WM8731SEFL Wolfson Microelectronics, WM8731SEFL Datasheet - Page 16

• Manufacturer Part Number: WM8731SEFL
• Description: Audio CODECs Stereo Codec with H/P
• Manufacturer: Wolfson Microelectronics

Specifications of WM8731SEFL

• Number Of Adc Inputs: 1
• Number Of Dac Outputs: 1
• Conversion Rate: 96 KSPS
• Interface Type: Serial (2-Wire, 3-Wire, I2S)
• Operating Supply Voltage: - 0.3 V to + 3.63 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: QFN EP
• Minimum Operating Temperature: - 40 C
• Number Of Channels: 2 ADC/2 DAC
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

WM8731 / WM8731L
DIGITAL AUDIO INTERFACE – MASTER MODE
Figure 4 Digital Audio Data Timing – Master Mode
w
Test Conditions
AVDD, HPVDD, DBDD = 3.3V, AGND = 0V, DCVDD = 1.5V, DGND = 0V, T
256fs unless otherwise stated.
PARAMETER
Audio Data Input Timing Information
ADCLRC/DACLRC
propagation delay from
BCLK falling edge
ADCDAT propagation delay
from BCLK falling edge
DACDAT setup time to
BCLCK rising edge
DACDAT hold time from
BCLK rising edge
DAC/LRC
(Outputs)
ADCLRC
(Output)
ADCDAT
DACDAT
BCLK
Figure 3 Master Mode Connection
Note: ADC and DAC can run at different rates
SYMBOL
WM8731
CODEC
t
t
t
t
DDA
DST
DHT
DL
ADCLRC
ADCDAT
DACLRC
DACDAT
BCLK
TEST CONDITIONS
t
DST
t
DHT
A
= +25
ENCODER/
DECODER
o
C, Slave Mode, fs = 48kHz, XTI/MCLK =
DSP
MIN
10
10
t
0
0
DL
t
DDA
TYP
PD, Rev 4.8, April 2009
MAX
10
35
Production Data
UNIT
ns
ns
ns
ns
16