Table Of Content

Design Guidelines/Training Slides QFE2330/QFE2340 High-band Multimode Power Amplifier with Mode Switches 80-NF232-5 Rev. C Confidential and Proprietary – Qualcomm Technologies, Inc. Restricted Distribution: Not to be distributed to anyone who is not an employee of either Qualcomm or its subsidiaries without the express approval of Qualcomm’s Configuration Management. Confidential and Proprietary – Qualcomm Technologies, Inc. NO PUBLIC DISCLOSURE PERMITTED: Please report postings of this document on public servers or websites to: [email protected]. Restricted Distribution: Not to be distributed to anyone who is not an employee of either Qualcomm or its subsidiaries without the express approval of Qualcomm’s Configuration Management. Not to be used, copied, reproduced, or modified in whole or in part, nor its contents revealed in any manner to others without the express written permission of Qualcomm Technologies, Inc. Qualcomm is a trademark of QUALCOMM Incorporated, registered in the United States and other countries. All QUALCOMM Incorporated trademarks are used with permission. Other product and brand names may be trademarks or registered trademarks of their respective owners. This technical data may be subject to U.S. and international export, re-export, or transfer (“export”) laws. Diversion contrary to U.S. and international law is strictly prohibited. Qualcomm Technologies, Inc. 5775 Morehouse Drive San Diego, CA 92121 U.S.A. © 2013-2014 Qualcomm Technologies, Inc. Confidential and Proprietary – Qualcomm Technologies, Inc. | MAY CONTAIN U.S. AND INTERNATIONAL EXPORT CONTROLLED INFORMATION | 80-NF232-5 Rev. C 2 Revision History (2 of 2) Revision Date Description A April 2013 Initial release B February 2014 Slide 15: Updated PA power management from ET to APT + DPD for IMT-E (2600) bands Slide 18: Updated the keep-out areas figure Slide 20: Updated reference document number from 80-NF232-43 to 80-NA805-43 and added a new reference document 80-NA805-50 Removed QFE PA example application slides Slide 46: Removed ground groupings figure Slide 47 and 48: Added new slides on ground connections Slide 51: Updated figure on ground connections Slide 54: Updated the Gerber file illustration Removed specific design guidelines slides C April 2014 Slide 7: Added legal text Slide 11: Added MSM8906, MSM9x35, and MSM8994 Slide 17: Added the keep-out dimensions figure and added a keep-out area note Slide 18: Updated to include 185 μm of solder ball height Slides 20 and 21: Updated the document titles and added seven reference documents Slides 39 and 40: Updated the matching topologies to reflect MTP Slide 44: Removed the VDD shunt capacitor values in the diagram Slide 45: Added the guidelines for the DC power layout and updated the figure to reflect MTP Slide 46: Updated clear metal in some areas of the IC on layers 1, 2, and 3 Slide 47: Updated the QFE2340 ground groupings Slide 48: Added the power supply routing recommendations for QFE2340 and a reference to the design checklist Slide 50: Updated the ground connections figure to be based on MTP Slide 51: Updated the matching topologies and updated the figure to be based on MTP Slide 52: Updated the schematic figure to reflect the latest MTP Slide 53: Updated the ground connections by grouping figure to be based on MTP Confidential and Proprietary – Qualcomm Technologies, Inc. | MAY CONTAIN U.S. AND INTERNATIONAL EXPORT CONTROLLED INFORMATION | 80-NF232-5 Rev. C 3 Contents 1 Introduction 5 1.1 Qualcomm Front-end (QFE) Overview 6 1.2 QFE2330 and QFE2340 Devices 12 1.3 QFE PA Support 19 2 QFE PA System-level Topics 22 3 QFE PA Implementation Guidelines 32 3.1 General Design Guidelines 33 Confidential and Proprietary – Qualcomm Technologies, Inc. | MAY CONTAIN U.S. AND INTERNATIONAL EXPORT CONTROLLED INFORMATION | 80-NF232-5 Rev. C 4 Section 1 1.1 Qualcomm Front-end (QFE) Overview 6 Introduction 1.2 QFE2330 and QFE2340 Devices 12 1.3 QFE PA Support 19 Confidential and Proprietary – Qualcomm Technologies, Inc. | MAY CONTAIN U.S. AND INTERNATIONAL EXPORT CONTROLLED INFORMATION | 80-NF232-5 Rev. C 5 Section 1.1 Qualcomm Front-end (QFE) Overview Confidential and Proprietary – Qualcomm Technologies, Inc. | MAY CONTAIN U.S. AND INTERNATIONAL EXPORT CONTROLLED INFORMATION | 80-NF232-5 Rev. C 6 QFE Overview The QFE2330 and QFE2340 PA power management ICs are key components within the Qualcomm RF360™ front-end solution. Qualcomm RF360 is a multimode, multiband front-end that includes power amplifier, PA power tracking, antenna switch, and antenna tuner ICs – the first truly global RF solution for LTE products. QFE2330 Supp QFE1100 or QFE2330 or QFE2340 high-band PA 1 /2340 Ckts S&C QFE1101 PA 5 power management IC ANT HB Support S&C Generic RF circuits VBAT er nt configuration shown – & owme not RFIC-specific PA power (vcc) & PA vbat Atrpvaoecwrkaiengrge VcDloDcks PMIC mary panage PRx MB & prim S&C HB LNAs Bypass & GSM SWs Support Power Primary circuits detector cuits ers Envelope ET QFE1520 cirert tracking DAC Tuner Coupler HLBB GGHLBB aTmx pdlrifiiveerrs aseband & upconv Boost S&C B converter QFE WTR 2310/ Supp RFIC QFE110x Modem QFE1520 reconfigurable S&C 2 2320 Ckts IC Z-matching for primary S&C PLRNxA LsB ers & cuits vertd cir Support PDET & onan Diversity circuits ET Rx wncseb GNSS oa QFE1550 LNA Db DRx Tuner LNAs Support S&C circuits QFE1550 reconfigurable 3 Z-matching for diversity 4 QFE2310 or QFE2320 converged Tx front-end Sec. 1.1 Confidential and Proprietary – Qualcomm Technologies, Inc. | MAY CONTAIN U.S. AND INTERNATIONAL EXPORT CONTROLLED INFORMATION | 80-NF232-5 Rev. C 7 Key Components in the PA Subsystem Key PA subsystem components and their QFE2330 Supp QFE110x delivers supply S&C primary functions are shown /2340 ckts current to active PA 6 ANT HB Support S&C circuits VBAT er nt QFE23x0 provides gain, 3 & owme hseigvhe rPaAl s lweviteclhse, sand PA power (vcc) & PA vbat Apvoewraegre clock MIC ary page tracking Pmn VDDs a PRx MB & rim p S&C HB LNAs Bypass & GSM SWs Support Power circuits detector s Primary cuiters Envelope ET QFE1520 cirert tracking DAC HB GHB aTmx pdlrifiiveerrs band pconv Modem Tuner Coupler LB GLB 2 Base& u Boost S&C IC converter QFE QFE15x0 antenna tuner 2310/ Supp WTR QFE110x 5 4 2320 ckts S&C RFIC provides matching; 1520 samples Tx power 1 S&C PLRNxA LsB erters & circuits Tx signals start Support PDET & nvnd in modem IC oa circuits ET Rx nceb Diversity ws GNSS oa Modem IC adjusts Tx gains & QFE1550 LNA Db waveform, controls QFE110x DRx Tuner LNAs Upconversion, gains, etc. in Support S&C circuits RFIC that drives QFE23x0 Sec. 1.1 Confidential and Proprietary – Qualcomm Technologies, Inc. | MAY CONTAIN U.S. AND INTERNATIONAL EXPORT CONTROLLED INFORMATION | 80-NF232-5 Rev. C 8 Supplementing the QFE2310 and QFE2320 Converged Tx Front-ends (Introduction) The power amplifiers within the QFE2310/QFE2320 converged Tx front-end do not cover high bands like B7,  B38, B40, and B41/XGP The QFE2330/QFE2340 MB/HB antenna switch supports those high bands  The QFE2330/QFE2340 PA was created specifically to cover high bands  As shown below, the QFE2330/QFE2340 uses the QFE2310/QFE2320 antenna switch and supplements its  PAs to complete LB/MB/HB transmission requirements QFE Generic RF Supp 2330/2340 ckts shared status and control bus configuration ANT HB HB Rx to RFIC HB Tx from RFIC shared PA power source MB Rx to RFIC MB Tx from RFIC Supp ckts MB/ to/from HB GHB antenna LB GLB LB Tx from RFIC LB Rx to RFIC QFE 2310/2320 Sec. 1.1 Confidential and Proprietary – Qualcomm Technologies, Inc. | MAY CONTAIN U.S. AND INTERNATIONAL EXPORT CONTROLLED INFORMATION | 80-NF232-5 Rev. C 9 Two Converged Tx Front-end Devices and Two High-band PA Devices Converged Tx Front-end CDMA, UMTS, and GSM → use QFE2310 To add LTE, use QFE2320 instead The PAs support low and mid bands only The antenna switch also supports high bands High-band PA Add either the QFE2330 or QFE2340 to support high bands, including TDD B7, B38, B41/XGP → use QFE2330 To add B40, use QFE2340 Sec. 1.1 Confidential and Proprietary – Qualcomm Technologies, Inc. | MAY CONTAIN U.S. AND INTERNATIONAL EXPORT CONTROLLED INFORMATION | 80-NF232-5 Rev. C 10