STA369BW - hard clip mode

[christiaan]

Posted on June 23, 2015 at 00:48

Hi,

How can I configure the ST369 in a clipping mode. In the datasheet I found the configuration for: - Anti-clipping mode - Dynamic range compressing mode. Does there exists a configuration to switch-off both modes? Thanks in advance, Christiaan #sta369bw #clipping-mode

[Nickname1623_O]

Posted on June 23, 2015 at 03:54

Hi Chirstiaan ,

if you did not set the DRC/limit setting in register , then the default register value is for hard clipping ( no more dynamic compress or distortion limit) , means that the output clipping level will be relevant with supply voltage . but please  pay attention for load impedance ,due to the output current will be increased with low impedance load ,then over current protection may be actived sometime . thanks YT

[christiaan]

Posted on June 23, 2015 at 07:29

Hi YT,

Thanks for your response. But can you help me to locate the DRC/limit setting register? I've tried a number of registers, but never succeed in switching off the limiter functionality? The limiting function is still active despite following configuration of the amplifier. - Dynamic range compression/anti-clipping bit set to 0: limiters act in anti-clipping mode. - Max Power correction bit set to 0: disables power bridge correction for THD reduction. - AMGC[3:2] DRC/Anti-clipping set to 01 - AMGC[1:0] AC0, stereo anticlipping 0dB limiter set to 00 - C1LS[1:0] set to 0: channel has limiting disabled - C2LS[1:0] set to 0 - C3LS[1:0] set to 0

[Nickname1623_O]

Posted on July 01, 2015 at 03:47

Hi Christiaan,

please set AMGC[1:0] bits to  00, user programmable gain. AMGC[3:2] bits to 00. and all CxLS[1:0] bits  to 00 Thanks , YT