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  4. > Design Analysis Ericsson W-CDMA/LTE 2100MHz RRUS11 B4 80W 2x2 MIMO Remote Radio Unit

This report covers the design analysis of an Ericsson W-CDMA/LTE 2100MHz RRUS11 B4 80W remote radio unit. This unit is part of the RBS610x/6201/6301/6601 base station platform for Ericsson W-CDMA/LTE. The unit was manufactured in Q2 2012.

Component and semiconductor suppliers mentioned in this report include:
Analog Devices, Broadcom, Coilcraft, Epson-Toyocom, ETAL, Fairchild Semiconductor, Freescale Semiconductor, Infineon Technologies, Integrated Device Technology, Maxim Integrated Products, Micron Technology, NXP Semiconductors, ON Semiconductor, STMicroelectronics, TDK-Epcos, Texas Instruments, & Vishay Semiconductors.

Features:
• Complete Part Number/Marking
• Component Manufacturer Identification
• Function Component Description
• Package Type

Important Note: There is NO component pricing contained within the report.

Table Of Contents

Design Analysis Ericsson W-CDMA/LTE 2100MHz RRUS11 B4 80W 2x2 MIMO Remote Radio Unit
TABLE OF CONTENTS

EXECUTIVE SUMMARY 6

Active/Passive Component Summary 6
Important Note: 6

CHAPTER 1: ERICSSON RBS6000 BTS SYSTEM 7

Overview of RBS6601 Product Offering 7

CHAPTER 2: RRUS 11 MECHANICAL ANALYSIS 11

Mechanical Analysis 11
RRUS 11 TRx Housing 18
RRUS 11 DC and RF Cables 23

CHAPTER 3: RRUS 11 INTERFACE SUBSYSTEM 26

CHAPTER 4: RRUS 11 POWER SURGE PROTECTION DEVICE (SPD) PCB 29

CHAPTER 5: RRUS 11 TRX SUBSYSTEM 31

Digital Processor and TRx PCB 31
Area A: Baseband Signal Processing 35
Area B: Main TRx Power Supply 38
Area C: RRUS Transmitters 42
Area C1 and C2 42
Area C3 44
Area D: RF Power Amplifier Tx Sampling Circuit 50
Area E: RRUS 11 System Timing 53
Area F: Receiver RF Downconversion 55
Areas F1 and F2: RRUS 11 Receiver Low Noise Amplifier 56
Area F3: RRUS 11 Receiver RF/IF Downconverters 60
Area G: Dual Receiver A/D Converters 63
ROR 101 0007 1 R2B (e1) 66
Area H: Secondary Receiver/Analog Cross Connect 71
PA9F34 Frequency Synthesizer Module 74
PA9F41 Frequency Synthesizer Module 76
E-H04AFrequency Synthesizer Module 78
E-E42A Frequency Synthesizer Module 80

CHAPTER 6: RRUS 11 RF AMPLIFIER SUBSYSTEM 82

Area A: Power Amplifier 86
Area B: Power Supply 88
RRUS 11 RF Power Amplifier Shield 95
RRUS 11 RF Power Amplifier Heat Sink 97

CHAPTER 7: RRUS 11 DUPLEXER CAVITY FILTER RF SUBSYSTEM 102

VSWR PCB 110
RRUS 11 Duplexer Filter Waveguide/Resonator Analysis 121

APPENDIX A - PASSIVE COMPONENT MARKET SHARE/CASE SIZE ANALYSIS 125

APPENDIX B - ACTIVE COMPONENT MARKET SHARE ANALYSIS 129



TABLES

Table 1: RRUS 11 Cables/Connectors Bill of Materials 23
Table 2: Interface PCB Top, Bill of Materials 27
Table 3: Interface PCB Bottom, Bill of Materials 28
Table 4: Power SPD PCB Top, Bill of Materials 30
Table 5: Area A Bill of Materials 36
Table 6: Area B Bill of Materials 39
Table 7: Area C1 Bill of Materials 47
Table 8: Area C2 Bill of Materials 48
Table 9: Area C3 Bill of Materials 49
Table 10: Area D Bill of Materials 52
Table 11: Area E1 Bill of Materials 54
Table 12: Area E2 Bill of Materials 54
Table 13: Area F1 Bill of Materials 58
Table 14: Area F2 Bill of Materials 59
Table 15: Area F3 Bill of Materials 62
Table 16: Area G Bill of Materials 65
Table 17: ROR 101 0007 1 R2B (e1) Bill of Materials 70
Table 18: Area H1 Bill of Materials 73
Table 19: Area H2 Bill of Materials 73
Table 20: PA9F34 Module Bill of Materials 75
Table 21: PA9F41 Module Bill of Materials 77
Table 22: E-H04A Module Bill of Materials 79
Table 23: E-E42A Module Bill of Materials 81
Table 24: RRUS 11 RF Power Amplifier Area A Bill of Materials 92
Table 25: RRUS 11 RF Power Amplifier Area B Bill of Materials 93
Table 26: VSWR RFA PCB Bill of Materials 117
Table 27: VSWR RFB PCB Bill of Materials 119
Table 28: Passive Component Case Size Distribution by System Subsection 126
Table 29: Identified Passive Component Supplier Distribution by System Subsection 127
Table 30: Active/Passive Component Distribution by System Subsection 128
Table 31: Active Semiconductor/Component Vendor Distribution by System Subsection 130



EXHIBITS

Exhibit 1: Ericsson RBS6601 Main-Remote BTS System (L), RRUS 11 (R) 8
Exhibit 2: Ericsson RRUS 11 B4 System Block Diagram 8
Exhibit 3: RBS6601 Configurations (Star/Cascade) 9
Exhibit 4: RBS6601 Main Unit with DUL 9
Exhibit 5: RRUS 11 Connection Interfaces 10
Exhibit 6: RRUS 11 with Solar Shield (Front and Back) 11
Exhibit 7: RRUS 11 Front Solar Shield, (External (L) and Internal (R) 12
Exhibit 8: RRUS 11 Back Solar Shield, External (L) and Internal (R) 12
Exhibit 9: RRUS 11 Front View 13
Exhibit 10: RRUS 11 Back View 14
Exhibit 11: RRUS 11 Back View with Duplexer Filter Covers Removed 15
Exhibit 12: Duplexer Filter Cover Views, External (L) and Internal (R) 16
Exhibit 13: Duplexer Filter Cover Side View 17
Exhibit 14: RRUS 11 Housing, TRx (L) and Power Amplifier (R) 17
Exhibit 15: RRUS 11 TRX Housing 18
Exhibit 16: RRUS 11 TRX Housing with RF Duplexer Filters Removed 19
Exhibit 17: RRUS 11 TRX Housing with RF Duplexer Filters, SPD and Interface PCB Removed 20
Exhibit 18: RRUS 11 TRX Housing with RF Transceiver/Shield, RF Duplexer Filters, SPD and Interface PCB
Removed 21
Exhibit 19: TRx RF Shield, External View 22
Exhibit 20: TRx RF Shield, Internal View 22
Exhibit 21: RF Coaxial Cables, RF Power Amplifier/RF Receiver-Duplexer Filter 23
Exhibit 22: RRUS 11 Cables/Connectors Location Diagram, Internal View 24
Exhibit 23: RRUS 11 Cables/Connectors Location Diagram, External View 24
Exhibit 24: RRUS 11 Cables/Connectors System Block Diagram 25
Exhibit 25: Interface PCB Component Diagram. Top 26
Exhibit 26: Interface PCB Component Diagram. Bottom 28
Exhibit 27: Power SPD PCB Component Diagram. Top 29
Exhibit 28: Power SPD PCB Component Diagram. Bottom 29
Exhibit 29: Power SPD PCB Component Diagram. Side 30
Exhibit 30: RRUS 11 TRx PCB, Top View 32
Exhibit 31: RRUS 11 TRx PCB, Bottom View 33
Exhibit 32: RRUS 11 TRx PCB with RF Connectors, Top View 34
Exhibit 33: Area A Component Diagram 35
Exhibit 34: Area B Component Diagram 38
Exhibit 35: Area B Component Diagram (con't) 38
Exhibit 36: Area C Diagram 42
Exhibit 37: Area C1 Component Diagram 43
Exhibit 38: Area C2 Component Diagram 43
Exhibit 39: Area C1, C2, and C3 Block Diagram 44
Exhibit 40: Area C3 Component Diagram 45
Exhibit 41: Area C3 MCX Connector Block Diagram 45
Exhibit 42: RF 3dB Coupler Component 46
Exhibit 43: RF Power Divider Component 46
Exhibit 44: Area D Component Diagram 50
Exhibit 45: Area D Block Diagram 51
Exhibit 46: Area E1 Component Diagram 53
Exhibit 47: Area E2 Component Diagram 53
Exhibit 48: Area F Diagram 55
Exhibit 49: Areas F and G Signal Diagram 55
Exhibit 50: Area F1 Component Diagram 56
Exhibit 51: Area F2 Component Diagram 56
Exhibit 52: Area F1 RXB Path Block Diagram 57
Exhibit 53: Area F2 RXA Path Block Diagram 57
Exhibit 54: Area F3 Component Diagram 60
Exhibit 55: Area F3 Block Diagram 61
Exhibit 56: Area G Component Diagram 63
Exhibit 57: Area G Block Diagram 64
Exhibit 58: ROR 101 0007 1 R2B (e1) Component Diagram 67
Exhibit 59: ROR 101 0007 1 R2B (e1) Block Diagram 67
Exhibit 60: ADL5562 Die Photo 68
Exhibit 61: ADS5493 Part Number Identification Die Photo 68
Exhibit 62: ADS5493 Die Photo 69
Exhibit 63: Area H1 Component Diagram 71
Exhibit 64: Area H2 Component Diagram 72
Exhibit 65: PA9F34 Module Component Diagram 74
Exhibit 66: PA9F41 Module Component Diagram 76
Exhibit 67: E-H04A Module Component Diagram 78
Exhibit 68: E-E42A Module Component Diagram 80
Exhibit 69: RRUS 11 RF Power Amplifier Housing 82
Exhibit 70: RRUS 11 RF Power Amplifier Housing DC/RF Connections 83
Exhibit 71: RRUS 11 RF Power Amplifier PCB 84
Exhibit 72: RRUS 11 RF Power Amplifier RF Connectors 85
Exhibit 73: RRUS 11 RF Power Amplifier Area A Component Diagram 86
Exhibit 74: RRUS 11 RF Power Amplifier TXA Path Block Diagram 87
Exhibit 75: RRUS 11 RF Power Amplifier TXB Path Block Diagram 88
Exhibit 76: RRUS 11 RF Power Amplifier Area B Component Diagram 89
Exhibit 77: RRUS 11 RF Power Amplifier Construction, Exploded Side View 90
Exhibit 78: RRUS 11 RF Power Amplifier Baseplate (x2) 90
Exhibit 79: RRUS 11 RF Power Amplifier PCB, Bottom View 91
Exhibit 80: RRUS 11 RF Power Amplifier Shield, External View 95
Exhibit 81: RRUS 11 RF Power Amplifier Shield, Internal View 96
Exhibit 82: RRUS 11 RF Power Amplifier Heat Sink 97
Exhibit 83: RRUS 11 RF Power Amplifier Heat Sink, Side View 98
Exhibit 84: RRUS 11 RF Power Amplifier Heat Sink, Bottom View 98
Exhibit 85: RRUS 11 RF Power Amplifier Heat Sink, Front View 99
Exhibit 86: RRUS 11 RF Power Amplifier Secondary Heat Sink 100
Exhibit 87: RRUS 11 RF Power Amplifier Secondary Heat Sink Outline 101
Exhibit 88: RRUS 11 Duplexer Filter RFA, Top View 102
Exhibit 89: RRUS 11 Duplexer Filter RFB, Top View 103
Exhibit 90: RRUS 11 Duplexer Filter RFA, Bottom View 103
Exhibit 91: RRUS 11 Duplexer Filter RFB, Bottom View 104
Exhibit 92: RRUS 11 Duplexer Filter, Front View 104
Exhibit 93: RRUS 11 Duplexer Filter, Rear View 105
Exhibit 94: RRUS 11 Duplexer Filter RF Shield, Top View 106
Exhibit 95: RRUS 11 Duplexer VSWR Shield 107
Exhibit 96: RRUS 11 Duplexer Cable Shield Location 107
Exhibit 97: RRUS 11 Duplexer Cable Shield, Top and Bottom Views 108
Exhibit 98: RRUS 11 Duplexer Filter Resonator Locations 109
Exhibit 99: RRUS 11 Duplexer Filter Tx/Rx Paths 109
Exhibit 100: VSWR PCB Component Diagram 110
Exhibit 101: RRUS 11 Duplexer Filter 7/16 DIN Connector Gasket/Washer/Nut 111
Exhibit 102: Metal Divider 111
Exhibit 103: VSWR PCB, Top View 112
Exhibit 104: VSWR PCB, Bottom View 112
Exhibit 105: AD8342 Part Number/Logo Identification Die Photo 113
Exhibit 106: AD8342 Die Photograph 113
Exhibit 107: AD8338 Logo Identification Die Photo 114
Exhibit 108: AD8338 Part Number Identification Die Photo 114
Exhibit 109: AD8338 Die Photo 115
Exhibit 110: VSWR Monitoring Circuit, RFA 116
Exhibit 111: VSWR Monitoring Circuit, RFB 116
Exhibit 112: RRUS11 Duplexer Filter Resonator Types 121
Exhibit 113: RRUS11 Duplexer Filter Resonator Type Locations 121
Exhibit 114: RRUS11 Duplexer Filter Resonator Stem Types 122
Exhibit 115: Duplexer Filter Path with Waveguide Coupler A 122
Exhibit 116: Duplexer Tx Filter Path with Waveguide Coupler A 123
Exhibit 117: Waveguide Coupler, Side View 123
Exhibit 118: Passive Component Case Size Distribution 125
Exhibit 119: Identified Passive Component Market Share by Vendor 128
Exhibit 120: Active Semiconductor Component Share 129
Exhibit 121: High Pin Count IC vs. Discretes 132
Exhibit 122: Active Semiconductor Market Share by Vendor 133
Exhibit 123: High Pin Count (64+) Active Semiconductor Market Share by Vendor 134

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