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WM8739LEDS Datasheet(PDF) 8 Page - Wolfson Microelectronics plc

Part # WM8739LEDS
Description  STEREO AUDIO ADC
PDF  35 Pages
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Manufacturer  WOLFSON [Wolfson Microelectronics plc]
Direct Link  http://www.wolfsonmicro.com
Logo WOLFSON - Wolfson Microelectronics plc

WM8739LEDS Datasheet(HTML) 8 Page - Wolfson Microelectronics plc

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WM8739 / WM8739L
Advanced Information
AI Rev 2.2 September 2001
8
Test Conditions
AVDD, DBVDD = 3.3V, AGND = 0V, DCVDD = 3.3V, DGND = 0V, TA = +25
oC, Slave Mode, fs = 48kHz, XTI/MCLK = 256fs
unless otherwise stated.
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Audio Data Input Timing Information
ADCLRC propagation delay
from BCLK falling edge
tDL
010
ns
ADCDAT propagation delay
from BCLK falling edge
tDDA
010
ns
BCLK
ADCDAT
ADCLRC
WM8739
ADC
DSP
ENCODER
Figure 4 Slave Mode Connection
BCLK
ADCLRC
t
BCH
t
BCL
t
BCY
ADCDAT
t
LRSU
t
LRH
t
DD
Figure 5 Digital Audio Data Timing – Slave Mode
Test Conditions
AVDD, DBVDD = 3.3V, AGND = 0V, DCVDD = 3.3V, DGND = 0V, TA = +25
oC, Slave Mode, fs = 48kHz, XTI/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
ADCLRC set-up time to
BCLK rising edge
tLRSU
10
ns
ADCLRC hold time from
BCLK rising edge
tLRH
10
ns
ADCDAT propagation delay
from BCLK falling edge
tDD
010
ns



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