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STAC9753A の電気的特性と機能
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STAC9753AのメーカーはIDTです、この部品の機能は「(STAC9752A / STAC9753A) AC97 2.3 CODECS」です。 |
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製品の詳細 ( Datasheet PDF )
| 部品番号 STAC9753A |
| 部品説明 (STAC9752A / STAC9753A) AC97 2.3 CODECS |
| メーカ IDT |
ロゴ |
このページの下部にプレビューとSTAC9753Aダウンロード（pdfファイル）リンクがあります。 Total 30 pages |
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DATASHEET
AC’97 2.3 CODECS WITH STEREO
MICROPHONE & UNIVERSAL JACK
FEATURES
• High Performance Σ∆ Technology
• AC’97 Rev 2.3 Complaint
• 20-bit Full Duplex Stereo ADC & DACs
• Independent Sample Rates for ADC & DACs
• 5-Wire AC-Link Protocol Compliance
• 20-Bit SPDIF Output
• Universal Jacks™
• Full Stereo Microphone Pre-Amp
• Internal Jack Sensing on Headphone & Line_Out
• Internal Microphone Input Sensing
• Digital PC Beep Option
• Extended AC’97 2.3 Paging Registers
• General Purpose I/Os and Crystal Elimination
Circuit
• Headphone Drive Capability (50 mW per channel)
• Switchable Headphone Out (pins 39/41 or 35/36)
• 0dB, 10dB, 20dB and 30dB Microphone Boost
Capability
• +3.3 V (STAC9753A) and +5 V (STAC9752A) Analog
Power Supply Options
• Pin Compatible with STAC9750/52/66
KEY SPECIFICATIONS
• Analog LINE_OUT SNR: 94dB
• Digital DAC SNR: 92dB
• Digital ADC SNR: 85dB
• Full-scale Total Harmonic Distortion: 0.002%
• Crosstalk Between Input Channels: -70dB
• Spurious Tone Rejection: 100dB
• Stereo Microphone Input
RELATED MATERIALS
• Data Sheet
STAC9752A/9753A
• Reference Designs
DESCRIPTION
IDT's STAC9752A/9753A are general purpose 20-bit, full
duplex, audio CODECs conforming to the analog compo-
nent specification of AC'97 (Audio CODEC 97 Component
Specification Rev. 2.3). The STAC9752A/9753A incorpo-
rates IDT's proprietary Σ∆ technology.
The AC’97 CODEC is designed to achieve a DAC SNR in
excess of 94dB. The DACs, ADCs, and mixer are inte-
grated 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 STAC9752A/9753A includes digital input/output capa-
bility for support of modern PC systems, with an output that
supports the SPDIF format. The STAC9752A/9753A is a
standard 2-channel stereo CODEC. With IDT’s headphone
drive capability, headphones can be driven with without an
external amplifier.
The STAC9752A/9753A may be used as a secondary
CODEC, with the STAC9700/21/56/08/84/50/52 as the pri-
mary, in a multiple CODEC configuration conforming to the
AC'97 Rev. 2.3 specification. This configuration can pro-
vide the true six-channel, AC-3 playback required for DVD
applications.
The STAC9752A/9753A communicates via the five-wire
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
STAC9752A/9753A can be placed on a motherboard,
daughter boards, PCI, AMR, CNR, MDC or ACR cards.
The STAC9752A/9753A provides variable sample rate Dig-
ital-to-Analog (DA) and Analog-to-Digital (AD) conversion,
mixing, and analog processing.
Supported audio sample rates include 48KHz, 44.1KHz,
32KHz, 22.05KHz, 16KHz, 11.025KHz, and 8 KHz; addi-
tional rates are supported in the STAC9752A/9753A soft
audio drivers. All ADCs and DACs operate at 20-bit resolu-
IDT™
AC’97 2.3 CODECS WITH STEREO MICROPHONE & UNIVERSAL JACK
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STAC9752A/9753A
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STAC9752A/9753A
AC’97 2.3 CODECS WITH STEREO MICROPHONE & UNIVERSAL JACK
PC AUDIO
11.7. STAC9752A/9753A Filter/References ........................................................................................... 95
11.8. STAC9752A/9753A Power and Ground Signals ........................................................................... 96
11.9. STAC9752A/9753A No Connects ................................................................................................. 96
12. ORDERING INFORMATION ..................................................................................................97
13. PACKAGE DRAWINGS AND PC BOARD LAYOUT INFORMATION .................................98
13.1. 48-Pin LQFP .................................................................................................................................. 98
13.2. 32-Pad QFN .................................................................................................................................. 99
13.3. PC Board Recommendations for 32-pad QFN Package ............................................................. 100
14. SOLDER REFLOW PROFILE ............................................................................................. 101
14.1. Standard Reflow Profile Data ...................................................................................................... 101
14.2. Pb Free Process - Package Classification Reflow Temperatures .............................................. 102
15. APPENDIX A: PROGRAMMING REGISTERS ................................................................... 103
16. REVISION HISTORY ........................................................................................................... 105
IDT™
AC’97 2.3 CODECS WITH STEREO MICROPHONE & UNIVERSAL JACK
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STAC9752A/9753A
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STAC9752A/9753A
AC’97 2.3 CODECS WITH STEREO MICROPHONE & UNIVERSAL JACK
PC AUDIO
1. PRODUCT BRIEF
1.1.
Features
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High performance Σ∆ technology
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
Universal Jacks™
Full Stereo Microphone Pre-Amp
Internal Jack Sensing on Headphone & Line_Out
Internal Microphone Input Sensing
Digital PC Beep Option
Extended AC’97 2.3 Paging Registers
Digital-ready status
General purpose I/Os
Crystal Elimination Circuit
Headphone drive capability (50 mW per channel)
Switchable Headphone Out (pins 39/41 or 35/36)
0, 10db, 20db, and 30 dB microphone boost capability
+3.3 V (STAC9753A) and +5 V (STAC9752A) analog power supply options
Pin compatible with STAC9700/21/56
100% compatible with STAC9750/52/66
IDT Surround (SS3D) Stereo Enhancement
Energy saving dynamic power modes
Multi-CODEC option (Intel AC'97 rev 2.3)
94dB SNR LINE-LINE
1.2. Description
IDT's STAC9752A/9753A 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
STAC9752A/9753A incorporates IDT's proprietary Σ∆ technology to achieve a DAC SNR in excess
of 92dB. 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 STAC9752A/9753A include digital output capability for support of modern PC systems with an
output that supports the SPDIF format.
IDT™
AC’97 2.3 CODECS WITH STEREO MICROPHONE & UNIVERSAL JACK
6
STAC9752A/9753A
V 1.5 1206
6 Page
合計 : 30 ページ |
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| 部品番号 | 部品説明 | メーカ |
| STAC9753 | (STAC9752 / STAC9753) TWO-CHANNEL AC97 2.3 CODECS | IDT |
| STAC9753A | (STAC9752A / STAC9753A) AC97 2.3 CODECS | IDT |