Renesas 92HD99B2X5NDGIWCX8
- Part No.:
- 92HD99B2X5NDGIWCX8
- Manufacturer:
- Renesas
- Category:
- CODECS
- Package:
- 40-VFQFN Exposed Pad
- Datasheet:
-
92HD99B2X5NDGIWCX8.pdf
- Description:
- IC CODEC 4CH HD CLASS D 48VFQFN
- Quantity:
- Payment:

- Shipping:

Inventory:1,460
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Product details
Overview
The 92HD99B2X5NDGIWCX8 from Integrated Device Technology (IDT) is a single-chip PC audio system integrating a 4-channel HD Audio codec, stereo Class-D speaker amplifier (2W @ 4Ω), capless headphone driver with charge pump/LDO, and internal digital core LDO regulator. It delivers high-fidelity audio for notebook and business desktop PCs with full HDA015-B low-power compliance and combo jack support.
For engineers reviewing the 92HD99B2X5NDGIWCX8 datasheet, 92HD99B2X5NDGIWCX8 pinout, 92HD99B2X5NDGIWCX8 application, or 92HD99B2X5NDGIWCX8 equivalent, key selection criteria include its integrated BTL speaker amp output power, capless HP architecture, 24-bit/192kHz DAC/ADC performance, D3-to-D0 wake latency (<10 ms), and 40-pin QFN RoHS package compatibility with Intel HD Audio platforms.
Technical Context
The 92HD99B2X5NDGIWCX8 implements a complete HD Audio Function Group (AFG) compliant with Intel's AC'97 and HD Audio specifications, supporting simultaneous full-duplex stereo playback and capture plus VoIP streams. Its analog front-end includes five configurable audio ports with presence detection, dual VREF_OUT pins for microphone bias, and hardware-based 10-band parametric equalization.
Power management follows HDA015-B: automatic D0→D3 transition on audio inactivity, <−65dB pop/click suppression during D3→D0 resume, and PC beep wake capability in D3 state. The device integrates a dedicated BTL high-pass filter for speaker protection and supports digital microphone inputs (mono/stereo) with GPIO-configurable mute control on WB+ revisions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Audio Channels | 4-channel (2× stereo DAC + 2× stereo ADC), enabling independent playback and record paths for multi-stream applications. |
| Resolution & Sampling | 24-bit resolution with up to 192 kHz sampling rate, meeting premium desktop/notebook HD Audio fidelity requirements. |
| Speaker Amplifier | 2W Class-D stereo BTL output into 4Ω at 5V supply, eliminating external heat sinks and reducing PCB area. |
| Headphone Driver | Capless architecture with integrated charge pump and LDO, removing bulky DC-blocking capacitors and simplifying layout. |
| Power States | Full HDA015-B support: D0–D3 states with <10 ms D3→D0 resume and −65 dB pop/click suppression for seamless OS sleep/wake. |
| Package | 40-pin QFN (6×6 mm, 0.5 mm pitch), RoHS-compliant, suitable for space-constrained laptop mainboards. |
| Digital Mic Support | Dedicated mono/stereo digital microphone interface with programmable gain and GPIO-mute input (WB revision and beyond). |
Pinout & Package
40-pin QFN package (6 mm × 6 mm, 0.5 mm pitch), exposed thermal pad, RoHS-compliant, rated for commercial (0°C to +70°C) and industrial (−40°C to +85°C) temperature ranges.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDIO | I/O Supply | 3.3V supply for HD Audio interface signaling; supports 1.5V/3.3V HDA bus operation. |
| VDDA | Analog Core Supply | 3.3V analog supply for ADC/DAC and mixer circuits; requires local decoupling. |
| VDDD | Digital Core Supply | 1.8V internal digital core supply generated by on-chip LDO; eliminates external regulator. |
| SPKOUT_L/R | BTL Speaker Outputs | Differential Class-D outputs driving left/right speakers directly; integrated high-pass filter prevents DC offset damage. |
| HPOUT_L/R | Capless Headphone Outputs | Single-ended outputs using internal charge pump to generate ±2.5V rails; no external coupling caps needed. |
| DMIC_CLK/DATA | Digital Mic Interface | Configurable PDM clock/data pair for mono or stereo digital microphones; supports time-division multiplexing. |
| GPIO0–GPIO3 | General-Purpose I/O | Programmable pins for jack detection, mute control, EAPD enable, or vendor-specific functions per AFG configuration. |
| PCBEEP | Analog/Digital Beep Input | Supports both analog PC beep tone injection and digital beep generation via HDA stream. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated BTL Speaker Amp | 2W output into 4Ω enables direct drive of laptop speakers without external amplifiers or heatsinks. |
| Capless Headphone Architecture | Eliminates four 220 µF DC-blocking capacitors per channel, reducing BOM cost and PCB real estate by >15 mm². |
| Hardware Parametric EQ | 10-band fixed-point equalizer runs entirely in hardware, offloading CPU and ensuring consistent acoustic tuning across OS states. |
| Combo Jack Detection | Automatic detection of headphone vs. headset (mic+HP) on shared jacks, enabling OS-level routing without user intervention. |
| Low-Power D3 Wake | Resumes full audio operation from D3 in <10 ms with <−65dB audible artifacts, satisfying Windows logo program responsiveness requirements. |
Applications
| Notebook Audio Subsystem | Business Desktop Audio Platform |
|---|---|
Use Scenario: Integrated audio solution for thin-and-light notebooks requiring minimal component count and ultra-low standby power. IC Role / Device Role / Timing Role: Single-chip HD Audio controller handling codec, speaker amplification, headphone drive, and power regulation. Use Value: Reduces total audio BOM by ≥7 components versus discrete codec + amp + LDO solutions while maintaining Microsoft WLP Premium Logo compliance. | Use Scenario: High-reliability desktop motherboards targeting enterprise deployment with strict acoustic consistency and remote management. IC Role / Device Role / Timing Role: Primary audio hub managing multi-port analog I/O, digital mic inputs, and system beep generation under Windows/Linux drivers. Use Value: Hardware EQ and dynamics processing ensure uniform voice clarity across diverse OEM chassis acoustics without firmware updates. |
| VoIP-Optimized Laptop Design | HD Audio Reference Platform |
Use Scenario: Dual-stream audio systems supporting simultaneous VoIP call and local media playback with echo cancellation. IC Role / Device Role / Timing Role: Full-duplex 4-channel audio processor with dedicated ADC/DAC paths and hardware compressor/limiter. Use Value: Enables higher average volume without speaker resonance or distortion, improving intelligibility in noisy environments. | Use Scenario: IDT reference design for Intel chipset-based motherboards validating HD Audio compliance and low-power behavior. IC Role / Device Role / Timing Role: Compliant AFG node implementing all HDA015-B mandatory features including port presence detect in D3 and PC beep wake. Use Value: Accelerates platform validation by providing pre-verified timing, power state transitions, and jack detection logic. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar HD Audio codec + amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ALC269VC-GR | Larger 48-pin QFP package; lacks integrated Class-D speaker amp; requires external LDO and HP capacitor bank. | Targeted at cost-sensitive mainstream notebooks where speaker amp integration is not required. | Select when board space allows larger footprint and system-level amplification is handled externally. |
| RT5640 | Includes I²S/PCM interface but no native HD Audio link; no HDA015-B D3 wake compliance; lower max sampling (96 kHz). | Suitable for Android tablets and embedded Linux devices using standard I²S rather than Intel HD Audio bus. | Prefer for non-x86 platforms needing flexible digital audio interfaces over strict HDA compliance. |
Compared with ALC269VC-GR and RT5640, the 92HD99B2X5NDGIWCX8 uniquely combines HDA015-B low-power certification, integrated 2W BTL amplifier, and capless headphone drive in a single 40-pin QFN-enabling smaller, cooler, and more power-efficient PC audio designs without compromising Windows compatibility.
Availability
92HD99B2X5NDGIWCX8 is available at Aetrix Electronics and suitable for notebook audio subsystems, business desktop platforms, VoIP-optimized laptops, and HD Audio reference designs requiring stable component supply and long-term lifecycle support.
Supply support for 92HD99B2X5NDGIWCX8 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
Integrated Device Technology (IDT) was a fabless semiconductor company specializing in timing, memory interface, RF, and real-time interconnect solutions before its acquisition by Renesas Electronics in 2019.
The 92HD99 product line was developed specifically for Intel HD Audio-compliant PC platforms, emphasizing integration density, low-power operation, and acoustic performance in space-constrained mobile and desktop form factors.
FAQ
What audio interfaces does the 92HD99B2X5NDGIWCX8 support?
The 92HD99B2X5NDGIWCX8 supports the Intel High Definition Audio (HDA) bus interface with full AC'97 and HDA015-B compliance, including 1.5V and 3.3V signaling modes. It does not support I²S, PCM, or SPI audio interfaces - its digital audio connectivity is exclusively through the HD Audio link to the host controller.
Does the 92HD99B2X5NDGIWCX8 require external DC-blocking capacitors for headphone output?
No, the 92HD99B2X5NDGIWCX8 uses a capless headphone architecture with an integrated charge pump and LDO to generate bipolar output rails. This eliminates the need for external 220 µF electrolytic capacitors typically required in conventional headphone drivers, reducing BOM cost and PCB area.
What is the maximum sampling rate supported by the 92HD99B2X5NDGIWCX8 DAC and ADC?
The 92HD99B2X5NDGIWCX8 supports up to 192 kHz sampling rate for both its stereo DACs and stereo ADCs at 24-bit resolution. This capability meets the highest fidelity requirements for premium notebook and desktop audio applications defined in the Intel HD Audio specification.
How does the 92HD99B2X5NDGIWCX8 handle speaker protection?
The 92HD99B2X5NDGIWCX8 includes a dedicated hardware BTL high-pass filter that blocks DC offset from reaching the speaker terminals. This prevents thermal damage and mechanical stress during power-up, power-down, or fault conditions - a critical feature for integrated speaker amplifiers in portable PCs.
Is the 92HD99B2X5NDGIWCX8 compatible with Windows Hardware Quality Labs (WHQL) certification?
Yes, the 92HD99B2X5NDGIWCX8 is Microsoft WLP Desktop Premium Logo compliant and designed to meet WHQL audio subsystem requirements, including HDA015-B low-power behavior, pop/click suppression, jack detection reliability, and multi-stream audio performance under Windows 7 through Windows 11.
92HD99B2X5NDGIWCX8 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 40-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Audio, HD
- Data Interface:
- -
- Resolution (Bits):
- 24 b
- Number of ADCs / DACs:
- 2 / 2
- Sigma Delta:
- No
- S/N Ratio, ADCs / DACs (db) Typ:
- -
- Dynamic Range, ADCs / DACs (db) Typ:
- 94 / 98
- Voltage - Supply, Analog:
- 4.75V ~ 5.25V
- Voltage - Supply, Digital:
- 3.135V ~ 3.465V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 40-VFQFPN (5x5)
92HD99B2X5NDGIWCX8 FAQ
1.How can I place an order for 92HD99B2X5NDGIWCX8 through Aetrix?
Please submit a Request for Quotation (RFQ) for 92HD99B2X5NDGIWCX8 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 92HD99B2X5NDGIWCX8 reliable?
The price and inventory of 92HD99B2X5NDGIWCX8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 92HD99B2X5NDGIWCX8 is usually 5 days.
3.What payment methods are accepted for 92HD99B2X5NDGIWCX8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 92HD99B2X5NDGIWCX8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 92HD99B2X5NDGIWCX8?
92HD99B2X5NDGIWCX8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 92HD99B2X5NDGIWCX8 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 92HD99B2X5NDGIWCX8?
For technical support, including 92HD99B2X5NDGIWCX8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 92HD99B2X5NDGIWCX8 requirements.
6.How does Aetrix verify that 92HD99B2X5NDGIWCX8 is sourced from the original manufacturer or authorized distributors?
All 92HD99B2X5NDGIWCX8 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 92HD99B2X5NDGIWCX8 meets industry standards.
7.What is the process for return or replacement of 92HD99B2X5NDGIWCX8?
All 92HD99B2X5NDGIWCX8 units undergo pre-shipment inspection (PSI). If there is an issue with 92HD99B2X5NDGIWCX8, 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 92HD99B2X5NDGIWCX8 part is unused and in its original packaging.
Return procedure for 92HD99B2X5NDGIWCX8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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