MB86434 Datasheet, PDF (13/38 Pages) Fujitsu Component Limited. – 5V Single Power Supply Audio Interface Unit (AIU)

MB86434
• Tone Output Waveform
The D4 data bit at address 1010, 1100 may be used to select either sine-wave or trapezoidal waveforms for tone
output.
VH
D4=0
Sine wave
output
VL
1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5
VH
D4= 1
Trapezoidal wave
output
VL
• Tone Output Control
Tone output may be controlled by address and through the external tone control input pin TONC. In addition, the
tone control offers a choice of sine or trapezoidal waveforms.
Address 1110
DATA — — — D 1—
(Tone Πcontrol)
Address 1110
DATA — — — — D 0
(Tone  control)
TONC
TONEO
SGC
Single tone
Dual tone
Single tone
: Disable
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