92HD99B Datasheet, PDF (10/225 Pages) Integrated Device Technology – SINGLE CHIP PC AUDIO SYSTEM

92HD99
SINGLE CHIP PC AUDIO SYSTEM, CODEC+SPEAKER AMPLIFIER+CAPLESS HP+LDO
1. DESCRIPTION
1.1. Overview
The 92HD99 audio CODEC provides stereo 24- bit, full duplex resolution supporting sample rates up
to 192kHz by the DAC and ADC.
An integrated BTL stereo amplifier is ideal for driving 4ohm or 8ohm integrated speakers in mobile
and ultra-mobile computers. For desktop computers or mobile computers using only one speaker,
the BTL output stage may be configured to support a single mono speaker.
Port presence detect capabilities allow the CODEC to detect when audio devices are connected to
the CODEC. The fully parametric Internal EQ can be initiated upon headphone jack insertion and
removal for protection of notebook speakers.
The 92HD99 audio CODEC operates with a 3.3V digital supply and a 5V (4.75V allowed when using
external voltage regulator) analog supply. It allows for 1.5V and 3.3V HDA signaling; the correct sig-
nalling level is selected dynamically based on the power supply voltage on the DVDD-IO pin.
The 92HD99 audio CODEC is offered in a 40-pin QFN Environmental (ROHS) package.
1.2.
Orderable Part Numbers
92HD99B1X5NDGXyyX
92HD99B2X5NDGXyyX
92HD99B3X5NDGXyyX
92HD99B4X5NDGXyyX
HDA 3.3V, Aux mode
HDA 3.3V, No Aux mode
HDA 1.5V, Aux mode
HDA 1.5V, No Aux mode
yy = silicon stepping/revision, contact sales for current data.
Add an “8” to the end for tape and reel delivery.
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©2009 INTEGRATED DEVICE TECHNOLOGY, INC.
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92HD99