LG LEO3 Users manual
Updated
File
UE RF Band4 HW Manual
Rev.
Written by
Title
Reviewed by
Granted by
Managed by
Type
LEO3 RF (AWS) Hardware Manual
ABSTRACT 1
This document is a hardware RF board manual for LTE user equipment platform. Contents of 2
this document are the description of each blocks and usage directions. It is recommended to 3
peruse this manual before operating RF Board. 4
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HISTORY 6
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Manual
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Mobile Communication Technology Research Lab.
533 Hogye-dong, Dongan-gu, Anyang-shi,
Kyongki-do, KOREA
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©Copyright, 2009 By LG Electronics Inc. All rights reserved.
No part of this document may be reproduced in any way, or by any means, without
the express written permission of LG Electronics Inc.
LGE Proprietary i MCTR Lab.
Updated
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UE RF Band4 HW Manual
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[Notice] 44
1. The product described in this manual may be modified without prior notice for reliability, 45
functionality or design improvement. 46
2. Information contained in this manual is correct and reliable, but LG shall not be held 47
responsible for damage due to the use of information, product or circuit or infringement of 48
property rights or other rights. 49
3. This manual does not grant users the property rights and other rights of the third party or LG 50
Electronics Inc. 51
4. No part of this manual may be transcribed or duplicated without the written permission of LG 52
Electronics Inc. 53
5. The appearance of the product shown in this manual may slightly differ from that of the actual 54
product. 55
LGE Proprietary ii MCTR Lab.
Updated
File
UE RF Band4 HW Manual
Rev.
CONTENTS 1
1 Introduction................................................................................................................................ １ 2
1.1 Scope ..................................................................................................................................... １ 3
1.2 Terminology............................................................................................................................ １ 4
2 Features and Photograph........................................................................................................... ２ 5
2.1 Features ................................................................................................................................. ２ 6
2.2 Photograph of the LEO3 RF board .......................................................................................... ２ 7
3 Block Diagram and Description.................................................................................................. ４ 8
3.1 Block Diagram ........................................................................................................................ ４ 9
3.2 Block Description .................................................................................................................... ４ 10
3.2.1 RX Blocks .............................................................................................................................. ４ 11
3.2.2 TX Blocks................................................................................................................................ ５ 12
3.2.3 Common Blocks................................................................................................................. ６ 13
4 Interface .................................................................................................................................... ７ 14
4.1 Power supply .......................................................................................................................... ７ 15
4.2 Digital I/Q Data & Sampling Cock ........................................................................................... ８ 16
4.3 SPI ......................................................................................................................................... ８ 17
4.4 Control signals (GPIO’s).......................................................................................................... ９ 18
4.5 LEDs....................................................................................................................................... ９ 19
4.6 Logic probing header .............................................................................................................. ９ 20
5 Placement Map....................................................................................................................... １０ 21
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LGE Proprietary iii MCTR Lab.
Updated
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UE RF Band4 HW Manual
Rev.
1
FIGURES 2
Figure 1: Photograph of LEO3 RF ................................................................................................... ３ 3
Figure 2: RF Block Diagram (For RX/TX) ........................................................................................ ４ 4
Figure 3: Diagrams of Power supply................................................................................................ ７ 5
Figure 4: Diagrams of Data & Clock Signal Interface....................................................................... ８ 6
Figure 5: Diagram of SPI interface .................................................................................................. ９ 7
Figure 6: RX I/Q data probing Interface ........................................................................................ １０ 8
Figure 7: Top placement map of LEO3 RF (AWS) ....................................................................... １０ 9
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TABLES 14
Table 1: List of SPI programmable devices ..................................................................................... ８ 15
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LGE Proprietary iv MCTR Lab.
Updated
File
UE RF Band4 HW Manual
Rev.
1 Introduction 1
2
1.1 Scope 3
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This RF board is intended for radio frequency part of LTE user equipment platform to develop 5
and verify LTE user equipment modem. This RF board is connected to 3rd version of LTE user 6
equipment platform (LEO3) as the form of daughter board. This document intends to describe the 7
brief architecture and usages of the board designed as RF part of LEO3 platform. 8
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1.2 Terminology 11
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ADC Analog to Digital Converter 13
AFC Automatic Frequency Compensation 14
DAC Digital to Analog Converter 15
LO Local Oscillator 16
LTE Long Term Evolution 17
LVDS Low-Voltage Differential Signaling 18
MISO Multi-In Single-Out 19
PA Power Amplifier 20
RF Radio Frequency 21
SAW Surface Acoustic Wave 22
UE User Equipment 23
VGA Variable Gain Amplifier 24
LGE Proprietary
１
MCTR Lab.
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