Datasheet > ES3986F

ES3986F

更新时间： 2024-02-01 12:04:46

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描述
Digital-Audio Processor Product Brief

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ES3986F 技术参数

是否Rohs认证：	不符合	生命周期：	Contact Manufacturer
包装说明：	,	Reach Compliance Code：	unknown
风险等级：	5.78	Base Number Matches：	1

ES3986F 数据手册

ES3986

Digital-Audio Processor

Product Brief

ESS Technology, Inc.

DESCRIPTION

FEATURES

The ES3986 digital-audio processor chip is ESS

Technology’s highly integrated, optimal-quality, and cost-

effective single-chip solution for the emerging digital-audio

market. Its target applications include internet audio

platforms, MP3 CD players in boom box and combination

systems, portable MP3 CD player, etc.

• Programmable multimedia processor (PMP)

architecture

• MPEG1/MPEG2 and MP3 audio decoder

• CD block decoder functions

• STC interpretation and audio phase-lock loop (PLL)

• 256/384 fs for audio system clock

• Programmable master clock for external audio DAC

• Independent bit clock for audio transmit and receive

• Power management

• 2.5V power supply with 5V-tolerant I/Os

• 3D sound and surround sound

• Karaoke function

• Vocal reverb: simulates a theater acoustic

environment

• 0.3W power dissipation

• 2-Mb DRAM support

• 100-pin plastic quad flat pack (PQFP) package digital-

audio processor

Based on the programmable multimedia processor (PMP)

architecture,

the

ES3986

integrates

software-

configurable 32-bit reduced instruction set computing

(RISC) processor and a 64-bit vector processor core. The

RISC CPU can be used in place of a microcontroller to

provide the functions of system management, user

interface, and peripheral control. The vector processor is

dedicated for audio-specific processing. In addition to

MPEG audio decoding, it will generate 3D sound effects,

and support karaoke features, such as key control and

echo. The chip also provides the voice-activated ADPCM

codec for voice recording and language learning through

MIC input.

The ES3986 supports a variety of CD servos directly to

provide the system solution of lower BOM cost and

manufacturing flexibility. With its low system power

consumption, the built-in antishock capabilities, and 16-

Mbit DRAM support, the ES3986 is very suitable for

portable audio applications.

Figure 1 shows a typical standalone system using a

MP3 player, where the MP3 stream from a CD-ROM is

passed to the ES3986, which parses the system layer

and decodes the audio layer. The decoded MPEG

audio and 3D sound enhancement is then passed to the

external audio DAC.

Remote

Panel

Control/

Interface

Keypad

ES3986

Digital-Audio

CD ROM

Audio

Headphones

Amplifier

AUDIO

DAC

DRAM

1M x 16

Processor

ROM

Figure 1 ES3986 VCD Processor System Block Diagram

ESS Technology, Inc.

SAM0393-031201

12 3 4

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