Users Manual of WCH734R
1.
Introduction
WCH734R
is a Wi-Fi / Bluetooth Combo module compliant with IEEE802.11 a.b.g.n.ac.
MAC/baseband/radio and Bluetooth 5.2 optimized for low-power applications. This module is
for Samsung A/V products.
2.
Operating Condition
Parameter Min Typ. Max Unit
Operating voltage 3.2 3.3 3.4 V
Operating temperature -10 - 50
℃
3.
Product Details
- Data Modulation
. OFDM:BPSK,QPSK,16QAM,64QAM,256QAM,1024QAM,4096QAM for 802.11a,g,n,ac
. FHSS:GFSK,OQPSK, 8DPSK, π/4DPSK for Bluetooth
- Frequency Range
2.4GHz: 2400-2483.5MHz
5GHz： 5150-5850MHz
-Features
Compliant with IEEE 802.11 a/b/g/n/ac standards
Dual-band 2.4GHz/5GHz
Adopts Dual-stream Spatial Multiplexing technology, with a transmission rate of up to 114
Mbps
The chip has built-in 2.4G & 5G PA (Power Amplifier) and LNA (Low Noise Amplifier), and
supports MU-MIMO RX (Multi-User Multiple-Input Multiple-Output Receive)
Supports Bluetooth V5.2
Supports BT (Bluetooth) and Wi-Fi coexistence
Supports Adaptive Frequency Hopping (AFH) to reduce radio frequency interference
[Regulation statement]
US FCC statement
RF Software restrictions
1. Contention-Based Protocol, as demonstrated in the FCC test report, is permanently embedded in
the module and is not host-dependent and can’t be changed by anyone.
2. Operation of transmitters in the 5.25-5.35GHz and 5.47-5.725GHz bands in this Modular device
will only associate and connect with a low-power indoor access point or subordinate device and
never directly connect to other client devices.
This feature is included in its firmware and can’t be changed by anyone.
3. Operation of transmitters in the 5.25-5.35GHz, 5.47-5.725GHz bands in this Modular device will
always initiate transmission under the control of a low-power indoor AP or subordinate except for
brief transmissions before joining a network. These short messages will only occur if the client has
detected an indoor AP or subordinate operating on a channel. These brief messages will have a
timeout mechanism such that if it does not receive a response from an AP it will not continually
repeat the request.
This device complies with Part 15 of the FCC`s Rules. Operation is subject to the following two
Conditions:
1. This device may not cause harmful interference, and
2. This device must accept any interference received, including interference that may cause
undesirable operation.
To satisfy FCC exterior labeling requirements, the following text must be placed on the exterior of
the end product.
Contains Transmitter module FCC ID: A3LWCH734R
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.
-The OEM integrator is responsible for ensuring the end-user has no manual instruction to remove
or install module.
-The module is limited to installation in mobile or fixed applications.
FCC Caution: Any changes or modifications not expressly approved by the party responsible for
compliance could void the user's authority to operate this equipment.
This device meets all the other requirements specified in Part 15E, Section 15.407 of the FCC Rules.
-RF exposure considerations .
The module has been certified for integration into products only by OEM integrators under the
following condition:
-The antenna(s) must be installed such that a minimum separation distance of at least 20cm is
maintained between the radiator(antenna) and all persons at all times.
-The transmitter module must not be co-located or operating in conjunction with any other antenna
or transmitter except in accordance with FCC multi- transmitter product procedures.
The device operates strictly as a client in DFS channels (with passive scan). It does not support ad-
hoc, Wi-Fi Direct Group Owner, Hotspot, or any other peer-to-peer modes that may initiate a
network in DFS channels (UNII2-2A and UNII2- 2C band).
This module is intended for OEM integrators only. Per FCC KDB 996369 D03 OEM Manual v01
guidance, the following conditions must be strictly followed when using this certified module:
KDB 996369 D03 OEM Manual v01 rule sections:
2.2 List of applicable FCC rules
This module has been tested for compliance with CFR 47 FCC Part 15 C (15.247, DTS and DSS) and
CFR 47 FCC Part 15 E (NII). It is applicable to the modular transmitter
2.3 Summarize the specific operational use conditions
The module is tested for standalone mobile RF exposure use condition. Any other usage conditions
such as co-location with other transmitter(s) will need a separate reassessment through a class II
permissive change application or new certification.
Further operation restrictions on the host product include:
*Prohibited for control of or Communications with unmanned aircraft systems.
This radio transmitter FCC ID: A3LWCH734R
has been approved by Federal Communications
Commission to operate with the integrated Metal antenna and Chip antenna. Use of any other
antenna is strictly prohibited without filing an application for a new system-specific FCC ID.
2.4 Limited module procedures.
The module complies with FCC Part 15.247 / Part 15.407 and applies for Single module approval.
Under ISED Canada rules as the module is approved under RSS-248 Issue 3 it is a limited modular
approval and a C4PC submission is required for each host model.
2.5 Trace antenna designs Not applicable.
The antenna is integrated into the module and cannot be modified. See section 2.3.
2.6 RF exposure considerations
This equipment complies with FCC mobile 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. A separate SAR/Power Density evaluation is required to confirm compliance
with relevant FCC portable RF exposure rules.
2.7 Antennas
Note 1: Use of other antenna types or the same type of antenna with higher gain than listed above
must perform additional testing and appropriate permissive change approval.
Note 2: Additional testing/submission (C2PC) will be required if the device does not meet the
antenna and RF exposure requirements.
Note 3: Contact Samsung for additional guidance, if choose to use different antenna types or
higher/lower gain antennas in the end system.
IMPORTANT: The final host product must have an integral antenna that is not removable by the end
user.
2.8 Label and compliance information
The final end product must be labeled in a visible area with the following: “Contains FCC ID:
A3LWCH734R”.
The grantee's FCC ID can be used only when all FCC compliance requirements are met.
2.9 Information on test modes and additional testing requirements
This transmitter is tested in a standalone mobile RF exposure condition and any co-located
or simultaneous transmission with other transmitters need class II permissive change re-
evaluation or new certification.
2.10 Additional testing, Part 15 Subpart B disclaimer
This transmitter module is tested as a subsystem and its certification does not cover the
FCC Part 15 Subpart B (unintentional radiator) rule requirement applicable to the final host.
The final host will still need to be reassessed for compliance with this portion of rule
requirements if applicable. If all 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.
IMPORTANT NOTE: In the event that these conditions cannot be met (for example certain
laptop configurations or co-location with another transmitter), then the FCC authorization
is no longer considered valid and the FCC ID 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.
2.11 Note EMI Considerations
The host manufacture is recommended to use D04 Module Integration Guide
recommending as "best practice" RF design engineering testing and evaluation in case
non-linear interactions generate additional non-compliant limits due to module placement
to host components or properties.
2.12 How to make changes
This module is stand-alone modular. If the end product will involve the Multiple
simultaneously transmitting condition or different operational conditions for a stand-alone
modular transmitter in a host, host manufacturer have to consult with module
manufacturer for the installation method in end system.
Canada IC statement
IC approval
This device contains licence-exempt transmitter(s)/receiver(s) that comply with Innovation,
Science and Economic Development Canada’s licence-exempt RSS(s). Operation is subject
to the following two conditions:
(1) This device may not cause interference.
(2) This device must accept any interference, including interference that may cause
undesired operation of the device.
L’émetteur/récepteur exempt de licencecontenudans le présentappareilestconforme aux
CNR d’Innovation, Sciences et Développementéconomique Canada applicables aux
appareils radio exempts de licence. L’exploitationestautorisée aux deux conditions
suivantes :
(1) L’appareil ne doit pas produire debrouillage;
(2) L’appareildoitaccepter toutbrouillageradioélectriquesubi, mêmesi le brouillageest
susceptible d’encompromettre lefonctionnement.
Caution: Any changed or modifications not expressly approved by the party responsible for
compliance could void the user`s authority to operate this equipment.
Attention: Toutechangéou modifications non expressémentapprouvéspar la
partieresponsable de la conformitépourraientannulerl'utilisateur `autorité de faire
fonctionnercetéquipement.
Please notice that if the ISED certification number is not visible when the module is
installed inside another device, then the outside of the device into which the module is
installed must also display a label referring to the enclosed module. This exterior label can
use wording such as the following: “Contains IC: 649E-(WCH734R)” any similar wording that
expresses the same meaning may be used.
l'appareil hôte doit porter une étiquette donnant le numéro de certification du module
d'Industrie Canada, précédé des mots (Contient un module d'émission , du mot IC: 649E-
(WCH734R) ou d'une formulation similaire exprimant le même sens, comme suit
The device for operation in the band 5150-5250 MHz is only for indoor use to reduce the
potential for harmful interference to co-channel mobile satellite systems.
Les dispositifs fonctionnant dans la bande 5150-5250 MHz sont réservés uniquement pour
une utilisation à l’intérieur afin de réduire les risques de brouillage préjudiciable aux systè
mes de satellites mobiles utilisant les mêmes canaux;
User should also be advised that high-power radars are allocated as primary users (i.e.
priority users) of the bands 5250-5350 MHz and 5650-5850 MHz and that these radars
could cause interference and/or damage to LE-LAN devices.
Les utilisateurs doivent également être informés que les radars de haute puissance sont
affectés aux bandes 5250 - 5350 MHz et 5650 - 5850 MHz en tant qu'utilisateurs
principaux (c. - à - D. utilisateurs prioritaires) et que ces radars peuvent causer des interfé
rences et / ou des dommages à l'équipement le - lan.
The device meets the exemption from the routine evaluation limits in section 6.6 of RSS
102 and compliance with RSS-102 RF exposure, users can obtain Canadian information on
RF exposure and compliance.
Le dispositif rencontre l'exemption des limites courantes d'évaluation dans la section 6.6 de
RSS 102 etla conformité à l'exposition de RSS-102 RF, utilisateurs peut obtenir l'information
canadienne surl'exposition et la conformité de RF.
This transmitter must not be co-located or operating in conjunction with any other antenna
or transmitter.
This equipment should be installed and operated with a minimum distance of 20
centimeters between the radiator and your body.
Cet émetteur ne doit pas être Co-placé ou ne fonctionnant en même temps qu'aucune
autre antenne ouémetteur. Cet équipement devrait être installé et actionné avec une
distance minimum de 20 centimètres entre le radiateur et votre corps.
IMPORTANT: The final host product must have an integral antenna that is not removable
by the end user.
Europe CE approval statement CE, UKCA approval
This device is restricted to indoor use when operating in the 5150-5350MHz frequency
range to reduce the potential for harmful interference to co-channel mobile satellite
systems in all EU/EFTA member states, Turkey and the UK.
Frequency Range and Maximum Output Power (EIRP)
- 2402 MHz to 2480 MHz: Below 20 dBm for Bluetooth
- 2412 MHz to 2472 MHz: Below 20 dBm for Wi-Fi
- 5150 MHz to 5250 MHz: Below 23 dBm for Wi-Fi
- 5260 MHz to 5320 MHz: Below 20 dBm for Wi-Fi
- 5745 MHz to 5700 MHz: Below 20 dBm for Wi-Fi
- 5725MHz to 5850 MHz: Below 14 dBm for Wi-Fi
Restricted countries:
This transmitter must not be co-located or operating in conjunction with any other antenna or
transmitter. This equipment should be installed and operated with a minimum distance of 20
centimeters between the radiator and your body.
Hereby, Samsung declares that this radio equipment is in compliance with Directive
2014/53/EU and the relevant UK statutory requirements. The full text of the declaration of
conformity is available at the following internet address: www.samsung.com
This equipment may be operated in all EU countries and in the UK.
Manufacturer Name: SAMSUNG ELECTRONICS CO., LTD.
Address: 129 SAMSUNG-RO, YEONGTONG-GU, SUWON-SI, GYEONGGI-DO,16677,
KOREA
EU Importer Name: Samsung
Address: PO Box 12987, Dublin. IE
UKCA Importer Name: Samsung
Address: Yateley, GU46 6GG. UK
Note:
1. This module cannot be installed in a weatherized enclosure and cannot operate from a
battery but only power sources.
2. The host device must be connected to a power source as it has no battery.
3. Tests such as host level EMC testing, safety testing, and potential RF tests such as RX
blocking, radiated spurious emissions, etc. should be considered based on the installation and
proximity to other circuits which may reduce receiver performance or couple/retransmit
radiated signals.
