參數資料
型號: WM8718
廠商: Wolfson Microelectronics
英文描述: 24 BIT DIFFERENTIAL STEREO DAC WITH VOLUME CONTROL
中文描述: 24位差分立體聲DAC,具有音量控制
文件頁數: 8/27頁
文件大?。?/td> 284K
代理商: WM8718
WM8718
Production Data
w
PD Rev 4.1 March 2004
8
MASTER CLOCK TIMING
MCLK
t
MCLKL
t
MCLKH
t
MCLKY
Figure 1 Master Clock Timing Requirements
Test Conditions
AVDD = 5V, DVDD = 3.3V, AGND, DGND = 0V, T
A
= +25
o
C, fs = 48kHz, MCLK = 256fs unless otherwise stated.
PARAMETER
Master Clock Timing Information
MCLK Master clock pulse width high
MCLK Master clock pulse width low
MCLK Master clock cycle time
MCLK Duty cycle
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNIT
t
MCLKH
t
MCLKL
t
MCLKY
13
13
26
40:60
ns
ns
ns
60:40
DIGITAL AUDIO INTERFACE TIMINGS
BCKIN
LRCIN
t
BCH
t
BCL
t
BCY
DIN
t
LRSU
t
DS
t
LRH
t
DH
Figure 2 Digital Audio Data Timing
Test Conditions
AVDD = 5V, DVDD = 3.3V, AGND, DGND = 0V, T
A
= +25
o
C, fs = 48kHz, MCLK = 256fs unless otherwise stated.
PARAMETER
Audio Data Input Timing Information
BCKIN cycle time
BCKIN pulse width high
BCKIN pulse width low
LRCIN set-up time to
BCKIN rising edge
LRCIN hold time from
BCKIN rising edge
DIN set-up time to BCKIN
rising edge
DIN hold time from BCKIN
rising edge
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNIT
t
BCY
t
BCH
t
BCL
t
LRSU
40
16
16
8
ns
ns
ns
ns
t
LRH
8
ns
t
DS
8
ns
t
DH
8
ns
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