92hd005 Integrated Device Technology, 92hd005 Datasheet - Page 12
92hd005
Manufacturer Part Number
92hd005
Description
Four Channel Hd Audio Codec
Manufacturer
Integrated Device Technology
Datasheet
1.92HD005.pdf
(190 pages)
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1. DESCRIPTION
IDT™
4-CHANNEL HD AUDIO CODEC WITH QUAD DIGITAL MICROPHONE INTERFACE
92HD005/92HD005D
4-CHANNEL HD AUDIO CODEC WITH QUAD DIGITAL MICROPHONE INTERFACE
1.1.
Overview
The 92HD005/92HD005D are high fidelity, 4-channel HD Audio CODECs that enable 2.0 Audio with
simultaneous real-time communication such as VoIP, conferencing, voice command and control, etc.
Up to four digital microphones are supported enabling high quality voice input for increased usability
of voice applications.
The 92HD005/92HD005D incorporate IDT's proprietary SD technology to achieve a DAC SNR of
90dB. The higher performance and quality of IDT’s audio solutions brings consumer electronics level
performance to the notebook, desktop and media center PC.
The 92HD005/92HD005D provide stereo, 24-bit, full duplex resolution, supporting sample rates up
to 192 KHz by the DAC and ADC. The 92HD005/92HD005D SPDIF In/Out supports sample rates of
96 KHz, 48 KHz and 44.1 KHz plus SPDIF OUT supports 88.2 KHz and 192 KHz. Additional sample
rates are supported by the driver software.
The 92HD005/92HD005D support all desired four channel configurations, including switchable
Headphone (HP) Out and Universal Jacks™ functionality for jack detection and re-tasking. The
SPDIF interface provides connectivity to consumer electronic equipment like Dolby Digital decoders,
powered speakers and mini-disk drives, or to a home entertainment system. All analog I/O pairs sup-
port LINE_IN, LINE_OUT and MIC. (Port D only supports fixed-function microphone.)
MIC inputs can be programmed with 0/10/20/30/40dB boost. For more advanced configurations, the
92HD005/92HD005D have five General Purpose I/O (GPIO) pins. The 92HD005/92HD005D also
provide single ended CD input for compatibility with DRM solutions and to support legacy OS issues.
The 92HD005/92HD005D integrate two headphone amplifiers which are available on Ports A and D.
The headphone amplifiers are dedicated to these two outputs for increased flexibility, enhanced user
experience, and reduced implementation costs.
The Universal Jack capabilities allow the CODECs to detect when audio devices are connected, and
allow the CODECs to be reconfigured to support these devices regardless of which port they are
connected to. SPDIF input sensing is also supported. The fully parametric IDT SoftEQ can be initi-
ated upon headphone jack insertion and removal for protection of notebook speakers.
The 92HD005/92HD005D operate with a 3.3 V digital supply and either 3.3 V or 5 V analog supply.
They also support 1.5 V and 3.3 V HDA signaling; the correct voltage is selected dynamically based
on the value of the appropriate pin.
The 92HD005/92HD005D are available in a 48-pin LQFP or a 48-pad QFN Environmental (ROHS)
package.
12
92HD005/92HD005D
PC AUDIO
V 1.1 4/08
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