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WM8721SEDS/R Datasheet(PDF) 9 Page - Wolfson Microelectronics plc

No. de pieza WM8721SEDS/R
Descripción Electrónicos  Internet Audio DAC with Integrated Headphone Driver
PDF  37 Pages
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Fabricante Electrónico  WOLFSON [Wolfson Microelectronics plc]
Página de inicio  http://www.wolfsonmicro.com
Logo WOLFSON - Wolfson Microelectronics plc

WM8721SEDS/R Datasheet(HTML) 9 Page - Wolfson Microelectronics plc

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Production Data
WM8721 / WM8721L
w
PD Rev 4.0 November 2004
9
DIGITAL AUDIO INTERFACE – SLAVE MODE
BCLK
DACLRC
t
BCH
t
BCL
t
BCY
DACDAT
t
LRSU
t
DS
t
LRH
t
DH
Figure 3 Digital Audio Data Timing – Slave Mode
Test Conditions
AVDD, HPVDD, DVDD = 3.3V, AGND = 0V, DCVDD = 1.5V, DGND = 0V, TA = +25
oC, slave mode, fs = 48kHz, MCLK = 256fs
unless otherwise stated.
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Audio Data Input Timing Information
BCLK cycle time
tBCY
50
ns
BCLK pulse width high
tBCH
20
ns
BCLK pulse width low
tBCL
20
ns
DACLRC set-up time to
BCLK rising edge
tLRSU
10
ns
DACLRC hold time from
BCLK rising edge
tLRH
10
ns
DACDAT set-up time to
BCLK rising edge
tDS
10
ns
DACDAT hold time from
BCLK rising edge
tDH
10
ns
MPU INTERFACE TIMING
CSB
SCLK
SDIN
t
CSL
t
DHO
t
DSU
t
CSH
t
SCY
t
SCH
t
SCL
t
SCS
LSB
t
CSS
Figure 4 Program Register Input Timing - 3-Wire MPU Interface Timing



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