Multistandard hybrid IF processing including car mobile

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Features

General
  • 5 V supply voltage
  • I²C-bus control over all functions
  • Four I²C-bus addresses provided; selection by programmable Module Address (MAD)
  • Three I²C-bus voltage level supported; selection via pin BVS
  • Separate gain controlled amplifiers 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 filter shapes and bandwidths
  • All conventional ATV standards applicable by using DTV bandwidth window [Band-Pass (BP)] filter
  • Easy to use default settings for almost every standard provided, selectable via I²C-bus
  • Two 4 MHz reference frequency stages; the first one operates either as crystal oscillator or as optional signal input, the second one either as external signal input or as buffered reference frequency output
  • Stabilizer circuit for ripple rejection and to achieve constant output signals
  • Smallest size, simplest application
  • ElectroStatic Discharge (ESD) protection for all pins

Analog TV processing

  • Gain controlled wide-band VIF amplifier; AC-coupled
  • Multistandard true synchronous demodulation with active carrier regeneration: very linear demodulation, good intermodulation figures, reduced harmonics and excellent pulse response
  • Internal Nyquist slope processing; switch-off able for alternative use of inexpensive Nyquist slope SAW filter with additive video noise improvement
  • Separate passive video detector; monitor output for antenna diversity applications
  • Gated phase detector for L and L-accent standards
  • Fully integrated VIF Voltage-Controlled Oscillator (VCO), alignment-free, frequencies switchable for all negative and positive modulated standards via I²C-bus
  • 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
  • Optimized AGC modes for negative modulation; e.g. very fast reaction time for VIF and SIF
  • External VIF AGC access for car mobile applications; enable function via control port
  • Precise fully digital Automatic Frequency Control (AFC) detector with 4-bit Digital-to-Analog Converter (DAC); AFC bits can be read-out via I²C-bus
  • High precise Tuner AGC (TAGC) TakeOver Point (TOP) for negative modulated standards; TOP adjust via I²C-bus
  • TAGC TOP for positive standards and Received Signal Strength Indication (RSSI); adjustable via I²C-bus or alternatively by potentiometer
  • Fully integrated Sound Carrier (SC) trap for any ATV standard (SC at 4.5 MHz, 5.5 MHz, 6.0 MHz and 6.5 MHz)
  • SIF AGC for gain controlled SIF amplifier and high-performance single-reference Quasi Split Sound (QSS) mixer
  • True Split Sound (TSS) mode; picture carrier independent sound demodulation for car mobile applications
  • Fully integrated sound BP filter supporting any ATV standard
  • Optional use of external FM sound BP filter
  • AM sound demodulation for L and L-accent standard
  • Alignment-free selective FM Phase-Locked Loop (PLL) demodulator with high linearity and low noise; external FM input
  • Weak Audio Frequency Processing (WAFP) in the event of FM audio; audio gain and bandwidth dependent on received signal quality
  • VIF AGC voltage monitor output or port function
  • VIF AFC current or tuner, SIF or FM AGC voltage or WAFP voltage monitor output
  • Buffered SIF wide-band output, gain controlled by internal SIF AGC
  • 2nd SIF output, gain controlled by internal SIF AGC or by internal FM carrier AGC for Digital Signal Processor (DSP)
  • Fully integrated BP filter for 2nd SIF at 4.5 MHz, 5.5 MHz, 6.0 MHz or 6.5 MHz

Digital TV processing

  • Applicable for terrestrial and cable TV reception
  • 70 dB variable gain wide-band IF amplifier (AC-coupled)
  • Gain control via external control voltage (0 V to 3 V)
  • 2 V (p-p) differential low IF (downconverted) output or 1 V (p-p) 1st IF output for direct Analog-to-Digital Converter (ADC) interfacing
  • DVB downconversion with integrated selectivity for Low IF (LIF)/Zero IF (ZIF)
  • Integrated anti-aliasing tracking low-pass filter
  • Fully integrated synthesizer controlled oscillator with excellent phase noise performance
  • Synthesizer frequencies for a wide range of world wide DVB standards (for IF center frequencies of 34.5 MHz, 36 MHz, 44 MHz and 57 MHz)
  • All DVB bandwidth ranges supported (including ZIF I/Q)
  • TAGC detector for independent tuner gain control loop applications
  • TAGC operating as peak detector, fast reaction time due to additional speed-up detector
  • Port function
  • TAGC voltage monitor output

Dual mode

  • Fully performed DTV processing and additional ATV video signal processing in parallel, but with reduced performance, for very fast channel scan
  • VIF AGC voltage monitor output or port function
  • VIF AFC current monitor output or TAGC voltage output

FM radio mode

  • Gain controlled wide-band Radio IF (RIF) amplifier; AC-coupled
  • Buffered RIF amplifier wide-band output, gain controlled by internal RIF AGC
  • Fully integrated BP filter for 2nd RIF at 4.5 MHz, 5.5 MHz, 6.0 MHz, 6.5 MHz or 10.7 MHz
  • 2nd RIF output, gain controlled by internal RIF AGC or by internal FM carrier AGC for DSP
  • Alignment-free selective FM PLL demodulator with high linearity and low noise
  • Precise fully digital AFC detector with 4-bit DAC; AFC bits read-out via I²C-bus
  • Weak signal FM audio frequency processing
  • Port function
  • Radio AFC current or tuner, RIF or FM AGC voltage or WAFC voltage monitor output

  • Analog and digital TV front-end applications for TV sets, recording applications, car mobile and personal computer cards
  • Target Applications

    • Analog and digital TV front-end applications for TV sets, recording applications, car mobile and personal computer cards

    部品番号: TDA9899HN.

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