Distributed gain for audio codec

Apparatus to distribute gain both before and after analog-to-digital conversion of a common signal into a plurality of output signals, said apparatus comprising:

• an analog gain module adapted to provide analog gain to said common signal;
• an analog-to-digital converter adapted to convert said analog gained common signal;
• a plurality of digital gain modules adapted to provide individually programmable digital gain to said digitized analog gained common signal in a corresponding plurality of output signals;
• and
• a processor adapted to distribute said programmable value between said analog gain and said digital gain;
• said processor is adapted to set said analog gain at a value equal to a largest one of said respective plurality of programmable values.

Apparatus to distribute gain both before and after analog-to-digital conversion of a common signal into a plurality of output signals, said apparatus comprising:

• an analog gain module adapted to provide analog gain to said common signal;
• an analog-to-digital converter adapted to convert said analog gained common signal;
• a plurality of digital gain modules adapted to provide individually programmable digital gain to said digitized analog gained common signal in a corresponding plurality of output signals;
• and
• a processor adapted to distribute said programmable value between said analog gain and said digital gain;
• said processor is adapted to set said analog gain at a value equal to a largest one of said respective plurality of programmable values;
• said processor is further adapted to set said respective plurality of digital gains to be equal to said respective one of said plurality of programmable values minus said largest one of said respective plurality of programmable values.

The method of distributing gain between gain modules on either side of an analog-to-digital conversion, said method comprising:

• distributing a plurality of desired total gains for each of a plurality of output channels between one analog gain module before an analog-to-digital converter, and a respective Plurality of digital gain modules after said analog-to-digital conversion;
• setting said analog gain module to have an analog gain equal to a largest one of said Plurality of desired total gains;
• and
• setting said respective plurality of digital gains to be equal to said respective one of said plurality of programmable values minus said largest one of said respective plurality of programmable values.

The apparatus for distributing gain between gain modules on either side of an analog-to-digital conversion, comprising:

• means for distributing a plurality of desired total gains for each of a plurality of output channels between one analog gain module before an analog-to-digital converter, and a respective plurality of digital gain modules after said analog-to-digital conversion;
• means for setting said analog gain module to have an analog gain equal to a largest one of said plurality of desired total gains;
• and
• means for setting said respective plurality of digital gains to be equal to said respective one of said plurality of programmable values minus said largest one of said respective plurality of programmable values.

Apparatus to distribute gain both before and after analog-to-digital conversion of a common signal into a plurality of output signals, said apparatus comprising:

• an analog gain module adapted to provide analog gain to said common signal;
• an analog-to-digital converter adapted to convert said analog gained common signal;
• and
• a digital gain module adapted to provide individually programmable digital gain to said digitized analog gained common signal in at least one of a corresponding plurality of output signals.