ES9012 datasheet(17/35 Pages) ESS

17 / 35 page

Sabre32 Reference Datasheet

February 11, 2010

CONFIDENTIAL ADVANCE

INFORMATION Rev. 1.2

www.esstech.com

Vista™

High Definition

Vista™

High Definition

1’b1 = Anti-Phase

[0] : POLARITY OF DAC1

1’b0 = In-Phase

1’b1 = Anti-Phase

[7] : SOURCE OF DAC8

1’b0 = DAC8

1’b1 = DAC6

[6] : SOURCE OF DAC7

1’b0 = DAC7

1’b1 = DAC5

[5] : SOURCE OF DAC4

1’b0 = DAC4

1’b1 = DAC2

[4] : SOURCE OF DAC3

1’b0 = DAC3

1’b1 = DAC1

[3] : RESERVED

Must be set to 1’b1 for normal operation.

[2:1] : IIR BANDWIDTH

1’d0 = Normal (for least in-band ripple for PCM data set to Normal)

1’d1 = 50k

1’d2 = 60k

1’d3 = 70k

[0] : FIR ROLLOFF SPEED

1’b0 = Slow Rolloff

1’b1 = Fast Rolloff

(default = 8’b00000000)

[7:0] : RESERVED

Must be set to 8’b00000000 for normal operation.

(default = 8’b00000000)

[7:4]

RESERVED

[3]

automute_loopback

1'b1 => Ramp volume to -infinity upon automute condition.

1'b0 => Do not ramp volume down upon automute condition.

[2:0]

RESERVED

(default = 8’b00011100)

[7]

mono_ch_select

1'b1 => Use the right channel when all_mono mode is enabled.

1'b0 => Use the left channel when all_mono mode is enabled.

[6]

OSF_bypass

1'b1 => Send data directly from the I2S receiver to the IIR filter at 8x. This will cause the

signal to bypass the FIR filters as well as the deemphasis filter, but will still apply

the volume controls.

1'b0 => Use the OSF filter (normal operation).

[5]

dpll_lock_rst_reg

1'b1 => Manually override the dpll_lock.

This will force the Jitter Eliminator to relock to the signal.

1'b0 => Normal operation

[4]

auto_deemph

1'b1 => Deemphasis in SPDIF mode is automatically applied with the correct frequency

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