參數(shù)資料
型號: GT3200-JN
廠商: STANDARD MICROSYSTEMS CORP
元件分類: 網(wǎng)絡(luò)接口
英文描述: USB2.0 PJY IC
中文描述: DATACOM, INTERFACE CIRCUIT, PQFP64
封裝: 7 X 7 MM, 1.40 MM HEIGHT, TQFP-64
文件頁數(shù): 21/51頁
文件大?。?/td> 1462K
代理商: GT3200-JN
USB2.0 PHY IC
SMSC GT3200, SMSC USB3250
16
Revision 1.3 (10-05-04)
DATASHEET
.
The eye pattern in
Figure 6.5
defines the receiver sensitivity requirements for a hub (signal applied at
test point TP2 of
Figure 6.3
) or a device without a captive cable (signal applied at test point TP3 of
Figure 6.3
). The corresponding signal levels and timings are given in
Table 6.7
. Timings are given as
a percentage of the unit interval (UI), which represents the nominal bit duration for a 480 Mbit/s
transmission rate.
Figure 6.4 Eye Pattern for Transmit Waveform and Eye Pattern Definition
Table 6.6 Eye Pattern for Transmit Waveform and Eye Pattern Definition
VOLTAGE LEVEL (D+, D-)
TIME
(% OF UNIT INTERVAL)
Level 1
525mV in UI following a transition,
475mV in all others
N/A
Level 2
-525mV in UI following a transition,
-475mV in all others
N/A
Point 1
Point 2
Point 3
Point 4
Point 5
Point 6
0V
7.5% UI
0V
92.5% UI
300mV
37.5% UI
300mV
62.5% UI
-300mV
37.5% UI
-300mV
62.5% UI
V lt
0
Differential
-400mV
Differential
400mV
Unit Interval
100%
Level 2
Level 1
Point 1
Point 2
Point 4
Point 3
Point 6
Point 5
0%
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