Intel Arria 10 User Manual

Figure 223. Transmitter Buffer
TX
V
CM
To Serial Data
Output Pins
(tx_serial_data)
Programmable
Pre-Emphasis
and VOD
Receiver
Detect
On-Chip
Termination
85Ω, 100Ω, OFF
R1*
R1*
R1* - Half of the actual on-chip termination selected.
5.1.1.2.1. High Speed Differential I/O
To improve performance, the Arria 10 transmitter uses a new architecture in the
output buffer—High Speed Differential I/O. You should select "High Speed Differential
I/O" for I/O standard of Arria 10 transmitter pin in Quartus Prime Assignment Editor
or QSF file.
5.1.1.2.2. Programmable Output Differential Voltage
You can program the differential output voltage (output swing) to handle different
channel losses and receiver requirements. There are 31 differential V
OD
settings up to
VCCT power supply level. The step size is 1/30 of the VCCT power supply level.
Figure 224. V
OD
(Differential) Signal Level
Differential Waveform
+V
P
V
OD
(Differential)
–V
N
V
OD
(Differential) = V
P
- V
N
0 V Differential
Related Information
• XCVR_A10_RX_TERM_SEL on page 589
• For more information, refer to Arria 10 Pre-Emphasis and Output Swing Settings
5. Arria 10 Transceiver PHY Architecture
UG-01143 | 2018.06.15
Intel
®
Arria
®
10 Transceiver PHY User Guide
449

Intel Arria 10 Specifications

General

Brand	Intel
Model	Arria 10
Category	Transceiver
Language	English