DatasheetsPDF.com

TFA9812

NXP Semiconductors
Part Number TFA9812
Manufacturer NXP Semiconductors
Description BTL stereo Class-D audio amplifier
Published Jan 30, 2009
Detailed Description www.DataSheet4U.com TFA9812 BTL stereo Class-D audio amplifier with I2S input Rev. 01 — 30 October 2008 Preliminary data...
Datasheet PDF File TFA9812 PDF File

TFA9812
TFA9812

Overview
www.
DataSheet4U.
com TFA9812 BTL stereo Class-D audio amplifier with I2S input Rev.
01 — 30 October 2008 Preliminary data sheet 1.
General description The TFA9812 is a high-efficiency Bridge Tied Load (BTL) stereo Class-D audio amplifier with a digital I2S audio input.
It is available in a HVQFN48 package with exposed die paddle.
The exposed die paddle technology enhances the thermal and electrical performances of the device.
The TFA9812 features digital sound processing and audio power amplification.
It supports I2C control mode and Legacy mode.
In Legacy mode I2C involvement is not needed because the key features are controlled by hardware pin connections.
A continuous time output power of 2 × 12 W (RL = 8 Ω, VDDP = 15 V) is supported without an external heat sink.
Due to the implementation of a programmable thermal foldback even for high supply voltages, higher ambient temperatures, and/or lower load impedances, the device operates without sound interrupting behavior.
TFA9812 is designed in such a way that it starts up easily (no special power-up sequence required).
It features various soft and hard impact protection mechanisms to ensure an application that is both user friendly and robust.
A modulation technique is applied for the TFA9812, which supports common mode choke approach (1 common mode choke only per BTL amplifier stage).
This minimizes the number of external components.
2.
Features 2.
1 General features I I I I I I I I I I I I I I 3.
3 V and 8 V to 20 V external power supply High efficiency and low power dissipation Speaker outputs fully short circuit proof across load, to supply lines and ground Pop noise free at power-up/power-down and sample rate switching Low power sleep mode Overvoltage and undervoltage protection on the 8 V to 20 V power supply Undervoltage protection on the 3.
3 V power supply Overcurrent protection (no audible interruptions) Overdissipation protection Thermally protected and programmable thermal foldback Clock error protection I2C mo...


Similar Datasheet


@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site. (Privacy Policy & Contact)