T1022NXE7MQA
| Model | T1022NXE7MQA |
| Description | 32-BIT, 1200MHz, RISC PROCESSOR, PBGA780 |
| PDF file | Total 197 pages (File size: 1M) |
| Chip Manufacturer | PHILIPS |
Electrical characteristics
Table 112. PCI Express 2.0 (2.5 GT/s) differential transmitter output AC specifications
4
(continued)
Parameter
Symbol
Min
Typ
Max
Units
Notes
edges of the 250 consecutive UI in the
center of the 3500 UI used for calculating
the transmitter UI. See Notes 1 and 2.
AC coupling capacitor
C
TX
75
-
200
nF
All transmitters must be AC coupled. The
AC coupling is required either within the
media or within the transmitting component
itself. See Note 3.
Notes:
1. Specified at the measurement point into a timing and voltage test load as shown in
and measured over any 250
consecutive transmitter UIs.
2. A T
TX-EYE
= 0.75 UI provides for a total sum of deterministic and random jitter budget of T
TX-JITTER-MAX
= 0.25 UI for the
transmitter collected over any 250 consecutive transmitter UIs. The T
TX-EYE-MEDIAN-to-MAX-JITTER
median is less than half of the
total transmitter jitter budget collected over any 250 consecutive transmitter UIs. It must be noted that the median is not the
same as the mean. The jitter median describes the point in time where the number of jitter points on either side is
approximately equal as opposed to the averaged time value.
3. The chip's SerDes transmitter does not have C
TX
built-in. An external AC coupling capacitor is required.
4. For recommended operating conditions, see
This table defines the PCI Express 2.0 (5 GT/s) AC specifications for the differential
output at all transmitters. The parameters are specified at the component pins. The AC
timing specifications do not include RefClk jitter.
Table 113. PCI Express 2.0 (5 GT/s) differential transmitter output AC
specifications
3
Parameter
Unit Interval
UI
Symbol
Min
Typ
Max
Units
Notes
Each UI is 200 ps ± 300 ppm. UI does not
account for spread-spectrum clock dictated
variations.
The maximum transmitter jitter can be
derived as: T
TX-MAX-JITTER
= 1 - T
TX-EYE
=
0.25 UI.
See Note 1.
Transmitter RMS deterministic T
TX-HF-DJ-DD
jitter > 1.5 MHz
Transmitter RMS deterministic T
TX-LF-RMS
jitter < 1.5 MHz
AC coupling capacitor
C
TX
-
-
75
-
3.0
-
0.15
-
200
ps
ps
nF
-
Reference input clock RMS jitter (< 1.5
MHz) at pin < 1 ps
All transmitters must be AC coupled. The
AC coupling is required either within the
media or within the transmitting component
itself. See Note 2.
199.94 200.00 200.06 ps
Minimum transmitter eye width T
TX-EYE
0.75
-
-
UI
Notes:
1. Specified at the measurement point into a timing and voltage test load as shown in
and measured over any 250
consecutive transmitter UIs.
QorIQ T1042, T1022 Data Sheet, Rev. 2, 06/2015
150
Freescale Semiconductor, Inc.
