WM8990ECS/RV Wolfson Microelectronics, WM8990ECS/RV Datasheet - Page 31

• 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

w
Production Data
AUDIO INTERFACE TIMING – SLAVE MODE
Figure 6 Digital Audio Data Timing – Slave Mode
Note:
BCLK (or BCLK2) period should always be greater than or equal to MCLK period.
Test Conditions
DCVDD=1.8V, DBVDD=AVDD=3.3V, SPKVDD=5V, DGND=AGND=SPKGND=0V, T
MCLK=256fs, 24-bit data, unless otherwise stated.
Audio Data Input Timing Information
BCLK (or BCLK2) cycle time
BCLK (or BCLK2) pulse width high
BCLK (or BCLK2) pulse width low
ADCLRC/ DACLRC (or DACLRC2) set-up time to BCLK
(or BCLK2) rising edge
ADCLRC/ DACLRC (or DACLRC2) hold time from BCLK
(or BCLK2) rising edge
DACDAT (or DACDAT2) hold time from BCLK (or BCLK2)
rising edge
ADCDAT propagation delay from BCLK falling edge
DACDAT (or DACDAT2) set-up time to BCLK (or BCLK2)
rising edge
PARAMETER
SYMBOL
t
t
t
t
LRSU
t
BCH
t
t
t
BCY
BCL
LRH
DH
DD
DS
A
MIN
=+25
50
20
20
20
10
10
20
o
C, Slave Mode, fs=48kHz,
TYP
PD, March 2009, Rev 4.0
MAX
20
WM8990
UNIT
ns
ns
ns
ns
ns
ns
ns
ns
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