92hd91 Integrated Device Technology, 92hd91 Datasheet

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92hd91

Manufacturer Part Number
92hd91
Description
Single Chip Pc Audio System Codec+speaker Amplifier+capless Hp+ldo
Manufacturer
Integrated Device Technology
Datasheet

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SINGLE CHIP PC AUDIO SYSTEM
CODEC+SPEAKER AMPLIFIER+CAPLESS HP+LDO
Description
The 92HD91 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 92HD91 enables the smallest
PCB footprint with the lowest system BOM count and cost.
92HD91 provides high quality HD Audio capability to
notebook and business desktop PC applications.
©2009 INTEGRATED DEVICE TECHNOLOGY, INC.
IDT™ CONFIDENTIAL
Preliminary Datasheet
1
Features
4 Channels (2 stereo DACs and 2 stereo ADCs)
with 24-bit resolution
2W/channel Class-D stereo BTL speaker amplifier
@ 4 ohms and 4.75V
Capless headphone amplifier with charge
pump/LDO
Combo Jack Support allowing for dual-function
headphone and headset detection
Speaker Protection
Full HDA015-B low power support
Internal digital core LDO voltage regulator
Microsoft WLP desktop premium logo compliant
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 for playback and record
48-pad QFN RoHS packages
Supports full-duplex stereo audio and simultaneous
VoIP
Provides a mono output
2.1 audio crossover support
10 band hardware parametric equalizer
Hardware compressor limiter
Dedicated BTL high pass filter
Mono bandpass filter
DATASHEET
92HD91
V 0.91 10/10
92HD91

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