Configuring the demoboard characteristics

AN2406

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Configuring the demoboard characteristics

Differential gain

If necessary, the differential gain can be adapted by modifying the values of resistors R1 and

R2, in accordance with the following relation:

where R1=R2 in k

Ω.

Input configuration

On the demoboard, the Cn2 and Cn3 jumpers allow you to change the input configuration

between capacitor-coupled and common-mode feedback.

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

with R in Ohms, C in Farads and C1=C2.

More information about component calculations is available in the TS4962 datasheet.

Revision history

A

v

300k

Ω

R1

----------------- or

=

A

v

300k

Ω

R2

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

=

2

2

1

1

C

R

2

1

C

R

2

1

×

×

π

=

×

×

π

Date

Revision

Changes

28-Jul-2006

1

Initial release.

12-Apr-2007

2

Updated Table 2: Component list for the mono class D demoboard.