OXU121HP Data Sheet
Oxford Semiconductor, Inc.
Table 8 DC Characteristics, Charge Pump
Symbol
CV
out
V
DD1.8
V
DDW
Note:
Parameter
Output voltage
Driving current
Start-up time when enabled
Condition
Driving current <= 100 mA
V
CPSUPPLY
= 3.3 V
Output voltage = 5 V
V
CPSUPPLY
= 3.3 V
RV
out
= 4.5 V (90%)
Min
4.75
Max
5.07
100
Unit
V
mA
µs
400 (typical)
The charge pump supply V
CPSUPPLY
supplies the external components of the charge
pump circuit.
Table 9 AC Characteristics, High-Speed DP
P
and
DM
P
Driver Characteristics
Symbol
t
HSR
t
HSF
R
DRV
Parameter
High-speed differential rise time
High-speed differential fall time
Driver output impedance
Equivalent resistance used as internal
chip
Condition
Min
500
500
40.5
49.5
Max
Unit
ps
ps
Ω
Table 10 AC Characteristics, Full-Speed DP
1
, DP
2
, DM
1
, DM
2
Driver Characteristics
Symbol
t
FR
t
FF
t
FRFM
Z
DRV
Rise time
Fall time
T
R
/T
F
matching
Driver output resistance
Steady state drive with external 33
Ω
series resistor
Parameter
C
L
= 50 pF
C
L
= 50 pF
Condition
Min
4
4
90
3
Max
20
20
110
9
Unit
ns
ns
%
Ω
Table 11 AC Characteristics, Low-Speed DP
1
, DP
2
, DM
1
, DM
2
Driver Characteristics
Symbol
t
LR
t
LF
t
FRFM
Rise time
Fall time
T
R
/T
F
matching
Parameter
Condition
C
L
= 200 - 600 pF
C
L
= 200 - 600 pF
Min
75
75
80
Max
300
300
125
Unit
ns
ns
%
8
External--Free Release
DS-0040 Aug 06
OXFORD [ OXFORD SEMICONDUCTOR ]
