Datasheet > STAC9750

STAC9750

更新时间： 2024-10-27 04:02:15

品牌	Logo	应用领域
艾迪悌 - IDT		解码器编解码器
页数	文件大小	规格书
73页	636K
描述
VALUE-LINE TWO-CHANNEL AC’97 CODECS

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STAC9750 数据手册

DATASHEET

VALUE-LINE TWO-CHANNEL AC’97 CODECS

STAC9750/9751

OVERVIEW

DESCRIPTION

Value-Line Stereo AC'97 CODECs with headphone drive

and SPDIF outputs.

IDT's STAC9750/9751 are general purpose, full duplex,

audio CODECs conforming to the analog component spec-

ification of AC'97 (Audio CODEC 97 Component Specifica-

tion Rev. 2.2). They have 18-bit ADCs and 20-bit DACs.

The STAC9750/9751 incorporate IDT's proprietary Σ∆ tech-

nology to achieve a DAC SNR in excess of 89dB.

FEATURES

•

Full Duplex Stereo 18-bit ADCs and 20-bit DACs

AC’97 Rev 2.2 Compliant

The DACs, ADCs and mixer are integrated with analog I/

Os, which include four analog line-level stereo inputs, two

analog line-level mono inputs, two stereo outputs, and one

mono output channel.

High Performance Σ∆ Technology

SPDIF Output

Crystal Elimination Circuit

Headphone amplifier

The STAC9750/9751 include digital input/output capability

for support of modern PC systems and also an output that

supports the SPDIF format.

Independent Sample Rates for ADCs & DACs

(hardware SRCs)

The STAC9750/9751 is a standard 2-channel stereo

CODEC. With IDT’s headphone drive capability, head-

phones can be driven with no external amplifier.

•

20dB or 30dB Microphone Boost Capability

90dB SNR LINE-LINE

5-Wire AC-Link Protocol Compliance

Digital-Ready Architecture

The STAC9750/9751 may be used as a secondary

CODEC, with the STAC9700/21/44/56/08/84/66 as the pri-

mary, in a multiple CODEC configuration conforming to the

AC'97 Rev. 2.2 specification. This configuration can provide

the true six-channel, AC-3 playback required for DVD appli-

cations.

General Purpose I/O

+3.3 V (STAC9751) and +5 V (STAC9750) Analog

Power Supply Options

•

Pin Compatible With STAC9700/21/56/66

IDT Surround (SS3D) Stereo Enhancement

Energy Saving Dynamic Power Modes

The STAC9750/9751 communicates via the five-wire

AC-Link to any digital component of AC'97, providing flexi-

bility in the audio system design.

The STAC9750/9751 supports General Purpose Input/Out-

put (GPIO), as well as SPDIF output. These digital I/O

options provide for a number of advanced architectural

implementations, with volume controls and digital mixing

capabilities built directly into the CODEC.

KEY SPECIFICATIONS

•

Analog LINE_OUT SNR: 90dB

Digital DAC SNR: 89dB

Digital ADC SNR: 85dB

Packaged in an AC'97 compliant 48-pin TQFP, the

STAC9750/9751 can be placed on the motherboard,

daughter boards, PCI, AMR, CNR, or ACR cards.

Full-scale Total Harmonic Distortion: 0.005%

Crosstalk between Input Channels: -70dB

Spurious Tone Rejection: 100dB

RELATED MATERIALS

•

Data Sheet

Reference Designs for MB, CNR, ACR and PCI

applications

•

Audio Precision Performance Plots

IDT™

STAC9750/9751

V 5.8 103106

VALUE-LINE TWO-CHANNEL AC’97 CODECS

12 3 4 5 6 7...73

中文翻译

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与STAC9750相关器件

型号	品牌	获取价格	描述	数据表
STAC9750(5V)	ETC	获取价格	STAC9750 (5V) and STAC9751 (3.3V) : Value-Lin
STAC9750XXTAEYYX	IDT	获取价格	VALUE-LINE TWO-CHANNEL AC’97 CODECS
STAC9751(3.3V)	ETC	获取价格	STAC9750 (5V) and STAC9751 (3.3V) : Value-Lin
STAC9751XXTAEYYX	IDT	获取价格	VALUE-LINE TWO-CHANNEL AC’97 CODECS
STAC9752	IDT	获取价格	TWO-CHANNEL, 20-BIT, AC’97 2.3 CODECS WITH HE
STAC9752(5V)	ETC	获取价格	STAC9752 (5V) and STAC9753 (3.3V) : Two-Chann
STAC9752A	IDT	获取价格	AC’97 2.3 CODECS WITH STEREO MICROPHONE & UNI
STAC9752ATG	IDT	获取价格	PCM Codec, 1-Func, PQFP48, 7 X 7 MM, 1.40 MM HEIGHT, LEAD FREE, LQFP-48
STAC9752AXNAEYYX	IDT	获取价格	AC’97 2.3 CODECS WITH STEREO MICROPHONE & UNI
STAC9752AXNAEYYXR	IDT	获取价格	PCM Codec, 1-Func, 5 X 5 MM, 0.90 MM HEIGHT, ROHS COMPLIANT, MO-220VHHD-5, QFN-32

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