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參數(shù)資料
| 型號(hào)： | L64777 |
| 英文描述： | L64777 DVB QAM Modulator technical manual 6/00 |
| 中文描述： | L64777的DVB QAM調(diào)制器技術(shù)手冊(cè)6 / 00 |
| 文件頁(yè)數(shù)： | 11/124頁(yè) |
| 文件大?。?/td> | 988K |
| 代理商： | L64777 |
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L64777 DVB QAM Modulator Technical Manual
1-1
Chapter 1
Introduction
This chapter provides an introduction to the L64777. It consists of the
following sections:
Section 1.1, “Overview,” page 1-1
Section 1.2, “Operating Environment,” page 1-2
1.1 Overview
The L64777 chip implements a QAM modulator that is digital video
broadcasting (DVB)-compliant, as described in document ETS 300 429.
The input is an MPEG-2 system layer-compliant transport stream either
in parallel byte-wide or serial format. The chip contains digital signal
processing functions, digital-to-analog converters, and sampling clock
circuitry that generates a quadrature amplitude modulation (QAM)-
modulated output signal in baseband. Users can configure the device by
means of its serial interface.
The L64777 chip design is based on the existing LSI Logic L64767
device and includes the following major enhancements:
Two internal digital-to-analog converters generate in-phase and
quadrature (I and Q) baseband signals.
An on-chip voltage-controlled oscillator improves the symbol rate
PLL to support most frequently used application ranges.
A serial interface replaces the eight-bit microprocessor interface.
A digital numerically controlled oscillator (NCO) and interpolation
mode support operation with the L64724 device.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| L64777 | Digital Video Broadcasting(DVB)-Compliant,quadrature amplitude modulation (QAM)Modulator(數(shù)字視頻廣播系統(tǒng)適配的積分調(diào)幅調(diào)制器) |
| L64825 | Non-VGA Video Controller |
| L64845 | 64-Bit Graphics (GUI) Accelerator |
| L64850GC-25 | DRAM Controller |
| L64850GC-33 | DRAM Controller |
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|---|---|
| L64780 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:L64780 DVB-T COFDM Demodulator technical manual 2/00 |
| L64781 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Single-Chip COFDM Receiver |
| L64782 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:L64782 Single-Chip COFDM Receiver |
| L6480 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:The L6480, realized in analog mixed signal technology, is an advanced fully integrated solution suitable for driving two-phase bipolar stepper motors with microstepping. |
| L64801GC-20 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:32-Bit Microprocessor |
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