Datasheet > TDA8295_09

TDA8295_09

更新时间： 2024-09-23 11:57:15

品牌	Logo	应用领域
恩智浦 - NXP		电视
页数	文件大小	规格书
83页	3624K
描述
Digital global standard low IF demodulator for analog TV and FM radio

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TDA8295_09 数据手册

TDA8295

Digital global standard low IF demodulator for analog TV and

FM radio

Rev. 02 — 27 November 2009

Product data sheet

1. General description

The TDA8295 is an alignment-free digital multistandard vision and sound low IF signal

PLL demodulator for positive and negative video modulation including AM and FM mono

sound processing. It can be used in all countries worldwide for M/N, B/G/H, I, D/K,

L and L-accent standard. CVBS and SSIF/mono audio is provided via two DACs. FM

radio preprocessing is included for simple interfacing with demodulator/stereo decoder

backends.

The IC is especially suited for the application with the NXP Silicon Tuner TDA8275A or

TDA1827x.

All the processing is done in the digital domain.

The chip has an ‘easy programming’ mode to make the I²C-bus protocol very simple. In

principle, only one bit sets the proper standard with recommended content. However, if

this is not suitable, free programming is always possible.

Note: The recommended ADC programming deviates from default setting and needs to

be set explicitly by I²C-bus protocol after hardware reset (see Section 13.5.1).

2. Features

Digital IF demodulation for all analog TV standards worldwide (M/N, B/G/H, D/K, I,

L and L-accent standard)

Multistandard true synchronous demodulation with active carrier regeneration

Alignment-free

16 MHz typical reference frequency input (from low IF tuner) or operating as crystal

oscillator

Internal PLL synthesizer which allows the use of a low-cost crystal (typically 16 MHz)

Especially suited for the NXP Silicon Tuner TDA8275A or TDA1827x

No SAW filter needed

Low application effort and external component count in combination with the

TDA8275A or TDA1827x

Pin compatible with predecessor TDA8290

Simple upgrade of TDA8290 possible

12-bit IF ADC on chip running with 54 MHz or 27 MHz

Two 10-bit DACs on chip for CVBS and SSIF or audio

Easy programming for I²C-bus

High flexibility due to various I²C-bus programming registers

12 3 4 5 6 7...83

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