High-priced Recycling Of Various Amplifier Chips, Including RF, Audio, Power Drive, And More

Mingjiada Electronics, as a professional electronic component recycler, has been purchasing various types of amplifier chips for a long time, covering multiple fields such as radio frequency, audio, and power drive. The following are the main types of amplifiers and brand manufacturers that Mingjiada Electronics focuses on purchasing:

1. Radio Frequency Amplifiers

Manufacturers: TI, Qorvo, Renesas Electronics, Broadcom  

Purchase Types:  

RF Fully Differential Amplifiers (FDA): Such as TI's RF FDA series, which offers low distortion performance and is suitable for driving high-speed ADCs.  

RF Variable Gain Amplifiers (VGA): Such as Renesas' digitally controlled VGA, suitable for signal conditioning and amplitude modulation.

RF Gain Module Amplifiers: e.g., Qorvo's 50Ω matched gain modules, suitable for wireless infrastructure and test and measurement applications.  

RF Front-End Modules (FEM): e.g., Qorvo's Wi-Fi 6 FEM (QPF7250SR, QPF4526SR), integrating PA, LNA, and switches.  

2. Audio Amplifiers

Brand Manufacturers: Infineon, TI, ST

Acquisition Types:

Class D Audio Amplifiers: Such as Infineon's MERUS™ series (MA5332MS, MA2304DNS), supporting heatsink-free design, suitable for high-fidelity audio systems.

Smart Audio Chips: Audio driver ICs for TWS earbuds, headphones, and wireless speakers.

3. Power Drive Amplifiers

Brand Manufacturers: Infineon, TI, ON Semiconductor

Acquisition Type:

MOSFET/HEMT Gate Drivers: Such as Infineon's automotive-grade GaN drivers (TSNP-7 package), suitable for electric drive systems in new energy vehicles.

High-Side/Low-Side Drivers: Such as ON Semiconductor's NCV8460ADR2G, suitable for automotive load control.

4. Optical Isolation Amplifiers

Brand Manufacturers: Broadcom, TI

Acquisition Types:

High-Speed Optocouplers: Such as Broadcom's HCPL-7800 series, suitable for current detection and motor control.

Optical Isolation Amplifiers: Such as the ACPL-C87BT, suitable for high-precision voltage/current detection, compliant with AEC-Q100 automotive standards.

In terms of service processes, Mingjiada offers a four-step rapid monetisation solution:  

1. Submission of inventory list (model/quantity/package/batch)  

2. Online evaluation (quote within 1 hour)  

3. Secure delivery (inspection in Shenzhen or pickup in Hong Kong)  

4. T+1 payment guarantee (multi-currency settlement)  

Mingjiada's amplifier chips are widely used in:

5G communications: RF front-end modules, base station power amplifiers  

Automotive electronics: new energy drive systems, in-vehicle audio, battery management  

Industrial automation: servo drives, PLC control, industrial power supplies  

Consumer electronics: TWS earbuds, smart speakers, wireless charging  

Contact Information  

Shenzhen Headquarters:  

Address: Room 1239-1241, Xinyazhou Guoli Building, Zhenzhong Road, Futian District

Phone: +86 755-83294757 / 13410018555

Email: sales@hkmjd.com

Official Website: www.mjdic.com