Agilex™ 5 FPGAs and SoCs Device Data Sheet

ID 813918
Date 4/01/2024
Public
Document Table of Contents

LVDS SERDES Specifications

Table 58.  D-Series and E-Series Device Group A FPGAs LVDS SERDES Specifications

LVDS serializer/deserializer (SERDES) block supports SERDES factor J = 4 and 8.

DDR registers support SERDES factor J = 1 and 2.

You must calculate the leftover timing margin in the receiver by performing link timing closure analysis. You must consider the board skew margin, transmitter channel-to-channel skew, and receiver sampling margin to determine the leftover timing margin.

For specification status, see the Data Sheet Status table

Parameter Symbol Condition –1 Speed Grade –2 Speed Grade –3 Speed Grade Unit
Min Typ Max Min Typ Max Min Typ Max
Clock frequency fHSCLK_in (input clock frequency) True Differential Signaling I/O Standards Clock boost factor W = 1 to 40102 10 800 10 800 10 625 MHz
fHSCLK_in (input clock frequency) SLVS400 I/O Standards Clock boost factor W = 1 to 40102 10 435.5 10 435.5 10 435.5 MHz
fHSCLK_in (input clock frequency) Single-Ended I/O Standards Clock boost factor W = 1 to 40102 10 625 10 625 10 525 MHz
fHSCLK_OUT (output clock frequency) True Differential Signaling I/O Standards 800 800 625 MHz
Transmitter True Differential Signaling I/O Standards - fHSDR (data rate)103 SERDES factor J = 4 and 8104 105 106 600 1,600 600 1,600 600 1,250 Mbps
SERDES factor J = 2, uses DDR registers 150 840107 150 107 150 107 Mbps
SERDES factor J = 1, uses DDR registers 150 420107 150 107 150 107 Mbps
tx Jitter - True Differential Signaling I/O Standards Total jitter for data rate, 600 Mbps – 1.6 Gbps ≤1,600 Mbps: 160

≤1,434 Mbps: 200

≤1,250 Mbps: 250

≤1,000 Mbps: 300

≤800 Mbps: 320

600 Mbps: 340

≤1,600 Mbps: 160

≤1,434 Mbps: 200

≤1,250 Mbps: 250

≤1,000 Mbps: 300

≤800 Mbps: 320

600 Mbps: 340

≤1,250 Mbps: 250

≤1,000 Mbps: 300

≤800 Mbps: 320

600 Mbps: 340

ps
tDUTY 108 TX output clock duty cycle for True Differential Signaling I/O Standards 45 50 55 45 50 55 45 50 55 %
tRISE and tFALL 105 109 True Differential Signaling I/O Standards 160 160 200 ps
TCCS 103 108 True Differential Signaling I/O Standards 330 330 330 ps
Receiver True Differential Signaling I/O Standards - fHSDRDPA (data rate) SERDES factor J = 4 and 8104 105 106 600 1,600 600 1,600 600 1,250 Mbps
SLVS400 I/O Standards - fHSDRDPA (data rate) SERDES factor J = 4 and 8104 105 106 600 871 600 871 600 871 Mbps
fHSDR (data rate) (without DPA)103 SERDES factor J = 4 and 8104 105 106 106 110 106 110 106 110 Mbps
SERDES factor J = 2, uses DDR registers 106 107 106 107 106 107 Mbps
SERDES factor J = 1, uses DDR registers 106 107 106 107 106 107 Mbps
DPA (FIFO mode) DPA run length ≤10,000 ≤10,000 ≤10,000 UI
DPA (soft CDR mode) DPA run length SGMII/GbE protocol 5 5 5 UI
All other protocols 50 data transition per 208 UI 50 data transition per 208 UI 50 data transition per 208 UI
Soft CDR mode Soft-CDR ppm tolerance –300 300 –300 300 –300 300 ppm
Non DPA mode Sampling window 330 330 330 ps
Table 59.  E-Series Device Group B FPGAs LVDS SERDES Specifications

LVDS serializer/deserializer (SERDES) block supports SERDES factor J = 4 and 8.

DDR registers support SERDES factor J = 1 and 2.

You must calculate the leftover timing margin in the receiver by performing link timing closure analysis. You must consider the board skew margin, transmitter channel-to-channel skew, and receiver sampling margin to determine the leftover timing margin.

For specification status, see the Data Sheet Status table

Parameter Symbol Condition –4 Speed Grade –5 Speed Grade –6 Speed Grade Unit
Min Typ Max Min Typ Max Min Typ Max
Clock frequency fHSCLK_in (input clock frequency) True Differential Signaling I/O Standards Clock boost factor W = 1 to 40111 10 625 10 625 10 500 MHz
fHSCLK_in (input clock frequency) SLVS400 I/O Standards Clock boost factor W = 1 to 40111 10 435.5 10 435.5 10 435.5 MHz
fHSCLK_in (input clock frequency) Single-Ended I/O Standards Clock boost factor W = 1 to 40111 10 625 10 625 10 525 MHz
fHSCLK_OUT (output clock frequency) True Differential Signaling I/O Standards 625 625 500 MHz
Transmitter True Differential Signaling I/O Standards - fHSDR (data rate)112 SERDES factor J = 4 and 8113 114 115 600 1,250 600 1,250 600 1,000 Mbps
SERDES factor J = 2, uses DDR registers 150 840116 150 116 150 116 Mbps
SERDES factor J = 1, uses DDR registers 150 420116 150 116 150 116 Mbps
tx Jitter - True Differential Signaling I/O Standards Total jitter for data rate, 600 Mbps – 1.25 Gbps ≤1,250 Mbps: 250

≤1,000 Mbps: 300

≤800 Mbps: 320

600 Mbps: 340

≤1,250 Mbps: 250

≤1,000 Mbps: 300

≤800 Mbps: 320

600 Mbps: 340

≤1,000 Mbps: 300

≤800 Mbps: 320

600 Mbps: 340

ps
tDUTY 117 TX output clock duty cycle for True Differential Signaling I/O Standards 45 50 55 45 50 55 45 50 55 %
tRISE and tFALL 114 118 True Differential Signaling I/O Standards 160 160 200 ps
TCCS 112 117 True Differential Signaling I/O Standards 330 330 330 ps
Receiver119 True Differential Signaling I/O Standards - fHSDRDPA (data rate) SERDES factor J = 4 and 8113 114 115 600 1,250 600 1,250 600 1,000 Mbps
SLVS400 I/O Standards - fHSDRDPA (data rate) SERDES factor J = 4 and 8113 114 115 600 871 600 871 600 871 Mbps
fHSDR (data rate) (without DPA)112 SERDES factor J = 4 and 8113 114 115 115 120 115 120 115 120 Mbps
SERDES factor J = 2, uses DDR registers 115 116 115 116 115 116 Mbps
SERDES factor J = 1, uses DDR registers 115 116 115 116 115 116 Mbps
DPA (FIFO mode) DPA run length ≤10,000 ≤10,000 ≤10,000 UI
DPA (soft CDR mode) DPA run length SGMII/GbE protocol 5 5 5 UI
All other protocols 50 data transition per 208 UI 50 data transition per 208 UI 50 data transition per 208 UI
Soft CDR mode Soft-CDR ppm tolerance –300 300 –300 300 –300 300 ppm
Non DPA mode Sampling window 330 330 330 ps
102 Clock Boost Factor (W) is the ratio between the input data rate and the input clock rate.
103 Requires package skew compensation with PCB trace length.
104 The Fmax specification is based on the fast clock used for serial data. The interface Fmax is also dependent on the parallel clock domain which is design dependent and requires timing analysis.
105 The VCC and VCCP must be on a combined power layer and a maximum load of 5 pF for chip-to-chip interface.
106 The minimum specification depends on the clock source (for example, the PLL and clock pin) and the clock routing resource that you use. The I/O differential buffer and serializer do not have a minimum toggle rate.
107 The maximum ideal data rate is the SERDES factor (J) × the PLL maximum output frequency (fOUT) provided you can close the design timing and the signal integrity meets the interface requirements.
108 Not applicable for DIVCLK = 1.
109 This applies to default pre-emphasis and VOD settings only.
110 You can estimate the achievable maximum data rate for non-DPA mode by performing link timing closure analysis. You must consider the board skew margin, transmitter delay margin, and receiver sampling margin to determine the maximum data rate supported.
111 Clock Boost Factor (W) is the ratio between the input data rate and the input clock rate.
112 Requires package skew compensation with PCB trace length.
113 The Fmax specification is based on the fast clock used for serial data. The interface Fmax is also dependent on the parallel clock domain which is design dependent and requires timing analysis.
114 The VCC and VCCP must be on a combined power layer and a maximum load of 5 pF for chip-to-chip interface.
115 The minimum specification depends on the clock source (for example, the PLL and clock pin) and the clock routing resource that you use. The I/O differential buffer and serializer do not have a minimum toggle rate.
116 The maximum ideal data rate is the SERDES factor (J) × the PLL maximum output frequency (fOUT) provided you can close the design timing and the signal integrity meets the interface requirements.
117 Not applicable for DIVCLK = 1.
118 This applies to default pre-emphasis and VOD settings only.
119 When operating in DPA mode, you must enable the receiver equalization calibration feature of the input buffer.
120 You can estimate the achievable maximum data rate for non-DPA mode by performing link timing closure analysis. You must consider the board skew margin, transmitter delay margin, and receiver sampling margin to determine the maximum data rate supported.