92hd75b Integrated Device Technology, 92hd75b Datasheet - Page 10

• Manufacturer Part Number: 92hd75b
• Description: Four Channel Hd Audio Codec
• Manufacturer: Integrated Device Technology

4-CHANNEL HD AUDIO CODECS OPTIMIZED FOR LOW POWER
1. DESCRIPTION
92HD75B
4-CHANNEL HD AUDIO CODECS OPTIMIZED FOR LOW POWER
92HD75B1X5NLGXyyX
92HD75B1X3NLGXyyX
92HD75B2X5NLGXyyX
92HD75B2X3NLGXyyX
92HD75B3X5NLGXyyX
92HD75B3X3NLGXyyX
92HD75B4X5NLGXyyX
92HD75B4X3NLGXyyX
1.1.
1.2.
Overview
Orderable Part numbers
The 92HD75B is a high fidelity, 4-channel audio codec compatible with the Intel High Definition (HD)
Audio Interface. The 92HD75B codecs provide high quality, HD Audio capability to notebook and
cost sensitive desktop PC applications.
The higher performance and quality of IDT’s audio solutions brings consumer electronics level per-
formance to notebook and desktop PCs. 92HD75B is designed to meet or exceed premium logo
requirements for Microsoft’s Windows Logo Program (WLP) 3.09 and revisions 4 as indicated in
WLP 3.09.
The 92HD75B provides stereo 24-bit, full duplex resolution supporting sample rates up to 192kHz by
the DAC and ADC. The 92HD75B SPDIF outputs support sample rates of 192kHz, 96kHz, 88.2kHz,
48kHz, and 44.1kHz. Additional sample rates are supported by the driver software.
The 92HD75B supports a wide range of mobile and desktop 4 channel configurations. The 2 inde-
pendent SPDIF output interfaces provide connectivity to Consumer Electronic equipment like Dolby
Digital decoders, powered speakers, mini disk drives or to a home entertainment system. Simulta-
neous WLP compliant HDMI and SPDIF output is possible. All analog input pairs support LINE_IN
and MIC.
MIC inputs can be programmed with 0/10/20/30dB boost. (40dB boost is available using the IDT
driver.) For more advanced configurations, the 92HD75B has up to 8 General Purpose I/O (GPIO).
The port presence detect capabilities allow the codecs to detect when audio devices are connected
to the codec. The fully parametric IDT SoftEQ can be initiated or disabled upon headphone jack
removal and insertion for protection of notebook speakers.
The 92HD75B operates with a 3.3V digital supply and either 3.3V, 4V, 4.75V or 5V analog supply. It
can also work with 1.5V and 3.3V HDA signaling; the correct signalling level is selected dynamically
based on the power supply voltage on the DVDD-IO pin in 48 pad package or as an orderable option
with 32 pad packages.
Available in a 32-pad QFN or 48-pad QFN Environmental (ROHS) packages.
delivery. Min/Mult order quantitiy 2ku for 48QFN, 2.5ku for 32QFN.
yy = silicon stepping/revision, contact sales for current data. Add an “8” to the end for tape and reel
Pico, 32QFN, 5 port, 5V Analog, 1.5V HD Audio signaling
Pico, 32QFN, 5 port, 3.3V Analog, 1.5V HD Audio signaling
Pico, 32QFN, 5 port, 5V Analog, 3.3V HD Audio signaling
Pico, 32QFN, 5 port, 3.3V Analog, 3.3V HD Audio signaling
Pico, 48QFN, 6 port, 5V Analog, 3.3V HD Audio signaling
Pico, 48QFN, 6 port, 3.3V Analog, 3.3V HD Audio signaling
Pico, 48QFN, 6 port, 5V Analog, 1.5V HD Audio signaling
Pico, 48QFN, 6 port, 3.3V Analog, 1.5V HD Audio signaling
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92HD75B
PC AUDIO
V 1.0 01-09