Table Of ContentQFE3320 Low/Mid Band Tx Front-End
Device Revision Guide
80-NJ121-4 Rev. B
October 17, 2014
Submit technical questions at:
https://support.cdmatech.com
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.
© 2014 Qualcomm Technologies, Inc.
Revision history
Revision Date Description
A February 2014 Initial release
B October 2014 Table2 QFE3320 device marking line definitions: Updated
descriptions in line 4
Updated Table3 QFE3320-0 device identification details: Information
for QFE3320-0 only included. Added date-code column, band
support, and mode support
Added Table4 QFE3320-0 device identification details
Added Section2.3.2 Commercial samples (CS)
Updated Table6 QFE3320 ET Known issues – all sample types and
revisions: Added QFE3320 ES1, QFE3320 CS1, and QFE3320-1 ES
columns. Added information on QFE3320 APT + DPD
Added Section3.2.2 APT + DPD only issues
80-NJ121-4 Rev. B MAY CONTAIN U.S. AND INTERNATIONAL EXPORT CONTROLLED INFORMATION 2
Confidential and Proprietary – Qualcomm Technologies, Inc.
QFE3320 Low/Mid Band Tx Front-End Device Revision Guide
1 Introduction
Technical information for the QFE3320 device is primarily covered by the documents listed in
Table1. Released QFE3320 documents are posted on the CDMATech Support website
(https://support.cdmatech.com) and are available for download.
There are two versions of QFE3320: QFE3320-0 and QFE3320-1.
QFE3320-0
Has pin 89 as ground
Can only support ET in high power mode (HPM)
QFE3320-1
Does not have pin 89
Can support both ET and APT + DPD in HPM
Refer to Section2 for part-marking/device identification.
Table1 Primary QFE3320 documents
Document
Document title
number
80-NJ121-1 QFE3320 Low/Mid Band Tx Front-End Device Specification (Advance Information)
80-NJ121-4 QFE3320 Low/Mid Band Tx Front-End Device Revision Guide
(this document)
1.1 Scope and intended audience
This device revision guide identifies issues with all QFE3320 samples released to date. The
following information is included:
Introduction to this document and its topic (Chapter1)
Device identification (Chapter2)
Device marking
Identification details for each sample type
Sample testing – engineering sample (ES) explanations
Identification of compatible software releases
Known issues (Chapter3)
Issue description
Impact to system performance
Possible workarounds (what designers should do to minimize the issue’s impact)
This device revision guide is intended for new product developers who are designing, testing,
and/or evaluating phones or terminals that include the QFE3320 device.
80-NJ121-4 Rev. B MAY CONTAIN U.S. AND INTERNATIONAL EXPORT CONTROLLED INFORMATION 3
Confidential and Proprietary – Qualcomm Technologies, Inc.
QFE3320 Low/Mid Band Tx Front-End Device Revision Guide
2 Device Identification
The QFE3320 device can be identified by markings on its top surface, as described in Section2.1.
Further details about each sample type are presented in Section2.2 through Section2.4.
2.1 Device marking – general format
QFE3320 Line1
PBB Line2
XXXXXXXX Line3
FAYWWRR Line4
XX Line5
Ball1identifier
Figure1 QFE3320 device marking (top view, not to scale)
Table2 QFE3320 device marking line definitions
Line Marking Description
1 QFE3320 Qualcomm® product name
2 PBB P = product configuration code (see Table3)
BB = feature code (see Table3)
3 XXXXXXXX XXXXXXXX = traceability number
4 FAYWWRR F = wafer fab location source code
F = A for TSMC
A = assembly (drop ball) site code
B = ASE, K = SPIL, U = ATC
Y = single-digit year code
WW = work week (based on calendar year)
RR = product revision (see Table3)
5 • XX • = dot identifying pin 1
XX = traceability information
Additional lines may appear on the part marking for some samples; this is manufacturing information that is
only relevant to QTI and QTI suppliers.
80-NJ121-4 Rev. B MAY CONTAIN U.S. AND INTERNATIONAL EXPORT CONTROLLED INFORMATION 4
Confidential and Proprietary – Qualcomm Technologies, Inc.
QFE3320 Low/Mid Band Tx Front-End Device Revision Guide
2.2 Device identification for each sample type
This section provides details for identifying each sample type.
Table3 QFE3320-0 device identification details (ET)
Product
Product Feature Date-code
QFE variation Sample type configuration Hardware ID S code Band support Mode support
revision (RR) code (BB) (YWW)
code (P)
QFE3320 ES 0 01 0x40 0 VV All ET (HPM)
QFE3320 ES1 0 04 0x80 0 VV All ET (HPM)
QFE3320 CS1 0 04 0x80 0 VV 1434 GSM: GSM850, GSM900, ET (HPM)
GSM1800, GSM1900
WCDMA: B1, B3, B5, B8
LTE: B1, B3, B8, B25, B26
Table4 QFE3320-1 device identification details (ET, APT + DPD)
Product
Product Feature Date-code
QFE variation Sample type configuration Hardware ID S code Band support Mode support
revision (RR) code (BB) (YWW)
code (P)
QFE3320-1 ES2 1 04 0x80 0 VV All POR bands ET (HPM)
APT + DPD
(HPM)
80-NJ121-4 Rev. B MAY CONTAIN U.S. AND INTERNATIONAL EXPORT CONTROLLED INFORMATION 5
Confidential and Proprietary – Qualcomm Technologies, Inc.
QFE3320 Low/Mid Band Tx Front-End Device Revision Guide
2.3 Sample testing
2.3.1 Engineering samples (ES)
These devices have undergone limited testing, and sometimes have significant feature limitations.
They are suitable to assist with PCB development, to conduct board-level electrical evaluation
tests, and to explore manufacturing considerations. Engineering samples should not be used for
phone-level qualification.
2.3.2 Commercial samples (CS)
These devices have undergone full production-level testing and meet the specifications and
features described in the device specification, except as otherwise noted in this document. They
have passed device-level qualification. Commercial samples are suitable to be used for
performance testing as well as phone-level production and qualification.
2.4 Compatible software releases
Each sample type is for use with a particular AMSS software prerelease version (or later). They
are not expected to be compatible with AMSS software releases that occurred earlier than that
particular version. Table5 identifies the software compatibility of each sample type. The software
release documented in this table is the minimum version; not all issues are resolved in the
minimum software release.
Table5 Software compatibility for each sample type 1
QFE3320 variant Compatible software Comments
QFE3320 ES
Information for other sample types will be added as they are released.
1. Refer to the corresponding software release notes for more details.
80-NJ121-4 Rev. B MAY CONTAIN U.S. AND INTERNATIONAL EXPORT CONTROLLED INFORMATION 6
Confidential and Proprietary – Qualcomm Technologies, Inc.
QFE3320 Low/Mid Band Tx Front-End Device Revision Guide
3 Known Issues
3.1 Summary of known issues
All known issues for each revision of the QFE3320 device are summarized in Table6. The text
within the Issue column provides links to the sections of this document that explain the issues,
regardless of the sample type (or types) on which they occur. An X in the other columns indicates
that the issue occurs on one or more sample types.
Table6 QFE3320 ET Known issues – all sample types and revisions
QFE3320-0 QFE3320-0 QFE3320-0 QFE3320-1
# Issue
ES ES1 CS1 ES2
QFE3320 ET mode
1 Device-level reliability characterization is not X X X
complete
2 Device-level RF performance characterization is not X X X
complete
3 System-level RF performance characterization is not X X X X
complete
QFE3320 APT + DPD mode
1 Device-level reliability characterization is not X X X X
complete
2 Device-level RF performance characterization is not X X X X
complete
3 System-level RF performance characterization is not X X X X
complete
4 Mid-band UMTS/LTE PA can experience spurious X X X –
specification violations
5 Mid-band UMTS/LTE PA has lower gain in APT + X X X –
DPD mode
80-NJ121-4 Rev. B MAY CONTAIN U.S. AND INTERNATIONAL EXPORT CONTROLLED INFORMATION 7
Confidential and Proprietary – Qualcomm Technologies, Inc.
QFE3320 Low/Mid Band Tx Front-End Device Revision Guide
3.2 Issues – description, impact, and workaround
3.2.1 ET and APT + DPD issues
Issue1 Device-level reliability characterization is not complete
Description Device-level reliability characterization is in progress.
Impact The QFE3320 ES devices are not guaranteed to pass reliability specifications defined in the
QFE3320 Low/Mid Band Tx Front-End Device Specification (Advance Information)
(80-NJ121-1).
Workaround Customers should not conduct device reliability tests with the ES devices. QTI will guarantee
reliability specifications with CS devices.
Return to Table6
Issue2 Device-level RF performance characterization is not complete
Description Device-level RF performance characterization is in progress.
Impact The QFE3320 ES devices are not guaranteed to pass all RF specifications defined in the
QFE3320 Low/Mid Band Tx Front-End Device Specification (Advance Information)
(80-NJ121-1).
Workaround QTI will guarantee device-level RF performance specifications with CS devices.
Return to Table6
Issue3 System-level RF performance characterization is not complete
Description System-level RF performance characterization is in progress. System-level envelope tracking
(ET) performance has not been verified.
Impact There are potential 3GPP/3GPP2 failures in phone-level testing with ES devices.
Workaround QTI will guarantee system-level RF performance with CS devices and CS software.
Return to Table6
3.2.2 APT + DPD only issues
Issue4 Mid-band UMTS/LTE PA can experience spurious specification violations
Description When operating QFE3320-0 in APT + DPD mode, mid-band UMTS/LTE PA can experience
spurious emission specification violations.
Impact There are potential 3GPP/3GPP2 failures in phone-level testing.
Workaround Customer must use QFE3320-1 since QFE3320-1 can support APT+DPD in HPM.
Return to Table6
80-NJ121-4 Rev. B MAY CONTAIN U.S. AND INTERNATIONAL EXPORT CONTROLLED INFORMATION 8
Confidential and Proprietary – Qualcomm Technologies, Inc.
QFE3320 Low/Mid Band Tx Front-End Device Revision Guide
Issue5 Mid-band UMTS/LTE PA has lower gain in APT + DPD mode
Description When operating QFE3320-0 in APT + DPD mode, mid-band UMTS/LTE PA has lower gain.
Impact There are potential low Tx power failures in phone-level testing with ES devices.
Workaround QFE3320-1 will fix the low gain issue.
Return to Table6
80-NJ121-4 Rev. B MAY CONTAIN U.S. AND INTERNATIONAL EXPORT CONTROLLED INFORMATION 9
Confidential and Proprietary – Qualcomm Technologies, Inc.
