WM9711LGEFL/V Wolfson Microelectronics, WM9711LGEFL/V Datasheet - Page 47

• Manufacturer Part Number: WM9711LGEFL/V
• Description: Audio CODECs Stereo AC'97 CODEC with H/P
• Manufacturer: Wolfson Microelectronics

Specifications of WM9711LGEFL/V

• Number Of Adc Inputs: 1
• Number Of Dac Outputs: 1
• Interface Type: AC97
• Resolution: 12 bit
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: QFN EP
• Minimum Operating Temperature: - 25 C
• Number Of Channels: 2 ADC/2 DAC
• Audio Codec Type: Stereo
• No. Of Adcs: 2
• No. Of Dacs: 3
• No. Of Input Channels: 9
• 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

Production Data
w
INTERFACE TIMING
Test Characteristics:
DBVDD = 3.3V, DCVDD = 3.3V, DGND1 = DGND2 = 0V, T
CLOCK SPECIFICATIONS
Figure 9 Clock Specifications (50pF External Load)
DATA SETUP AND HOLD
Figure 10 Data Setup and Hold (50pF External Load)
Note:
1.
Note:
1. Worst case duty cycle restricted to 45/55
BITCLK frequency
BITCLK period
BITCLK output jitter
BITCLK high pulse width (Note 1)
BITCLK low pulse width (Note 1)
SYNC frequency
SYNC period
SYNC high pulse width
SYNC low pulse width
Setup and hold times for SDATAIN are with respect to the AC’97 controller, not the
WM9711L.
BITCLK
SYNC
PARAMETER
t
SYNC_HIGH
A
t
CLK_PERIOD
t
= -25°C to +85°C, unless otherwise stated.
CLK_HIGH
t
t
SYNC_PERIOD
t
t
SYMBOL
CLK_PERIOD
t
SYNC_HIGH
t
SYNC_LOW
CLK_HIGH
CLK_LOW
t
SYNC_PERIOD
t
CLK_LOW
t
SYNC_LOW
MIN
36
36
12.288
81.4
40.7
40.7
20.8
19.5
TYP
1.3
48
PD Rev 4.3 August 2006
MAX
750
WM9711L
45
45
UNIT
MHz
kHz
ns
ps
ns
ns
µs
µs
µs
47