概览
描述
The 8430-61 is a general purpose, dual output Crystal-to-3.3V, 2.5V Differential LVPECL High Frequency Synthesizer. The 8430-61 has a selectable TEST_CLK or crystal inputs. The VCO operates at a frequency range of 250MHz to 500MHz. The VCO frequency is programmed in steps equal to the value of the input reference or crystal frequency. The VCO and outputfrequency can be programmed using the serial or parallel interfaces to the configuration logic. Frequency steps as small as 1MHz can be achieved using a 16MHz crystal or TEST_CLK.
特性
- Dual differential 3.3V or 2.5V LVPECL outputs
- Selectable crystal oscillator interface or LVCMOS/LVTTL TEST_CLK
- Output frequency range: 20.83MHz to 500MHz
- Crystal input frequency range: 14MHz to 27MHz
- VCO range: 250MHz to 500MHz
- Parallel or serial interface for programming counter and output dividers
- RMS period jitter: 6ps (maximum)
- Cycle-to-cycle jitter: 30ps (maximum)
- Full 3.3V supply or 3.3V core/2.5V output supply
- 0°C to 70°C ambient operating temperature
- Available in lead-free RoHS compliant package
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应用
设计和开发
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