MB86434 Datasheet, PDF (4/38 Pages) Fujitsu Component Limited. – 5V Single Power Supply Audio Interface Unit (AIU)

MB86434
Pin No. Symbol I/O A/D
Description
20 LO0
O D External control latch output pin. Outputs value D0 of address 1000. CMOS
interface.
21 LO1
O D External control latch output pin. Outputs value D1 of address 1000. CMOS
interface.
22 LO2
O D External control latch output pin. Outputs value D2 of address 1000. CMOS
interface.
23 LO3
O D External control latch output pin. Outputs value D3 of address 1000. CMOS
interface.
24 TCLK
I D Tone generator clock input pin. Can be used as a tone CLK signal by using
address 1110 D4D3 to subdivide the internal clock signal by factors of 1/1,
1/2, 1/4. CMOS interface.
25 TONC
I D Tone generator cycle control input pin. CMOS interface. Hlevel signal
outputs tone.
26 LED
O D Ring LED control output pin. CMOS interface.
27 TENV
I A Can be used to generate tone envelope, by placing capacitor between
grounds and turning SW11 on/off.
28 SWO
I/O A Analog switch 10 input/output pin. Controls address 0111 D0.
29 SWI
I/O A Analog switch 10 input/output pin.
30 DSDT
I A Accessory input. Can be connected to RAUD by switching paths.
31 TONEO O A Tone signal output pin.
32 RAUD
O A Output pin for external speaker, or audio test signal. Can be connected to
DSDT by switching paths.
33 VDDSP1 P A Speaker amp power supply pin. To be set within range 4.75 to 5.25 V.
34 JEAR
O A Earphone speaker amp output pin. Capable of 5 mW output at 32 Ω load.
35 XEAR
O A Receiver speaker amp output pin. Internally connected to EAR and BTL.
Maximum output of 10 mW can be obtained at 32 W load by connecting
speaker between EAR and XEAR.
36 EAR
O A Receiver speaker amp output pin. Connected to XEAR and BTL.
37 SPG1
G A Speaker amp ground pin. To be set to 0 V.
38 SPG2
G A Speaker amp ground pin. To be set to 0 V.
39 XTONE O A Speaker amp tone output pin. Internally connected to TONE and BLT.
Maximum output of 10 mW can be obtained at 32 Ω load by connecting
speaker between TONE and XTONE.
40 TONE
O A Speaker amp tone output pin. When speaker amp is not used for tone,
TONE should be shorted to IMTON.
41 IMTON
I A Speaker drive inverted (–) signal input pin. Can be used to adjust gain by
connecting resistance to TONE and IMTON.
42 VDDSP2 P A Speaker amp power supply pin. To be set within range 4.75 to 5.25 V.
(Continued)
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