Rainbow Electronics MAX5559 User Manual

Page 17

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MAX5556–MAX5559

Low-Cost Stereo Audio DACs

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17

TIME

OUTPUT

VOLTAGE

(OUTR OR OUTL)

V

OUT_

RAMPS UP

TO QUIESCENT

VOLTAGE AT 5V/s (TYP)

V

OUT_

BEGINS TO

FOLLOW THE DATA. THE
AMPLITUDE IS RAMPED

TO FULL SCALE (20ms TYP)

VALID MCLK/LRCLK RATIO

DETECTED

V

OUT_

SETTLES AT

QUIESCENT VOLTAGE (2.4V)

Figure 14. Power-Up Sequence

TIME

OUTPUT

VOLTAGE

(OUTR OR OUTL)

INVALID CLOCK

CONDITION

MUTE: V

OUT_

IMMEDIATELY

FORCED TO DC QUIESCENT

LEVEL (2.4V)

VALID MCLK/LRCLK

RE-ESTABLISHED AND MCLK

EQUAL OR GREATER THAN

MINIMUM OPERATING FREQUENCY

V

OUT_

SOFT START

RAMPING (20ms TYP)

Figure 15. Invalid Clock Output Response

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