92HD700 Datasheet, PDF (12/181 Pages) Integrated Device Technology – 10-CHANNEL HIGH DEFINITION AUDIO CODEC

92HD700
10-CHANNEL HIGH DEFINITION AUDIO CODEC
PC AUDIO
1. DESCRIPTION
The 92HD700 is a high fidelity, 10-channel audio CODEC compatible with the Intel High Definition
(HD) Audio Interface. The 92HD700 CODEC provides high quality HD Audio capability to notebook
and cost sensitive desktop PC applications.
The 92HD700 incorporates IDT's proprietary technology to achieve a DAC SNR of 95dB. The higher
performance and quality of IDT’s audio solutions brings consumer electronics level performance to
the notebook, desktop and media center PC.
The 92HD700 provides stereo, 24-bit, full duplex resolution, supporting sample rates up to 192 KHz
by the DAC and ADC. The SPDIF In/Out support sample rates of 96 KHz, 48 KHz and 44.1 KHz,
plus SPDIF OUT supports 88.2 KHz. Additional sample rates are supported by the driver software.
The 92HD700 supports all desired ten-channel configurations, including switchable Headphone 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, mini
disk drives or a home entertainment systems. All analog I/O pairs support LINE_IN, LINE_OUT and
MIC.
MIC inputs can be programmed with 0/10/20/30/40dB boost. For more advanced configurations, the
92HD700 has up to three General Purpose I/O (GPIO) pins. The 92HD700 also provides a sin-
gle-ended CD input for compatibility with DRM solutions and to support legacy OS issues.
The 92HD700 integrates a headphone amplifier on Ports A, B and D. The headphone amplifier is
dedicated to these three outputs for increased flexibility, enhanced user experience, and reduced
implementation costs.
The Universal Jack™ feature allows the CODECs to detect when audio devices are plugged in, and
for the CODECs to be reconfigured to support these devices regardless of which port they are
plugged into. SPDIF input sensing is also supported. The fully parametric IDT SoftEQ can be initi-
ated/disabled upon headphone jack insertion/removal for protection of notebook speakers. Note:
The Jack Detect circuit and component selection are critical for accurate detection of audio jacks on
individual ports. Please see the IDT 92HD700 reference design for circuit implementation details.
The 92HD700 operates with a 3.3 V digital supply and a 5 V analog supply.
The 92HD700 is available in 48-pin LQFP Environmental (ROHS) packages.
IDT™ 10-CHANNEL HIGH DEFINITION AUDIO CODEC
12
IDT CONFIDENTIAL
92HD700
V 1.2 112006