Other Parts Discussed in Thread: NE5534
Tool/software:
TO: Texas Instruments From: AUDIOFEEL Oksang JIN Email: oksang@audiofeel.com
opm320-v1_06-12pcs-2024119-circuit-Each channel.pdfopm320-v1_06-12pcs-2024119-TXN-for Kicad6.zip20250425-TXN001) -update-REV2-19-ENG-rev5-18-SendtoTXN.pdf I would like to inquire about the availability of semiconductor operational amplifiers. hello. Operational amplifiers (hereinafter referred to as “OPAMPs”) are widely used in acoustic products in recent years, and there are other highperformance OPAMPs in addition to the dual-type NE5532 and single-type NE5534. However, people who use audio devices are replacing these chip-type OPAMPs with discrete OPAMPs. We have recognized this reality and applied our patented technology to solder individual components on a small PCB to produce and sell products with OPAMP performance for audio frequency bands. The products are sold to individual customers in Korea and overseas, and customers who have used them have been very satisfied, The OPAMPs produced and sold by our company have a rather high cost, long production time, large volume, and difficulty in mass production, so it is difficult to supply all the customers who need them. Therefore, we believe that if your company can produce them with semiconductors, we will be able to supply the growing demand and expand to new customers. Therefore, we would like to inquire about what we can do to help your company produce them with semiconductors. If we place an order directly, what are the procedures and costs? For your consideration; I am attaching the schematic and related materials of a discrete OPAMP produced using our patented technology. It is my opinion that the attached schematic of the OPAMP can perform the same as the discrete OPAMP if it is integrated with semiconductors. The performance of the attached schematic has been verified by customers who have used it that the sound is delicate, natural, emotional, powerful, clean and clear from bass to treble without distortion, and that each sound is separated without distortion, producing analog sound like the original sound of a vacuum tube. In the future, we believe that demand will increase in the direction of generating analog sound rich in such sensitivity, and there is an urgent need to reproduce the space where many sounds are mixed in a virtual world such as the Metaverse. We believe that our patented technology meets all of these conditions. If the attached discrete op-amp schematic is integrated with semiconductors by your company, the current electronics industry products will be developed into a significantly higher quality product, new demand sources will be expanded, and we believe that it will be a great development as a metaverse solution that will evolve in the future, I would like to request that the attached discrete op amp schematic be integrated into semiconductors and mass produced by your company. I would like to request that your company actively consider how to integrate the discrete op amp schematic into semiconductors. How to integrate discrete op amp schematics into semiconductors at your company; 1 What are the conditions for ordering from us? 2 I would also like to know if there are any other methods other than ordering from us. Our manufactured discrete op amp modules based on our discrete op amp schematic can be sent to you for review (subject to your comments). We attach the following attachments for your review. 1. 20250529-semiconductor-orders-operational-amplifiers-Rev1-9-ENG--v1-4-submit 2.Operational Amplifier OPM320 Schematic (PDF) (pdf) 3.Operational Amplifier OPM320 PCB CAD File (kicad) 4.Technical Cooperation Proposal _AUDIOFEEL (GPTversion 2) -update-REV2-19-ENGrev3-1.pdf Best regards AUDIOFEEL Oksang JIN
