WM8956 Ver la hoja de datos (PDF) - Wolfson Microelectronics plc

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Fabricante

WM8956

Hi-Fi DAC with 1W Stereo Class D Speaker Drivers and Headphone Drivers

Wolfson Microelectronics plc 

WM8956

Production Data

Test Conditions

DCVDD=1.8V, DBVDD=AVDD=SPKVDD1=SPKVDD2=3.3V, DGND=AGND=SPKGND1=SPKGND2=0V, TA=+25oC, Slave

Mode, fs=48kHz, MCLK=256fs, 24-bit data, unless otherwise stated.

PARAMETER

Audio Data Input Timing Information

DACLRC propagation delay from BCLK falling edge

DACDAT setup time to BCLK rising edge

DACDAT hold time from BCLK rising edge

SYMBOL

tDL

tDST

tDHT

MIN

TYP

MAX

UNIT

10

ns

10

ns

10

ns

AUDIO INTERFACE TIMING – SLAVE MODE

Figure 3 Digital Audio Data Timing – Slave Mode

Test Conditions

DCVDD=1.8V, DBVDD=AVDD=SPKVDD1=SPKVDD2=3.3V, DGND=AGND=SPKGND1=SPKGND2=0V, TA=+25oC, Slave

Mode, fs=48kHz,

MCLK= 256fs, 24-bit data, unless otherwise stated.

PARAMETER

Audio Data Input Timing Information

BCLK cycle time

BCLK pulse width high

BCLK pulse width low

DACLRC set-up time to BCLK rising edge

DACLRC hold time from BCLK rising edge

DACDAT hold time from BCLK rising edge

DACDAT set-up time to BCLK rising edge

Note:

SYMBOL

tBCY

tBCH

tBCL

tLRSU

tLRH

tDH

tDS

BCLK period should always be greater than or equal to MCLK period.

MIN

TYP

MAX

UNIT

50

ns

20

ns

20

ns

10

ns

10

ns

10

ns

10

ns

w

PD, November 2011, Rev 4.1

12

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