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PDF STAC9758 Data sheet ( Hoja de datos )
| Número de pieza | STAC9758 | |
| Descripción | (STAC9758 / STAC9759) HIGH-PERFORMANCE 6-CHANNEL AC97 2.3 CODEC | |
| Fabricantes | IDT | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de STAC9758 (archivo pdf) en la parte inferior de esta página. Total 30 Páginas | ||
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DATASHEET
HIGH-PERFORMANCE 6-CHANNEL AC’97
2.3 CODEC WITH UNIVERSAL JACKS™
STAC9758/9759
OVERVIEW
DESCRIPTION
High performance, 6-channel, AC’97 2.3 CODECs with
high Signal-to-Noise ratio and low distortion.
FEATURES
• High performance Σ∆ technology
• 6-Channel AC’97 2.3 CODECs
• 20-bit full duplex stereo ADCs
• 20-bit full duplex DACs
• Headphone drive capability
• SPDIF_IN Support
• SPDIF_OUT Support, including 96 kHz
• ADAT® Optical “Litepipe” Interface
Support
• Universal JacksTM 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’97 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
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
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 JacksTM 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® Optical
“Litepipe” Interface, which provides an 8 channel output for
professional and consumer audio applications.
The STAC9758/9759 can be SoundBlaster® and Windows
Sound System® compatible when used with IDT’s WDM
driver for Windows 98/2K/ME/XP or with Intel/Microsoft
driver included with Windows 2K/ME/XP.
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™
1
HIGH-PERFORMANCE 6-CHANNEL AC’97 2.3 CODEC WITH UNIVERSAL JACKS™
STAC9758/9759
V 1.2 1206
1 page  
STAC9758/9759
HIGH-PERFORMANCE 6-CHANNEL AC’97 2.3 CODEC WITH UNIVERSAL JACKS™
PC AUDIO
16. APPENDIX A: PROGRAMMING REGISTERS ................................................................... 116
17. REVISION HISTORY ........................................................................................................... 118
LIST OF FIGURES
Figure 1. Cold Reset Timing .......................................................................................................................... 17
Figure 2. Warm Reset Timing ........................................................................................................................17
Figure 3. Clocks Timing ................................................................................................................................. 18
Figure 4. Data Setup and Hold Timing .......................................................................................................... 20
Figure 5. Signal Rise and Fall Times Timing ................................................................................................. 20
Figure 6. AC-Link Low Power Mode Timing .................................................................................................. 21
Figure 7. ATE Test Mode Timing ................................................................................................................... 21
Figure 8. Typical Connection Diagram .......................................................................................................... 22
Figure 9. Split Independent Power Supply Operation ................................................................................... 24
Figure 10. AC-Link to its Companion Controller ............................................................................................ 25
Figure 11. CODEC Clock Source Detection .................................................................................................. 26
Figure 12. STAC9758/9759 Powerdown Timing ........................................................................................... 29
Figure 13. Bi-directional AC-Link Frame with Slot assignments .................................................................. 31
Figure 14. AC-Link Audio Output Frame ....................................................................................................... 35
Figure 15. Start of an Audio Output Frame ................................................................................................... 35
Figure 16. STAC9758/9759 Audio Input Frame ........................................................................................... 38
Figure 17. Start of an Audio Input Frame ...................................................................................................... 38
Figure 18. Bi-directional AC-Link Frame with Slot Assignments ................................................................... 43
Figure 19. STAC9758/9759 Mixer Diagram .................................................................................................. 47
Figure 20. Example of STAC9758/9759 Powerdown/Powerup Flow .......................................................... 105
Figure 21. Powerdown/Powerup Flow With Analog Still Active .................................................................. 106
Figure 22. Pin Description Drawing ............................................................................................................. 110
Figure 23. Solder Reflow Profile ................................................................................................................. 114
IDT™
5
HIGH-PERFORMANCE 6-CHANNEL AC’97 2.3 CODEC WITH UNIVERSAL JACKS™
STAC9758/9759
V 1.2 1206
5 Page 
STAC9758/9759
HIGH-PERFORMANCE 6-CHANNEL AC’97 2.3 CODEC WITH UNIVERSAL JACKS™
PC AUDIO
2.1.3. Power Consumption
Parameter
Min Typ Max
Digital Supply Current
+ 3.3 V Digital
- 44 -
Analog Supply Current (at Reset state)
+ 5 V Analog
- 58 -
+ 3.3 V Analog
- 52 -
Power Down Status (individually asserted)
(All PR measurements taken while unmuted.)
All paths unmuted
+5V Analog Supply Current
+3.3V Analog Supply Current
+3.3V Digital Supply Current
-
96
88 -
49
PR0
+5V Analog Supply Current
90
+3.3V Analog Supply Current
-
82 -
+3.3V Digital Supply Current
39
PR1
+5V Analog Supply Current
71
+3.3V Analog Supply Current
-
66 -
+3.3V Digital Supply Current
34
PR2
+5V Analog Supply Current
51
+3.3V Analog Supply Current
-
45 -
+3.3V Digital Supply Current
22
PR3
+5V Analog Supply Current
28
+3.3V Analog Supply Current
-
26 -
+3.3V Digital Supply Current
22
PR4
+5V Analog Supply Current
104
+3.3V Analog Supply Current
-
89 -
+3.3V Digital Supply Current
1.3
PR5
+5V Analog Supply Current
89
+3.3V Analog Supply Current
-
83 -
+3.3V Digital Supply Current
22
PR6
+5V Analog Supply Current
84
+3.3V Analog Supply Current
-
79 -
+3.3V Digital Supply Current
49
PR0 & PR1
+5V Analog Supply Current
+3.3V Analog Supply Current
+3.3V Digital Supply Current
-
65
61 -
22
PR0, PR1, PR2, PR6
+5V Analog Supply Current
+3.3V Analog Supply Current
+3.3V Digital Supply Current
-
12
11 -
22
PR0, PR1, PR2, PR3, PR6
+5V Analog Supply Current
0.8
+3.3V Analog Supply Current
-
0.6
-
+3.3V Digital Supply Current
22
PR0, PR1, PR2, PR3, PR4, PR6 +5V Analog Supply Current
0.8
+3.3V Analog Supply Current
-
0.6
-
+3.3V Digital Supply Current
1.3
For additional power configuration, each DAC pairs can be powered down individually.
Unit
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
IDT™
11
HIGH-PERFORMANCE 6-CHANNEL AC’97 2.3 CODEC WITH UNIVERSAL JACKS™
STAC9758/9759
V 1.2 1206
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet STAC9758.PDF ] | |
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