参数资料
型号: SI3050-E1-FT
厂商: Silicon Laboratories Inc
文件页数: 24/128页
文件大小: 0K
描述: IC VOICE DAA SYSTEM SIDE 20TSSOP
标准包装: 74
系列: *
Si3050 + Si3011/18/19
12
Rev. 1.5
Figure 4. PCM Highway Interface Timing Diagram (RXS = TXS = 1)
Table 8. Switching Characteristics—PCM Highway Serial Interface
(VD = 3.0 to 3.6 V, TA = 0 to 70 °C, CL = 20 pF)
Parameter1
Symbol
Test
Conditions
Min
Typ
Max
Units
Cycle Time PCLK
tp
122
—
3906
ns
Valid PCLK Inputs
—
256
512
768
1.024
1.536
2.048
4.096
8.192
—
kHz
MHz
FSYNC Period2
tfp
—125
—
s
PCLK Duty Cycle
tdty
40
50
60
%
PCLK Jitter-Tolerance
tjitter
——
2
ns
FSYNC Jitter Tolerance
tjitter
—
±120
ns
Rise Time, PCLK
tr
—
25
ns
Fall Time, PCLK
tf
—
25
ns
Delay Time, PCLK Rise to DTX Active
td1
—
20
ns
Delay Time, PCLK Rise to DTX Transition
td2
—
20
ns
Delay Time, PCLK Rise to DTX Tri-State3
td3
—
20
ns
Setup Time, FSYNC Rise to PCLK Fall
tsu1
25
—
ns
Hold Time, PCLK Fall to FSYNC Fall
th1
20
—
ns
Setup Time, DRX Transition to PCLK Fall
tsu2
25
—
ns
Hold Time, PCLK Falling to DRX Transition
th2
20
—
ns
Notes:
1. All timing is referenced to the 50% level of the waveform. Input test levels are VIH =VO – 0.4 V, VIL = 0.4 V, rise and fall
times are referenced to the 20% and 80% levels of the waveform.
2. FSYNC must be 8 kHz under all operating conditions.
3. Specification applies to PCLK fall to DTX tri-state when that mode is selected.
t
su1
t
h1
t
p
t
su2
t
h2
t
d3
t
d2
t
d1
PCLK
FSYNC
DRX
DTX
t
fp
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