■ GENERAL DESCRIPTION

The NJM2705 is the surround audio processor for mobile applications.

It regenerates the 3D surround sound with extremely narrow space two speakers (2SP mode), headphone surround with normal headphone (HP mode) and reverberation sound with only one speaker (1SP mode).

It includes mode control switches for surround function and standby function and realizes low consumption power design by standby function.

In addition to SSOP16, an ultra small and thin package FFP16 (Flip-Chip Fine Package) is applied.

It is suitable for cellular phone, PDA and portable game.

■ FEATURES

● Operating Voltage 1.8 to 6V

● Operating Current 0.7mA typ. at Active mode

1µA max. at Standby mode

● Low Output Noise 10µVrms typ

(2SP/HP/1SP mode, VR : max.)

● Variable Surround Effect by external resistor

(Adjustable for speaker and headphone independently.)

● Standby Function

● Internal Mode Control Switch

● Bipolar Technology

● Package Outline FFP16, SSOP16