COSINE COS4890SR

A high quality audio power amplifier for portable electronic devices. It is capable of delivering 1.2 watt of continuous average power to an 8Ω BTL load with less than 1% distortion (THD+N) from a 5.2V power supply. It does not require output coupling capacitors or bootstrap capacitors, and therefore is ideally suited for mobile phone and other low voltage applications where minimal power consumption is a primary requirement. It is unity-gain stable and can be configured by external gain-setting resistors. It features a low-power consumption shutdown mode, which is achieved by driving the shutdown pin with logic low. Additionally, it features an internal thermal shutdown protection mechanism. It contains advanced pop & click circuitry which eliminates noises that occurs during turn-on and turn-off transitions.

• 2.5V to 5.5V Operation
• 1.2W into 8Ω BTL load from 5.2V Power Supply THD+N = 1% (typ.)
• Shutdown Current: 0.01μA (typ.)
• High PSRR
• Unity-Gain Stable
• Fast Turn-On Time
• Unity Gain Stable Thermal Shutdown Protection
• Operating Temperature Ranges From -40°C to +85°C
• Available Package: SOP-8/MSOP-8/TDFN-8

• Mobile Phones
• PDAs
• GPS Portable Electronic Devices