參數(shù)資料
型號: ORLI10G2BM680-DB
廠商: LATTICE SEMICONDUCTOR CORP
元件分類: FPGA
英文描述: FPGA, 1296 CLBS, 333000 GATES, PBGA680
封裝: PLASTIC, FBGA-680
文件頁數(shù): 30/78頁
文件大?。?/td> 1689K
代理商: ORLI10G2BM680-DB
Lattice Semiconductor
ORCA ORLI10G Data Sheet
36
Timing Characteristics
Receive Input Data Interface
Receive STS-48/STS-192 (2.5G/10G) Data Inputs
Figure 19 illustrates the timing for the receive STS-48/STS-192 data stream. Both the clock and data pins are Low-
Voltage Differential Signal (LVDS) input buffers. The expected clock rate is 622 MHz—850 MHz, and the receive
data is clocked on the rising edge of the clock. In 2.5G mode, each of the four channels uses one set of one
RX_CLK_INn and four RX_DAT_INn data pins. In 10G mode, only RX_CLK_IN0 is used, along with the
RX_DAT_IN[15:0] pins. The timing values for the diagram in Figure 19 are given in Table 13.
Figure 19. Receive Input Data Timing
Table 13. Receive Data Input Timing
It is recommended that the Rx clock be inverted by crossing the LVDS pin pair, that is, connect the
RX_CLK_IN_P[3:0] input signal on the ORLI10G to the N (i.e., complement) clock output from the transmitting
device and connect the RX_CLK_IN_N[3:0] input on the ORLI10G to the P (i.e., true) clock output from the trans-
mitting device. This is because the embedded line interface on the ORLI10G requires the Rx data to be centered
on the Rx clock, and typically the devices that drive the ORLI10G transmit clock and data on the same clock
edge.
Parameter
Symbol
–1
–2
–3
Unit
Min
Max
Min
Max
Min
Max
Clock Frequency
t1
667
790
850
MHz
Data Setup Time Required
t2
300
225
210
pS
Data Hold Time Required
t3
300
225
210
pS
RX_CLK_IN_P[3:0]
RX_DAT_IN_N[15:0]
t1
t3
t2
RX_CLK_IN_N[3:0]
RX_DAT_IN_P[15:0]
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