Samsung Electronics WCA734M Wi-Fi/BT Transceiver User Manual
- June 5, 2024
- Samsung Electronics
Table of Contents
Samsung Electronics WCA734M Wi-Fi/BT Transceiver
Introduction
WCA734M is a Wi-Fi / Bluetooth Combo module compliant with IEEE802.11
a.b.g.n.ac MAC/baseband/radio and Bluetooth 5.0 optimized for low-power
applications.
The core chipset is from MediaTek part number MT7668AUN.
Hardware Architecture
Main Chipset Information
| Item | Vendor | Part Number |
|---|---|---|
| IEEE802.11 a.b.g.n.ac mac/baseband/radio Bluetooth 5.0 | **** |
MediaTek
| ****
MT7668AUN
Product Details
Data Modulation
- DSSS: CCK,BPSK,QPSK for 802.11b
- OFDM: BPSK,QPSK,16QAM,64QAM,256QAM for 802.11a,g,n,ac
- FHSS: GFSK, OQPSK, 8DPSK, π/4DPSK for Bluetooth
Frequency Range
- 2400-2497MHz
- 5150-5350MHz
- 5470-5725MHz
- 5725-5825MHz
IEEE 802.11n HT20
IEEE 802.11n HT40
IEEE 802.11ac
Output Power tolerance
Output power ± 1.0dBm
Simultaneous transmission
| BT| BT LE| 2.4GHz Wi-Fi| 5GHz Wi-Fi
---|---|---|---|---
BT| | O| O| O
BT LE| O| | O| O
2.4GHz Wi-Fi| O| O| | X
5GHz Wi-Fi| O| O| X|
Recommended Operating conditions
| Min| Typ.| Max| Unit
---|---|---|---|---
Operating voltage| 4.5| 5| 5.5| V
Operating temperature(ambient)| -20| 25| 50| °C
AS Information
- Company Name: CHENGDU XUGUANG TECHNOLOGY CO., LTD.
- Fax: +86-28-84841628
- Tel: +86-28-84841628
- Add: 2 sections of park road Longquanyi Chengdu China
Certification Information
- Name(Model name):
- Certification ID:
- Company Name:
- Production date
- Vendor:
FCC MODULAR APPROVAL INFORMATION EXAMPLES for Manual
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:
- This device may not cause harmful interference.
- This device must accept any interference received, including interference that may cause undesired operation.
CAUTION: Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment.
NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:
- Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and receiver.
- Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
- Consult the dealer or an experienced radio/TV technician for help.
FCC Radiation Exposure Statement
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with a minimum distance of 20cm between the radiator & your body.
OEM INTEGRATION INSTRUCTIONS
This device is intended only for OEM integrators under the following conditions:
The module must be installed in the host equipment such that 20 cm is maintained between the antenna and users, and the transmitter module may not be co-located with any other transmitter or antenna. The module shall be only used with the internal onboard antenna that has been originally tested and certified with this module. External antennas are not supported. As long as these 3 conditions above are met, further transmitter tests will not be required. However, the OEM integrator is still responsible for testing their end-product for any additional compliance requirements required with this module installed (for example, digital device emissions, PC peripheral requirements, etc.). The end-product may need Verification testing, Declaration of Conformity testing, a Permissive Class II Change, or new Certification. Please involve an FCC certification specialist in order to determine what will be exactly applicable for the end product.
Validity of using the module certification
In the event that these conditions cannot be met (for example certain laptop configurations or co-location with another transmitter), then the FCC authorization for this module in combination with the host equipment is no longer considered valid and the FCC ID of the module cannot be used on the final product. In these circumstances, the OEM integrator will be responsible for re-evaluating the end product (including the transmitter) and obtaining a separate FCC authorization. In such cases, please involve an FCC certification specialist in order to determine if a Permissive Class II Change or new Certification is required.
Upgrade Firmware
The software provided for firmware upgrade will not be capable to affect any RF parameters as certified by the FCC for this module, in order to prevent compliance issues.
End product labeling
This transmitter module is authorized only for use in devices where the antenna may be installed such that 20 cm may be maintained between the antenna and users. The final end product must be labeled in a visible area with the following: “Contains FCC ID: A3LWCA731M”.
Information that must be placed in the end-user manual
The OEM integrator has to be aware not to provide information to the end-user regarding how to install or remove this RF module in the user’s manual of the end product which integrates this module. The end-user manual shall include all required regulatory information/warning as shown in this manual.
FCC MODULAR APPROVAL INFORMATION EXAMPLES for Manual
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:
- This device may not cause harmful interference.
- This device must accept any interference received, including interference that may cause undesired operation.
CAUTION: Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment.
NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:
- Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and receiver.
- Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
- Consult the dealer or an experienced radio/TV technician for help.
WARNING: Changes or modifications not expressly approved by the manufacturer could void the user’s authority to operate the equipment.
CAUTION: Exposure to Radio Frequency Radiation.
The antenna shall be mounted in such a manner to minimize the potential for human contact during normal operation. The antenna should not be contacted during operation to avoid the possibility of exceeding the FCC radio frequency exposure limit.
IC Information
This device complies with Industry Canada license-exempt RSS standard(s). Operation is subject to the following two conditions:
- this device may not cause interference.
- this device must accept any interference, including interference that may cause undesired operation of the device.
The end product must be labeled to display the Industry Canada certification number of the module. Contains transmitter module IC: 649E-WCA731M This device is going to be operated in 5 150 MHz ~ 5 250 MHz frequency range, it is restricted in indoor environment only.
Information for OEM Integrator
This device is intended only for OEM integrators under the following conditions:
- The antenna must be installed such that 20 cm is maintained between the antenna and users, and
- The transmitter module may not be co-located with any other transmitter or antenna.
End product labeling
The label for the end product must include:
-
* “Contains FCC ID: A3LWCA731M, Contains IC: 649E-WCA731M”.
CAUTION: Exposure to Radio Frequency Radiation.
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with a minimum distance of 20cm between the radiator and your body. This transmitter module is authorized only for use in devices where the antenna may be installed such that 20 cm may be maintained between the antenna and users.”
List of applicable FCC rules
List the FCC rules that are applicable to the modular transmitter. These are
the rules that specifically establish the bands of operation, the power,
spurious emissions, and operating fundamental frequencies. DO NOT list
compliance to unintentional-radiator rules (Part 15 Subpart B) since that is
not a condition of a module grant that is extended to a host manufacturer. See
also Section 2.10 below concerning the need to notify host manufacturers that
further testing is required.3
Explanation: This module meets the requirements of FCC part 15C(15.247).
part 15E(15.407)
Summarize the specific operational use conditions
Describe use conditions that are applicable to the modular transmitter,
including for example any limits on antennas, etc. For example, if point-to-
point antennas are used that require reduction in power or compensation for
cable loss, then this information must be in the instructions. If the use
condition limitations extend to professional users, then instructions must
state that this information also extends to the host manufacturer’s
instruction manual. In addition, certain information may also be needed, such
as peak gain per frequency band and minimum gain, specifically for master
devices in 5 GHz DFS bands.
Explanation: The EUT has a Chip Antenna, and the antenna uses a
permanently attached antenna that is not replaceable.
Limited module procedures
If a modular transmitter is approved as a “limited module,” then the module
manufacturer is responsible for approving the host environment in that the
limited module is used. The manufacturer of a limited module must describe,
both in the filing and in the installation instructions, the alternative means
that the limited module manufacturer uses to verify that the host meets the
necessary requirements to satisfy the module limiting conditions. A limited
module manufacturer has the flexibility to define its alternative method to
address the conditions that limit the initial approval, such as: shielding,
minimum signaling amplitude, buffered modulation/data inputs, or power supply
regulation. The alternative method could include that the limited module
manufacturer reviews detailed test data or host designs prior to giving the
host manufacturer approval. This limited module procedure is also applicable
for RF exposure evaluation when it is necessary to demonstrate compliance in a
specific host. The module manufacturer must state how control of the product
into which the modular transmitter will be installed will be maintained such
that full compliance of the product is always ensured. For additional hosts
other than the specific host originally granted with a limited module, a Class
II permissive change is required on the module grant to register the
additional host as a specific host also approved with the module.
Explanation: The module is not a limited module.
Trace antenna designs
For a modular transmitter with trace antenna designs, see the guidance in Question 11 of KDB Publication 996369 D02 FAQ – Modules for Micro-Strip Antennas and traces. The integration information shall include for the TCB review the integration instructions for the following aspects: the layout of trace design, parts list (BOM), antenna, connectors, and isolation requirements.
- Information that includes permitted variances (e.g., trace boundary limits, thickness, length, width, shape(s), dielectric constant, and impedance as applicable for each type of antenna);
- Each design shall be considered a different type (e.g., antenna length in multiple(s) of frequency, the wavelength, and antenna shape (traces in phase) can affect antenna gain and must be considered);
- The parameters shall be provided in a manner permitting host manufacturers to design the printed circuit (PC) board layout;
- Appropriate parts by manufacturer and specifications;
- Test procedures for design verification; and
- Production test procedures for ensuring compliance.
The module grantee shall provide a notice that any deviation(s) from the
defined parameters of the antenna trace, as described by the instructions,
requires that the host product manufacturer must notify the module grantee
that they wish to change the antenna trace design. In this case, a Class II
permissive change application is required to be filed by the grantee, or the
host manufacturer can take responsibility through the change in FCC ID (new
application) procedure followed by a Class II permissive change application.
Explanation: Yes, The module with trace antenna designs and This manual
has been shown the layout of trace design, antenna, connectors, and isolation
requirements.
RF exposure considerations
It is essential for module grantees to clearly and explicitly state the RF
exposure conditions that permit a host product manufacturer to use the module.
Two types of instructions are required for RF exposure information: (1) to the
host product manufacturer, to define the application conditions (mobile,
portable – xx cm from a person’s body); and (2) additional text needed for the
host product manufacturer to provide to end-users in their end-product
manuals. If RF exposure statements and use conditions are not provided, then
the host product manufacturer is required to take responsibility for the
module through a change in FCC ID (new application).
Explanation: This module complies with FCC RF radiation exposure limits
set forth for an uncontrolled environment, This equipment should be installed
and operated with a minimum distance of 20 centimeters between the radiator
and your body.” This module is designed to comply with the FCC statement, FCC
ID is A3LWCA731M.
Antennas
A list of antennas included in the application for certification must be
provided in the instructions. For modular transmitters approved as limited
modules, all applicable professional installer instructions must be included
as part of the information to the host product manufacturer. The antenna list
shall also identify the antenna types (monopole, PIFA, dipole, etc. (note that
for example an “Omni-directional antenna” is not considered to be a specific
“antenna type”). For situations where the host product manufacturer is
responsible for an external connector, for example with an RF pin and antenna
trace design, the integration instructions shall inform the installer that a
unique antenna connector must be used on Part 15 authorized transmitters used
in the host product. The module manufacturers shall provide a list of
acceptable unique connectors.
Explanation: The EUT has a Chip Antenna, and the antenna uses a
permanently attached antenna which is unique.
Label and compliance information
Grantees are responsible for the continued compliance of their modules to the
FCC rules. This includes advising host product manufacturers that they need to
provide a physical or e-label stating “Contains FCC ID” with their finished
product. See Guidelines for Labeling and User Information for RF Devices – KDB
Publication 784748.
Explanation: The host system using this module, should have a label in a
visible area indicating the following texts: “Contains FCC ID: A3LWCA731M,
Contains IC: 649E-WCA731M”
Information on test modes and additional testing requirements
Additional guidance for testing host products is given in KDB Publication
996369 D04 Module Integration Guide. Test modes should take into consideration
different operational conditions for a stand-alone modular transmitter in a
host, as well as for multiple simultaneously transmitting modules or other
transmitters in a host product.
The grantee should provide information on how to configure test modes for host
product evaluation for different operational conditions for a stand-alone
modular transmitter in a host, versus with multiple, simultaneously
transmitting modules or other transmitters in a host. Grantees can increase
the utility of their modular transmitters by providing special means, modes,
or instructions that simulate or characterizes a connection by enabling a
transmitter. This can greatly simplify a host manufacturer’s determination
that a module as installed in a host complies with FCC requirements.
Explanation: Top band can increase the utility of our modular
transmitters by providing instructions that simulate or characterizes a
connection by enabling a transmitter.
Additional testing, Part 15 Subpart B disclaimer
The grantee should include a statement that the modular transmitter is only
FCC authorized for the specific rule parts (i.e., FCC transmitter rules)
listed on the grant, and that the host product manufacturer is responsible for
compliance with any other FCC rules that apply to the host not covered by the
modular transmitter grant of certification. If the grantee markets their
product as being Part 15 Subpart B compliant (when it also contains
unintentional-radiator digital circuity), then the grantee shall provide a
notice stating that the final host product still requires Part 15 Subpart B
compliance testing with the modular transmitter installed.
Explanation: The module is without unintentional-radiator digital
circuity, so the module does not require an evaluation by FCC Part 15 Subpart
B. The host should be evaluated by the FCC Subpart B.