Agilex™ 5 FPGAs and SoCs Device Data Sheet

ID 813918
Date 8/05/2024
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 40103 10 800 10 800 10 625 MHz
fHSCLK_in (input clock frequency) SLVS400 I/O Standards Clock boost factor W = 1 to 40103 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 40103 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)104 SERDES factor J = 4 and 8105 106 107 600 1,600 600 1,600 600 1,250 Mbps
SERDES factor J = 2, uses DDR registers 150 840108 150 108 150 108 Mbps
SERDES factor J = 1, uses DDR registers 150 420108 150 108 150 108 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 109 TX output clock duty cycle for True Differential Signaling I/O Standards 45 50 55 45 50 55 45 50 55 %
tRISE and tFALL 106 110 True Differential Signaling I/O Standards 160 160 200 ps
TCCS 104 109 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 8105 106 107 600 1600111 600 1600111 600 1250111 Mbps
SLVS400 I/O Standards - fHSDRDPA (data rate) SERDES factor J = 4 and 8105 106 107 600 891 600 891 600 891 Mbps
fHSDR (data rate) (without DPA)104 SERDES factor J = 4 and 8105 106 107 107 112 107 112 107 112 Mbps
SERDES factor J = 2, uses DDR registers 107 108 107 108 107 108 Mbps
SERDES factor J = 1, uses DDR registers 107 108 107 108 107 108 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 40113 10 625 10 625 10 500 MHz
fHSCLK_in (input clock frequency) SLVS400 I/O Standards Clock boost factor W = 1 to 40113 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 40113 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)114 SERDES factor J = 4 and 8115 116 117 600 1,250 600 1,250 600 1,000 Mbps
SERDES factor J = 2, uses DDR registers 150 840118 150 118 150 118 Mbps
SERDES factor J = 1, uses DDR registers 150 420118 150 118 150 118 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 119 TX output clock duty cycle for True Differential Signaling I/O Standards 45 50 55 45 50 55 45 50 55 %
tRISE and tFALL 116 120 True Differential Signaling I/O Standards 160 160 200 ps
TCCS 114 119 True Differential Signaling I/O Standards 330 330 330 ps
Receiver121 True Differential Signaling I/O Standards - fHSDRDPA (data rate) SERDES factor J = 4 and 8115 116 117 600 1250122 600 1250122 600 1000122 Mbps
SLVS400 I/O Standards - fHSDRDPA (data rate) SERDES factor J = 4 and 8115 116 117 600 891 600 891 600 891 Mbps
fHSDR (data rate) (without DPA)114 SERDES factor J = 4 and 8115 116 117 117 123 117 123 117 123 Mbps
SERDES factor J = 2, uses DDR registers 117 118 117 118 117 118 Mbps
SERDES factor J = 1, uses DDR registers 117 118 117 118 117 118 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
103 Clock Boost Factor (W) is the ratio between the input data rate and the input clock rate.
104 Requires package skew compensation with PCB trace length.
105 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.
106 The VCC and VCCP must be on a combined power layer and a maximum load of 5 pF for chip-to-chip interface.
107 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.
108 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.
109 Not applicable for DIVCLK = 1.
110 This applies to default pre-emphasis and VOD settings only.
111 1.05 V, 1.1 V, and 1.2 V True Differential Signaling I/O standards on receiver supports data rate up to 891 Mbps.
112 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.
113 Clock Boost Factor (W) is the ratio between the input data rate and the input clock rate.
114 Requires package skew compensation with PCB trace length.
115 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.
116 The VCC and VCCP must be on a combined power layer and a maximum load of 5 pF for chip-to-chip interface.
117 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.
118 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.
119 Not applicable for DIVCLK = 1.
120 This applies to default pre-emphasis and VOD settings only.
121 When operating in DPA mode, you must enable the receiver equalization calibration feature of the input buffer.
122 1.05 V, 1.1 V, and 1.2 V True Differential Signaling I/O standards on receiver supports data rate up to 891 Mbps.
123 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.