产品描述
NCS23571 is a clock synthesizer based on PLL. By default, it has 6 LVCMOS outputs buffering the crystal reference clock, 3 differential output pairs providing 100MHz,125MHz, and 156.25MHz and a single-ended LVCMOS output providing 33.33MHz.
The device can synthesize 100MHz, 125MHz, 156.25MHz and 33.33MHz with low phase noise, low power consumption and high PSNR.
The NCS23571 supports VCO frequency up to 2.5GHz. When using the typical 25MHz XTAL input, the device performs low RMS phase jitter <300fs.
产品参数
7 single-ended LVCMOS outputs:
• Q [0:5], QD
• 3 LVPECL output pairs:
• QA, QAn: differential LVPECL output pair, 156.25MHz
• QB, QBn and QC, QCn: frequency selectable differential LVPECL output pairs, 100MHz or 125MHz
• A single-ended LVCMOS output:
• QD: 33.33MHz
• Inputs support external XTAL input or single-ended clock
• Crystal oscillator interface support 25MHz parallel resonant crystal
• A frequency multiplier provides high frequency output with low jitter
• VCO frequency up to 2.5GHz
• RMS phase jitter at 125MHz, using
25MHz crystal input:
~215fs (12kHz ~ 20MHz，typical)
• High PSNR
• Power supply: 3.3V
Core Supply Voltage(V)：3.3V
Output Supply Voltage(V)：3.3V
Output frequency(Min)(MHz)：25
Output frequency(Max)(MHz)：156.25
RMS Jitter(fs)：215
Temperature Range：-40 to 85
Package：40-Lead VFQFN
