ZHCSX44 September 2024 DDS39RF12 , DDS39RFS12
PRODUCTION DATA
- 1
- 1 特性
- 2 應(yīng)用
- 3 說(shuō)明
- 4 器件比較
- 5 引腳配置和功能
- 6 規(guī)格
- 7 詳細(xì)說(shuō)明
- 8 應(yīng)用和實(shí)施
- 9 器件和文檔支持
- 10修訂歷史記錄
- 11機(jī)械、封裝和可訂購(gòu)信息
封裝選項(xiàng)
機(jī)械數(shù)據(jù) (封裝 | 引腳)
散熱焊盤(pán)機(jī)械數(shù)據(jù) (封裝 | 引腳)
訂購(gòu)信息
7.3.7.6 串行器/解串器 PLL 控制
如果更改了各種參數(shù)，串行器/解串器接收器可在較寬的頻率范圍下工作。在設(shè)置 JESD_EN 之前，用戶(hù)必須對(duì)各種參數(shù)進(jìn)行編程，串行器/解串器接收器才能工作。這些參數(shù)經(jīng)過(guò)調(diào)整以保持所有這些限制：
- VCO 時(shí)鐘頻率 (FVCO) 必須介于 1.5625GHz 和 3.2GHz 之間。
- 當(dāng) VCO 時(shí)鐘頻率 (FVCO) 低于 2.17GHz 時(shí)，必須設(shè)置 VRANGE。
- REFDIV、MPY 和 RATE 設(shè)置都與頻率變化相關(guān)。所有頻率變化的乘積必須與所選 JMODE 的 R 值相匹配。
- 優(yōu)先選擇具有較高 PLL 參考時(shí)鐘（和較小 MPY 乘法器）的設(shè)置。
圖 7-52 串行器/解串器時(shí)鐘頻率生成表 7-17 8b/10b 編碼模式的 PLL 配置表
| R 十進(jìn)制（分?jǐn)?shù)） | CLK 范圍 (FCLK) (GHz) | 要編程的寄存器值 | 實(shí)際倍頻器 | 通道比特率 (Gbps) | |||||
|---|---|---|---|---|---|---|---|---|---|
| REFDIV | MPY | RATE | VRANGE | REFDIV | MPY | RATE | |||
| 0.3125 (40/128) | 2.5-5.12 | 0x08 | 0x14 | 0x3 | FCLK<3.472GHz | 1/8 | 5 | 0.5 | 0.78125 – 1.6 |
| 0.3125 (40/128) | 5.0-10.24 | 0x10 | 0x14 | 0x2 | FCLK<6.994GHz | 1/16 | 5 | 1 | 1.5625 – 3.2 |
| 0.3125 (40/128) | 10.0-12.8 | 0x20 | 0x14 | 0x1 | 1 | 1/32 | 5 | 2 | 3.125 – 4.0 |
| 0.4167 (40/96) | 1.88-3.84 | 0x06 | 0x14 | 0x3 | FCLK<2.604GHz | 1/6 | 5 | 0.5 | 0.78125 – 1.6 |
| 0.4167 (40/96) | 3.75-7.68 | 0x0C | 0x14 | 0x2 | FCLK<5.208GHz | 1/12 | 5 | 1 | 1.5625 – 3.2 |
| 0.4167 (40/96) | 7.50-12.8 | 0x18 | 0x14 | 0x1 | FCLK<10.416GHz | 1/24 | 5 | 2 | 3.125 – 5.333 |
| 0.625 (40/64) | 1.25-2.56 | 0x04 | 0x14 | 0x3 | FCLK<1.736GHz | 1/4 | 5 | 0.5 | 0.78125 – 1.6 |
| 0.625 (40/64) | 2.5-5.12 | 0x08 | 0x14 | 0x2 | FCLK<3.472GHz | 1/8 | 5 | 1 | 1.5625 – 3.2 |
| 0.625 (40/64) | 5.00-10.24 | 0x10 | 0x14 | 0x1 | FCLK<6.994GHz | 1/16 | 5 | 2 | 3.125 – 6.4 |
| 0.625 (40/64) | 10.00-12.8 | 0x20 | 0x14 | 0x0 | 1 | 1/32 | 5 | 4 | 6.25 – 8.0 |
| 0.833 (40/48) | 0.94-1.92 | 0x03 | 0x14 | 0x3 | FCLK<1.302GHz | 1/3 | 5 | 0.5 | 0.78125 – 1.6 |
| 0.833 (40/48) | 1.88-3.84 | 0x06 | 0x14 | 0x2 | FCLK<2.604GHz | 1/6 | 5 | 1 | 1.5625 – 3.2 |
| 0.833 (40/48) | 3.75-7.68 | 0x0C | 0x14 | 0x1 | FCLK<5.208GHz | 1/12 | 5 | 2 | 3.125 – 6.4 |
| 0.833 (40/48) | 7.50-12.8 | 0x18 | 0x14 | 0x0 | FCLK<10.416GHz | 1/24 | 5 | 4 | 6.25 – 10.667 |
| 1 (40/40) | 0.781-1.6 | 0x02 | 0x10 | 0x3 | FCLK<1.085GHz | 1/2 | 4 | 0.5 | 0.78125 – 1.6 |
| 1 (40/40) | 1.5625-3.2 | 0x04 | 0x10 | 0x2 | FCLK<2.17GHz | 1/4 | 4 | 1 | 1.5625 – 3.2 |
| 1 (40/40) | 3.125-6.4 | 0x08 | 0x10 | 0x1 | FCLK<4.34GHz | 1/8 | 4 | 2 | 3.125 – 6.4 |
| 1 (40/40) | 6.25-12.8 | 0x10 | 0x10 | 0x0 | FCLK<8.68GHz | 1/16 | 4 | 4 | 6.25 – 12.8 |
| 1.25 (40/32) | 0.625-1.28 | 0x02 | 0x14 | 0x3 | FCLK<0.868GHz | 1/2 | 5 | 0.5 | 0.78125 – 1.6 |
| 1.25 (40/32) | 1.25-2.56 | 0x04 | 0x14 | 0x2 | FCLK<1.736GHz | 1/4 | 5 | 1 | 1.5625 – 3.2 |
| 1.25 (40/32) | 2.5-5.12 | 0x08 | 0x14 | 0x1 | FCLK<3.472GHz | 1/8 | 5 | 2 | 3.125 – 6.4 |
| 1.25 (40/32) | 5.0-10.24 | 0x10 | 0x14 | 0x0 | FCLK<6.994GHz | 1/16 | 5 | 4 | 6.25 – 12.8 |
| 1.667 (40/24) | 0.47-0.96 | 0x03 | 0x28 | 0x3 | FCLK<0.651GHz | 1/3 | 10 | 0.5 | 0.78125 – 1.6 |
| 1.667 (40/24) | 0.94-1.92 | 0x03 | 0x14 | 0x2 | FCLK<1.302GHz | 1/3 | 5 | 1 | 1.5625 – 3.2 |
| 1.667 (40/24) | 1.88-3.84 | 0x06 | 0x14 | 0x1 | FCLK<2.604GHz | 1/6 | 5 | 2 | 3.125 – 6.4 |
| 1.667 (40/24) | 3.75-7.68 | 0x0C | 0x14 | 0x0 | FCLK<5.208GHz | 1/12 | 5 | 4 | 6.25 – 12.8 |
| 2 (40/20) | 0.781-1.6 | 0x02 | 0x10 | 0x2 | FCLK<1.085GHz | 1/2 | 4 | 1 | 1.5625 – 3.2 |
| 2 (40/20) | 1.5625-3.2 | 0x04 | 0x10 | 0x1 | FCLK<2.17GHz | 1/4 | 4 | 2 | 3.125 – 6.4 |
| 2 (40/20) | 3.125-6.4 | 0x08 | 0x10 | 0x0 | FCLK<4.34GHz | 1/8 | 4 | 4 | 6.25 – 12.8 |
| 2.5 (40/16) | 0.625-1.28 | 0x02 | 0x14 | 0x2 | FCLK<0.868GHz | 1/2 | 5 | 1 | 1.5625 – 3.2 |
| 2.5 (40/16) | 1.25-2.56 | 0x04 | 0x14 | 0x1 | FCLK<1.736GHz | 1/4 | 5 | 2 | 3.125 – 6.4 |
| 2.5 (40/16) | 2.5-5.12 | 0x08 | 0x14 | 0x0 | FCLK<3.472GHz | 1/8 | 5 | 4 | 6.25 – 12.8 |
| 3.3333 (40/12) | 0.47 – 0.96 | 0x03 | 0x28 | 0x2 | FCLK<0.651GHz | 1/3 | 10 | 1 | 1.5625 – 3.2 |
| 3.3333 (40/12) | 0.94 – 1.92 | 0x03 | 0x14 | 0x1 | FCLK<1.302GHz | 1/3 | 5 | 2 | 3.125 – 6.4 |
| 3.3333 (40/12) | 1.88 – 3.84 | 0x06 | 0x14 | 0x0 | FCLK<2.604GHz | 1/6 | 5 | 4 | 6.25 – 12.8 |
| 4 (40/10) | 0.781 – 1.6 | 0x02 | 0x10 | 0x1 | FCLK<1.085GHz | 1/2 | 4 | 2 | 3.125 – 6.4 |
| 4 (40/10) | 1.5625 – 3.2 | 0x04 | 0x10 | 0x0 | FCLK<2.17GHz | 1/4 | 4 | 4 | 6.25 – 12.8 |
| 5 (40/8) | 0.625-1.28 | 0x02 | 0x14 | 0x1 | FCLK<0.868GHz | 1/2 | 5 | 2 | 3.125 – 6.4 |
| 5 (40/8) | 1.25-2.56 | 0x04 | 0x14 | 0x0 | FCLK<1.736GHz | 1/4 | 5 | 4 | 6.25 – 12.8 |
表 7-18 64b/66b 編碼模式的 PLL 配置表
| R 十進(jìn)制（分?jǐn)?shù)） | CLK 范圍 (FCLK) (GHz) | 要編程的寄存器值 | 實(shí)際倍頻器 | 通道比特率 (FBIT) (Gbps) | |||||
|---|---|---|---|---|---|---|---|---|---|
| REFDIV | MPY | RATE | VRANGE | REFDIV | MPY | RATE | |||
| 0.515625 (33/64) | 6.06 – 12.41 | 0x20 | 0x21 | 0x1 | FCLK<8.417GHz | 1/32 | 8.25 | 2 | 3.125 – 6.4 |
| 0.6875 (33/48) | 4.55 – 9.31 | 0x18 | 0x21 | 0x1 | FCLK<6.313GHz | 1/24 | 8.25 | 2 | 3.125 – 6.4 |
| 0.6875 (33/48) | 9.09 – 12.8 | 0x30 | 0x21 | 0x0 | FCLK<12.625GHz | 1/48 | 8.25 | 4 | 6.25 – 8.8 |
| 0.825 (33/40) | 3.79 – 7.76 | 0x14 | 0x21 | 0x1 | FCLK<5.261GHz | 1/20 | 8.25 | 2 | 3.125 – 6.4 |
| 0.825 (33/40) | 7.58 – 12.8 | 0x28 | 0x21 | 0x0 | FCLK<10.521GHz | 1/40 | 8.25 | 4 | 6.25 – 10.56 |
| 1.03125 (33/32) | 3.03 – 6.21 | 0x10 | 0x21 | 0x1 | FCLK<4.208GHz | 1/16 | 8.25 | 2 | 3.125 – 6.4 |
| 1.03125 (33/32) | 6.06 – 12.41 | 0x20 | 0x21 | 0x0 | FCLK<8.417GHz | 1/32 | 8.25 | 4 | 6.25 – 12.8 |
| 1.375 (33/24) | 2.27 – 4.65 | 0x0C | 0x21 | 0x1 | FCLK<3.156GHz | 1/12 | 8.25 | 2 | 3.125 – 6.4 |
| 1.375 (33/24) | 4.55 – 9.31 | 0x18 | 0x21 | 0x0 | FCLK<6.313GHz | 1/24 | 8.25 | 4 | 6.25 – 12.8 |
| 1.65 (33/20) | 1.89 – 3.88 | 0x0A | 0x21 | 0x1 | FCLK<2.630GHz | 1/10 | 8.25 | 2 | 3.125 – 6.4 |
| 1.65 (33/20) | 3.79 – 7.76 | 0x14 | 0x21 | 0x0 | FCLK<5.261GHz | 1/20 | 8.25 | 4 | 6.25 – 12.8 |
| 2.0625 (33/16) | 1.52 – 3.10 | 0x08 | 0x21 | 0x1 | FCLK<2.104GHz | 1/8 | 8.25 | 2 | 3.125 – 6.4 |
| 2.0625 (33/16) | 3.03 – 6.21 | 0x10 | 0x21 | 0x0 | FCLK<4.208GHz | 1/16 | 8.25 | 4 | 6.25 – 12.8 |
| 2.75 (33/12) | 1.14 – 2.33 | 0x06 | 0x21 | 0x1 | FCLK<1.578GHz | 1/6 | 8.25 | 2 | 3.125 – 6.4 |
| 2.75 (33/12) | 2.27 – 4.65 | 0x0C | 0x21 | 0x0 | FCLK<3.156GHz | 1/12 | 8.25 | 4 | 6.25 – 12.8 |
| 3.3 (33/10) | 0.95 – 1.94 | 0x05 | 0x21 | 0x1 | FCLK<1.315GHz | 1/5 | 8.25 | 2 | 3.125 – 6.4 |
| 3.3 (33/10) | 1.89 – 3.88 | 0x0A | 0x21 | 0x0 | FCLK<2.630GHz | 1/10 | 8.25 | 4 | 6.25 – 12.8 |
| 4.125 (33/8) | 0.76 – 1.55 | 0x04 | 0x21 | 0x1 | FCLK<1.052GHz | 1/4 | 8.25 | 2 | 3.125 – 6.4 |
| 4.125 (33/8) | 1.52 – 3.10 | 0x08 | 0x21 | 0x0 | FCLK<2.104GHz | 1/8 | 8.25 | 4 | 6.25 – 12.8 |