92hd90 Integrated Device Technology, 92hd90 Datasheet
92hd90
Manufacturer Part Number
92hd90
Description
Single Chip Pc Audio System Codec+speaker Amplifier+capless Hp+ldo+i2s
Manufacturer
Integrated Device Technology
Datasheet
1.92HD90.pdf
(298 pages)
SINGLE CHIP PC AUDIO SYSTEM
CODEC+SPEAKER AMPLIFIER+CAPLESS HP+LDO+I2S
Description
The 92HD90 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.
Dual High Definition Audio and I2S Interfaces allow for
docking audio support with a single codec.
The integrated combo jack allows for dual-function
headphone and headset detection.
The integrated high-pass and band-pass filters allow for
Harware EQ and speaker protection.
The high integration of the 92HD90 enables the smallest
PCB footprint with the lowest system audio BOM count and
cost.
The 92HD90 provides high quality HD Audio capability to
notebook and business desktop PC applications.
©2009 INTEGRATED DEVICE TECHNOLOGY, INC.
IDT CONFIDENTIAL
Preliminary Datasheet
1
Features
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4 Channels (2 stereo DACs and 2 stereo ADCs)
with 24-bit resolution
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2W/channel Class-D stereo BTL speaker amplifier
@ 4 ohms and 4.75V
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Capless headphone amplifier with charge
pump/LDO)
I2S support (2 ports)
Combo Jack Support allowing for dual-function
headphone and headset detection
Speaker Protection
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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
4 analog ports with port presence detect (3 single
ended, 1 BTL)
Analog and digital PC Beep support
48-pad QFN RoHS package
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
92HD90
V 0.91 10/10
92HD90
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