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TDA8295HN Arkusz danych(PDF) 2 Page - NXP Semiconductors |
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2 / 83 page TDA8295_C2_2 © NXP B.V. 2009. All rights reserved. Product data sheet Rev. 02 — 27 November 2009 2 of 83 NXP Semiconductors TDA8295 Digital global standard low IF demodulator for analog TV and FM radio I2C-bus interface and I2C-bus feed-through for tuner programming Four I2C-bus addresses selectable via two external pins Gated IF AGC acting on black level by using H/V PLL or peak IF AGC (I2C-bus selectable) Internal digital logarithmic IF AGC amplifier with up to 48 dB gain and 68 dB control range Peak search tuner IF AGC for optimal adaptive drive of the IF ADC Switchable IF PLL and IF AGC loop bandwidths Precise AFC and lock detector Accurate group delay equalization for all standards Very robust IF demodulator coping with adverse field conditions Wide PLL pull-in range up to ±1660 kHz (I2C-bus selectable) CVBS and SSIF or audio output with simple postfilter (capacitor only) CVBS gain levelling stage to provide nearly constant signal amplitude during overmodulation Video equalizer with eight settings Nyquist filter in video baseband Excellent video S/N (typically 62 dB weighted) High selectivity video low-pass filter for all standards Low video into sound crosstalk Sound performance comparable to QSS single reference concepts AM/FM mono sound demodulator Switchable de-emphasis Excellent FM sound Good AM sound High FM Deviation mode for China Preprocessing of FM radio (mono and stereo) with highly selective digital band-pass filter No ceramic filter or external components needed for FM radio FM radio available in mono Automatic or forced mute for mono sound Automatic or forced blank for video Mostly digital FIR filter implementation (NSC notches and video low-pass filters) Three GPIO pins Power-On Reset (POR) block for reliable power-up behavior Low total power dissipation (typically 465 mW) Standby mode (typically 7 mW) 40-pin HVQFN package CMOS technology (0.12 μm 1.2 V and 3.3 V) 3. Applications PC TV applications DVD recorders TV applications |
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