Datasheet > TDA9881TS/V1,118

TDA9881TS/V1,118

更新时间： 2024-02-25 13:58:03

品牌	Logo	应用领域
恩智浦 - NXP		电视
页数	文件大小	规格书
42页	217K
描述
TDA9881 - Alignment-free vision and FM sound IF-PLL demodulator for negative modulated TV standards SSOP2 24-Pin

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数据手册

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TDA9881TS/V1,118 技术参数

Source Url Status Check Date：	2013-06-14 00:00:00	生命周期：	Obsolete
零件包装代码：	SSOP2	包装说明：	5.30 MM, PLASTIC, MO-150, SOT-340-1, SSOP-24
针数：	24	Reach Compliance Code：	unknown
风险等级：	5.58	Base Number Matches：	1

TDA9881TS/V1,118 数据手册

TDA9881

Alignment-free vision and FM sound IF PLL demodulator for

negative modulated TV standards

Rev. 01 — 16 November 2004

Product data sheet

1. General description

The TDA9881 is an alignment-free multistandard (PAL and NTSC) vision and sound

IF signal PLL demodulator for negative modulation, including Quasi Split Sound (QSS) or

intercarrier FM processing.

2. Features

■ 5 V supply voltage

■ Gain controlled wideband Vision Intermediate Frequency (VIF) ampliﬁer; AC-coupled

■ Multistandard true synchronous demodulation for negative modulated standards with

active carrier regeneration: very linear demodulation, good intermodulation ﬁgures,

reduced harmonics and excellent pulse response

■ Fully integrated VIF Voltage Controlled Oscillator (VCO), alignment-free, frequencies

switchable via logic pin VIF0 and pin QSSO with resistor

■ Digital acquisition help circuit, VIF frequencies of 38.0 MHz, 38.9 MHz, 45.75 MHz and

58.75 MHz

■ 4 MHz reference frequency input signal from Phase-Locked Loop (PLL) tuning system

or operating as crystal oscillator

■ VIF Automatic Gain Control (AGC) detector for gain control; operating as peak sync

detector

■ VIF AGC monitor output at pin VAGC

■ Precise fully digital Automatic Frequency Control (AFC) detector with 4-bit

digital-to-analog converter

■ TakeOver Point (TOP) adjustable 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 or in intercarrier mode; switchable via

SIF input pins

■ Alignment-free selective FM PLL demodulator with high linearity and low noise.

3. Applications

■ TV, VTR, PC and Set-Top Box (STB) applications.

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