MB86434 Datasheet, PDF (17/38 Pages) Fujitsu Component Limited. – 5V Single Power Supply Audio Interface Unit (AIU)

MB86434
(7) Parallel Output
The LO0 to 3 pins carry latched output for external controls. The data written to address 1000 can be output through
these pins. Output is CMOS output.
Address 1000
D3 D2 D1 D0
LO0
LO1
LO2
LO3
(inside IC)
2. Analog Input
Analog input signals in the MB86434 include the two microphone inputs and the general-purpose analog switch.
(1) Microphone Amps
The microphone amps take the incoming signal from the microphones and amplify it to any desired level of gain.
The microphone lines are low-noise types for use with piezoelectric-ceramic or capacitor microphones, and are
capable of a wide range of amplification. All microphones and amps must be coupled with capacitors to prevent
amplification of offset signals.
Piezoelectric-ceramic type
MICO
MIC
Mic
XMIC
(inside IC)
SGC
AG
Capacitor type
MICO
MIC
XMIC
(inside IC)
V DD
SGC
Mic
AG
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