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STAC9759 Datasheet

  • STAC9759

  • HIGH-PERFORMANCE 6-CHANNEL AC’97 2.3 CODEC WITH UNIVERSAL J...

  • 119頁(yè)

  • IDT

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DATASHEET
HIGH-PERFORMANCE 6-CHANNEL AC鈥?7
2.3 CODEC WITH UNIVERSAL JACKS鈩?/div>
OVERVIEW
High performance, 6-channel, AC鈥?7 2.3 CODECs with
high Signal-to-Noise ratio and low distortion.
STAC9758/9759
DESCRIPTION
IDT's STAC9758/9759 are general purpose 20-bit, full
duplex, 6-Channel audio CODECs conforming to the ana-
log component specification of AC '97 (Audio Codec 97
Component Specification Rev. 2.3). The STAC9758/9759
incorporates IDT's proprietary
危鈭?/div>
technology to achieve a
DAC SNR in excess of 90dB. With IDT鈥檚 headphone drive
capability, headphones can be driven without an external
amplifier. The STAC9758/9759 communicates via the five
AC-Link to any digital component of AC '97, providing flexi-
bility in the audio system design. Packaged in an AC '97
compliant 48-pin TQFP, the STAC9758/9759 can be
placed on the motherboard, daughter boards, PCI, AMR,
CNR, MDC or ACR cards.
Supported ADC and DAC audio sample rates include
96kHz, 48kHz, 44.1kHz, 32kHz, 22.05kHz, 16kHz,
11.025kHz, and 8 kHz; additional rates are supported in
the STAC9758/9759 soft audio drivers. All ADCs and
DACs operate at 20-bit resolution. SPDIF_OUT supported
sample rates include 96kHz, 48kHz, 44.1kHz and
32kHz. SPDIF_IN supports 48kHz and 44.1kHz.
The STAC9758/9759 includes
internal
jack sensing using
proprietary IDT current and impedance-sensing tech-
niques. The impedance load on any of the inputs or outputs
can be detected. The STAC9758/9759 also supports
Uni-
versal Jacks
TM
functionality for jack interchangeability.
The GPIOs on the STAC9758/9759 remain available for
advanced configurations. The STAC9758/9759 can sup-
port up to 5 GPIOs.
The STAC9758/9759 is designed primarily to support
6-channel audio. Additionally, the STAC9758/9759 pro-
vides for a stereo enhancement feature, IDT Surround 3D
(SS3D).
The STAC9758/9759 also supports the ADAT
廬
Optical
鈥淟itepipe鈥?Interface, which provides an 8 channel output for
professional and consumer audio applications.
The STAC9758/9759 can be SoundBlaster
廬
and Windows
Sound System
廬
compatible when used with IDT鈥檚 WDM
driver for Windows 98/2K/ME/XP or with Intel/Microsoft
driver included with Windows 2K/ME/XP.
FEATURES
鈥?/div>
High performance
危鈭?/div>
technology
鈥?/div>
6-Channel AC鈥?7 2.3 CODECs
鈥?/div>
20-bit full duplex stereo ADCs
鈥?/div>
20-bit full duplex DACs
鈥?/div>
Headphone drive capability
鈥?/div>
SPDIF_IN Support
鈥?/div>
SPDIF_OUT Support, including 96 kHz
鈥?/div>
ADAT
廬
Optical 鈥淟itepipe鈥?Interface
Support
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
Universal Jacks
TM
Functionality for jack
interchangeability
Internal
Jack Sensing
Crystal Elimination Circuit
Front/Rear Stereo Microphone
96 kHz DAC Playback support
Up to 5 General Purpose I/Os
Digital and Analog PC BEEP
AC鈥?7 2.3 Paging Registers and Analog Plug and
Play Capability
Energy saving dynamic power modes
>90 dB SNR and >-90dBV THD+N
Adjustable VREF_OUT Control
Pin compatible with 2-Channel CODECs
Independent sample rates for ADC & DACs
+3.3 V & +5 V analog power supply options
SoundBlaster is a registered trademark of Creative Labs.
Windows is a registered trademark of Microsoft Corporation.
ADAT Optical is a registered trademark of Alesis Corporation.
IDT鈩?/div>
1
STAC9758/9759
V 1.2 1206
HIGH-PERFORMANCE 6-CHANNEL AC鈥?7 2.3 CODEC WITH UNIVERSAL JACKS鈩?/div>

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