs now have a cost-effective, higher-quality alternative to using more expensive silicon tuners, while operators benefit from the ability to receive lower-power signals and serve markets with marginal reception. STBs using the TDA20142 claims to enable a better viewing experience, even for viewers at the edge of the satellite footprint.
The satellite silicon tuner will be showcased at IBC 2010 in Amsterdam, The Netherlands.
Engineering samples of the TDA20142 are available immediately.
More information about the TDA20142 satellite silicon tuner at:
Visit NXP Semiconductors at www.nxp.com
ADCs for high dynamic range – successive-approximation or sigma-delta?
September 01, 2014
Maithil Pachchigar, an applications engineer with Analog Devices Inc., looks at trade-offs that must be considered when choosing ...
Microchip in Pursuit of CSR
Samsung Funds III-V FinFETs in US Lab
A question of Europe
Trinamic's stepper motor package gets you started
Winged parcel delivery: Google's way
August 29, 2014
While there is still debate about if legislation would ever allow swarms of commercial drones to fly over our heads, Google ...
Two-inch Super AMOLED display fits Samsung smartwatch plans
UK armed forces consider lithium sulfur batteries
Small cell market to hit $4.8 billion in five years
- Power Modules: The New Super Power
- Flexible Performance for Network Security Appliances
- Digital Power Management Reduces Energy Costs While Improving System Performance
- Using RF Recording Techniques to Resolve Interference Problems
InterviewA question of Europe
Sir Peter Bonfield sits on the board and has advisory roles in many international companies and universities. With more than 45 years of experience in electronics, computers and communications, here he ...
Filter WizardCheck out the Filter Wizard Series of articles by Filter Guru Kendall Castor-Perry which provide invaluable practical Analog Design guidelines.
Linear video channel
READER OFFERRead more
This month, Trinamic Motion Control is offering you to win one of four TMCM-1043 development kits for its highly integrated, NEMA 17-compatible TMCM-1043 stepDancer stepper motor module.
Offering designers an easy-to-use PC-based GUI that allows one-click modification of motor drive current, micro-stepping and other key parameters, the intuitive kits are custom designed and developed for...MORE INFO AND LAST MONTH' WINNERS...
December 15, 2011 | Texas instruments | 222901974
Unique Ser/Des technology supports encrypted video and audio content with full duplex bi-directional control channel over a single wire interface.