WM8599SEFTSLASHV datasheet(25/74 Pages) WOLFSON

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WM8599

PP Rev 1.0 January 2007

1:0

ADC_

FMT[1:0]

ADC Audio Interface Format

00 = Right Justified

01 = Left Justified

10 = I

11 = DSP

3:2

ADC_

WL[1:0]

ADC Audio Interface Word Length

00 = 16-bit

01 = 20-bit

10 = 24-bit

11 = 32-bit (not available in Right Justified

mode)

ADC_BCP

ADC BCLK Polarity

0 = ADCBCLK not inverted - data latched on

rising edge of BCLK

1 = ADCBCLK inverted - data latched on

falling edge of BCLK

R13

ADC_CTRL1

0Dh

ADC_LRP

ADC LRCLK Polarity

0 = ADCLRCLK not inverted

1 = ADCLRCLK inverted

Table 11 Audio Interface Control

DAC FEATURES

The WM8599 includes two 24-bit DACs with shared clocks and independent data inputs. The DACs

include digital volume control with zero cross and soft mute, de-emphasis support, and the capability

to select the output channels to be stereo or a range of mono options. The DAC is enabled by writing

to DAC1_EN and DAC2_EN.

Additionally, the DACs can be controlled independently or together. When controlled independently,

all settings must be written separately to DAC1 and DAC2. When controlled together, all settings

written to DAC1 are automatically written to DAC2.

ADDRESS

BIT

LABEL

DEFAULT

DESCRIPTION

DAC1_CTRL1

02h

DAC1_EN

DAC1 Enable

0 = DAC disabled

1 = DAC enabled

DAC2_CTRL1

07h

DAC2_EN

DAC2 Enable

0 = DAC2 disabled

1 = DAC2 enabled

Table 12 DAC Enable Control

DIGITAL VOLUME CONTROL

The WM8599 DACs include independent digital volume control, allowing the digital gain to be

adjusted between -100dB and +12dB in 0.5dB steps. All four DAC channels can be controlled

independently. Alternatively, global update bits allow the user to write all volume changes before the

volume is updated.

Volume control includes optional zero cross functionality. When zero cross is enabled, volume

changes are not applied until the output level crosses VMID, the DC output level of the WM8599.

Zero cross helps to prevent pop and click noise when changing volume settings.

WM8599SEFT/V Datasheet(PDF) 25 Page - Wolfson Microelectronics plc

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