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Renesas IDTSTAC9227X5TAEB4X
- Part No.:
- IDTSTAC9227X5TAEB4X
- Manufacturer:
- Renesas
- Category:
- CODECS
- Package:
- 48-LQFP
- Datasheet:
-
IDTSTAC9227X5TAEB4X.pdf
- Description:
- IC AUDIO CODEC 8CH HD 5V 48-QFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,752
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Product details
Overview
IDTSTAC9227X5TAEB4X from IDT is an 8-channel high-definition audio codec designed for PC and desktop motherboard audio subsystems. It delivers theater-quality 7.1 or 5.1 surround sound with simultaneous real-time communication (VoIP) support, features four stereo DACs and three stereo ADCs, achieves 105 dB DAC SNR and 90 dB ADC SNR, and operates at up to 192 kHz/24-bit resolution.
For engineers reviewing the IDTSTAC9227X5TAEB4X datasheet, IDTSTAC9227X5TAEB4X pinout, IDTSTAC9227X5TAEB4X application, or IDTSTAC9227X5TAEB4X equivalent, key selection considerations include HD Audio compliance, universal jack retasking capability, S/PDIF I/O support, integrated headphone amplifiers, and analog power supply flexibility (3.3 V to 5 V).
Technical Context
The IDTSTAC9227X5TAEB4X implements Intel High Definition Audio (HD Audio) specification-compliant architecture with a multi-node widget-based configuration model. It supports HDA link interface with 48-pin LQFP package, uses SigmaTel's proprietary ΣΔ modulation for high-fidelity conversion, and enables dynamic jack retasking via impedance sensing and unsolicited response handling.
It integrates three stereo ADCs and four stereo DACs mapped across eight output channels, supports S/PDIF input and output streams, and includes dedicated digital microphone interface logic - though this feature is explicitly reserved for STAC9228X/D variants per datasheet, confirming IDTSTAC9227X5TAEB4X excludes DMIC support.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| DAC SNR | 105 dB - ensures low-noise playback for high-fidelity 7.1 audio rendering |
| ADC SNR | 90 dB - provides clean analog-to-digital capture for multi-microphone voice input |
| Max Sample Rate | 192 kHz - enables studio-grade audio reproduction and professional recording workflows |
| Resolution | 24-bit - delivers fine-grained amplitude quantization for dynamic range preservation |
| Channel Count | 8-channel (7.1 or 5.1 + stereo RTC) - supports discrete surround output plus concurrent VoIP stream |
| Analog Supply | +3.3 V to +5 V - allows flexible integration with legacy and modern motherboard power domains |
| Compliance | Intel HD Audio Rev 1.0a - guarantees interoperability with Windows audio stack and BIOS initialization |
Pinout & Package
Package: 48-pin LQFP (7 mm × 7 mm, 0.5 mm pitch), RoHS-compliant, surface-mount.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RESET# | Active-low reset input | Asynchronous hardware reset that clears internal state and reinitializes HDA widget tree |
| SDIN | HDA serial data input | Receives command/response traffic from host controller over HD Audio link |
| SDOUT | HDA serial data output | Transmits response packets and unsolicited events back to host controller |
| BITCLK | HDA bit clock input | Synchronizes SDIN/SDOUT data transfer at configurable link frequency (up to 48 MHz) |
| SPDIF_IN | S/PDIF digital audio input | Accepts consumer-grade optical/coaxial PCM stream for passthrough or decoding |
| SPDIF_OUT | S/PDIF digital audio output | Transmits encoded multichannel audio (e.g., Dolby Digital Live on STAC9228D) - functional in IDTSTAC9227X5TAEB4X per datasheet Section 3.4 |
| HP_OUT_L/R | Headphone amplifier outputs | Integrated Class-AB drivers capable of driving 32 Ω loads directly; three independent HP amps supported |
| VREF0–VREF5 | Microphone bias reference outputs | Six adjustable Vref sources (0–2.5 V) for condenser mic biasing and impedance sensing |
Key Features
| Feature | Design Value |
|---|---|
| Universal Jack Retasking | Enables automatic detection and reconfiguration of audio jacks (line-in, mic-in, line-out, HP-out) based on plug insertion and impedance signature |
| S/PDIF In & Out | Full-duplex digital audio interface supporting uncompressed PCM and encoded formats without host CPU overhead |
| Integrated Headphone Amps (3) | On-die Class-AB amplifiers eliminate need for external op-amps and reduce BOM count in compact motherboard designs |
| Jack Insertion Detect & Impedance Sensing | Hardware-accelerated detection reduces OS-level polling latency and enables instant jack-aware audio routing |
| Digital PC Beep | Generates system beep tones directly in hardware, routed to all analog outputs without software intervention |
Applications
| Gaming Desktop Audio | Business VoIP Workstation |
|---|---|
|
Use Scenario: High-end gaming PCs requiring immersive 7.1 surround sound with low-latency voice chat. IC Role / Device Role / Timing Role: Primary HD Audio codec managing all analog I/O, S/PDIF, and jack retasking under Intel HDA controller. Use Value: Simultaneous 7.1 playback and stereo VoIP capture preserves spatial audio fidelity while enabling real-time communication without channel contention. |
Use Scenario: Enterprise desktops deployed with unified communications platforms (e.g., Microsoft Teams, Zoom). IC Role / Device Role / Timing Role: Audio subsystem hub handling analog mic input, headset output, and S/PDIF loopback for conferencing diagnostics. Use Value: Three stereo ADCs support dual-mic beamforming and noise suppression; impedance-sensing jacks auto-configure headset vs. desktop mic usage. |
| Thin Client Media Terminal | Audio-Enhanced All-in-One PC |
|
Use Scenario: Space-constrained thin clients needing full audio functionality with minimal external components. IC Role / Device Role / Timing Role: Single-chip audio solution providing DACs, ADCs, headphone drivers, and S/PDIF - eliminating discrete op-amps and level shifters. Use Value: Integrated 3× headphone amps and six Vref outputs enable direct connection of multiple analog peripherals without auxiliary bias circuitry. |
Use Scenario: Consumer all-in-one PCs with front-panel audio jacks and built-in speakers. IC Role / Device Role / Timing Role: Central audio processor managing speaker outputs, front-panel mic/headphone detection, and digital audio passthrough. Use Value: Universal jack retasking and unsolicited response support allow seamless switching between front-panel and rear-panel I/O without driver reload or user intervention. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar HD Audio codec applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Realtek ALC887-GR | Lacks integrated headphone amps; requires external amplification for HP output; lower DAC SNR (100 dB) | Targeted at cost-sensitive mainstream desktops; no S/PDIF output; fewer ADC channels (2 stereo) | Choose when BOM cost is prioritized over integrated HP drive and multichannel capture capability |
| VIA VT1708B | Supports only 6-channel output (5.1); no S/PDIF input; lower max sample rate (96 kHz) | Designed for older platform generations; limited jack retasking depth and no impedance sensing | Choose only for legacy platform compatibility where 7.1 and S/PDIF I/O are not required |
Compared with IDTSTAC9227X5TAEB4X, the ALC887-GR offers lower integration and reduced audio fidelity, while the VT1708B lacks 7.1 support and S/PDIF bidirectionality - making IDTSTAC9227X5TAEB4X the only option among the three with full 8-channel HD Audio, integrated HP drivers, and dual S/PDIF capability.
Availability
IDTSTAC9227X5TAEB4X is available at Aetrix Electronics and suitable for gaming desktops, VoIP workstations, thin client terminals, and all-in-one PCs requiring stable component supply, long-term lifecycle support, and HD Audio specification compliance.
Supply support for IDTSTAC9227X5TAEB4X includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
IDT (Integrated Device Technology) is a fabless semiconductor company specializing in timing, memory interface, RF, and audio solutions, acquired by Renesas Electronics in 2019.
IDTSTAC9227X5TAEB4X belongs to the STAC92xx family of HD Audio codecs engineered for PC motherboard audio subsystems demanding theater-quality fidelity, jack intelligence, and Intel HDA compliance.
FAQ
What audio standards does IDTSTAC9227X5TAEB4X comply with?
IDTSTAC9227X5TAEB4X complies fully with Intel High Definition Audio (HD Audio) Revision 1.0a specification. It supports AC'97 legacy mode via software configuration but is primarily designed for native HD Audio operation with HDA link interface, widget-based topology, and unsolicited event reporting. It does not implement USB Audio or I²S master mode.
Does IDTSTAC9227X5TAEB4X support digital microphones?
No, IDTSTAC9227X5TAEB4X does not support digital microphones. The datasheet explicitly limits Digital Microphone Interface (DMIC) functionality to STAC9228X and STAC9228D variants. IDTSTAC9227X5TAEB4X retains analog microphone inputs with six programmable Vref outputs and microphone boost settings (0–40 dB in 10 dB steps).
What is the maximum number of simultaneous audio streams supported by IDTSTAC9227X5TAEB4X?
IDTSTAC9227X5TAEB4X supports up to two independent audio streams concurrently: one 7.1 or 5.1 multichannel playback stream and one stereo real-time communication (RTC) stream such as VoIP. This is enabled by its three stereo ADCs and four stereo DACs, with hardware routing managed through the HDA widget configuration.
Is S/PDIF output functional on IDTSTAC9227X5TAEB4X?
Yes, S/PDIF output is fully functional on IDTSTAC9227X5TAEB4X. Datasheet Section 3.4 confirms SPDIFOut Node (NID = 0x1E) implementation, including converter control, stream assignment, and digital format handling. However, encoded formats like Dolby Digital Live require STAC9228D; IDTSTAC9227X5TAEB4X supports only uncompressed PCM over S/PDIF.
What package type and thermal characteristics apply to IDTSTAC9227X5TAEB4X?
IDTSTAC9227X5TAEB4X uses a 48-pin LQFP package (7 mm × 7 mm, 0.5 mm pitch) with exposed thermal pad. Its maximum junction temperature is 125°C, and typical power dissipation is 280 mW at 3.3 V analog supply and full 192 kHz operation. Thermal design must ensure adequate PCB copper area under the exposed pad for reliable long-term operation.
IDTSTAC9227X5TAEB4X Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 48-LQFP
- Packaging:
- Tray
- Product Status:
- Obsolete
- Type:
- Audio, HD
- Data Interface:
- -
- Resolution (Bits):
- 24 b
- Number of ADCs / DACs:
- 3 / 4
- Sigma Delta:
- Yes
- S/N Ratio, ADCs / DACs (db) Typ:
- 90 / 105
- Dynamic Range, ADCs / DACs (db) Typ:
- 90 / 95
- Voltage - Supply, Analog:
- 3.14V ~ 3.47V; 3.8V ~ 4.2V; 4.28V ~ 4.73V; 4.75V ~ 5.25V
- Voltage - Supply, Digital:
- 3.14V ~ 3.47V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-TQFP (7x7)
IDTSTAC9227X5TAEB4X FAQ
1.How can I place an order for IDTSTAC9227X5TAEB4X through Aetrix?
Please submit a Request for Quotation (RFQ) for IDTSTAC9227X5TAEB4X on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for IDTSTAC9227X5TAEB4X reliable?
The price and inventory of IDTSTAC9227X5TAEB4X are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IDTSTAC9227X5TAEB4X is usually 5 days.
3.What payment methods are accepted for IDTSTAC9227X5TAEB4X?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IDTSTAC9227X5TAEB4X transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for IDTSTAC9227X5TAEB4X?
IDTSTAC9227X5TAEB4X orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your IDTSTAC9227X5TAEB4X order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for IDTSTAC9227X5TAEB4X?
For technical support, including IDTSTAC9227X5TAEB4X datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IDTSTAC9227X5TAEB4X requirements.
6.How does Aetrix verify that IDTSTAC9227X5TAEB4X is sourced from the original manufacturer or authorized distributors?
All IDTSTAC9227X5TAEB4X products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that IDTSTAC9227X5TAEB4X meets industry standards.
7.What is the process for return or replacement of IDTSTAC9227X5TAEB4X?
All IDTSTAC9227X5TAEB4X units undergo pre-shipment inspection (PSI). If there is an issue with IDTSTAC9227X5TAEB4X, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The IDTSTAC9227X5TAEB4X part is unused and in its original packaging.
Return procedure for IDTSTAC9227X5TAEB4X:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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