MB86434 Overview
The FUJITSU 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.
MB86434 Key Features
- +5 V single power supply
- Low power consumption: muting settings for each operating mode Normal operation : 8.2 mA typ (speaker amp mute) Tone gen
- 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)
- On-chip electronic volume gain adjustments (sending, receiving, tone) On-chip accessory output circuits DTMF generator f
- I A/D A A A A