Stac9752



Integrated Device Technology Electronic Components Datasheet

(STAC9758 / STAC9759) HIGH-PERFORMANCE 6-CHANNEL AC97 2.3 CODEC

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DATASHEET
2.3 CODEC WITH UNIVERSAL JACKS™
OVERVIEW
High performance, 6-channel, AC’97 2.3 CODECs with
FEATURES
• 6-Channel AC’97 2.3 CODECs
• 20-bit full duplex DACs
• SPDIF_IN Support
• ADAT® Optical “Litepipe” Interface
• Universal JacksTM Functionality for jack
• Internal Jack Sensing
• Front/Rear Stereo Microphone
• Up to 5 General Purpose I/Os
• AC’97 2.3 Paging Registers and Analog Plug and
• Energy saving dynamic power modes
• Adjustable VREF_OUT Control
• Independent sample rates for ADC & DACs
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 Σ∆ technology to achieve a
DAC SNR in excess of 90dB. With IDT’s 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
placed on the motherboard, daughter boards, PCI, AMR,
Supported ADC and DAC audio sample rates include
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
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 JacksTM functionality for jack interchangeability.
The GPIOs on the STAC9758/9759 remain available for
advanced configurations. The STAC9758/9759 can sup-
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
The STAC9758/9759 also supports the ADAT® Optical
“Litepipe” Interface, which provides an 8 channel output for
The STAC9758/9759 can be SoundBlaster® and Windows
driver for Windows 98/2K/ME/XP or with Intel/Microsoft
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.
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HIGH-PERFORMANCE 6-CHANNEL AC’97 2.3 CODEC WITH UNIVERSAL JACKS™
V 1.2 1206

STAC9750/9751VALUE-LINE TWO-CHANNEL AC’97 CODECSPC AUDIOIDT™6STAC9750/9751V 5.8 103106VALUE-LINE TWO-CHANNEL AC’97 CODECSisters. The two DACs convert the digital stereo PCM-out content to audio. STAC9750 (STAC9750 / STAC9751) VALUE-LINE TWO-CHANNEL AC97 CODECS Components datasheet pdf data sheet FREE from Datasheet4U.com Datasheet (data sheet) search for integrated circuits (ic), semiconductors and other electronic components such as resistors, capacitors, transistors and diodes.

Sigmatel Stac9752 Driver

Sigmatel stac9752 driver

Stac9758

Integrated Device Technology Electronic Components Datasheet

(STAC9758 / STAC9759) HIGH-PERFORMANCE 6-CHANNEL AC97 2.3 CODEC

No Preview Available !

HIGH-PERFORMANCE 6-CHANNEL AC’97 2.3 CODEC WITH UNIVERSAL JACKS™
TABLE OF CONTENTS
1. DESCRIPTION ........................................................................................................................... 7
1.1. Features ........................................................................................................................................... 8
1.2. Block Diagram ................................................................................................................................... 9
2. CHARACTERISTICS/SPECIFICATIONS ................................................................................10
2.1. Electrical Specifications ................................................................................................................... 10
2.1.1. Absolute Maximum Ratings ............................................................................................... 10
2.1.2. Recommended Operation Conditions ............................................................................... 10
2.1.3. Power Consumption ......................................................................................................... 11
2.1.4. AC-Link Static Digital Specifications ................................................................................. 12
2.1.5. STAC9758 5V Analog Performance Characteristics ........................................................12
2.1.6. STAC9759 3.3V Analog Performance Characteristics .....................................................14
2.2. AC Timing Characteristics ............................................................................................................... 17
2.2.1. Cold Reset ......................................................................................................................... 17
2.2.2. Warm Reset ....................................................................................................................... 17
2.2.3. Clocks ................................................................................................................................ 18
2.2.4. STAC9758/9759 Crystal Elimination Circuit and Clock Frequencies ................................19
2.2.5. Data Setup and Hold ........................................................................................................ 20
2.2.6. Signal Rise and Fall Times ................................................................................................ 20
2.2.7. AC-Link Low Power Mode Timing ..................................................................................... 21
2.2.8. ATE Test Mode ..................................................................................................................21
3. TYPICAL CONNECTION DIAGRAM .......................................................................................22
3.1. Split Independent Power Supply Operation .................................................................................... 23
4. CONTROLLER, CODEC AND AC-LINK .................................................................................25
4.1. AC-Link Physical interface ............................................................................................................... 25
4.2. Controller to Single CODEC ............................................................................................................ 25
4.3. Controller to Multiple CODECs ........................................................................................................ 27
4.3.1. Primary CODEC Addressing ............................................................................................. 27
4.3.2. Secondary CODEC Addressing ........................................................................................ 27
4.3.3. CODEC ID Strapping ......................................................................................................... 28
4.4. Clocking for Multiple CODEC Implementations ............................................................................... 28
4.5. STAC9758/9759 as a Primary CODEC ........................................................................................... 28
4.5.1. STAC9758/9759 as a Secondary CODEC ........................................................................ 28
4.6. AC-Link Power Management ........................................................................................................... 29
4.6.1. Powering down the AC-Link .............................................................................................. 29
4.6.2. Waking up the AC-Link ...................................................................................................... 29
4.6.3. CODEC Reset ................................................................................................................... 30
5. AC-LINK DIGITAL INTERFACE ..............................................................................................31
5.1. Overview ......................................................................................................................................... 31
5.2. AC-Link Serial Interface Protocol .................................................................................................... 32
5.2.1. AC-Link Variable Sample Rate Operation ......................................................................... 33
5.2.2. Variable Sample Rate Signaling Protocol .......................................................................... 33
5.2.3. Primary and Secondary CODEC Register Addressing ...................................................... 34
5.3. AC-Link Output Frame (SDATA_OUT) ............................................................................................ 35
5.3.1. Slot 0: TAG / CODEC ID ................................................................................................... 36
5.3.2. Slot 1: Command Address Port ......................................................................................... 36
5.3.3. Slot 2: Command Data Port ............................................................................................... 37
5.3.4. Slot 3: PCM Playback Left Channel .................................................................................. 37
5.3.5. Slot 4: PCM Playback Right Channel ................................................................................ 37
5.3.6. Slot 5: Modem Line 1 Output Channel .............................................................................. 37
5.3.7. Slot 6 - 11: DAC ................................................................................................................. 37
5.3.8. Slot 12: Audio GPIO Control Channel ............................................................................... 38
5.4. AC-Link Input Frame (SDATA_IN) ................................................................................................. 38
5.4.1. Slot 0: TAG ........................................................................................................................39
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HIGH-PERFORMANCE 6-CHANNEL AC’97 2.3 CODEC WITH UNIVERSAL JACKS™
V 1.2 1206

Stac9721

Stac9752