Highly Integrated Full Featured Hi-Speed USB 2.0 ULPI Transceiver
Datasheet
Table 4.5 DC Characteristics: Analog I/O Pins (DP/DM) (continued)
PARAMETER
SYMBOL
CONDITIONS
MIN
2.8
TYP
MAX
3.6
UNITS
High Level Output Voltage
VFSOH
Pull-down resistor on DP,
DM; Note 4.6
RL = 15kΩ to GND
V
Termination
Driver Output Impedance for
HS and FS
ZHSDRV
Steady state drive
40.5
45
49.5
Ω
Input Impedance
ZINP
RPU
RPU
RX, RPU, RPD disabled
Bus Idle, Note 4.5
1.0
MΩ
kΩ
kΩ
Pull-up Resistor Impedance
Pull-up Resistor Impedance
0.900
1.425
1.24
2.26
1.575
3.09
Device Receiving,
Note 4.5
Pull-dn Resistor Impedance
RPD
RCD
Note 4.5
14.25
128
16.9
170
20
kΩ
kΩ
Weak Pull-up Resistor
Impedance
Configured by bits 4 and 5
in USB IO & Power
Management register.
212
HS FUNCTIONALITY
Input levels
HS Differential Input
Sensitivity
VDIHS
| V(DP) - V(DM) |
100
-50
mV
mV
mV
HS Data Signaling Common
Mode Voltage Range
VCMHS
500
150
High-Speed Squelch
Note 4.7
100
Detection Threshold
VHSSQ
(Differential Signal Amplitude)
Output Levels
Hi-Speed Low Level
Output Voltage (DP/DM
referenced to GND)
VHSOL
45Ω load
45Ω load
45Ω load
-10
10
mV
mV
mV
mV
mV
Hi-Speed High Level
Output Voltage (DP/DM
referenced to GND)
VHSOH
360
-10
440
10
Hi-Speed IDLE Level
Output Voltage (DP/DM
referenced to GND)
VOLHS
Chirp-J Output Voltage
(Differential)
VCHIRPJ
HS termination resistor
disabled, pull-up resistor
connected. 45Ω load.
700
-900
1100
-500
Chirp-K Output Voltage
(Differential)
VCHIRPK
HS termination resistor
disabled, pull-up resistor
connected. 45Ω load.
Leakage Current
OFF-State Leakage Current
ILZ
±10
uA
Revision 1.0 (07-14-09)
SMSC USB3320
DATA1S8HEET
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