Datasheet

MICBIAS
MIC3(L/R)
HPLOUT
HPROUT
MICDET
To Detection block
s
s
g m
s
g m s
sgStereo
Cellular
Stereo +
Cellular
m = mic
s = earspeaker
g = ground/midbias
AVDD
ToDetectionblock
HPLOUT
HPCOM
MICDET
Thisswitchcloseswhen
jackisremoved
TLV320AIC3007
www.ti.com ..................................................................................................................................................................................................... SLOS619 – APRIL 2009
Figure 37. Configuration of Device for Jack Detection Using an ac-Coupled Stereo Headphone Output
Connection
An output configuration for the case of the outputs driving fully differential stereo headphones is shown in
Figure 38 . In this mode there is a requirement on the jack side that either HPCOM or HPLOUT get shorted to
ground if the plug is removed, which can be implemented using a spring terminal in a jack. For this mode to
function properly, short-circuit detection should be enabled and configured to power-down the drivers if a
short-circuit is detected. The registers that control this functionality are in Page-0/Reg-38/Bit-D2-D1.
Figure 38. Configuration of Device for Jack Detection Using a Fully Differential Stereo Headphone Output
Connection
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