Datasheet > 92HD81

92HD81

更新时间： 2022-09-26 20:56:07

品牌	Logo	应用领域
艾迪悌 - IDT		PC
页数	文件大小	规格书
279页	3258K
描述
SINGLE CHIP PC AUDIO SYSTEM

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92HD81 数据手册

DATASHEET

SINGLE CHIP PC AUDIO SYSTEM

CODEC+SPEAKER AMPLIFIER+CAPLESS HP+LDO

92HD81

Description

Features

The 92HD81 single-chip audio system is a low power

optimized, high fidelity, 4-channel audio codec with

integrated speaker amplifier, capless headphone amplifier,

and low drop out voltage regulator.

•

4 Channels (2 stereo DACs and 2 stereo ADCs) with

24-bit resolution

•

Supports full-duplex stereo audio and simultaneous VoIP

Provides a mono output

•

2W/channel stereo speaker amplifier @ 4 ohms and

4.75V

The high integration of the 92HD81 enables the smallest

PCB footprint with the lowest system BOM count and cost.

Two headphone amplifiers

The integrated high-pass filter allows for speaker

protection.

•

One capless and one non-capless retaskable

Internal core voltage regulator

1.5V to 1.8V or 3.3V digital power supply options

The 92HD81 provides high quality HD Audio capability to

notebook and business desktop PC applications.

•

+5 V analog power supply option

Dedicated BTL high pass filter for speaker

protection (RA revision only)

•

Full HDA015-B low power support

•

Audio inactivity transitions codec from D0 to D3 low

power mode

•

Resume from D3 to D0 with audio activity in < 10 msec

D3 to D0 transition with < -65dB pop/click

Port presence detect in D3 with or without bit clock

Optional analog PC beep in D3

Additional vendor specific modes for even lower power

•

Microsoft WLP 3/4/5 premium logo compliant, as

defined in WLP 3.9

Dual SPDIF for WLP compliant support of

simultaneous HDMI and SPDIF output

•

Support for 1.5V and 3.3V HDA signaling

Two digital microphone inputs (mono, stereo, or

quad microphones)

•

High performance analog mixer

2 adjustable VREF Out pins for analog microphone

bias

•

6 analog ports with port presence detect (5 single

ended, 1 BTL)

•

Analog and digital PC Beep support

Aux Audio Mode ^{(see orderable part numbers for support)}

48-pad QFN RoHS packages

IDT CONFIDENTIAL

V 0.995 01/11

92HD81

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