ITD3010: Low-IF Digital TV Tu-广州唯朴科技有限公司

ITD3010: Low-IF Digital TV Tu

发布时间：2009-09-14

浏览次数：1364 次

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

Single chip synthesized tuner for terrestrial DMB and FM receiver
Low-IF single-conversion architecture which eliminates all SAW filters
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