特性
- 1 LVCMOS/LVTTL output, 15? output impedance
- Crystal oscillator interface designed for 18pF parallel resonant crystals
- Output frequency range: 70MHz - 170MHz
- VCO range: 560MHz - 680MHz
- RMS phase jitter at 155.52MHz (1.875MHz - 20MHz): 0.48ps (typical)
- RMS phase noise at 155.52MHz
Offset Noise Power
100Hz ............... -99.7 dBc/Hz
1KHz ................ -120 dBc/Hz
10KHz ................ -128 dBc/Hz
100KHz ................ -127 dBc/Hz - 3.3V operating supply
- 0°C to 70°C ambient operating temperature
- Lead-Free fully RoHS compliant
- Industrial temperature information available upon request
描述
The 840051 is a Gigabit Ethernet Clock Generator and a member of the family of high performance devices from IDT. The 840051 can synthesize 10 Gigabit Ethernet, SONET, or Serial ATA reference clock frequencies with the appropriate choice of crystal and output divider. The 840051 has excellent phase jitter performance and is packaged in a small 8-pin TSSOP, making it ideal for use in systems with limited board space.