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ITD3010: Low-IF Digital TV Tu

2009-09-14 09:07本站整理 佚名我要評論（0）我要收藏

ITD3010:  Low-IF Digital TV Tuner IC for Terrestrial DMB & FM

The ITD3010 is a highly integrated CMOS single chip low-IF single-conversion tuner IC for terrestrial DMB (Digital multimedia broadcasting). It supports Korean terrestrial DMB standard along with analog FM. It includes an LNA, an RF PGA, an image-rejection down-conversion mixer, a bandwidth adjustable low pass filter, an IF variable gain amplifier, a VCO and a fractional-N PLL, etc. On-chip low phase noise VCO along with high resolution fractional-N frequency synthesizer make in-band phase noise lower than that of any other conventional tuners. The ITD3010 also includes several regulators, which make it possible to use single 2.85 V power supply.

The ITD3010 exhibits ultra low power consumption such as 100 mW. Using small leadless 6 mm × 6 mm 40-Lead QFN package, the ITD3010 is the best solution for highly integrated multituner system and portable application where low power consumption is critical. It has an industry standard I2C serial bus interface. Primary application of the ITD3010 is terrestrial DMB mobile phones and the portable terrestrial DMB receiver.

Product Highlights

  1. Single chip synthesized tuner for terrestrial DMB and FM receiver
  2. Low-IF single-conversion architecture which eliminates all SAW filters
  3. Ultra low power consumption: 100 mW

Applications

  • Terrestrial DMB Mobile Phone
  • FM radio application
  • Digital Terrestrial TV and Set-Top Boxes
  • Low Power Portable TV, PDA, Mobile Phone

    Features

    • Single chip synthesized tuner for terrestrial DMB and FM receiver
    • Low-IF single-conversion architecture which eliminates all SAW filters
    • Covers whole band-III (174 ~ 245 MHz) and FM (88 ~ 108 MHz)
    • Operating dynamic range: -102 ~ -10 dBm
    • Ultra low power consumption: 100 mW
    • On-chip regulators for 2.85 V single supply
    • Ideal for mobile TV receiver, terrestrial DMB application
    • I2C serial bus interface

    • On-chip fast switching fractional-N PLL
    • On-chip low phase noise and wide frequency range VCO
    • On-chip bandwidth-adjustable low pass filter
    • Integrated IF variable gain amplifier for direct connection to digital demodulators
    • Noise/Linearity optimization through internal RF RSSI and AGC loop
    • Adjustable take-over point
    • Small 40-QFN package (6 mm × 6 mm)
    • Minimal external components
    • Fully compatible with Terrestrial DMB and FM

    ITD3010 Diagram
    Functional Block Diagram for ITD3010

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