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和芯星通科技(北京)有限公司 

  

Unicore Communications, Inc.

 

 

北京市海淀区丰贤东路 7 号北斗星通大厦三层

 

F3, No.7, Fengxian East Road, Haidian, Beijing, P.R.China,

 

100094 

 

www.unicorecomm.com

 

 

Phone: 86-10-69939800 

 

Fax: 86-10-69939888 

 

[email protected] 

 

 

www.unicorecomm.com

 

Содержание UM620 Series

Страница 1: ...DWARE REFERENCE DESIGN WWW UNICORECOMM COM Copyright 2009 2023 Unicore Communications Inc Data subject to change without notice UM620 Series Automotive Grade Dual frequency Multi GNSS Positioning Modu...

Страница 2: ...e mark of Unicore products or their product serial referred to in this manual collectively Unicore Trademarks This manual or any part of it shall not be deemed as either expressly implied by estoppel...

Страница 3: ...UM620 Series Hardware Reference Design ii our local authorized distributor for the most up to date version of this manual along with any addenda or corrigenda...

Страница 4: ...I Contents 1 Reference Circuit Using an Active Antenna 1 2 Reference Circuit Using a Passive Antenna 2 3 Power Supply Requirements 3 4 Recommended BOM 4...

Страница 5: ...he antenna power supply and the module s main supply VCC use the same power rail the ESD surge and overvoltage from the antenna will have an effect on VCC which may cause damage to the module Therefor...

Страница 6: ...en the antenna and the RF_IN of the module in order to ensure the performance of the system For the RF routing antenna LNA RF_IN note the 50 impedance matching The supply voltage for VBCKP is 1 7 V 3...

Страница 7: ...than 500 ms Backup Supply V_BCKP If the hot start function is needed users should supply backup power to the module The voltage range of V_BCKP is 1 7 V 3 6 V Notes The V_BCKP initial level when power...

Страница 8: ...4 4 Recommended BOM Component Order No Manufacturer U1 RS 232 Transceivers TRS3122ERGER TI U2 LNA MXDLN14TP MAXSCEND...

Страница 9: ...Unicore Communications Inc 7 F3 No 7 Fengxian East Road Haidian Beijing P R China 100094 www unicorecomm com Phone 86 10 69939800 Fax 86 10 69939888 info unicorecomm com www unicorecomm com...

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