Datasheet

© 2008 Fairchild Semiconductor Corporation www.fairchildsemi.com
FUSB2805 • Rev. 1.0.3 44
FUSB2805 — USB2.0 High-Speed OTG Transceiver with ULPI Interface
Static Characteristics (Continued)
V
CC3V3
= V
CC
-0.1 to 3.6 V; V
DD1V2
=1.1 V to 1.25 V; V
IO
=1.65 V to 3.60 V; T
J
=-40°C to +85°C; unless otherwise specified.
Symbol
Parameter
Conditions
Min.
Typ.
Max.
Unit
V
BUS
Resistors
R
VBUS(PU)
V
BUS
Charge Resistance
Connect to V
CC3V3
when
CHRG_V
BUS
=1
281

R
VBUS(PD)
V
BUS
Discharge Resistance
Connect to GND when
DISCHRG_V
BUS
=1
656

R
VBUS(IDLE)
V
BUS
Idle Impedance
Not in Power-Down Mode
80
90
100
k
Chip Select De-assserted
or V
IO
Lost
40
100
ID Detection Circuit (ID)
t
ID
ID Detection Time
50
ms
R
ID_PU
ID Pull-Up Resistance
Bit ID_PULL_UP=1
40
50
60
k
R
ID_PU_WK
Weak ID Pull-Up Resistance
Bit ID_PULL_UP=0
320
400
480
k
V
PU_ID
ID Pull-Up Reference
3.0
3.3
3.6
V
V
TH_ID
ID Threshold
1.0
2.0
V
External Resistor Reference
V
RREF
Voltage Across External R
REF
(12 kΩ ±1%)
SUSPENDM Bit=HIGH
0.8
V
Reset
t
START_HOST
PHY Clock Startup when Remote
Wake-up Event Occurs
CLKIN Running,
Autoresume=0
850
µs
CLKIN Must be Started
First
(30)
, Autoresume=1
110.9
µs
Clock Input
f
CLKIN
Input Clock Frequency
(31)
USB Config 0
19.2
MHz
USB Config 1
26.0
J
CLKIN
RMS Jitter
200
ps

CLKIN
Duty Cycle
50
%
V
CLKIN
Amplitude
1.8
V
t
R_CLKIN
,
t
F_CLKIN
Rise and Fall Time
5
ns
Output CLOCK Characteristics
f
CLK60_OUT
Output Clock Frequency
Active Only When a Clock
is Input on CLKIN
60
MHz
J
CLK60_OUT
RMS Output Jitter
500
ps

CLK60_OUT
Duty Cycle
50
%
t
R_CLK60
Rise Time
CLOCK Pin Transitioning
from 10% to 90% of V
IO
(C
L
4 – 12 pF)
1.0
4.0
ns
t
F_CLK60
Fall Time
CLOCK Pin Transitioning
from 90% to 10% of V
IO
(C
L
4 – 12 pF)
1.0
4.4
ns
t
startPLL
Startup (PLL Stabilization) Time
Measured from Power
Good or Assertion of STP
640
µs
Notes:
29. Excludes suspend current through 15 k host pull-down when configured as a peripheral controller. Typically an
additional 200 µA is allowed.
30. Time for CLKIN to be woken up is a function of external system timing, so Autoresume is needed for remote
wake-up capability (please see Figure 18).
31. An external clock is to be applied to the CLKIN pin. Recommended frequency accuracy is 200 ppm.