Datasheet

t
w(RESET)
Earliesttime
thathardmute
couldbeexited
RESET
VALID
t
d(VALID_LOW)
t
d(START)
Startsystem
T0029-05
100 sm
3.6V
DVDD
3.0V
0V
RESET
PDN
VALID
t
d(STARTUP)
t
d(VALID_LOW)
T0030-04
t
w
TAS5701
SLOS559A –JUNE 2008–REVISED AUGUST 2010 www.ti.com
RESET TIMING (RESET) AND POWER-ON RESET
Control signal parameters over recommended operating conditions (unless otherwise noted)
PARAMETER MIN TYP MAX UNIT
t
d(VALID_LOW)
Time to assert VALID (reset to power stage) low 100 ns
t
w(RESET)
Pulse duration, RESET active 100 200 ms
t
d(START)
Time to start-up 3.6 ms
Figure 4. Reset Timing
When power is applied to DVDD, RESET must be held low for at least 100 ms after DVDD reaches 3.0 V.
Figure 5. Power-On Reset Timing
POWER-DOWN (PDN) TIMING
Control signal parameters over recommended operating conditions (unless otherwise noted)
PARAMETER MIN TYP MAX UNIT
t
d(VALID_LOW)
Time to assert VALID (reset to power stage) low 725 ms
t
d(STARTUP)
Device start-up time 650 ms
t
w
Minimum pulse duration required 1 ms
Figure 6. Power-Down Timing
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