Data Brief

For further information contact your local STMicroelectronics sales office.

December 2007

Rev 1

1/4

4

STEVAL-CCA002V1

Low voltage differential audio power amplifier

based on the TS4994

Features

amplifier with Programmable standby mode

F=1 kHz, with 8 W load

(10 nA)

(Av=1 V/V)

Description

This evaluation board is designed with the

TS4994 low power differential audio amplifier. The

micro-package DFN10 (dual flat non-leaded 10

pins) allows space saving and good thermal

dissipation. The differential gain is set at 1 V/V

and can be adapted as necessary through a

modification of the R1 to R4 values.

Equation 1

On the board, you can set the Cn3 and Cn4

jumpers can be set to modify the input

configuration from capacitor coupled to common

mode feedback. In capacitor coupled

configuration, the -3dB cut-off frequency in Hz is:

Equation 2

with R in ohms, C in farads and C1=C2. For more

detailed information about component calculation,

refer to the TS4994 datasheet.

Av

R2

R1

--------

R4

R3

--------

=

=

R1

R3

=

R2

R4

=

with

with

1

6.28

R1

C1

⋅⋅

()

-----------------------------------------------

1

6.28

R3

C2

⋅⋅

()

-----------------------------------------------

=

STEVAL-CCA002V1

www.st.com

Obsolete

Product(s)

- Obsolete

Product(s)