92HD81B1X5NLGXYYX 데이터 시트보기 (PDF) - Integrated Device Technology

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92HD81B1X5NLGXYYX

SINGLE CHIP PC AUDIO SYSTEM CODEC+SPEAKER AMPLIFIER+CAPLESS HP+LDO

Integrated Device Technology 

SINGLE CHIP PC AUDIO SYSTEM

CODEC+SPEAKER AMPLIFIER+CAPLESS HP+LDO

Description

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.

The high integration of the 92HD81 enables the smallest

PCB footprint with the lowest system BOM count and cost.

The integrated high-pass filter allows for speaker

protection.

The 92HD81 provides high quality HD Audio capability to

notebook and business desktop PC applications.

DATASHEET

92HD81

Features

• 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

• Two headphone amplifiers

• One capless and one non-capless retaskable

• Internal core voltage regulator

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

• +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

1

©2009 INTEGRATED DEVICE TECHNOLOGY, INC.

V 0.995 01/11

92HD81

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