WM8731SEDS/V Wolfson Microelectronics, WM8731SEDS/V Datasheet - Page 17

• Manufacturer Part Number: WM8731SEDS/V
• Description: Audio CODECs Stereo Codec with H/P
• Manufacturer: Wolfson Microelectronics

Specifications of WM8731SEDS/V

• Interface Type: Serial (2-Wire or 3-Wire), I2S
• Resolution: 24 bit
• Operating Supply Voltage: 2.7 V to 3.6 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: SSOP-28
• Minimum Operating Temperature: - 40 C
• Number Of Channels: 2 ADC / 2 DAC
• Snr: 90 dB
• Thd Plus Noise: - 84 dB
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

WM8731 / WM8731L
DIGITAL AUDIO INTERFACE – SLAVE MODE
Figure 5 Slave Mode Connection
Figure 6 Digital Audio Data Timing – Slave Mode
w
Test Conditions
AVDD, HPVDD, DBVDD = 3.3V, AGND = 0V, DCVDD = 1.5V, DGND = 0V, T
256fs unless otherwise stated.
PARAMETER
Audio Data Input Timing Information
BCLK cycle time
BCLK pulse width high
BCLK pulse width low
DACLRC/ADCLRC set-up
time to BCLK rising edge
DACLRC/ADCLRC hold
time from BCLK rising edge
DACDAT set-up time to
BCLK rising edge
DACDAT hold time from
BCLK rising edge
ADCDAT propagation delay
from BCLK falling edge
Note: The ADC and DAC can run at different rates
DACLRC/
ADCDAT
ADCLRC
DACDAT
WM8731
CODEC
BCLK
ADCLRC
ADCDAT
DACLRC
DACDAT
BCLK
SYMBOL
t
t
t
t
t
LRSU
BCH
t
t
t
BCY
BCL
LRH
t
DS
DH
DD
BCH
t
BCY
t
DD
t
TEST CONDITIONS
t
BCL
DS
t
LRH
ENCODER/
DECODER
t
DH
DSP
A
= +25
t
LRSU
o
MIN
50
20
20
10
10
10
10
C, Slave Mode, fs = 48kHz, XTI/MCLK =
0
TYP
PD, Rev 4.8, April 2009
MAX
35
Production Data
UNIT
ns
ns
ns
ns
ns
ns
ns
ns
17