at43312 ATMEL Corporation, at43312 Datasheet - Page 19

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

AC Characteristics
Dpx, Dmx Driver Characteristics, Full Speed Operation
Note:
Dpx, Dmx Data Source Timings, Full Speed Operation
Symbol
T
T
TRFM
V
Z
Symbol
T
T
T
T
T
T
T
T
T
T
R
F
DRV
DRATE
FRAME
DJ1
DJ2
EOPT
DEOP
JR1
JR2
EOPR1
EOPR2
CRS
1. with external 27
Parameter
Rise time
Fall time
TR/TF matching
Output signal crossover
Driver output resistance
Parameter
Full Speed Data Rate
Frame Interval
Source Diff Driver Jitter
To Next Transition
For Paired Transitions
Source EOP Width
Differential to EOP Transistion
Skew
Recvr Data Jitter Tolerance
To Next Transition
For Paired Transitions
EOP Width at Receiver
Must Reject as EOP
Must Receive as EOP
series resistor
(1)
Condition
C
C
Steady state drive
Condition
Average Bit Rate
L
L
= 50 pF
= 50 pF
Min
4
4
90
1.3
29
Min
11.97
0.9995
-3.5
-4.0
160
-2
-18.5
-9
40
82
Max
20
20
110
2.0
44
Max
12.03
1.0005
3.5
4.0
175
5
18.5
9
Unit
ns
ns
%
V
Unit
Mbs
ms
ns
ns
ns
ns
ns
ns
ns
ns
19