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参数资料
| 型号： | 20H04 |
| 厂商： | SMSC Corporation |
| 英文描述： | 4-PORT USB2.0 HUB CONTROLLER |
| 中文描述： | 4端口USB2.0集线器控制器 |
| 文件页数： | 18/38页 |
| 文件大小： | 919K |
| 代理商： | 20H04 |
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4-Port USB2.0 Hub Controller
Datasheet
Revision 1.63 (10-14-04)
Page 18
SMSC USB20H04
DATASHEET
Table 6.4 - DC Electrical Characteristics: Analog I/O Pins (DP/DM)
(VDD1.8 =1.74 to 2.0V; VDD3.3 =3.0 to 3.6V; VSS = 0V; TA = 0
o
C to +70
o
C; unless otherwise specified.)
PARAMETER
FS FUNCTIONALITY
Input levels
Differential Receiver Input
Sensitivity
Differential Receiver
Common-Mode Voltage
Single-Ended Receiver Low
Level Input Voltage
Single-Ended Receiver High
Level Input Voltage
Output Levels
Low Level Output Voltage
SYMBOL
V
DIFS
CONDITIONS
MIN
0.2
TYP
MAX UNITS
| VI(DP) - VI(DM) |
V
V
CMFS
0.8
2.5
V
V
ILSE
0.8
V
V
IHSE
2.0
V
Pull-up resistor on DP;
R
L
= 1.5k
to V
DD3.3
Pull-down resistor on DP, DM;
R
L
= 15k
to GND
Steady state drive
V
V
FSOL
0.3
High Level Output Voltage
V
FSOH
2.8
3.6
V
Termination
Driver Output Impedance for
HS and FS
Pull-up Resistor Impedance
Termination Voltage For Pull-up
Resistor On Pin DP
HS FUNCTIONALITY
Input levels
HS Differential Input Sensitivity
HS Data Signaling Common
Mode Voltage Range
HS Squelch Detection
Threshold (Differential)
Z
HSDRV
40.5
45
49.5
Z
PU
V
TERM
1.425
3.0
1.575
3.6
K
V
| VI(DP) - VI(DM) |
V
DIHS
V
CMHS
100
-50
mV
mV
500
Squelch Threshold
Unsquelch Threshold
100
mV
mV
V
HSSQ
V
HSOL
150
Output Levels
High Speed Low Level
Output Voltage (DP/DM
referenced to GND)
High Speed High Level
Output Voltage (DP/DM
referenced to GND)
High Speed IDLE Level
Output Voltage (DP/DM
referenced to GND)
Chirp-J Output Voltage
(Differential)
Chirp-K Output Voltage
(Differential)
Leakage Current
OFF-State Leakage Current
Port Capacitance
Transceiver Input Capacitance
When driven into a precision 45
load
-10
10
mV
V
HSOH
When driven into a precision 45
load
360
440
mV
V
OLHS
When driven into a precision 45
load
-10
10
mV
V
CHIRPJ
HS termination resistor disabled,
pull-up resistor connected.
HS termination resistor disabled,
pull-up resistor connected.
Pin to GND
700
1100
mV
V
CHIRPK
-900
-500
mV
I
LZ
C
IN
± 1
10
uA
pF
5
6.1
Dynamic Characteristics: Analog I/O Pins (DP/DM)
Compliant with USB2.0 Specification. For complete specifications consult the
Universal Serial Bus
Specification Revision 2.0.
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