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SAA7131E

Global standard low-IF demodulator and PCI audio and video decoder for analog TV

NXP Semiconductors. 

NXP Semiconductors

SAA7131E

Global standard low-IF and PCI audio and video decoder

2. Features

2.1 Generic properties

I Package: LBGA256

I Power supply: 3.3 V/1.8 V

I Power consumption of typical application: 1.35 W

I Meets requirements of PC Design Guides 98/99 and 2001

I Is compliant with PCI Specification 2.2 and Advanced Configuration

I PCI-bus Power Management Interface Specification, rev. 1.1, compliant (supported

states: D0, D1, D2 and D3-hot)

I Reference designs available

2.2 Digital global standard low-IF demodulator for analog TV

I Digital IF demodulation for all analog TV standards worldwide (M/N, B/G/H, D/K, I and

L/L’ standards)

I Multistandard true synchronous demodulation with active carrier regeneration

I Gated IF AGC acting on black level by using H/V PLL

I Composite Video Blanking Sync (CVBS) gain levelling stage to provide nearly

constant signal amplitude

I Precise AFC/lock detector

I 16 MHz reference frequency input (from low-IF tuner) or operating as crystal oscillator

I High selectivity video low-pass filter for all standards

I Sound performance comparable to or better than QSS single reference concepts

I Alignment free

I Nyquist filter in video baseband

I Switchable IF PLL and IF AGC loop bandwidth

I Accurate group delay equalization for all standards

I Mostly digital FIR filter implementation (NSC notches, video low-pass filters)

I No SAW filter needed

I Especially suited for the Silicon Tuner TDA18271

I Low application effort and external component count in combination with the

TDA18271

I Very robust IF demodulator coping with adverse field conditions

I High pull-in range

I CVBS and SSIF (Second Sound IF)/audio output with simple post filter (capacitor only)

I Excellent FM sound

I Acceptable AM sound

I High FM deviation mode for China

I Low video into sound crosstalk

I Auto or forced mute for sound

I Auto or forced blank for video

I One 10-bit IF ADC on-chip

I Two 10-bit DACs on-chip for CVBS and SSIF/audio

I Internal PLL synthesizer which permits to use a low-cost crystal (typically 16 MHz)

SAA7131E_3

Product data sheet

Rev. 03 — 19 May 2008

© NXP B.V. 2008. All rights reserved.

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