I2C Bus Controlled Single and IF PLL Demodulator 24Pin SSOP
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MOQ:
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Updated at 17/06/2025 10:30:15(UTC+8)
Certifications
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Description
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.
Features
■ 5 V supply voltage
■ Gain controlled wideband Vision Intermediate Frequency (VIF) amplifier, AC-coupled
■ Multistandard true synchronous demodulation with active carrier regeneration: very linear demodulation, good intermodulation figures, reduced harmonics, and excellent pulse response
■ Gated phase detector for L and L-accent standard
■ Fully integrated VIF Voltage-Controlled Oscillator (VCO), alignment-free, frequencies switchable for all negative and positive modulated standards via I2C-bus
■ 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
■ 4 MHz reference frequency input: signal from PLL tuning system or operating as
crystal oscillator
■ 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
■ Precise fully digital Automatic Frequency Control (AFC) detector with 4-bit digital-to-analog converter, AFC bits readable via I2C-bus
■ TakeOver Point (TOP) adjustable via I2C-bus or alternatively with potentiometer
■ Fully integrated sound carrier trap for 4.5 MHz, 5.5 MHz, 6.0 MHz and 6.5 MHz, controlled by FM-PLL oscillator
■ Sound IF (SIF) input for single reference Quasi Split Sound (QSS) mode, PLL controlled
■ 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 I2C-bus
■ AM demodulator without extra reference circuit
■ Alignment-free selective FM-PLL demodulator with high linearity and low noise
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- Carefully inspected and packed by ManyChip warehouse
- Vacuum packaging
- Anti-static packaging
- Shockproof foam
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- Electrical testing
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