92hd87b4x5ndg Integrated Device Technology, 92hd87b4x5ndg Datasheet
92hd87b4x5ndg
Manufacturer Part Number
92hd87b4x5ndg
Description
Single Chip Pc Audio System Codec+stereo Speaker Amplifier+capless Hp+ldo
Manufacturer
Integrated Device Technology
Datasheet
1.92HD87B4X5NDG.pdf
(215 pages)
SINGLE CHIP PC AUDIO SYSTEM
CODEC+STEREO SPEAKER AMPLIFIER+CAPLESS HP+LDO
Description
The 92HD87 single-chip audio system is a low power opti-
mized, high fidelity, 4-channel audio codec with integrated
speaker amplifier, capless headphone amplifier, and low
drop out voltage regulator. The high integration of the
92HD87 and the 40QFN package enables the smallest
PCB footprint with the lowest system BOM count and cost.
The 92HD87 provides high quality HD Audio capability to
notebook and business desktop PC applications..
SINGLE CHIP PC AUDIO SYSTEM, CODEC+SPEAKER AMPLIFIER+CAPLESS HP+LDO
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 stereo speaker amplifier @ 4 ohms
and 4.75V
Two headphone amplifiers
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Internal LDO for digital core supply
+5 V analog power supply option
Full HDA015-B low power support
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Microsoft WLP premium logo compliant, as
defined in WLP 3.9
Support for 1.5V and 3.3V HDA signaling
Digital microphone inputs (mono or stereo)
High performance analog mixer
2 adjustable VREF Out pins for analog microphone
bias
5 analog ports with port presence detect + stereo
speaker differential output)
Analog and digital PC Beep support
40-pad QFN RoHS package
Supports full-duplex stereo audio and simultaneous
VoIP
One capless and one non-capless retaskable
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
92HD87
DATASHEET
92HD87
V 0.95 10/10
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