ITD2010:Low Power Mobile TV Tuner IC for ISDB-T

The ITD2010 is a highly integrated CMOS single chip low-IF single-conversion tuner IC for digital TV. It has dual RF inputs as VHF (90 ~ 222 MHz) and UHF (470 ~ 770 MHz). It supports 1-segment and 3-segment of ISDB-T standard. It includes VHF/UHF LNAs, VHF/UHF PGAs, VHF/UHF 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 ITD2010 exhibits ultra low power consumption, while conventional tuners consume over 1 watt. Using small 40-lead QFN [LFCSP_UQ] package, the ITD2010 is the best solution for highly integrated multi-tuner system and portable application where low power consumption is required. It has an industry standard I²C serial bus interface. Primary application of the ITD2010 is the portable analog/digital terrestrial TV receiver such as mobile TV phone.

Product Highlights

1. Single chip synthesized tuner for terrestrial digital TV receiver
2. Low-IF single-conversion architecture which eliminates all SAW filters
3. Low power consumption: 100 ~ 120 mW

Applications

Features

• Single chip synthesized tuner for terrestrial digital TV receiver
• Low-IF single-conversion architecture which eliminates all SAW filters
• VHF (90~222 MHz) and UHF (470 ~ 770MHz) dual RF input
• Operating dynamic range -98 to +10dBm
• Ultra low power consumption:100~120mW
• 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
• Ideal for mobile TV receiver, terrestrial set-top-box application

Functional Block Diagram for ITD2010