RF PA Options for 2.3-2.7 GHz LTE Bands Scott Moffit Senior Product Marketing Manager Agenda / Summary slide 1 2.3-2.7GHz RF PA+Switch+Filter Options 2 Size, Cost, & Performance Comparison – Option #1 vs. Option #2 3 Conclusions Page 2 Agenda / Summary slide 1 2.3-2.7GHz RF PA+Switch+Filter Options 2 Size, Cost, & Performance Comparison – Option #1 vs. Option #2 3 Conclusions Page 3 RF Architectures for Multi-Mode, Multi-Band LTE Devices 2010 - 2011 2012 and Beyond Broad bandwidth Power Core (PA + PA PMIC) Page 4 High Performance LTE-capable Antenna Switch Modules Antenna tuning 2.3-2.7GHz – Reference Architecture Using All Discretes Figure 3: Reference Architecture Using All Discretes Page 5 2.3-2.7GHz – Option #1 Figure 4: Option 1 – Multi-Mode Multi-Band LTE PA Which Covers B7/38/40/41 Page 6 2.3-2.7GHz – Option #2 Figure 5: Option 2 – MB TD LTE PA, Which Covers B38/40/41 + a Separate SB FD-LTE PA (B7) Page 7 2.3-2.7GHz – Option #1B T/R T/R T/R Page 8 2.3-2.7GHz – Option #2B PAD SDM Page 9 2.3-2.7GHz – Option #2C PAD SDM T/R T/R T/R Page 10 Agenda / Summary slide 1 2.3-2.7GHz RF PA+Switch+Filter Options 2 Size, Cost, & Performance Comparison – Option #1 vs. Option #2 3 Conclusions Page 11 Size, Cost, & Performance Comparison – Assumptions • BAW duplexer size – 2x2.5 • Modulation • QPSK, 10MHz, 12RB • Filter size – 1.1x0.9 • SPDT – 2x2 • BAW Filter $ > SPDT $ • SP3T or SP4T – 2.5x2.5 • PAE estimates = rough average • Discrete PAs – 3x3 • MMMB PA – 3x4 Best • B7 PA – 3x3 • B7 PAD – 4x3.5 Worst Page 12 Expanded Comparison – Option #1x vs. Option #2x Performance Discrete Option #1 Option #2 Option #1B Option #2B Option #2C Best Worst Page 13 Cost Size Size Comparison – Option #1 vs. Option #2 Page 14 Size Comparison – Integrating the 3 T/R Switches Combine 3 SPDTs into a 2.5x2.5mm module Page 15 Cost Comparison – Option #1 vs. Option #2 Page 16 Performance Comparison – Option #1 vs. Option #2 TD vs. FD B41 Noise Leakage Page 17 Agenda / Summary slide 1 2.3-2.7GHz RF PA+Switch+Filter Options 2 Size, Cost, & Performance Comparison – Option #1 vs. Option #2 3 Conclusions Page 18 Expanded Comparison – Option #1x vs. Option #2x Assumption: Equal Weighting Discrete Option #1 Option #2 Option #1B Option #2B Option #2C Performance Cost Size Total 5 3 4.5 1 4.5 4 1 3 1.5 5 2 4 1 5 3 3 1 1 7 11 9 9 7.5 9 Page 19 Expanded Comparison – Option #1x vs. Option #2x Integrating the 3 T/R switches Assumption: Equal Weighting Discrete Option #1 Option #2 Option #1B Option #2B Option #2C Performance Cost Size Total 5 3 4.5 1 4.5 4 1 3 1.5 5 2 4 1 5 3 4 3 2 7 11 9 10 9.5 10 Page 20 Conclusion Summary • RF suppliers are ready to support TD-LTE • Broadband 2.3-2.7GHz PAs are available to support Option #1 -or- Option #2 Discrete SB PAs B7 B41 B38 B40 • High isolation & Low Insertion Loss switches are MM/MB PAs available today B7/38/ 40/41 • B7 PAs are available today • RF Industry has not fully standardized • Other custom RF PA solutions are being developed Page 21 B7/38/40 B38/40 Thank You Page 22