TAS5705PAPR datasheet(13/71 Pages) TI

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RESET TIMING (RESET)

w(RESET)

Earliesttime

thathardmute

couldbeexited

RESET

VALID

d(VALID_LOW)

d(I2C_ready)

Startsystem

d(run)

Systeminitialization.

EnableviaI C.

T0029-05

POWER-DOWN (PDN) TIMING

PDN

VALID

d(STARTUP)

d(VALID_LOW)

T0030-04

TAS5705

www.ti.com ...................................................................................................................................................................................................... SLOS549 – JUNE 2008

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

PARAMETER

MIN

TYP

MAX

UNIT

td(VALID_LOW)

Time to assert VALID (reset to power stage) low

100

tw(RESET)

Pulse duration, RESET active

100

200

td(I2C_ready)

Time to enable I2C

3.5

td(run)

Device start-up time (after start-up command via I2C)

NOTE: RESET must be asserted low at least 100

µs after DVDD reaches 3.0 V.

Figure 5. Reset Timing

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

PARAMETER

MIN

TYP

MAX

UNIT

td(VALID_LOW)

Time to assert VALID (reset to power stage) low

725

µs

td(STARTUP)

Device startup time

650

µs

Minimum pulse duration required

µs

Figure 6. Power-Down Timing

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TAS5705PAPR 数据表(PDF) 13 Page - Texas Instruments

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