DS04-23004-1E

FUJITSU SEMICONDUCTOR

DATA SHEET

ASSP

CMOS

3 V Single Power Supply Audio

Interface Unit (AIU)

MB86435

s DESCRIPTION

The FUJITSU MB86435 is an AIU (audio interface unit) LSI for +3 V single-power source digital telephone devices,

manufactured using CMOS process technology. The codec transmission filter characteristics meet G.712 standards,

and can handle input and output in A-Law,

µ-Law and linear conversion modes. The MB86435 also contains the

necessary DTMF, microphone and receiver amps for telephone devices.

s FEATURES

• +3 V single power supply

• Low power consumption: muting settings for each operating mode

Tone generation

Standby mode

: 0.5

• On-chip codec filter meets G.712 standards

• Selection of codec conversion methods (A-law,

µ-law, linear)

• On-chip low-noise microphone amp (2-channel) (0 to 35 dB amplification)

• On-chip receiver speaker amps (32

• On-chip tone speaker amp (25

• On-chip earphone speaker amps (32

(Continued)

s PACKAGE

64 pin, Plastic LQFP

(FPT-64P-M03)