2008 Fairchild Semiconductor Corporation
www.fairchildsemi.com
FUSB2805 Rev. 1.0.3
43
F
USB2
8
0
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—
USB2
.0
High
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Static Characteristics (Continued)
VCC3V3=VCC-0.1 to 3.6 V; VDD1V2=1.1 V to 1.25 V; VIO=1.65 V to 3.60 V; TJ=-40°C to +85°C; unless otherwise specified.
Symbol
Parameter
Conditions
Min.
Typ.
Max.
Unit
Analog I/O Pins (DP, DM)
FS/LS Path
VDI
Differential Input Sensitivity
|VDP – VDM|
0.2
V
VCM
Differential Common Mode Voltage
Includes VDI Range
0.8
2.5
V
VIL
LOW-Level Input Voltage
0.8
V
VIH
HIGH-Level Input Voltage
2.0
V
VOL
LOW-Level Output Voltage
Pull-Up on DP;
RL=1.5 k to 3.6 V
0
0.3
V
VOH
HIGH-Level Output Voltage
Pull-Down on DP/DM;
RL=15 k to GND
2.8
3.6
V
VTERM
Termination Voltage for 1.5
kΩ Pull-Up Resistor
3.0
3.6
V
RPU
Pull-Up Resistance on DP
Per USB2.0 Resistor ECN
900
1575
RWKPU
Weak Pull-Up Resistance on DP
Bit DP_WKPU_EN=1,
VBUS>VA-SESS_VLD
105.8
132.0
158.0
k
HS Path
VHSSQ
High-Speed Squelch Detection
Threshold
Squelch Detected
100
mV
No Squelch Detected
150
VDSCHS
HS Disconnect Detection Threshold (Differential)
525
625
mV
VDIHS
HS Differential Input Sensitivity
|VDP – VDM|
300
mV
VCMHS
HS Differential Common-Mode
Voltage
Includes VDIHS Range
-50
+500
mV
VILHS
HS Idle-Level Input Voltage (Differential)
-10
+10
mV
VIHHS
HS LOW-Level Input Voltage (Differential)
-10
+10
mV
VOLHS
HS HIGH-Level Output Voltage
360
440
mV
VCHIRPJ
Chirp-J Output Voltage (Differential)
700
1100
mV
VCHIRPK
Chirp-K Output Voltage (Differential)
-900
-500
mV
IOZ
Leakage Current
-4
+4
A
ZDRV
Driver Output Impedance (Both HS
and FS)
Steady-State Conditions per
USB2.0
40.5
49.5
ZIN
Input Impedance
0.8
M
RPD
Pull-Down Resistance on DP, DM
Per USB2.0 Resistor ECN
14.25
24.80
k
CI/O
Capacitance
Pin to GND
10
pF
VBUS Comparators
Vth(VBUSVLD)
VBUS Valid Threshold
4.40
4.75
V
Vth(SESSEND)
VBUS Session-End Comparator Threshold
0.2
0.8
V
Vhys(SESSEND) VBUS Session-End Comparator Hysteresis
150
mV
Vth(SESSVLD)
VBUS Session-Valid Comparator
Threshold
A-Device and B-Device
0.8
2.0
V
Vhys(SESSVLD) VBUS Session-Valid Comparator Hysteresis
200
mV
Continued on the following page
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