RESET TIMING (RESET) AND POWER-ON RESET

t

w(RESET)

Earliesttime

thathardmute

couldbeexited

RESET

VALID

t

d(VALID_LOW)

t

d(START)

Startsystem

T0029-05

100

s

m

3.6V

DVDD

3.0V

0V

RESET

POWER-DOWN (PDN) TIMING

PDN

VALID

t

d(STARTUP)

t

d(VALID_LOW)

T0030-04

t

w

TAS5701

Control signal parameters over recommended operating conditions (unless otherwise noted)

PARAMETER

MIN

TYP

MAX

UNIT

Time to assert VALID (reset to power stage) low

100

ns

Pulse duration, RESET active

100

200

ms

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

µs after DVDD reaches 3.0 V.

Figure 5. Power-On Reset Timing

Control signal parameters over recommended operating conditions (unless otherwise noted)

PARAMETER

MIN

TYP

MAX

UNIT

Time to assert VALID (reset to power stage) low

725

µs

Device start-up time

650

µs

Minimum pulse duration required

1

µs

Figure 6. Power-Down Timing

12

Submit Documentation Feedback

Copyright © 2008, Texas Instruments Incorporated

Product Folder Link(s): TAS5701