AF4996中文资料1.2W CLASS-AB Audio Power Amplifier数据手册AF规格书

描述 Description

The AF4996 is an audio power amplifier primarily designed for demanding applications in mobile phones and other portable communication device applications. It is capable of delivering 1.25W of continuous average power to an 8Ω BTL load with less than 1% distortion (THD+N+N) from a 5VDC power supply. Boomer audio power amplifiers were designed specifically to provide high quality output power with a minimal amount of external components. The AF4996 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. The AF4996 features a low-power consumption shutdown mode. To facilitate this, Shutdown may be enabled by either logic high or low depending on mode selection. Driving the shutdown mode pin either high or low enables the shutdown pin to be driven in a likewise manner to enable shutdown. The AF4996 contains advanced pop & click circuitry which eliminates noise which would otherwise occur during turn-on and turn-off transitions. The AF4996 is unity-gain stable and can be configured by external gain-setting resistors.

特性 Features

• Power Output at 5.0V, 1% THD+N, 8Ω 1.25W (typ)
• Power Output at 3.0V, 1% THD+N, 8Ω 360mW (typ)
• Shutdown Current 0.1μA (typ)

应用 Application

• Mobile Phones
• PDAs
• Portable electronic devices