STEVAL-CCA042V1: 20W x 2 @ 8Ω, 5 ~ 18V in, Class D

Summary

The STEVAL-CCA042V1 is a demonstration board designed for the evaluation of the TDA7491HV dual BTL class-D audio amplifier. This application note provides the board specifications and a quick-start list for standalone operation. Also included are the schematic, printed circuit board layout and bill of material.

Due to its high efficiency, the device, assembled in the PSSO36 (slug-down) package, is capable of dissipating heat without a heatsink. Jumpers on the board allow the configuration of the amplifier in order to verify the input signal as single-ended or differential and choose the fixed gain settings. Microswitches are also provided to enable the standby and mute functions.

Specifications

Manufacturer	STMicroelectronics
Category	Audio Amplifiers
Eval Board Part Number	497-13634-ND
Eval Board Supplier	STMicroelectronics
Eval Board	Normally In Stock
Amplifier Type	Class D
Number of Outputs	Stereo
Output Power (RMS) @ Load	20 W x 2 @ 8 Ω
Voltage In	5 ~ 18 V
THD+N (1kHz) @ Conditions	< 0.01% @ 1 W (8 Ω, 18 V)
Features	Differential Inputs Digital Gain Filterless Output Mute Short Circuit Protection Shutdown, Enable, Standby Synchronizable Thermal Protection Turn On/Off Depop
Efficiency @ Conditions	>80%, 4 ~ 20 W @ 8 Ω, 18 V >75%, 3 ~ 20 W @ 4 Ω, 14 V >75%, 2 ~ 20 W @ 6 Ω, 16 V
Standby Current [Typical]	2.5 µA
Quiescent Current [Typical]	26 mA
Component Count + Extras	48 + 10
Application / Target Market	Audio: Hi Fi Audio: Home Theater Systems Audio: Powered Speakers
Design Author	STMicroelectronics
Main I.C. Base Part	TDA7491HV
Quiescent Current [Maximum]	35 mA
Standby Current [Maximum]	5 µA
Date Created By Author	2012-11
Date Added To Library	2013-07