
Approval statement
FCC Statement
To satisfy FCC exterior labeling requirements, the following text must be placed on the exterior of the end product.
Contains Transmitter module FCC ID: A3LWCP731M
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.
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.
IC Information
This device complies with Industry Canada license-exempt RSS standard(s). Operation is subject to the following two
conditions:
(1) this device may not cause interference, and
(2) this device must accept any interference, including interference that may cause undesired operation of the device.
Cet appareil est conforme avec Industrie Canada exempts de licence standard RSS (s). L'opération est soumise aux deux
conditions suivantes:
(1) cet appareil ne peut causer d'interférences, et
(2) cet appareil doit accepter toute interférence, y compris les interférences qui peuvent causer un mauvais fonctionnement
de l'appareil.
The end product must be labeled to display the Industry Canada certification number of the module.
Contains transmitter module IC: 649E-WCP731M
Le dispositif d'accueil doivent être étiquetés pour afficher le numéro de certification d'Industrie Canada du module.
Contient module émetteur IC : 649E-WCM730Q

Information for OEM Integrator
This device is intended only for OEM integrators under the following conditions:
1) The antenna must be installed such that 20 cm is maintained between the antenna and users, and
2) The transmitter module may not be co-located with any other transmitter or antenna.
End product labelling
The label for end product must include
“Contains FCC ID: A3LWCP731M, Contains IC: 649E-WCP731M”.
“ 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 minimum distance of 20cm between the radiator and your body. This transmitter
module is authorized only for use in device where the antenna may be installed such that 20 cm may be maintained
between the antenna and users.”
Installation
- This device installs as Surface Mount Soldering type on a PCB.

User Information
WCP731Mis a Wi-Fi / Bluetooth Combo module compliant with IEEE802.11 b.g.n MAC/baseband/radio and
Bluetooth 5.0 optimized for low-power applications.
Thecore chipset is from MediaTek part number MT7668AUN.
- Features
>Dual-stream spatial multiplexing up to 300Mbps data rate
>Support 20,40MHz channel with optional SGI(64QAM modulation)
>On-chip power amplifiers and low –noise amplifiers for both bands
>Complies with Bluetooth Core Specification Version 5.0
>Supports BT/Wi-Fi coexistence.
>Adaptive frequency hopping (AFH) for reducing radio frequency interference
- Time base of the RF frequency
For IF and RF frequency, 40MHz crystal is a clock reference.
- Synthesizer
Synthesizer inside Transceiver. Internal voltage controlled oscillator (VCO) provides the desired LO
signal base on the phase-locked loop (PLL) with a relatively wide tuning range for this application.
Internal fractional nPLL allows support for a wide range of reference clock frequencies
- Wi-FiTransmission
Baseband data is modulated and upconverted to the 2.4GHz ISM ,respectively.
Linear on chip power amplifier are included, which are capable of delivering high output powers while
Meeting IEEE802.11b/g/n specifications without the need for external PAs.When using the internal PAs, closedloop output power control is completely integrated.Base-band Processing (BBP) IC has DSSS (BPSK/QPSK/CCK)
and OFDM(BPSK/QPSK/16QAM/64QAM) modulation function, it provides transmission data rate are 1, 2, 5.5,
11Mbps on DSSS and 6, 12, 18, 24, 36, 48, 54 Mbps on OFDM. Digital data signal will be converted toanalog (TX
IQ) signals through DAC in BBP IC, TX IQ pass through to low pass filter. TX I/Q signaluse direct conversion (zero-
IF) architecture converter to generate carrier frequency signal. Transceiver
IC and internal PA magnify output power.
- Wi-FiReceiver
The MT7668AUN has a wide dynamic range, direct conversion receiver that employs high-order on-chip
channel filtering to ensure reliable operation in the noisy 2.4GHz ISM band Control signals are available that can
support the use of optional LNAs for each band,which can increase the receive sensitivity by several
decibels.Reverse direction isolation of LNA inside Transceiver IC suppresses unwanted radiation. Then RFsignal
will bedirectly down to IF signal (RX IQ) and high frequency spurious emissions are suppressed by LPF. Atlast RX
IQ signal will be demodulated digital data.

-Bluetooth Low Energy
The WCP731M support the Bluetooth 4.2 LE and 5.0 BLE 2Mbps
- Link Control Layer
The link control layer is part of the Bluetooth link control functions that are implemented in dedicated logic in the
link control unit(LCU).
Each task performs a different state in the Bluetooth Link Controller.
- Wideband speech
The WCP731M provides supports for wideband speech(WBS) using on-chip SmartAudio technology.
The WCP731M can perform modified Sub Band Codec(mSBC) encoding and decoding of linear 16bitsat
16kHz(256kbps rate) transferred over USB interface.
- Adaptive Frequency Hopping
The WCP731M gathers link quality statistics on a channel by basis to facilitate channel assessment and
Channel map selection. The link quality is determined using both RF and baseband signal processing to
Provide a more accurate frequency-hop map.