CS7620 datasheet(53/70 Pages) CIRRUS

53 / 70 page

CS7620

DS301PP2

4.35

Compander - Black Slope, Slopes (MSBs)

Default = 00h; Read/Write (address 2Eh)

4.36

Compander - Slope 1 (LSBs)

Default = A8h; Read/Write (address 2Fh)

Bit Number

765432

Bit Name

Reserved

comp_linear

slope18

slope28

slope38

slope48

Default

---

00000

Bit

Mnemonic

Function

7:5

Reserved

comp_linear

Compander Black Level Slope: 0 - The values of “0” to “64” in a 13 bit rep-

resentation are set to “offset1” in a 10 bit representation. Offset1 can be set

in register 33h.

1 - In this case the black level is mapped linearly from 13 bit values to 10 bit

values. “64” is mapped into “8”. All the other values between “0” and “64” are

divided by 8 in order to get the 10 bit representation. (See Figure 13)

slope18

Compander Slope 1: MSB of slope of first segment of companding curve.

(See Figure 13)

slope28

Compander Slope 2: MSB of slope of second segment of companding curve.

(See Figure 13)

slope38

Compander Slope 3: MSB of slope of third segment of companding curve.

(See Figure 13)

slope48

Compander Slope 4: MSB of slope of fourth segment of companding curve.

(See Figure 13)

Bit Number

765432

Bit Name

slope17

slope16

slope15

slope14

slope13

slope12

slope11

slope10

Default

0101000

Bit

Mnemonic

Function

slope17

Compander Slope1: Slope of first segment (slope1[8:0]) of companding curve.

Max value is 1.996. The LSB step size is 0.0039. (See Figure 13)

slope16

slope15

slope14

slope13

slope12

1slope11

slope10

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