®

17

PCM1737

Register 18 (cont.)

INZD

Infinite Zero Detect Mute Control

This bit is Read/Write.

Default Value: 0

INZD = 0

Infinite Zero Detect Mute Disabled (default)

INZD = 1

Infinite Zero Detect Mute Enabled

The INZD bit is used to enable or disable the Zero Detect Mute function described in the Zero Flag and Infinite

Zero Detect Mute section in this data sheet. The Zero Detect Mute function is independent of the Zero Flag

output operation, so enabling or disabling the INZD bit has no effect on the Zero Flag outputs (ZEROL and

ZEROR).

OVER

Oversampling Rate Control

This bit is Read/Write.

Default Value: 0

OVER = 0

64x Oversampling (default)

OVER = 1

128x Oversampling

Sets the oversampling rate of the delta-sigma D/A converters. The 128x setting can only be used for sampling

frequencies up to 96kHz. The 64x setting must be used for sampling frequencies greater than 96kHz.