3.3 -V锁相环时钟驱动器 3.3-V PHASE-LOCK LOOP CLOCK DRIVER
The CDC516 is a high-performance, low-skew, low-jitter, phase-lock loop clock driver. It uses a phase-lock loop PLL to precisely align, in both frequency and phase, the feedback output FBOUT to the clock CLK input signal. It is specifically designed for use with synchronous DRAMs. The CDC516 operates at 3.3-V VCC and is designed to drive up to five clock loads per output.
Four banks of four outputs provide 16 low-skew, low-jitter copies of the input clock. Output signal duty cycles are adjusted to 50 percent, independent of the duty cycle at the input clock. Each bank of outputs can be enabled or disabled separately via the 1G, 2G, 3G, and 4G control inputs. When the G inputs are high, the outputs switch in phase and frequency with CLK; when the G inputs are low, the outputs are disabled to the logic-low state.
Unlike many products containing PLLs, the CDC516 does not require external RC networks. The loop filter for the PLL is included on-chip, minimizing component count, board space, and cost.
Because it is based on PLL circuitry, the CDC516 requires a stabilization time to achieve phase lock of the feedback signal to the reference signal. This stabilization time is required following power up and application of a fixed-frequency, fixed-phase signal at CLK, as well as following any changes to the PLL reference or feedback signals. The PLL may be bypassed for test purposes by strapping AVCC to ground.
The CDC516 is characterized for operation from 0°C to 70°C.
频率 125 MHz
电源电压DC 3.30 V
输出接口数 16
供电电流 20.0 µA
电路数 1
耗散功率 850 mW
输出电流驱动 -1.00 mA
工作温度Max 70 ℃
工作温度Min 0 ℃
耗散功率Max 850 mW
电源电压 3V ~ 3.6V
安装方式 Surface Mount
引脚数 48
封装 TSSOP-48
长度 12.5 mm
宽度 6.1 mm
高度 1.15 mm
封装 TSSOP-48
工作温度 0℃ ~ 70℃
产品生命周期 Active
包装方式 Tube
RoHS标准 RoHS Compliant
含铅标准 Lead Free
ECCN代码 EAR99
型号/品牌 | 代替类型 | 替代型号对比 |
---|---|---|
CDC516DGG TI 德州仪器 | 当前型号 | 当前型号 |
CDC516DGGRG4 德州仪器 | 完全替代 | CDC516DGG和CDC516DGGRG4的区别 |
CDC516DGGG4 德州仪器 | 完全替代 | CDC516DGG和CDC516DGGG4的区别 |
CDC516DGGR 德州仪器 | 类似代替 | CDC516DGG和CDC516DGGR的区别 |