Ferroelectric memory GX85RS128 replaces MB85RS128/FM25V01 for power amplifier application
Time:2025-06-30
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A power amplifier is an electronic device used to increase signal power. Its basic working principle is to convert weak input signals into powerful output signals. It is widely used in fields such as audio equipment, wireless communication, medical equipment, and radar systems. Its main features include:
High power output: Power amplifiers are capable of outputting high power levels to meet high-power demand applications.
Low distortion: Electronic components and circuit technology are usually used to ensure high signal quality and low distortion rate of the amplifier output.
High efficiency: capable of converting input signals into output signals with high efficiency.
Easy to control: Negative feedback loop technology is often used to help control the quality and stability of output signals.

A power amplifier needs to store a large number of calibration parameters during operation, such as gain, phase compensation, temperature compensation, etc. These parameters can ensure the output accuracy and stability of the power amplifier. The high-speed read-write characteristics and high durability of ferroelectric memory enable it to store and read these parameters quickly and reliably, ensuring that the power amplifier can maintain good performance under different working conditions.
The ferroelectric memory GX85RS128 can replace Fujitsu MB85RS128/Cypress FM25V01 with PIN TO PIN for power amplifiers. GX85RS128 adopts a standard SPI interface and is fully compatible with MB85RS128/FM25V01. The chip does not require hardware circuit scale modification during the replacement process, which can reduce the development cost of the solution.
GX85RS128 provides a storage capacity of 128Kb, equivalent to MB85RS128/FM25V01, which can meet the parameter storage requirements of power amplifiers. Meanwhile, the storage unit of GX85RS128 can be used for 1e6 read/write operations, with a working frequency of up to 25MHz and support for 40MHz high-speed read commands. These performance indicators such as read/write speed and durability fully meet the working conditions of power amplifiers, making it a very suitable memory solution at present.
Introduction to the main parameters of GX85RS128:
• Capacity: 128Kb
Interface type: SPI interface (Mode 0 and Mode 3)
• Working voltage: 2.7V to 3.6V
• Operating frequency: 25MHz
• Power consumption: 4.2mAh, 9uA (standby)
Data retention: 10 years @ 85 ℃ (200 years @ 25 ℃)
• High speed read feature: Supports 40MHz high-speed read commands
• Working environment temperature range: -40 ℃ to 85 ℃
• Packaging form: 8-pin SOP packaging, compliant with RoHS
Replace Fujitsu MB85RS128 and Cypress FM25V01





