wm9714l Wolfson Microelectronics plc, wm9714l Datasheet - Page 15

• Manufacturer Part Number: wm9714l
• Description: Ac?97 Audio Codec
• Manufacturer: Wolfson Microelectronics plc

Pre-Production
PCM AUDIO INTERFACE TIMING – SLAVE MODE
Note:
1.
w
Test Conditions
DBVDD = 3.3V, DCVDD = 3.3V, DGND1 = DGND2 = 0V, TA = -25°C to +85°C, unless otherwise stated.
PARAMETER
Audio Data Input Timing Information
PCMCLK cycle time
PCMCLK pulse width high
PCMCLK pulse width low
PCMFS set-up time to PCMCLK rising edge
PCMFS hold time from PCMCLK rising edge
PCMDAC set-up time from PCMCLK rising edge
PCMDAC hold time from PCMCLK rising edge
PCMADC propagation delay from PCMCLK falling edge
PCMCLK period should always be greater than or equal to Voice CLK period.
Figure 7 Digital Audio Data Timing – Slave Mode
SYMBOL
t
t
t
t
PCMH
PCMY
PCML
FSSU
t
t
t
t
FSH
DS
DH
DD
MIN
50
20
20
10
10
10
10
TYP
PP, Rev 3.2, October 2008
MAX
10
WM9714L
UNIT
ns
ns
ns
ns
ns
ns
ns
ns
15