參數資料
型號: PCM1807PW
英文描述: Single-Ended, Analog-Input 24-Bit, 96-kHz Stereo A/D Converter
中文描述: 單端模擬輸入24位,96千赫立體聲A / D轉換器
文件頁數: 17/29頁
文件大?。?/td> 426K
代理商: PCM1807PW
www.ti.com
BCK
LRCK
DOUT
t
(BCKH)
t
(BCKL)
t
(CKLR)
t
(LRCP)
t
(BCKP)
t
(CKDO)
t
(LRDO)
0.5 V
DD
0.5 V
DD
0.5 V
DD
T0018-02
BCK
SCKI
t
(SCKBCK)
1.4 V
0.5 V
DD
T0074-01
t
(SCKBCK)
PCM1807
SLES147–SEPTEMBER 2005
SYMBOL
t
(BCKP)
t
(BCKH)
t
(BCKL)
t
(CKLR)
t
(LRCP)
t
(CKDO)
t
(LRDO)
PARAMETER
MIN
150
65
65
–10
10
–10
–10
TYP
1/(64 f
S
)
MAX
1000
600
600
20
65
20
20
UNIT
ns
ns
ns
ns
μ
s
ns
ns
BCK period
BCK pulse duration, HIGH
BCK pulse duration, LOW
Delay time, BCK falling edge to LRCK valid
LRCK period
Delay time, BCK falling edge to DOUT valid
Delay time, LRCK edge to DOUT valid
1/f
S
NOTE: Timing measurement reference level is 0.5 V
DD
. Load capacitance of all signals is 20 pF.
Figure 23. Audio Data Interface Timing (Master Mode: LRCK and BCK Work as Outputs)
SYMBOL
t
(SCKBCK)
PARAMETER
MIN
5
TYP
MAX
30
UNIT
ns
Delay time, SCKI rising edge to BCK edge
NOTE: Timing measurement reference level is 1.4 V for input and 0.5 V
DD
for output. Load capacitance of BCK is 20 pF. This
timing is applied when SCKI frequency is less than 25 MHz.
Figure 24. Audio Clock Interface Timing (Master Mode: BCK Works as Output)
17
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