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WM9703 Datasheet(PDF) 8 Page - Wolfson Microelectronics plc

Part # WM9703
Description  AC97 Revision 2.1 Audio Codec
PDF  30 Pages
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Manufacturer  WOLFSON [Wolfson Microelectronics plc]
Direct Link  http://www.wolfsonmicro.com
Logo WOLFSON - Wolfson Microelectronics plc

WM9703 Datasheet(HTML) 8 Page - Wolfson Microelectronics plc

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WM9703
Production Data
WOLFSON MICROELECTRONICS LTD
PD Rev 3.4 January 2001
8
WARM RESET
SYNC
BIT_CLK
t
SYNC_HIGH
t
SYNC2CLK
Figure 3 Warm Reset Timing
PARAMETER
SYMBOL
MIN
TYP
MAX
UNIT
SYNC active high pulse width
tSYNC_HIGH
1.3
µs
SYNC inactive to BIT_CLK start-
up delay
tSYNC2_CLK
162.4
ns
CLOCK SPECIFICATIONS
BIT_CLK
SYNC
t
CLK_HIGH
t
CLK_LOW
t
CLK_PERIOD
t
SYNC_HIGH
t
SYNC_LOW
t
SYNC_PERIOD
Figure 4 Clock Specifications (50pF External Load)
Note: Worst case duty cycle restricted to 40/60.
PARAMETER
SYMBOL
MIN
TYP
MAX
UNIT
BIT_CLK frequency
12.288
MHz
BIT_CLK period
tCLK_PERIOD
81.4
ns
BIT_CLK output jitter
750
ps
BIT_CLK high pulse width (Note 1)
tCLK_HIGH
32.56
40.7
48.84
ns
BIT_CLK low pulse width (Note 1)
tCLK_LOW
32.56
40.7
48.84
ns
SYNC frequency
48.0
kHz
SYNC period
tSYNC_PERIOD
20.8
µs
SYNC high pulse width
tSYNC_HIGH
1.3
µs
SYNC low pulse width
tSYNC_LOW
19.5
µs



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