at43312 ATMEL Corporation, at43312 Datasheet - Page 20

• Manufacturer Part Number: at43312
• Description: Self- And Bus- Powered Usb Hub Controller
• Manufacturer: ATMEL Corporation

DPx, DMx Driver Characteristics, Low Speed Operation
Dpx, Dmx Hub Timings, High Speed Operation
Dpx, Dmx Hub Timings, Low Speed Operation
20
Symbol
T
T
T
T
TRFM
V
Symbol
T
T
T
T
T
T
T
Symbol
T
T
T
T
T
T
R
R
F
F
HDD1
HDD2
HDJ1
HDJ2
SOP
EOPD
HESK
LHDD
LHDJ1
LHDJ2
SOP
LEOPD
LHESK
CRS
Parameter
Rise time
Rise time
Fall time
Fall time
TR/TF matching
Output signal crossover
Parameter
Hub Differential Data Delay
with cable
without cable
Hub Diff Driver Jitter
To Next Transition
For Paired Transitions
Data Bit Width Distortion
after SOP
Hub EOP Delay Relative
to THDD
Hub EOP Output Width Skew
Parameter
Hub Differential Data Delay
Downstr Hub Diff Driver Jitter
To Next Transition
For Paired Transitions
Data Bit Width Distortion
after SOP
Hub EOP Delay Relative
to THDD
Hub EOP Output Width Skew
AT43312
Condition
C
C
C
C
Condition
Condition
L
L
L
L
= 50 pF
= 350 pF
= 50 pF
= 350 pF
Min
75
75
80
1.3
Min
-3
-1
-5
0
-15
Min
-45
-15
-60
0
-300
Max
300
300
120
2.0
Max
70
40
3
1
3
15
15
Max
300
45
15
45
200
300
Unit
ns
ns
ns
ns
%
V
Unit
ns
ns
ns
ns
ns
ns
ns
Unit
ns
ns
ns
ns
ns
ns