Rev 1.9.1 Feb.09
Proprietary and Confidential
59
In the event of a discrepancy in values between this guide and the Product Specification Document (PSD), the PSD takes precedence.
•
Audio
path
mixing—required
for
voice
memo
recording
and
playback
via
multiple
audio
paths
•
Transducer
interface—host
provides
acoustic
drivers,
must
occur
outside
of
path
switching
and
mixing
These
functions
can
be
performed
in
either
host
or
module
codec,
depending
on
balance
of
component
selection
and
engineering
resources:
•
Volume
settings—adjustable
gain
settings
based
on
user
interface
selections
•
Sidetone—careful
placement
of
sidetone
gain
control
is
required
to
prevent
the
need
to
adjust
sidetone
gain
with
varying
volume
settings
