DIO32276

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DIO32276• Rev. 2.0

Pin Assignment

Pin Descriptions

Pin Name

Description

VCC

Power supply

C_EXT

Slow turn on external capacitor

GND

Ground

LSPKR

Audio LSPKR common I/O port

RSPKR

Audio RSPKR common I/O port

SEL

Select pin

MUTE

Mute enable - Active high

R2

Audio – Right channel source2 I/O port

R1

Audio – Right channel source1 I/O port

L2

Audio – Left channel source2 I/O port

L1

Audio – Left channel source1 I/O port

Truth Table

MUTE

SEL

Function

0

0

L1 = LSPKR; R1 = RSPKR

0

1

L2 = LSPKR; R2 = RSPKR

1

0

L1 ≠ LSPKR; L2 ≠ LSPKR; R1 ≠ RSPKR; R2 ≠ RSPKR (All paths Hi-Z)

1

1

L1 ≠ LSPKR; L2 ≠ LSPKR; R1 ≠ RSPKR; R2 ≠ RSPKR (All paths Hi-Z)