ES9080 datasheet(90/146 Pages) ESS

90 / 146 page

CONFIDENTIAL ADVANCE INFORMATION 0.4.3

ES9080 Product Datasheet

ESS TECHNOLOGY, INC. 109 Bonaventura Drive, San Jose, CA 95134, USA Tel (408) 643-8800 WWW.ESSTECH.COM

Bits

[7:0]

Default

8'd150

Bits

Mnemonic

Description

[7:0]

DAC_VOL_RATE_DOWN

Value by which the old VOLUME value is incremented to

reach the new VOLUME value.

Valid from 8’d1 (slowest) to 8’d255 (fastest), where 8’d0

instantly changes the VOLUME value.

Calculation of time ramp rate (in seconds):

2^14/(DAC_VOL_RATE_UP*FS)

•

8’d0 : Instant change

•

8’d150: Default

•

8’d255: Fastest change

Bits

[7:0]

Default

8'd0

Bits

Mnemonic

Description

[7:0]

DAC_VOL_RATE_FAST

Value by which the old VOLUME value is decremented to

reach the new VOLUME value.

Valid from 8’d1 (slowest) to 8’d255 (fastest), where 8’d0

instantly changes the VOLUME value.

Only used during abnormal mute (PLL unlock or BCK_WS

ratio have failed)

Calculation of time ramp rate (in seconds):

2^14/(DAC_VOL_RATE_UP*FS)

•

8’d0: Instant change (default)

•

8’d255: Fastest change

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