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Renesas D2-74083-LR
- Part No.:
- D2-74083-LR
- Manufacturer:
- Renesas
- Category:
- Audio Special Purpose
- Package:
- -
- Datasheet:
-
D2-74083-LR.pdf
- Description:
- IC DGTL AMP INTELLIGENT 128LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,692
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Product details
Overview
D2-74083-LR from Renesas Electronics is a System-on-Chip (SoC) digital audio processor and Class-D amplifier controller featuring 8-channel I2S digital inputs, 2 S/PDIF digital inputs, 8 audio processing channels with PWM outputs, embedded 8-channel sample rate converter, D2 Audio DSP sound enhancement algorithm, 160MHz DSP clock, 40k X/Y memory, and 56k P memory. It targets multi-channel consumer audio systems requiring integrated decoding, real-time amplifier control, and flexible signal routing.
For engineers reviewing the D2-74083-LR datasheet, D2-74083-LR pinout, D2-74083-LR application, or D2-74083-LR equivalent, this device supports Dolby Digital/AC3, AAC LC™, DTS® Digital Surround, and Dolby® Digital Plus decoding (with third-party licenses), operates from –10°C to +85°C in a 128-lead LQFP package, and delivers configurable audio processing for AVRs, soundbars, and amplified speaker systems.
Technical Context
The D2-74083-LR implements a fully configurable 12-channel DSP engine with equalizers, filters, mixers, crossovers, compressors, delay, and loudness contouring - all routable via firmware-defined signal paths. Its embedded 8-channel sample rate converter supports 32–192kHz input/output rates, enabling seamless integration of heterogeneous audio sources.
Real-time amplifier control includes support for bridged, half-bridged, and Bridge-Tied Load (BTL) topologies across 12 dedicated PWM outputs, with full fault protection (overcurrent, overtemperature, undervoltage) and automatic recovery. The device uses a 24.576MHz crystal and internal PLL generating 294.912MHz VCO frequency for precise timing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| DSP Clock Speed | 160MHz (actual 159.744MHz with 24.576MHz crystal) - enables high-throughput audio processing for 9.1-channel systems |
| Memory Capacity | 40k words X/Y RAM + 56k words P memory - supports complex multi-stage algorithms including virtualization and dynamic range compression |
| Audio Inputs | 8-channel I2S + 2× S/PDIF - allows simultaneous connection of multiple digital sources (e.g., HDMI audio extractors, Bluetooth receivers, tuners) |
| Sample Rate Conversion | Embedded 8-channel SRC supporting 32–192kHz - eliminates external SRC ICs and simplifies clock domain isolation |
| Operating Temperature | –10°C to +85°C - validated for consumer-grade audio enclosures without forced cooling |
| Package | 128-lead LQFP (14mm × 14mm, 0.4mm pitch) - compatible with standard surface-mount assembly and thermal management in mid-power amplifiers |
| Supply Voltages | CVDD = 1.8V (core), RVDD/PWMVDD = 3.3V (I/O & PWM drivers), PLLVDD = 1.8V (analog PLL) - enables low-noise analog performance and robust digital interface drive |
Pinout & Package
128-lead LQFP package (RoHS-compliant, Q128.14x14 drawing) with exposed thermal pad; pinout defined per Renesas FN7838 Rev.4.01 Page 10–11.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PWM0–PWM17 | Digital PWM output | 12 dedicated PWM channels (PWM0–PWM11) + 6 auxiliary (PWM12–PWM17); drive discrete or integrated Class-D power stages up to 500W total |
| SC00–SC32, SRD0–SRD3, STD0–STD3, SCK0–SCK3 | Serial audio interface I/O | Four independent SAI ports supporting I2S/TDM; enable concurrent 8-channel input + 8-channel output with flexible slot mapping |
| SPDIFRX0/SPDIFRX1, SPDIFTX | S/PDIF transceiver | Dual S/PDIF inputs + single S/PDIF output - supports passthrough, format conversion, and source selection without external logic |
| MISO/MOSI/SCK/nSS | SPI master/slave interface | Configurable SPI port for firmware updates, configuration loading, and host MCU communication at up to 12.5MHz SCLK |
| SCL0/SDA0, SCL1/SDA1 | I²C interface | Two I²C buses (up to 100kHz) for connecting EEPROMs, temperature sensors, or GPIO expanders with standard address arbitration |
| XTALI/XTALO/OSCOUT | Clock system | 24.576MHz fundamental-mode crystal interface with buffered oscillator output - ensures jitter-free audio clock generation |
Key Features
| Feature | Design Value |
|---|---|
| Pin- and feature-compatible with D2-3 family | Enables drop-in upgrade path for existing designs needing enhanced decoding (Dolby Digital Plus, AAC LC™) without PCB revision |
| 12-channel real-time amplifier control | Supports BTL, half-bridge, and bridged topologies with per-channel fault monitoring and auto-recovery - reduces external protection circuitry |
| D2 Audio DSP sound enhancement | Integrated virtualization, excursion control, and loudness contouring - eliminates need for separate DSP co-processors in cost-sensitive systems |
| Fully configurable audio signal routing | Software-defined paths between any input and output channel - enables custom mixing, channel remapping, and dynamic topology switching |
| Embedded 8-channel sample rate converter | Handles asynchronous 32–192kHz streams simultaneously - removes external SRC ICs and associated clock domain crossing complexity |
Applications
| Audio Video Receiver (AVR) | Multi-channel surround soundbar |
|---|---|
Use Scenario: Integrated 7.1-channel home theater receiver processing HDMI audio, streaming services, and legacy analog sources. IC Role / Device Role / Timing Role: SoC audio processor and Class-D amplifier controller handling decoding, EQ, crossover, and real-time PWM generation. Use Value: Single-chip solution reduces BOM count by eliminating discrete DACs, SRCs, and amplifier controllers while supporting Dolby Digital Plus and DTS Digital Surround. |
Use Scenario: Slim-profile soundbar delivering immersive 5.1.2 audio using upward-firing and side-firing drivers. IC Role / Device Role / Timing Role: Central audio processor managing beamforming-capable I2S inputs, virtualized height channel synthesis, and multi-zone PWM drive. Use Value: On-chip D2 Audio DSP virtualization and 12-channel PWM control enable compact form factor without external DSP or gate drivers. |
| Home Theater in a Box (HTiB) | Bluetooth/WiFi voice-enabled speaker systems |
Use Scenario: All-in-one entertainment system with built-in Blu-ray player, streaming apps, and 5.1 speaker outputs. IC Role / Device Role / Timing Role: Audio SoC performing format decoding, dynamic range compression for late-night listening, and synchronized multi-channel PWM output. Use Value: Integrated Dolby Digital/AC3 and DTS Digital Surround decoders with licensed firmware reduce licensing overhead and time-to-market. |
Use Scenario: Smart speaker with far-field voice pickup, multi-room audio sync, and adaptive bass boost. IC Role / Device Role / Timing Role: Audio processor handling AEC, noise suppression, multi-source mixing, and real-time parametric EQ per playback zone. Use Value: 40k X/Y memory and 160MHz DSP clock support concurrent voice assistant stack and high-fidelity music playback without resource contention. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital audio processor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| D2-74583-LR | Same 160MHz clock, 40k X/Y, 56k P memory, but adds Dolby Digital/AC3 and DTS Digital Surround decoding support | Required where Dolby/DTS license compliance is mandatory for retail certification (e.g., CE, FCC ID) | Select D2-74583-LR if Dolby Digital/AC3 and DTS Digital Surround decoding must be enabled out-of-box with licensed firmware |
| D2-74383-LR | Same 160MHz clock, 40k X/Y, 56k P memory, but replaces Dolby Digital/AC3 with Dolby Digital Plus decoding | Targeted at premium streaming-focused systems requiring E-AC-3 support (e.g., Netflix, Amazon Prime) | Select D2-74383-LR when Dolby Digital Plus (E-AC-3) compatibility is prioritized over legacy AC3/DTS compatibility |
Compared with D2-74083-LR, D2-74583-LR adds licensed Dolby/DTS decoding capability without changing memory, clock, or I/O resources, while D2-74383-LR substitutes Dolby Digital Plus for AC3 - both retain identical pinout, PWM architecture, and signal processing core.
Availability
D2-74083-LR is available at Aetrix Electronics and suitable for Audio Video Receivers, multi-channel soundbars, Home Theater in a Box systems, and voice-enabled speaker platforms requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant manufacturing.
Supply support for D2-74083-LR 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
Renesas Electronics is a global semiconductor leader specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and consumer markets.
The D2-6 family, including D2-74083-LR, was designed to consolidate high-performance audio processing, multi-format decoding, and Class-D amplifier control into a single SoC for cost-sensitive, feature-rich consumer audio products.
FAQ
What audio decoding formats does the D2-74083-LR support natively?
The D2-74083-LR includes native support for Dolby® Digital/AC3, AAC LC™, DTS® Digital Surround, and Dolby® Digital Plus decoding. However, Dolby and DTS decoding require third-party licenses - the D2-74083-LR hardware supports them, but licensed firmware must be loaded separately. D2 Audio DSP sound enhancement algorithms are included without additional royalties. This makes D2-74083-LR a flexible platform where decoding features can be enabled based on licensing agreements and target market requirements.
Does the D2-74083-LR require an external crystal oscillator?
Yes, the D2-74083-LR requires a 24.576MHz fundamental-mode crystal connected to XTALI/XTALO pins. This crystal feeds the internal PLL, which generates the 294.912MHz VCO frequency used for audio clocking and DSP timing. The OSCOUT pin provides a buffered version of the crystal signal for driving external components. No internal RC oscillator is provided - precise jitter performance depends on the external crystal's stability and layout.
How many PWM outputs does the D2-74083-LR provide, and what topologies do they support?
The D2-74083-LR provides 12 dedicated PWM outputs (PWM0–PWM11) plus 6 auxiliary PWM signals (PWM12–PWM17), supporting bridged, half-bridged, and Bridge-Tied Load (BTL) configurations. Each channel includes real-time protection monitoring (overcurrent, overtemperature, undervoltage) and automatic recovery. The device drives discrete MOSFETs or integrated power stages ranging from 10W to over 500W total output, making D2-74083-LR suitable for both compact soundbars and full-size AVRs.
Is the D2-74083-LR pin-compatible with earlier D2-3 family devices?
Yes, the D2-74083-LR is pin-compatible and function/feature compatible with the D2-3 family. This allows direct replacement in existing designs to add enhanced audio decoding (e.g., Dolby Digital Plus, AAC LC™) and increased memory without PCB changes. Firmware and hardware layout remain unchanged - only updated configuration files and licensed decoder modules are needed to unlock new capabilities in D2-74083-LR.
What is the maximum sample rate supported by the embedded sample rate converter in the D2-74083-LR?
The embedded 8-channel sample rate converter in the D2-74083-LR supports input and output sample rates from 32kHz up to 192kHz. This enables seamless integration of diverse audio sources - such as CD-quality (44.1kHz), studio-master (96kHz), and high-resolution streaming (192kHz) - without external SRC ICs. The converter operates asynchronously per channel, allowing mixed-rate operation across all eight channels simultaneously in D2-74083-LR-based systems.
D2-74083-LR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- D2
- Package/Case:
- -
- Packaging:
- Tray
- Product Status:
- Obsolete
- Function:
- -
- Applications:
- -
- Number of Channels:
- -
- Interface:
- -
- Voltage - Supply:
- -
- Operating Temperature:
- -
- Specifications:
- -
- Mounting Type:
- Surface Mount
- Grade:
- -
D2-74083-LR FAQ
1.How can I place an order for D2-74083-LR through Aetrix?
Please submit a Request for Quotation (RFQ) for D2-74083-LR 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 D2-74083-LR reliable?
The price and inventory of D2-74083-LR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for D2-74083-LR is usually 5 days.
3.What payment methods are accepted for D2-74083-LR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for D2-74083-LR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for D2-74083-LR?
D2-74083-LR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your D2-74083-LR 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 D2-74083-LR?
For technical support, including D2-74083-LR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your D2-74083-LR requirements.
6.How does Aetrix verify that D2-74083-LR is sourced from the original manufacturer or authorized distributors?
All D2-74083-LR 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 D2-74083-LR meets industry standards.
7.What is the process for return or replacement of D2-74083-LR?
All D2-74083-LR units undergo pre-shipment inspection (PSI). If there is an issue with D2-74083-LR, 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 D2-74083-LR part is unused and in its original packaging.
Return procedure for D2-74083-LR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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