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參數資料
型號: W99681CF
廠商: WINBOND ELECTRONICS CORP
英文描述: JPEG USB Dual Mode Camera Chip(運用JPEG壓縮技術、通用串行總線結構技術、雙制式的照相電路數字處理芯片的攝像照相機接口控制器)
中文描述: JPEG格式相機的USB雙模芯片(運用的JPEG壓縮技術,通用串行總線結構技術,雙制式的照相電路數字處理芯片的攝像照相機接口控制器)
文件頁數: 72/78頁
文件大小: 816K
代理商: W99681CF
W99681CF
- 72 -
Differential
Data Lines
Paired
Transitions
N * T
PERIOD
+ T
JR2
T
PERIOD
Consecutive
Transitions
N * T
PERIOD
+ T
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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