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NXP Semiconductors - Low power DVB / T tuner

Numéro de référence TDA18291HN
Description Low power DVB / T tuner
Fabricant NXP Semiconductors 
Logo NXP Semiconductors 





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TDA18291HN fiche technique
TDA18291HN
Low power DVB / T tuner
Rev. 01 — 28 August 2007
Product short data sheet
1. General description
The TDA18291HN is a BiCMOS integrated circuit receiver intended for digital TV
reception for low power applications (e.g. mobile phone and PDA).
The tuner is designed for the terrestrial digital video broadcast (DVB-T standard) and
handheld DVB standard (DVB-H standard). It operates in the VHFIII and UHF band
(174 MHz to 230 MHz and 470 MHz to 862 MHz) and contains all the functions needed for
a whole receiver chain from (RF) input to baseband IQ outputs: LNA, quadrature mixer,
channel filters and a complete RF PLL with a fully integrated VCO. The PLL can operate
from a number of reference frequencies, fitting almost any mobile platform.
The tuner has been designed for low power mobile applications. Power consumption has
been optimized and a dedicated on-off pin has been added to allow for fast switching, and
thus reduce power, in time-sliced applications. To reduce the footprint of the application,
the number of external components has been minimized and the tuner is available in a
HVQFN32 package (5 mm × 5 mm).
2. Features
I 150 mW power consumption in DVB-T mode
I 4 dB noise figure
I Direct conversion ZIF architecture
I 174 MHz to 230 MHz and 470 MHz to 862 MHz tuning range
I Low noise, wide dynamic receiver
I Fully integrated balanced LNA
I Fully integrated channel filters with built-in self-calibration
I Fully integrated fractional N frequency synthesizer
I Fully integrated VCO
I I2C-bus controllable
I Dedicated pin for DVB-H time slicing control
I 19.2 MHz, 26 MHz and 38.4 MHz reference frequency compliant
I HVQFN32 package (5 mm × 5 mm)
Free Datasheet http://www.datasheet4u.com/

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