MB86434 Datasheet, PDF (21/38 Pages) Fujitsu Component Limited. – 5V Single Power Supply Audio Interface Unit (AIU)

MB86434
(2) Accessory Output
The accessory output (RAUD pin) can carry either digital or analog output signals, and is controlled by address
0101 data bit D4 (SW 8), and address 0111 data bit D1 (SW 12).
When both SW 8 and SW 12 are in off position, the accessory outputline is in H-Z (high impedance) state. Caution:
never place both SW 8 and SW 12 in on position at the same time. This may cause the MB86434 to function
improperly.
• SW12 in On Position
DSDT
SW 12
RAUD
(inside IC)
Digital signal input
Digital signal output
(digital signal not buffered)
Address
A4 A3 A2 A1
01 11
Data bit
D4 D3 D2 D1 D0
——— 1 —
• SW8 in On Position
Analog input
BBI
SW 8
RAUD
–
Analog output
+
5 kΩ
(inside IC)
SGC
Can be driven with load resistance
of 5 kΩ or greater
Address
A4 A3 A2 A1
01 00
01 01
Data bit
D4 D3 D2 D1 D0
0 * * *—
0 * — ——
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