TAS5708 datasheet(43/56 Pages) TI

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MASTER FINE VOLUME REGISTER (0x0A)

VOLUME CONFIGURATION REGISTER (0x0E)

TAS5708

www.ti.com ........................................................................................................................................................................................... SLOS570 – DECEMBER 2008

This register can be used to provide precision tuning of master volume.

Table 11. Master Fine Volume Register (0x0A)

FUNCTION

–

0 dB (1)

–

0.125 dB

–

0.25 dB

–

0.375 dB

–

Write enable bit

–

Ignore Write to register 0X0A

(1)

Default values are in bold.

Bits

Volume slew rate (Used to control volume change and MUTE ramp rates). These bits control the

D2–D0:

number of steps in a volume ramp.Volume steps occur at a rate that depends on the sample rate of

the I2S data as follows

Sample Rate (KHz)

Approximate Ramp Rate

8/16/32

125 us/step

11.025/22.05/44.1

90.7 us/step

12/24/48

83.3 us/step

Table 12. Volume Control Register (0x0E)

FUNCTION

–

Reserved (1)

–

Volume slew 512 steps (43 ms volume ramp time at 48kHz)

–

Volume slew 1024 steps (85 ms volume ramp time at 48kHz) (1)

–

Volume slew 2048 steps (171 ms volume ramp time at 48kHz)

–

Volume slew 256 steps (21ms volume ramp time at 48kHz)

–

Reserved

(1)

Default values are in bold.

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