obsidian-notes/射频/时钟参考/100-1000转换.md
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---
title: 100-1000转换
updated: 2022-05-12 02:49:50Z
created: 2022-01-08 13:17:42Z
tags:
- 选型
---
![a16e4759379c99b18cb0ebe4d6ed4105.png](../../../_resources/a16e4759379c99b18cb0ebe4d6ed4105.png)
# 参考来源
Signal Hound某款1GHz信号源产品1GHz处-138dBc/Hz@1kHz-147dBc/Hz@10kHz反推100MHz参考为-158dBc/Hz@1kHz-167dBc/Hz@1kHz比CVSS-945的1kHz好
# 倍频方案
采用先2倍频再5倍频的方式
- 2倍频的谐波都比较低
- 5倍频的偶次谐波比较低奇次谐波比较高
1GHz的SAW有TA1483A和
SAWFD1G20AA0F0A GPS双工器1.2GHz和1.6GHz
# 直接提取
CVHD-950等输出为方波含有丰富频率分量到9GHz仍有-90dBm的谐波分量
经实测1GHz信号幅度为-35dBc相对100MHz主信号
# 滤波方案
先低通+高通组成带通高通为可选HNCN-880+LFCN-1000+在较宽频段内有良好的抑制效果
再SAW滤除近端谐波
低通中国产俊英科技有产品在宽带内表现良好WGLL-01800类LFCN-1000+WGLL-01800
#选型