obsidian-notes/超短波/RSA306B.md
CSSC-WORK\murmur 3e6078442b init version
2024-04-15 11:19:57 +08:00

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---
title: RSA306B
updated: 2022-09-02 06:11:52Z
created: 2022-01-08 13:18:07Z
tags:
- saw
- 混频
- 滤波器
- 选型
- 频谱仪
---
# ADC
ADC使用LTC2261采样时钟112MHz采样率112 Ms/s, 14 bits实时模式为112 Ms/s, 16-bit integer real samples
# FPGA
FPGA使用XILINIX的XC6SLX25
# 控制接口
USB3.0接口芯片采用CYUSB3014-BZX
# 参考
参考输入拓扑为ADF4001+ABLJ0-V-112MHz
# 混频
一混频 有源混频器LTC5510+本振MAX2870
二混频 有源混频器AD8343+本振ADF4360-1
高段采用数字VGA ADL5201
低段采用数字VGA AD8370
# 中频
中频140MHz带宽40MHz40 MHz BW, 28 ±0.25 MHz Digital IF选用SAW为TFS-140AU
一中频2440/11902440为WIFI1190为GPS均有可用SAW
二~~中频~~本振2300/1050
# 预选器
预选切换用开关为MASW-007107==丝印09C==此IC低端插损大可补偿放大器低端高增益带来的波动
频率分段(推断):
低段LF<22MHz
高段RF>22MHz
Technical Reference**RSA306B Specifications and Performance Verification.pdf**)里有详细分段及频率调谐表:
![8e37b94b5ee27ee6b5804972aa48843e.png](../../_resources/8e37b94b5ee27ee6b5804972aa48843e.png)
# 其它
## 2021.06
咸鱼有个泡水款RSA306价格4k5略有心动但是风险不低
主要器件无锈蚀但是PCB安装孔与盒体固定柱相连后者腐蚀严重担心过孔附近内层走线存在隐患
从给的图中就发现预放的偏置电感掉件了,反馈后卖家找了一个换上
## 2021.11
已下架,估计是卖掉了
#选型
#频谱仪
#混频
#saw
#滤波器