Datasheet

LM4860
www.ti.com SNAS096C –AUGUST 1994–REVISED MAY 2013
For a system implementation where the headphone amplifier is designed using a split supply, the output coupling
cap, C
C
and resistor R2 of Figure 22, can be eliminated. The functionality described earlier remains the same,
however.
In addition, the HP-SENSE pin, although it may be connected to the SHUTDOWN pin as shown in Figure 21,
may still be used as a control flag. It is capable of driving the input to another logic gate or approximately 2 mA
without serious loading.
Figure 21. HP-SENSE Pin to
SHUTDOWN Pin Connection
Figure 22. Typical Headphone Control Input Circuitry
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