TAS5705PAPR datasheet(15/71 Pages) TI

15 / 71 page

BACK-END ERROR (BKND_ERR)

BKND_ERR

VALID

w(ER)

p(valid_high)

p(valid_low)

Normal

Operation

Normal

Operation

T0031-04

MUTE TIMING (MUTE)

d(VOL)

VOLUME

MUTE

Normal

Operation

Normal

Operation

d(VOL)

50-50

DutyCycle

T0032-03

TAS5705

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

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

PARAMETER

MIN

TYP

MAX

UNIT

tw(ER)

Minimum pulse duration, BKND_ERR active (active-low)

350

tp(valid_high)

Programmable. Time to stay in the VALID (reset to the power stage) low state. After

tp(valid_high), the TAS5705 attempts to bring the system out of the VALID low state if

300

BKND_ERR is high.

tp(valid_low)

Time TAS5705 takes to bring VALID (reset to the power stage) low after BKND_ERR

400

assertion.

Figure 9. Error Recovery Timing

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

PARAMETER

MIN

TYP

MAX

UNIT

Volume ramp time (= number of steps × step size). Number of steps is defined by volume

td(VOL)

configuration register 0x0E (see Volume Configuration Register). Step size = 4 LRCLKs if

1024

steps

fS ≤ 48 kHz; else 8 LRCLKs if fS ≤ 96 kHz ; else 16 LRCLKs

Figure 10. Mute Timing

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TAS5705PAPR Datasheet(PDF) 15 Page - Texas Instruments

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