參數(shù)資料
型號: PCM1851APJT
英文描述: 24-BIT, 96-kHz STEREO A/D CONVERTER WITH 6 ⅴ 2-CHANNEL MUX AND PGAE
中文描述: 24位,96千赫立體聲A / D轉(zhuǎn)換器6ⅴ2通道MUX和PGAE
文件頁數(shù): 20/32頁
文件大?。?/td> 409K
代理商: PCM1851APJT
www.ti.com
Interface Timing
BCK
LRCK
DOUT
t
(BCKH)
t
(BCKL)
t
(LRHD)
t
(LRCP)
t
(LRSU)
t
(BCKP)
t
(CKDO)
t
(LRDO)
1.4 V
1.4 V
0.5 V
DD
T0017-02
PCM1850A
PCM1851A
SLES173–MARCH 2006
Figure 24
and
Figure 25
illustrate the interface timing in slave and master modes, respectively.
SYMBOL
t
(BCKP)
t
(BCKH)
t
(BCKL)
t
(LRSU)
t
(LRHD)
t
(LRCP)
t
(CKDO)
t
(LRDO)
t
r
t
f
NOTE: Timing measurement reference level is 1.4 V for input and 0.5 V
DD
for output. Rise and fall times are measured from 10% to 90% of
IN/OUT signal swing. Load capacitance of DOUT is 20 pF.
PARAMETER
MIN
150
60
60
20
20
10
–10
–10
TYP
MAX
UNIT
ns
ns
ns
ns
ns
μ
s
ns
ns
ns
ns
BCK period
BCK pulse duration, HIGH
BCK pulse duration, LOW
LRCK setup time to BCK rising edge
LRCK hold time to BCK rising edge
LRCK period
Delay time, BCK falling edge to DOUT valid
Delay time, LRCK edge to DOUT valid
Rise time of all signals
Fall time of all signals
20
20
10
10
Figure 24. Audio Data Interface Timing (Slave Mode: LRCK, BCK Work as Inputs)
20
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