參數(shù)資料
型號(hào): USB3450
廠商: SMSC Corporation
英文描述: HI-SPEED USB HOST OR DEVICE PHY WITH UTMI+INTERFACE
中文描述: 高速USB主機(jī)或設(shè)備與UTMI接口物理層
文件頁(yè)數(shù): 17/40頁(yè)
文件大?。?/td> 1086K
代理商: USB3450
Hi-Speed USB Host or Device PHY With UTMI+ Interface
Datasheet
SMSC USB3450
17
Revision 0.1 (05-11-05)
DATASHEET
Table 5.4 DC Electrical Characteristics: Analog I/O Pins (DP/DM)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
FS FUNCTIONALITY
Input levels
Differential Receiver Input
Sensitivity
V
DIFS
| V(DP) - V(DM) |
0.2
V
Differential Receiver
Common-Mode Voltage
V
CMFS
0.8
2.5
V
Single-Ended Receiver Low
Level Input Voltage
V
ILSE
0.8
V
Single-Ended Receiver High
Level Input Voltage
V
IHSE
2.0
V
Single-Ended Receiver
Hysteresis
V
HYSSE
0.050
0.150
V
Output Levels
Low Level Output Voltage
V
FSOL
Pull-up resistor on DP;
R
L
= 1.5k
to V
DD3.3
0.3
V
High Level Output Voltage
V
FSOH
Pull-down resistor on DP,
DM;
R
L
= 15k
to GND
2.8
3.6
V
Termination
Driver Output Impedance for
HS and FS
Z
HSDRV
Steady state drive
40.5
45
49.5
ù
Input Impedance
Z
INP
TX, RPU disabled
1.0
M
Pull-up Resistor Impedance
Z
PU
Bus Idle
0.900
1.24
1.575
k
Pull-up Resistor Impedance
Z
PURX
Device Receiving
1.425
2.26
3.09
k
Pull-dn Resistor Impedance
Z
PD
14.25
15.0
15.75
k
HS FUNCTIONALITY
Input levels
HS Differential Input
Sensitivity
V
DIHS
| V(DP) - V(DM) |
100
mV
HS Data Signaling Common
Mode Voltage Range
V
CMHS
-50
500
mV
HS Squelch Detection
Threshold (Differential)
V
HSSQ
Squelch Threshold
100
mV
Un-squelch Threshold
150
mV
Output Levels
Hi-Speed Low Level
Output Voltage (DP/DM
referenced to GND)
V
HSOL
45
load
-10
10
mV
Hi-Speed High Level
Output Voltage (DP/DM
referenced to GND)
V
HSOH
45
load
360
440
mV
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