NJU3555

NJU8755

-3 -

Ver.2003-03-12

! FUNCTIONAL DESCRIPTION

(1) Signal Output

be converted to analog signal via external 2nd-order or higher LC filter. A switching regulator with a high

output drivers. To obtain better THD performance, the stabilization of the power is required.

(2) Standby

By setting the STBY pin to “L”, the standby mode is enabled. In the standby mode, the entire functions of the

NJU8755

(3) Mute

(4) Low Voltage Detector

(5) Short Circuit Protection

The short protector, which protects the NJU8755 against high short-circuit current, turns off the output drivers

of L-channel and R-channel independently. After about 5 seconds from the protection, the NJU8755 returns to

normal operation. The short protector functions at following accidents.

Note 1) The detectable current and the period for the protection depend on the power supply voltage and

ambient temperature.

Note 2) The short protector is not effective for a long term short-circuit but for an instantaneous accident.

Continuous high-current may cause permanent damage to NJU8755.