16

DS640PP4

CS44L11

4.5.1

Bass Boost Corner Frequency (BBCF)

Default = 00

00 - 50 Hz

01 - 100 Hz

10 - 200 Hz

11 - Reserved

Function:

The Bass Boost corner frequency is user-selectable. The corner frequency is a function of LRCK (sam-

pling frequency), the DBS bit and the BBCF bits as shown in Table 5 and Table 6.

4.5.2

Treble Boost Corner Frequency (TBCF)

Default = 00

00 - 2 kHz

01 - 4 kHz

10 - 7 kHz

11 - Reserved

Function:

The Treble Boost corner frequency is user selectable. The corner frequency is a function of LRCK (sam-

pling frequency) and the TBCF bits as shown in Table 7.

Note:

Treble Boost is not available in Double-Speed Mode.

BBCF

Fs

LRCK in Single-Speed Mode (DBS=0)

48 kHz

24 kHz

12 kHz

8 kHz

00

50 Hz

25 Hz

12.5 Hz

8.33 Hz

01

100 Hz

50 Hz

25 Hz

16.7 Hz

10

200 Hz

100 Hz

50 Hz

33.3 Hz

11

Reserved

Reserved

Reserved

Reserved

Table 5. Base Boost Corner Frequencies in Single-Speed Mode

BBCF

Fs

LRCK in Double-Speed Mode (DBS=1)

96 kHz

48 kHz

24 kHz

16 kHz

00

50 Hz

25 Hz

12.5 Hz

8.33 Hz

01

100 Hz

50 Hz

25 Hz

16.7 Hz

10

200 Hz

100 Hz

50 Hz

33.3 Hz

11

Reserved

Reserved

Reserved

Reserved

Table 6. Base Boost Corner Frequencies in Double-Speed Mode

TBCF

Fs

LRCK in Single-Speed Mode (DBS=0)

48 kHz

24 kHz

12 kHz

8 kHz

00

2kHz

1kHz

0.5kHz

0.33 kHz

01

4 kHz

2 kHz

1 kHz

0.67 kHz

10

7 kHz

3.5 kHz

1.75 kHz

1.17 kHz

11

Reserved

Reserved

Reserved

Reserved

Table 7. Treble Boost Corner Frequencies in Single-Speed Mode