Manual

MAX5556–MAX5559

Low-Cost Stereo Audio DACs

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NO POWER APPLIED

OUTPUTS HELD

AT GROUND

OUTPUTS LINEARLY

RAMPED TO DC

QUIESCENT LEVELS (< 1 SECOND)

INTERNAL REGISTERS

INITIALIZED (MUTE)

SOFT-START

VOLUME RAMPING

OUTPUTS IMMEDIATELY

RETURNED TO DC

QUIESCENT LEVELS

INVALID RATIO DETECTED

MCLK TIME OUT

SCLK INT/EXT MODE CHANGED

LRCLK LOSS

OUTPUTS HELD

AT CURRENT LEVELS

VALID CLOCK

RATIO RE-ESTABLISHED

VALID CLOCK

RATIO RE-ESTABLISHED

VALID CLOCK

RATIO ESTABLISHED

POWER-UP

LOSS-

OF-

POWER

EVENT

NORMAL OPERATION

(FULL VOLUME)

LofC

LofC = LOSS OF CLOCK EVENT

LofC

OUTPUTS IMMEDIATELY

RETURNED TO GROUND

Figure 13. Internal State Diagram