MB86434 Datasheet, PDF (18/38 Pages) Fujitsu Component Limited. – 5V Single Power Supply Audio Interface Unit (AIU)

MB86434
Parameter
Unity gain frequency
Input conversion noise (BW = 300 - 3400 Hz)
Maximum output level
Minimum load level
Characteristics (typ)
1 MHz
3.1 mV
1.25 - 3.75 VOP
50 kΩ
(2) Analog Switches
The analog switches include on-chip general-purpose switches with 1 kΩ in-resistance. Switches are controlled by
writing to register address 0111 data bit D0, using H-level to make connections.
• Sidetone addition using analog switches
–
+
SGC
SW10
–
+
SGC
–
(inside IC)
+
SGC
BBO
BTPI
BTPO
SWI
SWO
PTBO
IM1
OP1
IM2
OP2
• SW10 = on
Address
A3 A2 A1 A0
011 1
Data bit
D4 D3 D2 D1 D0
———— 1
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