參數(shù)資料
型號(hào): W9968CF
英文描述: Digital Camera
中文描述: 數(shù)碼相機(jī)
文件頁數(shù): 72/78頁
文件大小: 814K
代理商: W9968CF
W9968CF
- 72 -
Differential
Data Lines
Paired
Transitions
N * T
PERIOD
+ T
JR2
T
PERIOD
Consecutive
Transiti + T
N * T
PERIOD
JR1
T
JR
T
JR1
T
JR2
Figure 9.4 Receiver Jitter Tolerance
Table 9.4 USB Transceiver AC Characteristics
Symbol
Parameter
Conditions
Min.
Max.
Unit
T
R
T
F
T
RFM
T
DRATE
Rise Time
CL = 50 pF
4
20
ns
Fall Time
CL = 50 pF
4
20
ns
Rise/Fall Time Matching
90
110
%
Full Speed Data Rate
Average bit rate
(12 Mb/s
±
0.25%)
11.97
12.03
Mbps
T
DJ1
T
DJ2
T
EOPT
T
DEOP
Source Differential Driver Jitter
To Next Transition
For Paired Transitions
-3.5
-4.0
3.5
4.0
ns
ns
Source EOP Width
160
175
ns
Differential to EOP Transition Skew
-2
5
ns
T
JR1
T
JR2
Receiver Data Jitter Tolerance
To Next Transition
For Paired Transitions
-18.5
-9
18.5
9
ns
ns
T
EOPR1
T
EOPR2
EOP Width at Receiver
Must Reject as EOP
Must Accept as EOP
40
82
ns
ns
9.3.2 RESET Timing AC Characteristics
RSTIN#
T
RST
Figure 9.5 RESET Timing
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