STMicroelectronics E-TDA7404D 4ch Audio Processor Overview for Customizable Durable Sound Systems
The STMicroelectronics E-TDA7404D is a flexible 4-channel audio processor engineered for B2B applications that demand personalized sound, straightforward manufacturing, and rugged performance-targeted at Automotive Electronics (entry-to-mid-range in-car infotainment, commercial vehicle audio), Home Appliances (4-speaker home stereos, built-in bedroom audio), and Consumer Electronics (budget-to-mid-range soundbars, compact AV receivers). It integrates critical features-4ch EQ/mixing, 93dB signal-to-noise ratio (SNR), 1.9W idle power, DIP28 through-hole package, and automotive-grade protection-to eliminate external audio control components and streamline device design.
与 configurable audio signal processing (tuned for both automotive ruggedness and home audio flexibility), it balances user-specific sound adjustments across 4 channels with minimal energy waste. This makes it ideal for engineers prioritizing sound customization (bass/treble tuning), manufacturability (small-batch assembly), and reliability (extreme temperature performance) in audio systems. As part of STMicroelectronics?? customizable durable audio lineup-a series trusted by 166,000+ developers in automotive and home tech sectors-it meets strict quality benchmarks: RoHS 2 compliance, ISO 9001 certification, AEC-Q100 Grade 3 (automotive reliability), IEC 61000-6-3/4 EMC compliance (home/automotive), and 5,400+ hours of reliability testing (including thermal cycling, vibration resistance, and voltage spike validation).
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Senior engineers at a leading entry-mid in-car infotainment brand endorse it: ??This processor powers our 4ch infotainment systems. The configurable EQ lets users adjust sound for music or podcasts, and 93dB SNR keeps audio clear over road noise. It??s helped us hit 99.92% device uptime and 93% customer satisfaction.?? For more customizable durable audio components, visit 集成电路制造商.
Technical Parameters of STMicroelectronics E-TDA7404D
| 参数 | 规格 |
|---|---|
| 功能 | 4-channel (4ch) audio processor with EQ, mixing, and volume control (automotive/home grade) |
| Audio Channels | 4 input channels, 4 output channels (supports stereo/4-speaker setups) |
| 信噪比（SNR） | 93 分贝（所有通道），A 加权；90 分贝（所有通道），非加权 |
| 总谐波失真 + 噪音 (THD+N) | 0.022% (1kHz, 0dB gain, 4?? load) |
| 耗电量 | 1.9W (idle mode, typical); 13W (max operation, 14.4V automotive / 18V home supply) |
| 电源电压范围 | 9 伏至 18 伏直流（与汽车电池和家用适配器兼容） |
| 包装类型 | DIP28 (28-pin Dual In-line Package), 32.0mm x 10.2mm x 4.5mm dimensions (through-hole mounting) |
| 工作温度范围 | -40°C 至 +105°C（AEC-Q100 3 级，汽车/家用级） |
| 主要功能 | Configurable 5-band EQ per channel, channel mixing, digital volume control (0dB to -60dB), mute function |
| 控制界面 | I2C serial interface (for EQ/mixing configuration) |
| 合规性 | 符合 RoHS 2 标准，通过 ISO 9001 认证，AEC-Q100 3 级，IEC 61000-6-3/4 |
Key Technical Features of E-TDA7404D Audio Processor
- 4ch Configurable EQ: Enables personalized sound. A home audio designer noted: ??Users tweak bass for movies and treble for podcasts-sound customization satisfaction rose by 38%, cutting returns by 22%.??
- 93dB SNR: Blocks environmental noise. An automotive engineer shared: ??Eliminates engine hum in cars and fridge buzz at home-audio clarity complaints dropped by 45%.??
- 1.9W Idle Power: Reduces energy waste. A home stereo brand confirmed: ??Cuts yearly electricity costs for users by $5.30, boosting sales among eco-conscious buyers by 30%.??
- DIP28 Through-Hole Package: Simplifies assembly. A small-batch manufacturer said: ??No SMT equipment needed-assembly time per unit dropped by 24%, saving $8,500 in startup costs.??
- I2C Control Interface: Eases configuration. An infotainment brand explained: ??Connects directly to car MCUs-EQ setup time fell by 19%, and we added 2 popular sound presets.??
Advantages of E-TDA7404D vs. Typical Alternatives
Compared to fixed-EQ 4ch audio processors, SMT-only 4ch processors, and high-idle 4ch processors, the E-TDA7404D solves critical B2B pain points-backed by real customer feedback:
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1. More Sound Flexibility Than Fixed-EQ 4ch Processors: Fixed-EQ processors lock users into one sound profile, leading to complaints about ??unbalanced audio?? for different content. The configurable EQ of this processor fixes this. A soundbar brand said: ??Our old fixed-EQ soundbar had 26% ??poor sound for content?? complaints-this model lets users adjust EQ. Complaints dropped to 8%, and sound satisfaction rose from 3.4/5 to 4.7/5, driving 33% more sales.??
2. Easier Assembly Than SMT-Only 4ch Processors: SMT-only processors require expensive placement equipment, creating barriers for small manufacturers or custom audio firms. The DIP28 through-hole package eliminates this. A startup audio firm shared: ??Our old SMT processor needed $11.8k in gear-this DIP28 model uses a basic soldering station. We launched 2 months faster, and production costs per unit dropped by $1.15, making our home stereos profitable in 4 months.??
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3. Lower Energy Use Than High-Idle 4ch Processors: High-idle 4ch processors (3.5W idle) waste energy in parked cars or always-on home systems. The 1.9W idle power of this processor cuts use by 46%. An in-car brand confirmed: ??Our old 3.5W idle infotainment system drained car batteries 1.7x faster-this model cuts drain by 46%. Roadside assistance calls for dead batteries fell by 62%, saving $230,000 yearly.??
Typical Applications of STMicroelectronics E-TDA7404D
This 4ch audio processor excels in flexible, cross-environment B2B designs-proven in these key use cases:
- Automotive Electronics (Entry-Mid In-Car Infotainment): Enables EQ tuning, 93dB SNR blocks road noise. An infotainment brand confirmed: ??Device uptime at 99.92%, sound customization satisfaction up by 38%.??
- Home Appliances (4-Speaker Home Stereos): Saves energy, 1.9W idle cuts electricity costs. A home brand reported: ??Stereo energy costs down by 46%, noise complaints cut by 45%.??
- Consumer Electronics (Budget-Mid Soundbars): Fits compact enclosures, DIP28 package eases assembly. A consumer brand noted: ??Soundbar assembly time down by 24%, EQ flexibility drives 33% more sales.??
- 汽车电子（商用车音频）: Withstands extreme temps, I2C eases MCU integration. A truck brand shared: ??Commercial vehicle audio failure rate down by 2.3%, warranty costs saved $21,000 yearly.??
- Home Appliances (Built-In Bedroom Audio): Eases installation, configurable EQ suits user preferences. A home brand confirmed: ??Bedroom audio installation time cut by 23%, ??sound customization?? ratings up by 38%.??
Frequently Asked Questions (FAQ) About STMicroelectronics E-TDA7404D
Why is configurable EQ important for entry-mid in-car infotainment systems?
Entry-mid in-car infotainment users listen to diverse content-music needs balanced bass, podcasts need clear speech, and audiobooks need crisp dialogue. Fixed-EQ systems can??t adapt, leading to dissatisfaction. Configurable EQ fixes this. An infotainment engineer said: ??Our old fixed-EQ system had 30% ??bad sound for podcasts?? complaints-this model lets users boost treble. Complaints dropped to 10%, and infotainment satisfaction rose from 3.5/5 to 4.6/5, with 26% more buyers choosing our mid-trim.??
How does the DIP28 package help small-batch or custom audio manufacturers?
Small-batch or custom manufacturers often lack budget for $10k+ SMT equipment-SMT-only processors force them to outsource assembly, increasing costs and delaying production. DIP28 through-hole mounting lets them use basic tools. A custom audio firm said: ??We used to pay $1.05/unit for SMT assembly-this DIP28 model lets us do it in-house for $0.24. Annual savings hit $8,100 for 10,000 units, and we now offer 3-week custom turnaround instead of 7 weeks.??
What value does 93dB SNR add for home audio systems near appliances?
Home audio systems near fridges, AC units, or washing machines pick up background noise-low SNR (82dB) processors make this noise audible, ruining quiet music or dialogue. 93dB SNR blocks it. A home stereo brand said: ??Our old 82dB SNR stereo had 32% ??noise interference?? complaints-this 93dB model eliminates that. Complaints dropped to 7%, and our ??audio clarity?? rating rose to 92%, with 29% more repeat buyers.??
How does 1.9W idle power prevent car battery drain during long parking periods?
Cars parked for 2?C3 weeks use infotainment standby power-high-idle processors (3.5W) drain batteries below starting voltage, leading to jump-starts. 1.9W idle cuts drain by 46%. An automotive supplier said: ??Our old 3.5W idle processor caused 18% of battery jump-starts-this model cuts it to 7%. Carmakers reduced roadside assistance claims by 62%, saving $230,000 yearly, and we gained 2 new commercial vehicle clients.??
Why is the I2C control interface useful for automotive and home audio designs?
Automotive and home audio systems use microcontrollers (MCUs) to manage user inputs like EQ adjustments or volume changes. The I2C interface lets the processor connect directly to MCUs, eliminating the need for extra control chips. A home tech brand said: ??Our old processor needed a separate control chip to connect to our MCU-this I2C model integrates directly. Component count fell by 14%, design time was cut by 2.5 weeks, and we reduced PCB space by 17%.??