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TDA9817 Datasheet(PDF) 2 Page - NXP Semiconductors |
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TDA9817 Datasheet(HTML) 2 Page - NXP Semiconductors |
2 / 41 page 2004 Jun 29 2 Philips Semiconductors Product specification Single/multistandard VIF/SIF-PLL and FM-PLL/AM demodulators TDA9817; TDA9818 FEATURES • 5 V supply voltage • Applicable for Intermediate Frequencies (IFs) of 38.9, 45.75 and 58.75 MHz • Gain controlled wide band Video IF (VIF) amplifier (AC-coupled) • True synchronous demodulation with active carrier regeneration (very linear demodulation, good intermodulation figures, reduced harmonics and excellent pulse response) • Robustness for over-modulation better than 105% due to gated phase detector at L/L accent standard and PLL-bandwidth control at negative modulated standards • Voltage Controlled Oscillator (VCO) frequency switchable between L and L accent (alignment external) picture carrier frequency • VIF Automatic Gain Control (AGC) detector for gain control, operating as peak sync detector for B/G, peak white detector for L; signal controlled reaction time for L • Tuner AGC with adjustable TakeOver Point (TOP) • Automatic Frequency Control (AFC) detector without extra reference circuit • AC-coupled limiter amplifier for sound intercarrier signal • Alignment-free FM Phase-Locked Loop (PLL) demodulator with high linearity • Sound IF (SIF) input for single reference Quasi Split Sound (QSS) mode (PLL controlled); SIF AGC detector for gain controlled SIF amplifier; single reference QSS mixer able to operate in high performance single reference QSS mode and in intercarrier mode • AM demodulator without extra reference circuit • Stabilizer circuit for ripple rejection and to achieve constant output signals • ElectroStatic Discharge (ESD) protection for all pins. GENERAL DESCRIPTION The TDA9817 is an integrated circuit for single standard vision IF signal processing and FM demodulation. The TDA9818 is an integrated circuit for multistandard vision IF signal processing, sound AM and FM demodulation. ORDERING INFORMATION TYPE NUMBER PACKAGE NAME DESCRIPTION VERSION TDA9817T SO24 plastic small outline package; 24 leads; body width 7.5 mm SOT137-1 TDA9817TS SSOP24 plastic shrink small outline package; 24 leads; body width 5.3 mm SOT340-1 TDA9818 SDIP24 plastic shrink dual in-line package; 24 leads (400 mil) SOT234-1 TDA9818T SO24 plastic small outline package; 24 leads; body width 7.5 mm SOT137-1 TDA9818TS SSOP24 plastic shrink small outline package; 24 leads; body width 5.3 mm SOT340-1 |
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