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TDA9897HN Datasheet

  • TDA9897HN

  • Multistandard hybrid IF processing

  • 103頁

  • PHILIPS

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TDA9897; TDA9898
Multistandard hybrid IF processing
Rev. 03 鈥?11 January 2008
Product data sheet
1. General description
The Integrated Circuit (IC) is suitable for Intermediate Frequency (IF) processing including
global multistandard Analog TV (ATV), Digital Video Broadcast (DVB) and mono FM radio
using only 1 IC and 1 to 3 鏗亁ed Surface Acoustic Waves (SAWs) (application dependent).
TDA9898 including L and L-accent standard. TDA9897 without L and L-accent standard.
2. Features
2.1 General
I
I
I
I
I
5 V supply voltage
I
2
C-bus control over all functions
Four I
2
C-bus addresses provided; selection by programmable Module Address (MAD)
Three I
2
C-bus voltage level supported; selection via pin BVS
Separate gain controlled ampli鏗乪rs with input selector and conversion for incoming IF
[analog Vision IF (VIF) or Sound IF (SIF) or Digital TV (DTV)] allows the use of
different 鏗乴ter shapes and bandwidths
All conventional ATV standards applicable by using DTV bandwidth window
[Band-Pass (BP)] 鏗乴ter
Easy to use default settings for almost every standard provided, selectable via I
2
C-bus
Two 4 MHz reference frequency stages; the 鏗乺st one operates as crystal oscillator, the
second one as external signal input
Stabilizer circuit for ripple rejection and to achieve constant output signals
Smallest size, simplest application
ElectroStatic Discharge (ESD) protection for all pins
I
I
I
I
I
I
2.2 Analog TV processing
I
Gain controlled wide-band VIF ampli鏗乪r; AC-coupled
I
Multistandard true synchronous demodulation with active carrier regeneration: very
linear demodulation, good intermodulation 鏗乬ures, reduced harmonics and excellent
pulse response
I
Internal Nyquist slope processing; switch-off able for alternative use of inexpensive
Nyquist slope SAW 鏗乴ter with additive video noise improvement
I
Gated phase detector for L and L-accent standards
I
Fully integrated VIF Voltage-Controlled Oscillator (VCO), alignment-free, frequencies
switchable for all negative and positive modulated standards via I
2
C-bus
I
VIF Automatic Gain Control (AGC) detector for gain control; operating as a peak sync
detector for negative modulated signals and as a peak white detector for positive
modulated signals

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