From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dirk Behme Subject: Re: Audio Specifications Date: Tue, 20 Nov 2007 18:05:43 +0100 Message-ID: <474313E7.1040808@googlemail.com> References: <867485.80159.qm@web7611.mail.in.yahoo.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <867485.80159.qm@web7611.mail.in.yahoo.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: linux-omap-open-source-bounces+gplao-linux-omap-open-source=gmane.org@linux.omap.com Errors-To: linux-omap-open-source-bounces+gplao-linux-omap-open-source=gmane.org@linux.omap.com To: "Azhar Mr." Cc: linux-omap@vger.kernel.org, linux-omap-open-source@linux.omap.com List-Id: linux-omap@vger.kernel.org Azhar Mr. wrote: > Hi, > > I am trying to play the audio files from OMAP5912 OSK by connecting an amplifier and speakers to the kit at HEADPHONE OUT end. But the output sound is very less whereas I am able to get high sounds when playing from a CD player or tape recorder. > > I think there is an impedance mismatch between OMAP5912 and the amplifier which I am using. Any body Please help me in providing the audio specifications of the processor like output impedance, etc. You should have OSK5912 schematic if you have a board. If not, have a look to section 5.6 (page 48) of http://omap.spectrumdigital.com/osk5912/files/osk5912_hwspec.pdf TLV320AIC23 datasheet you can get at http://www-s.ti.com/sc/ds/tlv320aic23b.pdf Regards Dirk