Maxim introduces the MAX9867, a low-power, stereo audio codec that supports digital microphones with programmable digital filters to provide end users with richer sound. The MAX9867 supports high-quality MP3 playback and extends battery life, making it ideal for portable consumer electronics such as cellular phones, portable multimedia players, Bluetooth® stereo headsets, and gaming controllers. This article refers to the address: http:// The MAX9867 provides a complete recording path with stereo differential microphone input and stereo single-ended line input. The device supports traditional analog microphones as well as digital microphones, allowing engineers to implement future-proof designs. To improve audio performance, the device includes a set of programmable digital filters that can be used during recording or playback. This set of filters provides product designers with an easy way to eliminate system noise, such as the GSM packet frequency (217 Hz) on the audio path. The device also allows for custom noise cancellation schemes to improve isolation of noise frequencies. In addition, the headphone amplifier has a complete click/pop suppression circuit that eliminates audible noise during volume changes, power-up or shutdown. This circuit eliminates the expensive bulk capacitors required in previous designs. As a low-power audio codec, the MAX9867 operates from a single 1.8V supply and features a high-efficiency stereo headphone amplifier that consumes only 6.7mW during stereo audio playback. This low-power feature extends battery life in portable devices while maintaining high-quality audio playback. The MAX9867 is available in a space-saving 2.2mm x 2.7mm x 0.4mm, 30-bump WLP and 5mm x 5mm, 32-pin TQFN package. The device operates over the -40°C to +85°C extended temperature range. Semiconductor Fuse and Ferrite
Fuse refers to an electric appliance that, when the current exceeds the specified value, melts the fuse and disconnects the circuit with the heat generated by itself.When the current exceeds the specified value for a period of time, the fuse melts and disconnects the circuit with the heat generated by the fuse itself.A current protector made from this principle.The fuse is widely used in high and low voltage power distribution system and control system as well as power equipment.
Ferrite is a metal oxide with ferrous magnetism.As far as electrical properties are concerned, the resistivity of ferrite is much larger than that of single metal or alloy magnetic materials, and it has higher dielectric properties.Ferrite magnetic energy also shows high permeability at high frequencies.As a result, ferrite has become a non-metallic magnetic material widely used in the field of high frequency and weak current.Due to the low ferrite magnetic energy stored in the unit volume, saturated magnetic induction strength (Bs) and low (usually only pure iron 1/3 ~ 1/5), and thus limits its higher requirements in the low-frequency magnetic energy density in the field of high voltage and high power applications.
Semiconductor Fuse, Fuse Cutout, Protection Fuse, Square Fuse, Fuse Link, Ceramic Fuse, Fuse Box, Fuse Resistors YANGZHOU POSITIONING TECH CO., LTD , https://www.yzpstcc.com