Datasheet

MIC3R/LINE2RM
LINE2RP /LINE2LM
LINE2RP
LINE2RM
MIC3L /LINE1RM
LINE1RP
LINE1RP
LINE1RM
MICDET/LINE1LM
LINE1LP
LINE1LP
LINE1LM
LINE2RP /LINE2LM
LINE2LP
LINE2LP
LINE2LM
LINE1LP
LINE2LM
LINE2LP
LINE1LM
SW-L0
SW-L3
SW-L1
SW-L2
SW-L4
SW-L5
LINE1RP
LINE2RP
SW-R0
SW-R1
SW-R2
RIGHT_LOP
LEFT_LOP
ToInternalClass-D
MinusInput
(LEFT_LOM)
ToInternalClass-D
PlusInput
TLV320AIC3107
SLOS545D –NOVEMBER 2008 –REVISED DECEMBER 2014 www.ti.com
Device Functional Modes (continued)
10.4.1.3 Passive Analog Bypass During Powerdown
Programming the TLV320AIC3107 to Passive Analog bypass occurs by configuring the output stage switches for
pass through. This is done by opening switches SW-L0, SW-L3, SW-R0, and closing either SW-L1 or SW-L2 and
SW-R1 or SW-R2. See Figure 32 Passive Analog Bypass Mode Configuration. Programming this mode is done
by writing to Page 0, Register 108.
Connecting LINE1LP input signal to the LEFT_LOP pin is done by closing SW-L1 and opening SW-L0, this
action is done by writing a “1” to Page 0, Register 108, Bit D0. Connecting LINE2LP input signal to the
LEFT_LOP internal signal is done by closing SW-L2 and opening SW-L0, this action is done by writing a “1” to
Page 0, Register 108, Bit D2. Connecting MICDET/LINE1LM input signal to the LEFT_LOM internal signal is
done by closing SW-L4 and opening SW-L3, this action is done by writing a “1” to Page 0, Register 108, Bit D1.
Connecting LINE2RP/LINE2LM input signal to the LEFT_LOM internal signal is done by closing SW-L5 and
opening SW-L3, this action is done by writing a “1” to Page 0, Register 108, Bit D3.
Connecting MIC1RP/LINE1RP input signal to the RIGHT_LOP pin is done by closing SW-R1 and opening SW-
R0, this action is done by writing a “1” to Page 0, Register 108, Bit D4. Connecting LINE2RP/LINE2LM input
signal to the RIGHT_LOP pin is done by closing SW-R2 and opening SW-R0, this action is done by writing a “1”
to Page 0, Register 108, Bit D6. A diagram of the passive analog bypass mode configuration can be seen in
Figure 32.
In general, connecting two switches to the same output pin should be avoided, as this error will short two input
signals together, and can cause distortion of the signal as the two signal are in contention, and poor frequency
response can occur.
Figure 32. Passive Analog Bypass Mode Configuration
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