Filter
Top Products
4-Port USB 2.0 Controller
Datasheet
SMSC USB20H04 Page 15 Revision 1.63 (03-30-07)
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 SYMBOL CONDITIONS MIN TYP MAX UNITS
FS FUNCTIONALITY
Input levels
Differential Receiver Input
Sensitivity
V
DIFS
| VI(DP) - VI(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
Output Levels
Low Level Output Voltage V
FSOL
Pull-up resistor on DP;
R
L
= 1.5kΩ to V
DD3.3
0.3 V
High Level Output Voltage V
FSOH
Pull-down resistor on DP, DM;
R
L
= 15kΩ 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
Ω
Pull-up Resistor Impedance Z
PU
1.425 1.575
KΩ
Termination Voltage For Pull-up
Resistor On Pin DP
V
TERM
3.0 3.6 V
HS FUNCTIONALITY
Input levels
HS Differential Input Sensitivity V
DIHS
| VI(DP) - VI(DM) | 100 mV
HS Data Signaling Common
Mode Voltage Range
V
CMHS
-50 500 mV
Squelch Threshold 100 mV HS Squelch Detection
Threshold (Differential)
V
HSSQ
Unsquelch Threshold 150 mV
Output Levels
High Speed Low Level
Output Voltage (DP/DM
referenced to GND)
V
HSOL
When driven into a precision 45Ω
load
-10 10 mV
High Speed High Level
Output Voltage (DP/DM
referenced to GND)
V
HSOH
When driven into a precision 45Ω
load
360 440 mV
High Speed IDLE Level
Output Voltage (DP/DM
referenced to GND)
V
OLHS
When driven into a precision 45Ω
load
-10 10 mV
Chirp-J Output Voltage
(Differential)
V
CHIRPJ
HS termination resistor disabled,
pull-up resistor connected.
700 1100 mV
Chirp-K Output Voltage
(Differential)
V
CHIRPK
HS termination resistor disabled,
pull-up resistor connected.
-900 -500 mV
Leakage Current
OFF-State Leakage Current I
LZ
± 1 uA
Port Capacitance
Transceiver Input Capacitance C
IN
Pin to GND 5 10 pF
6.1 Dynamic Characteristics: Analog I/O Pins (DP/DM)
Compliant with USB 2.0 Specification. For complete specifications consult the Universal Serial Bus
Specification Revision 2.0.