RENESAS 8T49N004A-039NLGI8

The IDT8T49N004I is a four output Clock Generator with selectable LVDS or LVPECL outputs. The IDT8T49N004I can generate any one of four frequencies from a single crystal or reference clock. The four frequencies are selected from the Frequency Selection Table (Table 3A) and are programmed via I²C interface. The four predefined frequencies are selected in the user application by two frequency selection pins. Note the desired programmed frequencies must be used with the corresponding crystal or clock frequency as indicated in Table 3A. Excellent phase noise performance is maintained with IDT’s Fourth Generation FemtoClock NG PLL technology, which delivers sub-400fs RMS phase jitter.

• Fourth Generation FemtoClock NG PLL technology
• Four selectable LVPECL or LVDS outputs via I2C
• CLK, nCLK input pair can accept the following differential input levels: LVPECL, LVDS, HCSL
• FemtoClock NG VCO Range: 1.91GHz - 2.5GHz
• RMS phase jitter at 156.25MHz (12kHz - 20MHz): 228fs (typical)
• RMS phase jitter at 156.25MHz (10kHz - 1MHz): 175fs (typical)
• Full 2.5V or 3.3V power supply
• I²C programming interface
• PCI Express (2.5Gb/s), Gen 2 (5Gb/s), and Gen 3 (8Gb/s) jitter compliant
• -40°C to 85°C ambient operating temperature
• Lead-free (RoHS 6) packaging