84321中文资料LVPECL Frequency Synthesizer数据手册Renesas规格书

描述 Description

The 84021 is a general purpose, Crystal-to-LVCMOS/LVTTL High Frequency Synthesizer. The 84021 has a selectable TEST_CLK or crystal input. The VCO operates at a frequency range of 620MHz to 780MHz. The VCO frequency is programmed in steps equal to the value of the input reference or crystal frequency. The VCO and output frequency can be programmed using the serial or parallel interface to the configuration logic.

特性 Features

Dual differential 3.3V LVPECL outputs
Selectable crystal oscillator interface
or LVCMOS/LVTTL TEST_CLK
Output frequency range: 103.3MHz to 260MHz
Crystal input frequency range: 14MHz to 40MHz
VCO range: 620MHz to 780MHz
Parallel or serial interface for programming counter and output dividers
RMS period jitter: 3ps (typical)
RMS phase jitter at 155.52MHz, using a 38.88MHz crystal (12kHz to 20MHz): 2.5ps (typical)
Phase noise: 155.52MHz
Offset Noise Power
100Hz -84.1 dBc/Hz
1kHz -109.8 dBc/Hz
10kHz -126.3 dBc/Hz
100kHz -128.7 dBc/Hz
3.3V supply voltage
0°C to 70°C ambient operating temperature
Lead-Free package RoHS compliant