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ITD3020:  Low-IF tuner IC for dual-band DAB & FM

The ITD3020 is a highly integrated CMOS single chip low-IF single-conversion tuner IC for dual-band DAB (Digital audio broadcasting) and FM. It supports Eureka-147 DAB standard along with analog FM. It includes 2 LNAs, 2 RF PGAs, 2 image-rejection down-conversion mixers, a bandwidth adjustable low pass filter, an IF variable gain amplifier, a VCO and a fractional- N PLL, etc. On-chip low phase ...続きを見る

ITD3020:  Low-IF tuner IC for dual-band DAB & FM

製品概要

The ITD3020 is a highly integrated CMOS single chip low-IF single-conversion tuner IC for dual-band DAB (Digital audio broadcasting) and FM. It supports Eureka-147 DAB standard along with analog FM. It includes 2 LNAs, 2 RF PGAs, 2 image-rejection down-conversion mixers, 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 ITD3020 also includes several regulators, which make it possible to use single 2.85 V power supply. The ITD3020 exhibits ultra low power consumption such as 100 mW. Using small leadless 6 mm × 6 mm 40-Lead QFN package, the ITD3020 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 ITD3020 is dual-band DAB/FM mobile phones and the portable DAB/FM receiver.

Product Highlights

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

Applications

  • Dual-band DAB Mobile Phone
  • FM radio application
  • Low Power PDA, Mobile Phone

    • Data Sheet, Rev. PrA, 12/07

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    • Single chip synthesized tuner for dual-band DAB and FM receiver
    • Low-IF single-conversion architecture which eliminates all SAW filters
    • Covers whole band-III (174 ~ 245 MHz), L-band (1450 ~ 1592 MHz) and FM (88 ~ 108 MHz)
    • Operating dynamic range : -102 ~ -10 dBm
    • Ultra low power consumption:
      Band-III 100 mW
      L-band 160 mW
    • Ideal for mobile DAB receiver, FM application
    • I2C serial bus interface
    • On-chip regulators for 2.85 V single supply
    • 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
    • Minimal external components
    • Fully compatible with dual-band DAB and FM
    • Small 40-QFN package (6 mm × 6 mm)

    Functional Block Diagram for ITD3020

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