TDA9885; TDA9886
I
2
C-bus controlled single and multistandard alignment-free
IF-PLL demodulators
Rev. 03 — 16 December 2008
Product data sheet
1. General description
The TDA9885 is an alignment-free multistandard (PAL and NTSC) vision and sound
IF signal Phase-Locked Loop (PLL) demodulator for negative modulation only and
FM processing.
The TDA9886 is an alignment-free multistandard (PAL, SECAM and NTSC) vision and
sound IF signal PLL demodulator for positive and negative modulation, including sound
AM and FM processing.
2. Features
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5 V supply voltage
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Gain controlled wideband Vision Intermediate Frequency (VIF) amplifier, AC-coupled
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Multistandard true synchronous demodulation with active carrier regeneration: very
linear demodulation, good intermodulation figures, reduced harmonics, and excellent
pulse response
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Gated phase detector for L and L-accent standard
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Fully integrated VIF Voltage-Controlled Oscillator (VCO), alignment-free, frequencies
switchable for all negative and positive modulated standards via I
2
C-bus
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Digital acquisition help, VIF frequencies of 33.4 MHz, 33.9 MHz, 38.0 MHz, 38.9 MHz,
45.75 MHz and 58.75 MHz
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4 MHz reference frequency input: signal from PLL tuning system or operating as
crystal oscillator
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VIF Automatic Gain Control (AGC) detector for gain control, operating as peak sync
detector for negative modulated signals and as a peak white detector for positive
modulated signals
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Precise fully digital Automatic Frequency Control (AFC) detector with 4-bit
digital-to-analog converter, AFC bits readable via I
2
C-bus
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TakeOver Point (TOP) adjustable via I
2
C-bus or alternatively with potentiometer
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Fully integrated sound carrier trap for 4.5 MHz, 5.5 MHz, 6.0 MHz and 6.5 MHz,
controlled by FM-PLL oscillator
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Sound IF (SIF) input for single reference Quasi Split Sound (QSS) mode, PLL
controlled
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SIF AGC for gain controlled SIF amplifier, single reference QSS mixer able to operate
in high performance single reference QSS mode and in intercarrier mode, switchable
via I
2
C-bus
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AM demodulator without extra reference circuit
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Alignment-free selective FM-PLL demodulator with high linearity and low noise
PHILIPS [ NXP SEMICONDUCTORS ]
