Part Number |
ETK4992 |
Manufacturers |
Etek Microelectronics |
Logo |
|
Description |
1.25 Watt Fully Differential Audio Power Amplifier |
Datasheet |
ETK4992 Datasheet (PDF) |
Etek Microelectronics
ETK4992
1.25 Watt Fully Differential Audio Power Amplifier
General Description
The ETK4992 is a fully differential audio power amplifier designed for portable communication device applications. It is capable of delivering 1.25 watt of continuous average power to an 8Ω BTL load with less than 1% distortion (THD+N) from a 5V battery voltage. It operates from 2.2 to 5.5V.
Features like 90dB PSRR at 217Hz, improved RF-rectification immunity, the space-saving 8-bump WLCSP package, the advanced pop & click circuitry, a minimal count of external components and low-power shutdown mode make ETK4992 ideal for wireless handsets.
The ETK4992 is unity-gain stable, and the gain can be configured by external resistors.
Features
z Fully differential amplifier
z Improved PSRR at 217Hz (VDD>3.0V)
90dB (typ)
z Power output at 5.0V & 1% THD&8Ω
1.25W (typ)
z Power output at 5.0V & 1% THD&4Ω
2.25W (typ)
z Power output at 4.2V & 1% THD&8Ω
0.92W (typ)
z Power output at 4.2V.