Shenzhen Mingjiada Electronics Co., Ltd. a globally renowned distributor of electronic components and inventory management specialist, officially announces its long-term high-value acquisition of Infineon's full range of audio amplifier evaluation boards.
Mingjiada Electronics serves not only as a distributor for Infineon components but also as a specialized recycler for its entire portfolio of evaluation boards. We are committed to building a dual-business ecosystem of “distribution + recycling” to optimize resource allocation across the industrial chain.
Core Acquisition Scope
Mingjiada Electronics prioritizes the acquisition of Infineon audio amplifier evaluation boards based on MERUS™ multilevel technology and CoolGaN™ gallium nitride technology, specifically including the following series:
1. MERUS™ Multilevel Class D Amplifier Evaluation Boards
EVAL_AUDIO_MA2304DNS_B / EVAL_AUDIO_MA2304PNS_B
Features MA2304DNS/MA2304PNS multilevel Class D amplifier ICs with integrated PSoC™ controller
Ultra-low idle power: Only 52mW, significantly extending battery life for battery-powered devices
Market-leading efficiency: Up to 79% efficiency at 1W/8Ω load, delivering optimal efficiency at typical listening levels
Low EMI design: Configurable switch edge steepness and PWM synchronization reduce electromagnetic interference in multi-channel systems
Integrated DSP: Built-in audio system tuning DSP accelerates product development cycles
Output power: 2×37W, supports digital I2S/TDM inputs, output noise only 52μVrms (A-weighted)
Applications: Portable Bluetooth speakers, conference systems, battery-powered audio devices
2. High-Power Hi-Fi Audio Evaluation Board
EVAL_MA5302MS_200Wx2
2-channel 200W/channel (±28.5V supply, 2Ω load) half-bridge Class D power amplifier
Suitable for high-fidelity audio systems, demonstrating optimal PCB layout and protection circuit design for the MA5302MS IC
EVAL_MA5342MS_200Wx2
2-channel 200W/channel (±52.5V supply, 8Ω load) half-bridge Class D power amplifier
Demonstrates stable operation of the MA5342MS IC in high-voltage environments
3. CoolGaN™ Gallium Nitride Audio Evaluation Board
EVAL_AUDAMP24
2-channel 225W/ch or 250W/ch half-bridge Class D audio power amplifier
Revolutionary technology: Demonstrates co-design of CoolGaN™ transistors with MERUS™ controller IC
Scalable architecture: Supports flexible expansion of power and channel count for consumer to professional audio applications
Optimized PCB layout: Provides complete protection circuit design and GaN device driver solutions
4. Classic Class D Amplifier Evaluation Board
IRAUDAMP12
2-channel 160W/ch (4Ω load, ±34V supply) Class D audio power amplifier
Based on IR4301M integrated Class D audio amplifier IC with built-in complete auxiliary power supply
Dual-channel design is scalable to meet varying power and channel requirements
IRAUDAMP19
2-channel 100W/ch (4Ω load, +52V single supply) Class D audio power amplifier
Demonstrates single-supply power solution to simplify power design complexity
Acquisition Service Advantages
Three Core Competencies
Expert Evaluation, Leading Pricing: Mingjiada's seasoned audio technology experts deeply understand the unique value of Infineon's MERUS™ multilevel technology and CoolGaN™ gallium nitride technology. We provide cash offers 15-20% above market averages based on evaluation board model, functional integrity, accessory completeness, and market scarcity.
Strong Capital, Swift Settlement: With ample cash flow, we support multiple payment methods—cash, wire transfer, or promissory notes—upon quote confirmation and agreement signing. Payment is completed within 24 hours after successful inspection, significantly shortening customer cash flow cycles.
Global Network, Efficient Processing:
With branches and bonded warehouses in Hong Kong, Shenzhen, Japan, the U.S., and Germany, we offer worldwide on-site inspections and local delivery. This enables rapid inventory turnover and reduces customer logistics costs.
Standardized Acquisition Process
To ensure transparent and efficient transactions, Mingjiada Electronics has established a five-step standardized acquisition process:
Step 1: Submit Inventory List
Customers categorize surplus Infineon audio evaluation boards, identifying model numbers, brand, production dates, quantities, and accessory completeness. Send this information via email or fax to Mingjiada's evaluation team. Physical photos and functional test reports (if available) are recommended.
Step 2: Preliminary Quote
Mingjiada's professional evaluation team completes model identification and market analysis within 1-4 hours, providing a competitive preliminary cash quote. For bulk quantities or scarce models, on-site evaluation services can be scheduled.
Step 3: Sample Verification
Customers mail 1-2 representative samples or arrange for Mingjiada technicians to conduct on-site inspection. The laboratory performs functional testing, visual inspection, and accessory inventory to confirm actual condition matches the list.
Step 4: Agreement Signing
Both parties confirm the final purchase price and sign the formal Evaluation Board Recycling Agreement. This document specifies product specifications, quantity, price, payment method, and delivery terms to safeguard mutual legal rights and interests.
Step 5: Bulk Delivery & Payment
Customers ship goods per agreement (via courier, freight, or delivery to Mingjiada's Shenzhen/Hong Kong warehouses). Mingjiada completes final inventory and functional sampling within 24 hours of receipt, paying the full amount immediately upon confirmation.
Special Note: Mingjiada Electronics concurrently supplies brand-new Infineon audio amplifier evaluation boards, enabling a circular economy model of “recycling-resale” and offering customers more flexible inventory management options.
Regardless of the specific Infineon audio amplifier evaluation board model you possess, feel free to contact us anytime for a customized evaluation quote.
Contact Information:
Contact Person: Mr. Chen / Professional Evaluation Team
Phone/WeChat: +86 13410018555
Email: chen13410018555@163.com / sales@hkmjd.com
Company Address: Room 1239-1241, Xin Asia Guoli Building, Zhenzhong Road, Futian District, Shenzhen, Guangdong Province
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