AUD4990 Datasheet PDF | Analog Express

Analog Express AUD4990

The AUD4990 is an audio power amplifier for mobile phone and other portable electronic device applications. It can deliver 1.3 watts of continuous average power to an 8 ohm BTL (bridge tied load) and 2 watts of continuous average power to a 4 ohm BTL, with less than 1% distortion from a 5V DC power supply. The AUD4990 is specifically designed to provide high output power with a minimal amount of external components.

Part No.	AUD4990
Datasheet	AUD4990 Download
Manufacturer	Analog Express
Description	2W Audio Power Amplifier
Buy	Stock & Price

GENERAL DESCRIPTION

It requires no output coupling capacitors, for instance. Because of its space-saving footprint, it perfectly meets the needs of mobile phones, PDAs, notebook computers and other low-voltage applications that require small power sources in a small package. The AUD4990 can offer a low standby current and a zero shutdown current. Furthermore, the amplifier’s startup time is fast enough to use its shutdown mode as a mute function. The AUD4990 features circuitry that eliminates pop-and-click noise whenever the device is turned on or off. Key Specifications Wide Power Supply Voltage Range Typical THD at 1W, 8Ω High PSRR Low Quiescent Current 2.7V < VDD < 5.5 0.2% (typ) 68 dB (typ) 2.5 mA (typ)

FEATURES

Space Saving Thermal Package Active High or Low Shutdown Mode External Gain Configuration Stable Unity Gain Can Drive CL up to 200pF

APPLICATIONS

Mobile Phones PDAs Notebook Computers Portable Electronic Devices Typical Application 100 VDD RF 20k Ω Audio Input Ci 0.39 µ F R...