NJU7087
PRELIMINARY
Sound Enhancement Processor For Telephone
sGENERAL DESCRIPTION The NJU7087 is a Sound Enhancement Processor for telephone, using a low power C-MOS technology.
Sound enhancement and LPF circuit improve quality of conversation without increasing noise.
The NJU7087 is suitable for limited band-width application, such as telephone, and answer phone.
sPACKAGE OUTLINE
sFEATURES qOperating
Voltage qLow Operating Current qLow Output Noise qBypass Gain qAdjustable Boost Level(High) qPackage Outline sPIN CONFIGURATION
NJU7087 (VDD=2.
4 to 5.
5V) (2mA typ.
at VDD=3V) (31.
6µVrms typ.
at BBE ON) (0dB typ.
) (SSOP16)
VDD INPUT (NC) HPF CR1 BPF CR2 LPF
GND VREF BBE OUTPUT CR5 CR4 BBEOU...