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ALC658, ALC660, ALC662-GR

Table of contents:
Info of ALC658
Info of ALC660
Info of ALC662-GR

ALC658, ALC660, ALC662-GR Selling Leads, Datasheet

MFG:realtek Package Cooled:QFP D/C:05+

ALC658, ALC660, ALC662-GR Datasheet download

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Part Number: ALC658

MFG: realtek

Package Cooled: QFP

D/C: 05+

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ALC658 General Description

The ALC658 has six channels of 20-Bit DAC, two pairs of stereo 18-Bit ADC, and an AC'97 2.3 compatible six channel audio CODEC designed for PC multimedia systems. The ALC658 incorporates proprietary converter technology to achieve 100dB sound quality. Not only to meet performance requirements on PC99/2001 systems, but also to make PC sound quality as good as consumer equipment.

The ALC658 CODEC provides three pairs of stereo outputs, with 6-Bit volume controls and multiple stereo and mono inputs, along with flexible mixing, and gain and mute functions to provide a complete integrated audio solution for PCs. The digital interface circuitry of the ALC658 CODEC operates from a 3.3V power supply for use in notebook and PC applications. The ALC658 integrates 50mW/20ohm headset audio amplifiers at Front-Out and AUX. Both are designed to be analog inputs and outputs automatically detected by hardware (Universal Audio Jack®).

To save BOM costs for motherboard makers, the ALC658 features a built-in high accuracy 14.318M to 24.576MHz PLL, saving the cost of an extra 24.576MHz crystal. A PCBEEP generator is integrated and can be programmed by the BIOS to generate POST beeps without a buzzer. The ALC658 also supports S/PDIF input and output functions, which offers easy connection of PCs to consumer electronic products such as AC3 decoders/speakers, and mini disk devices.

The ALC658 supports host/soft audio from Intel ICHx chipsets, as well as audio controller based VIA/SIS/ALI/AMD/nVIDIA/ATI chipsets. Bundled Windows series (98/ME/NT/2000/XP) and Linux drivers, EAX/Direct Sound 3D/I3DL2/A3D compatible sound effect utilities (supporting Karaoke, 26-types of environment sound emulation, 10-band equalizer), HRTF 3D positional audio, and Sensaura™ 3D (optional) providing an excellent entertainment package and game experience for PC users. The ALC658 also includes Realtek's impedance sensing techniques that allow device load on inputs and outputs to be detected.

ALC658 Maximum Ratings

Parameter	Symbol	Minimum	Typical	Maximum	Units
Power Supplies: Digital Analog	DVDD AVDD	3.0 3.0	3.3 5.0	3.6 5.5	V V
Ambient Operating Temperature	Ta	0	-	+70
Storage Temperature	Ts			+125
ESD (Electrostatic Discharge)
	Susceptibility Voltage
	TBD

ALC658 Features

`Meets performance requirements for audio on PC99/2001 systems
`Meets Microsoft WHQL/WLP 2.0 audio requirements
`Six Channels DA Converters with variable rate
`Two pairs of stereo AD Converters with variable rate
`Compliant with AC'97 2.3 specifications
   -Front-Out, Surround-Out, Cen/Lfe-Out, MICIn and LINE-In Jack Sensing
   -14.318MHz to 24.576MHz PLL to save crystal
   -12.288MHz BITCLK input can be consumed
   -Integrated PCBEEP generator to save buzzer
   -Interrupt capability
   -Page and Analog Plug&Play Registers
`Three analog line-level stereo inputs with 5-bit volume control: LINE_IN, CD, AUX
`High quality differential CD input
`Two analog line-level mono input: PCBEEP,PHONE-IN
`Two software selectable MIC inputs
`A dedicated Front-MIC input for front panel applications (software selectable)
`Dedicated Back-Front-Out pin.
`+6/12/20/30dB boost preamplifier for MIC input
`LINE Input shared with surround out, MIC input shared with Center and LFE out (FlexJack®)
`6-Bit volume control for Front-Out, Surround-Out and CEN/LFE-Out
`Both Front-out and AUX have integrated 50mW/20 amplifiers
`External Amplifier Power Down (EAPD)
`Power management and enhanced power saving features
`Stereo MIC record for AEC/BF application
`Supports Power Off CD function
`Adjustable VREFOUT control
`Supports double sampling rate (96KHz) of DVD audio playback
`Support 32K/44.1K/48K/96KHz of S/PDIF output
`Support 32K/44.1K/48KHz of S/PDIF input
`2 Universal Audio Jacks (UAJ)® for front panel
`5 Jack Detect pins for automatic Jack sensing
`Power support: Digital: 3.3V; Analog: 3.3V/5V
`Standard 48-Pin LQFP Package
`EAX™ 1.0&2.0 compatible
`Direct Sound 3D™ compatible
`A3D™ compatible
`HRTF 3D Positional Audio
`Sensaura™ 3D Enhancement (optional)
`10 Bands of Software EQualizer
`Voice Cancellation and Key Shifting in Kara OK mode
`AVRack® Media Player
`Configuration Panel to improve Experience of User

ALC658 Connection Diagram

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