WM8990ECS/RV Wolfson Microelectronics, WM8990ECS/RV Datasheet - Page 32

• Manufacturer Part Number: WM8990ECS/RV
• Description: Audio CODECs Stereo CODEC w.Class AB/D speaker driver
• Manufacturer: Wolfson Microelectronics

Specifications of WM8990ECS/RV

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

WM8990
w
AUDIO INTERFACE TIMING – TDM MODE
In TDM mode, it is important that two ADC devices to not attempt to drive the ADCDAT pin simultaneously. The timing of the
WM8990 ADCDAT tri-stating at the start and end of the data transmission is described in Figure 7 and the table below.
Figure 7 Digital Audio Data Timing - TDM Mode
Test Conditions
AVDD=3.3V, SPKVDD=5V, DGND=AGND=SPKGND=0V, T
MCLK=256fs, 24-bit data, unless otherwise stated.
Audio Data Timing Information
ADCDAT setup time from BCLK falling edge
ADCDAT release time from BCLK falling edge
PARAMETER
A
=+25
DBVDD = 1.71V
DBVDD = 1.71V
CONDITIONS
DBVDD = 3.6V
DBVDD = 3.6V
o
C, Master Mode, fs=48kHz,
DCVDD =
DCVDD =
DCVDD =
DCVDD =
MIN
TYP
15
15
5
5
PD, March 2009, Rev 4.0
MAX
Production Data
UNIT
ns
ns
ns
ns
32