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| 型号： | M-ORT82G52BM680-DB |
| 厂商： | LATTICE SEMICONDUCTOR CORP |
| 元件分类： | FPGA |
| 英文描述： | FPGA, 1296 CLBS, 333000 GATES, PBGA680 |
| 封装： | PLASTIC, FBGA-680 |
| 文件页数： | 69/94页 |
| 文件大小： | 2104K |
| 代理商： | M-ORT82G52BM680-DB |
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Lattice Semiconductor
ORCA ORT82G5 Data Sheet
71
The same also applies for various VSS pins. At the package ball level in Table , the following names appear instead
Table 31. Power Supply Pin Groupings
Recommended Power Supply Connections
Ideally, a board should have four separate power supplies as described below:
Tx-Rx digital auxiliary supplies.
The Tx-Rx digital and auxiliary power supply nodes should be supplied by a 1.5 V source. A single 1.5 V source
can supply power to Tx-Rx digital and auxiliary nodes.
Tx-Rx analog, guardband supplies.
A dedicated 1.5 V power supply should be provided to the analog power pins. This will allow the end user to min-
imize noise. The guard band pins can also be sourced from the analog power supplies.
Tx output buffers.
The power supplies to the Tx output buffers should be isolated from the rest of the board power supplies. Special
care must be taken to minimize noise when providing board level power to these output buffers. The power sup-
ply can be 1.5 V or 1.8 V depending on the end application.
Rx input buffers.
The power supplies to the Rx input buffers should be isolated from the rest of the board power supplies. Special
care must be taken to minimize noise when providing board level power to these input buffers. The power supply
can be 1.5 V or 1.8 V depending on the end application.
Recommended Power Supply Filtering Scheme
The board connections of the various SERDES VDD and VSS pins are critical to system performance. An example
demonstration board schematic is available at www.latticesemi.com.
Tx-Rx Digital
1.5 V
Tx-Rx Analog 1.5
V (VDDT, VDDR)
Tx Output Buffers
1.5/1.8 V
(VDDOB)
Rx Input Buffers
1.5 V/1.8 V
(VDDIB)
Auxiliary
1.5 V
(VDDAUX)
Guard Band
1.5 V
(VDDGB)
VDD15
VDDRX_AA
VDDOB_AA
VDDIB_AA
VDDAUX_A
VDDGB_A
—
VDDTX_AA
VDDOB_AB
VDDIB_AB
VDDAUX_B
VDDGB_B
—
VDDRX_AA
VDDOB_AC
VDDIB_AC
—
VDDOB_AD
VDDIB_AD
—
VDDOB_BA
VDDIB_BA
—
VDDOB_BB
VDDIB_BB
—
VDDOB_BC
VDDIB_BC
—
VDDOB_BD
VDDIB_BD
—
VDDRX_BA
—
VDDTX_BA
—
VDDRX_BA
—
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