2008 Fairchild Semiconductor Corporation
www.fairchildsemi.com
FUSB2805 Rev. 1.0.3
44
F
USB2
8
0
5
—
USB2
.0
High
-S
pee
d
OTG
Tra
nsc
e
iv
e
rw
ith
UL
P
I
Inter
fac
e
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
VBUS Resistors
RVBUS(PU)
VBUS Charge Resistance
Connect to VCC3V3 when
CHRG_VBUS=1
281
RVBUS(PD)
VBUS Discharge Resistance
Connect to GND when
DISCHRG_VBUS=1
656
RVBUS(IDLE)
VBUS Idle Impedance
Not in Power-Down Mode
80
90
100
k
Chip Select De-assserted
or VIO Lost
40
100
ID Detection Circuit (ID)
tID
ID Detection Time
50
ms
RID_PU
ID Pull-Up Resistance
Bit ID_PULL_UP=1
40
50
60
k
RID_PU_WK
Weak ID Pull-Up Resistance
Bit ID_PULL_UP=0
320
400
480
k
VPU_ID
ID Pull-Up Reference
3.0
3.3
3.6
V
VTH_ID
ID Threshold
1.0
2.0
V
External Resistor Reference
VRREF
Voltage Across External RREF
(12
kΩ ±1%)
SUSPENDM Bit=HIGH
0.8
V
Reset
tSTART_HOST
PHY Clock Startup when Remote
Wake-up Event Occurs
CLKIN Running,
Autoresume=0
850
s
CLKIN Must be Started
110.9
s
Clock Input
fCLKIN
USB Config 0
19.2
MHz
USB Config 1
26.0
JCLKIN
RMS Jitter
200
ps
CLKIN
Duty Cycle
50
%
VCLKIN
Amplitude
1.8
V
tR_CLKIN,
tF_CLKIN
Rise and Fall Time
5
ns
Output CLOCK Characteristics
fCLK60_OUT
Output Clock Frequency
Active Only When a Clock
is Input on CLKIN
60
MHz
JCLK60_OUT
RMS Output Jitter
500
ps
CLK60_OUT
Duty Cycle
50
%
tR_CLK60
Rise Time
CLOCK Pin Transitioning
from 10% to 90% of VIO
(CL 4 – 12 pF)
1.0
4.0
ns
tF_CLK60
Fall Time
CLOCK Pin Transitioning
from 90% to 10% of VIO
(CL 4 – 12 pF)
1.0
4.4
ns
tstartPLL
Startup (PLL Stabilization) Time
Measured from Power
Good or Assertion of STP
640
s
Notes:
29. Excludes suspend current through 15 k
host pull-down when configured as a peripheral controller. Typically an
additional 200 A is allowed.
30. Time for CLKIN to be woken up is a function of external system timing, so Autoresume is needed for remote
31. An external clock is to be applied to the CLKIN pin. Recommended frequency accuracy is 200 ppm.