USB2.0 PHY IC
Datasheet
Revision 1.5 (03-24-06) 16 SMSC GT3200, SMSC USB3250
DATASHEET
HS Data Signaling Common
Mode Voltage Range
V
CMHS
-50 500 mV
HS Squelch Detection
Threshold (Differential)
V
HSSQ
Squelch Threshold 100 mV
Unsquelch Threshold 150 mV
OUTPUT LEVELS
High Speed Low Level Output
Voltage (DP/DM referenced to
GND)
V
HSOL
45Ω load -10 10 mV
High Speed High Level Output
Voltage (DP/DM referenced to
GND)
V
HSOH
45Ω load 360 440 mV
High Speed IDLE Level
Output Voltage (DP/DM
referenced to GND)
V
OLHS
45Ω load -10 10 mV
Chirp-J Output Voltage
(Differential)
V
CHIRPJ
HS termination resistor
disabled, pull-up resistor
connected. 45Ω load.
700 1100 mV
Chirp-K Output Voltage
(Differential)
V
CHIRPK
HS termination resistor
disabled, pull-up resistor
connected. 45Ω load.
-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
Table 6.4 Dynamic Characteristics: Analog I/O Pins (DP/DM)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
FS OUTPUT DRIVER TIMING
Rise Time T
FSR
CL = 50pF; 10 to 90% of
|V
OH
- V
OL
|
420ns
Fall Time T
FFF
CL = 50pF; 10 to 90% of
|V
OH
- V
OL
|
420ns
Output Signal Crossover
Voltage
V
CRS
Excluding the first
transition from IDLE
state
1.3 2.0 V
Differential Rise/Fall Time
Matching
F
RFM
Excluding the first
transition from IDLE
state
90 111.1 %
(V
DD1.8
=1.6 to 2.0V; V
DD3.3
=3.0 to 3.6V; V
SS
= 0V; T
A
= -40
o
C to +85
o
C; unless otherwise specified.)
Table 6.3 DC Electrical Characteristics: Analog I/O Pins (DP/DM) (continued)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
(V
DD1.8
=1.6 to 2.0V; V
DD3.3
=3.0 to 3.6V; V
SS
= 0V; T
A
= -40
o
C to +85
o
C; unless otherwise specified.)
