On-Bright AUOB6211.00 1245, Manual

Page: 1 / 12

2*20W Class-D Audio Amplifier
AUOB6211.00 1245
© On-Bright Electronics
Confidential
OB_DOC_DBM_A_621100
- 1 -
Subject
OB6211 Demo Board Manual
Board Model: AUOB6211.00 1245
Doc. No: OB_DOC_DBM_A_621100
Description:
The OB6211 Demo Board consists of a stereo 20W, class-D, audio power amplifier completed with
a small number of external components mounted on a printed-circuit board. It can be used to
directly drive speakers with an external analog audio source as the input. The audio application of
2 channels single-ended(SE) or 1 channel bridge-tied-load(BTL) is presented. The detailed
features, block diagram, schematics, BOM, PCB layout, application notes and test data are
described.
Key Features:

Stereo 20W SE output into 4  load at 26V

Mono 40W BTL output into 8  load at 26V

Up to 95dB SNR

Soft power on/off and mute/unmute minimize pop noise
Revision History
Revise Date Version Reason/Issue
2012-11-01 00 First Issue