Datasheet

TAS5715

www.ti.com

SLOS645 –AUGUST 2010

Table 24. Bank Switching Command (continued)

D7 D6 D5 D4 D3 D2 D1 D0 FUNCTION

0 EQ ON

1 – – – – – – – EQ OFF (bypass BQ 0–7 of channels 1 and 2)

– 0 – – – – – – Reserved

(2)

– – 0 – – – – – Ignore bank-mapping in bits D31–D8.Use default mapping.

(2)

1 Use bank-mapping in bits D31–D8.

– – – 0 – – – – L and R can be written independently.

(2) (3)

L and R are ganged for EQ biquads; a write to the left-channel

– – – 1 – – – – biquad is also written to the right-channel biquad. (0x29–0x2F is

ganged to 0x30–0x36. Also, 0x58–0x5B is ganged to 0x5C–0x5F.

– – – – 0 – – – Enable DRC time constant filter banking

– – – – 1 – – – Disable DRC time constantfilter banking

– – – – – 0 0 0 No bank switching. All updates to DAP

(2)

– – – – – 0 0 1 Configure bank 1 (32 kHz by default)

– – – – – 0 1 0 Configure bank 2 (44.1/48 kHz by default)

– – – – – 0 1 1 Configure bank 3 (other sample rates by default)

– – – – – 1 0 0 Automatic bank selection

– – – – – 1 0 1 Reserved

– – – – – 1 1 X Reserved

(2) Default values are in bold.

(3) Biquad ganging reduces the number of I

C transactions. This is very useful if the left and right PEQ biquads have the same coefficients.

If ganging is ON (D4 = 1), then any write to left biquad is automatically copied to the corresponding right biquad.

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