IDTSTAC9272D5TAEB4X IDT, Integrated Device Technology Inc, IDTSTAC9272D5TAEB4X Datasheet - Page 19

• Manufacturer Part Number: IDTSTAC9272D5TAEB4X
• Manufacturer: IDT, Integrated Device Technology Inc

Specifications of IDTSTAC9272D5TAEB4X

• Single Supply Voltage (typ): 3.3V
• Single Supply Voltage (min): 3.135V
• Single Supply Voltage (max): 3.465V
• Package Type: TQFP
• Lead Free Status / Rohs Status: Compliant

1. DESCRIPTION
IDT™
STAC9271/9274
10-CHANNEL HIGH DEFINITION AUDIO CODEC
10-CHANNEL HIGH DEFINITION AUDIO CODEC
The STAC9271/74 are 10-channel audio CODECs compatible with the Intel High Definition (HD)
Audio Interface (formerly known as “Azalia”). The STAC9271/74 CODECs provide high quality, HD
Audio capability to notebook and cost sensitive desktop PC applications.
The STAC9271/74 incorporate IDT's proprietary technology to achieve a DAC SNR up to 105dB.
The higher performance and quality of IDT’s audio solutions brings consumer electronics level per-
formance to the notebook, desktop and media center PC.
The STAC9271/74 provide 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 KHz, 48 KHz and 44.1
KHz plus SPDIF OUT supports 88.2 KHz. Additional sample rates are supported by the driver soft-
ware.
The STAC9271/74 support all desired ten channel configurations, including switchable Headphone
Out, and Universal JacksTM func¬tionality 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
STAC9271/74 have up to five General Purpose I/O (GPIO) pins. Also provides a single ended CD
input for compatibility with DRM solutions and to support leg¬acy OS issues.
STAC9271/74 integrates a headphone amplifiers 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 reference design for circuit implementation details.
The STAC9271/74 can operate with a 3.3 V digital supply and a 5 V analog supply.
The STAC9271/74 are available in a 48-pin LQFP Environmental (ROHS) packages.
IDT CONFIDENTIAL
19
STAC9271/9274
PC AUDIO
V 1.1 01/08