TDA8295 Datasheet, PDF(2/77 Page) NXP Semiconductors – Digital global standard low IF demodulator for analog TV and FM radio

English

English German Russian Spanish Italian Polish Chinese Japanese Korean French Portuguese	Language :

TDA8295 Datasheet, PDF (2/77 Pages) NXP Semiconductors – Digital global standard low IF demodulator for analog TV and FM radio

◁

NXP Semiconductors

TDA8295

Digital global standard low IF demodulator for analog TV and FM radio

I Gated IF AGC acting on black level by using H/V PLL or peak IF AGC (I2C-bus

selectable)

I Internal digital logarithmic IF AGC ampliï¬er with up to 48 dB gain and 68 dB control

range

I Peak search tuner IF AGC for optimal adaptive drive of the IF ADC

I Switchable IF PLL and IF AGC loop bandwidths

I Precise AFC and lock detector

I Accurate group delay equalization for all standards

I Very robust IF demodulator coping with adverse ï¬eld conditions

I Wide PLL pull-in range up to Â±1660 kHz (I2C-bus selectable)

I CVBS and SSIF or audio output with simple postï¬lter (capacitor only)

I CVBS gain levelling stage to provide nearly constant signal amplitude during

overmodulation

I Video equalizer with eight settings

I Nyquist ï¬lter in video baseband

I Excellent video S/N (typically 62 dB weighted)

I High selectivity video low-pass ï¬lter for all standards

I Low video into sound crosstalk

I Sound performance comparable to QSS single reference concepts

I AM/FM mono sound demodulator

I Switchable de-emphasis

I Excellent FM sound

I Good AM sound

I High FM Deviation mode for China

I Preprocessing of FM radio (mono and stereo) with highly selective digital band-pass

ï¬lter

I No ceramic ï¬lter or external components needed for FM radio

I FM radio available in mono

I Automatic or forced mute for mono sound

I Automatic or forced blank for video

I Mostly digital FIR ï¬lter implementation (NSC notches and video low-pass ï¬lters)

I Three GPIO pins

I Low total power dissipation (typically 324 mW)

I Standby mode (typically 7 mW)

I 40-pin HVQFN package

I CMOS technology (0.12 Âµm 1.2 V and 3.3 V)

3. Applications

I PC TV applications

I DVD recorders

TDA8295_1

Product data sheet

Rev. 01 â 4 February 2008

2 of 77

▷