TAS5705PAPR datasheet(64/71 Pages) TI

64 / 71 page

LOUDNESS BIQUAD GAIN INVERSE REGISTER (0x26)

LOUDNESS SCALE REGISTER (0x28)

DRC CONTROL (0x46)

TAS5705

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

Table 29. PWM Output Mux Register (0x25) (continued)

FUNCTION

–

Multiplex channel 1 to SUB_PWM–

–

Multiplex channel 2 to SUB_PWM–

–

Multiplex channel 3 to SUB_PWM–

–

Multiplex channel 4 to SUB_PWM–

–

Multiplex channel 5 to SUB_PWM– (3)

–

Multiplex channel 6 to SUB_PWM–

–

Reserved

–

Reserved

–

Multiplex channel 1 to SUB_PWM+

–

Multiplex channel 2 to SUB_PWM+

–

Multiplex channel 3 to SUB_PWM+

–

Multiplex channel 4 to SUB_PWM+

–

Multiplex channel 5 to SUB_PWM+

–

Multiplex channel 6 to SUB_PWM+ (3)

–

Reserved

–

Reserved

(3)

Default values are in bold.

Bit D6 of the volume configuration register (0x0E) enables/disables gain compensation for BQ1. D6 = 0 disables

gain compensation (default); D6 = 1 enables gain compensation. Maximum/minimum biquad gain = ±4.

Table 30. Loudness Biquad Gain Inverse Register (3.23 Format)

CONTENT

DEFINITION

u[31:26], x[25:0]

1/G (1)

(1)

G = gain of the biquad

Table 31. Loudness Scale Register (3.23 Format)

CONTENT

DEFINITION

u[31:26], x[25:0]

Scale = 1/(1 – 1/G) (1)

(1)

G = gain of the biquad

FUNCTION

–

DRC1 independent of channel 4 (1)

–

DRC1 dependent of channel 4

–

DRC1 independent of channel 3 (1)

–

DRC1 dependent of channel 3

–

DRC2 (subchannel ) turned OFF (1)

–

DRC2 (subchannel ) turned ON

–

DRC1 (satellite channels) turned OFF (1)

–

DRC1 (satellite channels) turned ON

(1)

Default values are in bold.

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