TDA8296 datasheet(2/87 Pages) NXP

2 / 87 page

TDA8296

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Product data sheet

Rev. 1 — 3 March 2011

2 of 87

NXP Semiconductors

TDA8296

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

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 over

modulation

Video equalizer with eight settings

Nyquist filter in video baseband

Excellent video S/N (typically 60 dB weighted)

High selectivity video low-pass filter for all standards

Low video into sound crosstalk

SSIF AGC

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

Very low total power dissipation (typically 150 mW)

No power sequence requirement

Standby mode (typically 5 mW)

40-pin HVQFN package

CMOS technology (0.090

μm 1.2 V and 3.3 V)

Applications

TV applications

Recording

PC TV applications

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