MAX5556 Maxim Integrated Products, MAX5556 Datasheet - Page 13

• Manufacturer Part Number: MAX5556
• Description: Low-Cost Stereo Audio DAC
• Manufacturer: Maxim Integrated Products

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The MAX5556 features a pop and click supression rou-
tine to reduce the unwanted audible effects of system
transients. This routine produces glitch-free operation
Figure 10. Internal State Diagram
OUTPUTS IMMEDIATELY
RATIO RE-ESTABLISHED
RATIO RE-ESTABLISHED
AT CURRENT LEVELS
QUIESCENT LEVELS
RETURNED TO DC
OUTPUTS HELD
______________________________________________________________________________________
VALID CLOCK
VALID CLOCK
LofC = LOSS-OF-CLOCK EVENT
Pop and Click Suppression
LofC
LofC
LofC
INVALID RATIO DETECTED
MCLK TIME OUT
SCLK INT/EXT MODE CHANGED
LRCLK LOSS
LofC
Low-Cost Stereo Audio DAC
QUIESCENT LEVELS (< 1 SECOND)
INTERNAL REGISTERS
NORMAL OPERATION
NO POWER APPLIED
OUTPUTS LINEARLY
INITIALIZED (MUTE)
VOLUME RAMPING
(FULL VOLUME)
OUTPUTS HELD
RAMPED TO DC
SOFT-START
AT GROUND
at the outputs during power-on, loss of clock, or invalid
clock conditions. See Figure 10 for a detailed state dia-
gram during transient conditions.
RATIO ESTABLISHED
VALID CLOCK
POWER-UP
OUTPUTS IMMEDIATELY
RETURNED TO GROUND
POWER
LOSS-
EVENT
OF-
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