CS4397

DS333F1

17

3.3 MODE SELECT

Mode Control Register (address 01h)

Access:

Default:

00000

Function:

The Mode Select pins determine the operational mode of the device as detailed in Tables 9-14. The op-

tions include:

Selection of the Digital Interface Format which determines the required relationship between the

Left/Right clock, serial clock and serial data as detailed in Figures 29-33

Selection of the standard 15

µs/50 µs digital de-emphasis filter response, Figure 28, which requires re-

configuration of the digital filter to maintain the proper filter response for 32, 44.1 or 48 kHz sample rates.

Selection of the appropriate clocking mode to match the input sample rates.

Access to the Direct Stream Digital Mode

Access to the 8x Interpolation Input Mode

3.4 POWER DOWN

Mode Control Register (address 01h)

Access:

Default:

1 - Powered Down

Function:

The analog and digital sections will be placed into a power-down mode when this function is enabled. This

bit must be cleared to resume normal operation.

76543

210

CAL

MUTE

M4

M3

M2

M1

M0

PDN

76543

210

CAL

MUTE

M4

M3

M2

M1

M0

PDN

PDN

MODE

0

Disabled

1

Enabled

Table 3.