CS47L85 datasheet(79/370 Pages) CIRRUS

79 / 370 page

CS47L85

Rev 4.3

EQ1

R3602 (0E10h) to R3620 (0E24h)

EQ2

R3624 (0E28h) to R3642 (0E3Ah)

EQ3

R3646 (0E3Eh) to R3664 (0E53h)

EQ4

R3668 (0E54h) to R3686 (0E66h)

Table 9 EQ Coefficient Registers

ADDRESS

BIT

LABEL

DEFAULT

DESCRIPTION

R3585

(0E01h)

FX_Ctrl2

15:4

FX_STS [11:0]

00h

LHPF, DRC, EQ Enable Status

Indicates the status of each of the

respective signal processing functions.

[11] = EQ4

[10] = EQ3

[9] = EQ2

[8] = EQ1

[7] = DRC2 (Right)

[6] = DRC2 (Left)

[5] = DRC1 (Right)

[4] = DRC1 (Left)

[3] = LHPF4

[2] = LHPF3

[1] = LHPF2

[0] = LHPF1

Each bit is coded as:

0 = Disabled

1 = Enabled

R3600

(0E10h)

EQ1_1

15:11

EQ1_B1_GAIN

[4:0]

01100

EQ1 Band 1 Gain

-12dB to +12dB in 1dB steps

(see Table 11 for gain range)

10:6

EQ1_B2_GAIN

[4:0]

01100

EQ1 Band 2 Gain

-12dB to +12dB in 1dB steps

(see Table 11 for gain range)

5:1

EQ1_B3_GAIN

[4:0]

01100

EQ1 Band 3 Gain

-12dB to +12dB in 1dB steps

(see Table 11 for gain range)

EQ1_ENA

EQ1 Enable

0 = Disabled

1 = Enabled

R3601

(0E11h)

EQ1_2

15:11

EQ1_B4_GAIN

[4:0]

01100

EQ1 Band 4 Gain

-12dB to +12dB in 1dB steps

(see Table 11 for gain range)

10:6

EQ1_B5_GAIN

[4:0]

01100

EQ1 Band 5 Gain

-12dB to +12dB in 1dB steps

(see Table 11 for gain range)

EQ1_B1_MODE

EQ1 Band 1 Mode

0 = Shelving filter

1 = Peak filter

R3602

(0E12h)

R3620

(E24h)

15:0

EQ1_B1_*

EQ1_B2_*

EQ1_B3_*

EQ1_B4_*

EQ1_B5_*

EQ1 Frequency Coefficients

Refer to WISCE evaluation board control

software for the derivation of these field

values.

R3622

(0E26h)

EQ2_1

15:11

EQ2_B1_GAIN

[4:0]

01100

EQ2 Band 1 Gain

-12dB to +12dB in 1dB steps

(see Table 11 for gain range)

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