WM8974GEFL/V Wolfson Microelectronics, WM8974GEFL/V Datasheet - Page 10

• Manufacturer Part Number: WM8974GEFL/V
• Description: Audio CODECs Mono Codec with Spkr
• Manufacturer: Wolfson Microelectronics

Specifications of WM8974GEFL/V

• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: QFN-24
• Minimum Operating Temperature: - 25 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

WM8974
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Note:
BCLK period should always be greater than MCLK period.
AUDIO INTERFACE TIMING – SLAVE MODE
Test Conditions
DCVDD=1.8V, DBVDD=AVDD=SPKVDD=3.3V, DGND=AGND=SPKGND=0V, T
24-bit data, unless otherwise stated.
PARAMETER
Audio Data Input Timing Information
FRAME propagation delay from BCLK falling edge
ADCDAT propagation delay from BCLK falling edge
DACDAT setup time to BCLK rising edge
DACDAT hold time from BCLK rising edge
Test Conditions
DCVDD=1.8V, DBVDD=AVDD=SPKVDD=3.3V, DGND=AGND=SPKGND=0V, T
24-bit data, unless otherwise stated.
PARAMETER
Audio Data Input Timing Information
BCLK cycle time
BCLK pulse width high
BCLK pulse width low
FRAME set-up time to BCLK rising edge
FRAME hold time from BCLK rising edge
DACDAT hold time from BCLK rising edge
DACDAT set-up time to BCLK rising edge
ADCDAT propagation delay from BCLK falling edge
Figure 3 Digital Audio Data Timing – Slave Mode
SYMBOL
t
t
SYMBOL
t
t
LRSU
t
BCH
t
t
t
BCY
BCL
LRH
DH
DS
DD
t
t
t
t
DDA
DST
DHT
DL
A
A
=+25
=+25
160
10
10
64
64
10
10
10
MIN
MIN
o
o
C, Slave Mode, fs=48kHz, MCLK= 256fs,
C, Master Mode, fs=48kHz, MCLK=256fs,
TYP
TYP
PD, Rev 4.5, September 2008
MAX
MAX
10
10
10
20
Production Data
UNIT
UNIT
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
10