Fujitsu MB86434
MB86434 is an AIU (audio interface unit) LSI for +5 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 MB86434 also contains the necessary DTMF, microphone and receiver amps for telephone devices.DESCRIPTION
The FUJITSU sFEATURES
● +5 V single power supply● Low power consumption: muting settings for each operating mode Normal operation : 8.2 mA typ (speaker amp mute) Tone generation : 1.8 mA typ (speaker amp mute) Standby mode : 0.5 mA typ
● 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) (unity gain frequency: 1MHz)
● On-chip receiver speaker amps (32 ΩBTL type: 10 mW MIN)
● On-chip tone speaker amp (32 ΩBTL type: 200 mW MIN)
● On-chip earphone speaker amps (32 Ω single type: 5 mW MIN) (Continued) s PACKAGE 64 pin, Plastic QFP (FPT-64P-M07) MB86434 (Continued)
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● On-chip electronic volume gain adjustments (sending, receiving, tone) On-chip accessory output circuits DTMF generator function Service tone generation CMOS compatible input/output s PIN ASSIGNMENT (TOP VIEW) 51 52 33 32 INDEX 64 1 (FPT-64P-M07) 19 20 2 MB86434 s PIN
DESCRIPTION
Pin No. 1 2 3 4 5 6 7 Symbol CAG VRH SGC VDDAC N.C.