WM9712LGEFL/V Wolfson Microelectronics, WM9712LGEFL/V Datasheet - Page 60

• Manufacturer Part Number: WM9712LGEFL/V
• Description: Multimedia Misc Stereo AC'97 CODEC T/P Interface
• Manufacturer: Wolfson Microelectronics
• Type: Audio and Touchpanel Codecr

Specifications of WM9712LGEFL/V

• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 25 C
• Mounting Style: SMD/SMT
• Package / Case: QFN
• Audio Codec Type: Stereo
• No. Of Adcs: 3
• No. Of Dacs: 3
• No. Of Input Channels: 8
• No. Of Output Channels: 4
• Adc / Dac Resolution: 12bit
• Adcs / Dacs Signal To Noise Ratio: 94dB
• Sampling Rate: 48kHz
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

WM9712L
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SIGNAL RISE AND FALL TIMES
Figure 19 Signal Rise and Fall Times (50pF External Load)
AC-LINK POWERDOWN
Figure 20 AC-Link Powerdown Timing
AC-Link powerdown occurs when PR4 (register 26h, bit 12) is set (see “Power Management”
section).
End of Slot 2 to BITCLK and SDATAIN
low
Incoming signals (from the AC’97 controller to the WM9712L)
SDATAOUT rise time
SDATAOUT fall time
SYNC rise time
SYNC fall time
Outgoing signals (from the WM9712L to the AC’97 controller)
BITCLK rise time
BITCLK fall time
SDATAIN rise time
SDATAIN fall time
SDATAOUT
SDATAOUT
SDATAIN
SDATAIN
BITCLK
BITCLK
SYNC
SYNC
PARAMETER
PARAMETER
trise
trise
trise
trise
SLOT 1
TO 0X20
WRITE
DOUT
SYNC
CLK
DIN
t
S2_PDOWN
SLOT 2
DATA PR4
tfall
tfall
tfall
tfall
DON'T
CARE
SYNC
DOUT
CLK
DIN
t
SYMBOL
SYMBOL
trise
trise
S2_PDOWN
tfall
tfall
trise
trise
tfall
tfall
DOUT
SYNC
DOUT
SYNC
CLK
DIN
CLK
DIN
MIN
MIN
2
2
2
2
TYP
TYP
PD Rev 4.5 August 2006
MAX
MAX
Production Data
1.0
6
6
6
6
6
6
6
6
UNIT
UNIT
ns
ns
ns
ns
ns
ns
ns
ns
µs
60