STAC9766 IDT [Integrated Device Technology], STAC9766 Datasheet - Page 6

• Manufacturer Part Number: STAC9766
• Manufacturer: IDT [Integrated Device Technology]

1. PRODUCT BRIEF
IDT™
TWO-CHANNEL, 20-BIT, AC’97 2.3 CODECS WITH STEREO MICROPHONE AND MIC/JACK SENSING
STAC9766/9767
TWO-CHANNEL, 20-BIT, AC’97 2.3 CODECS WITH STEREO MICROPHONE AND MIC/JACK SENSING
1.1.
1.2.
Features
Description
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IDT's STAC9766/9767 (Revision CC1 and beyond) are general purpose 20-bit, full duplex, audio
CODECs conforming to the analog component specification of AC'97 (Audio CODEC 97 Component
Specification Rev. 2.3). The STAC9766/9767 incorporates IDT's proprietary
achieve a DAC SNR in excess of 103dB. The DACs, ADCs and mixer are integrated with analog
I/Os, which include four analog line-level stereo inputs, two analog line-level mono inputs, two stereo
outputs, and one mono output channel. The STAC9766/9767 includes digital output capability for
support of modern PC systems with an output that supports the SPDIF format. The STAC9766/9767
is a standard 2-channel stereo CODEC. With IDT’s headphone drive capability, headphones can be
driven without an external amplifier. The STAC9766/9767 may be used as a secondary CODEC,
with the STAC9700/21/44/56/08/84/50/66 as the primary, in a multiple CODEC configuration con-
forming to the AC'97 Rev. 2.3 specification. This configuration can provide the true six-channel,
AC-3 playback required for DVD applications. The STAC9766/9767 communicates via the five-wire
(Revision CC1 and beyond)
High Performance
AC’97 Rev 2.3 Complaint
20-bit Full Duplex Stereo ADCs, DACs
Independent Sample Rates for ADCs & DACs
5-Wire AC-Link Protocol Compliance
20-bit SPDIF Output
Full Stereo Microphone Pre-Amp
Internal Jack Sensing on Headphone and Line_Out
Internal Microphone Input Sensing
Digital PC Beep Option
Extended AC’97 2.3 Paging Registers
Adjustable VREF Amplifier
Digital-ready Status
General Purpose I/Os
Crystal Elimination Circuit
Headphone Drive Capability (50 mW)
0dB, 10dB, 20dB, and 30dB Stereo or Mono M icrophone Boost Capability
+3.3V (STAC9767) and +5V (STAC9766) Analog Power Supply Options
Pin Compatible with the STAC9700, STAC9721, STAC9756
100% Pin Compatible with STAC9750 and STAC9752
IDT Surround (SS3D) Stereo Enhancement
Energy Saving Dynamic Power Modes
Multi-CODEC option (Intel AC'97 rev 2.3)
Six Analog Line-level Inputs
103dB SNR LINE-LINE
Technology
6
STAC9766/9767
technology to
PC AUDIO
V 7.4 12/06