cdtech CDW-6986850-00 Single Band WiFi + BLE5.0 Module User Guide
- May 15, 2024
- Cdtech
Table of Contents
catch CDW-6986850-00 Single Band WiFi + BLE5.0 Module
Product Specifications
- Model : CDW-6986850-00
- Single band WiFi + BLE5.0 Module
- Supports IEEE 802.11 b/g/n protocol
- Data rates up to 150 Mbps
- Supports 20MHz and 40MHz bandwidth in the 2.4 GHz band
- Supports BLE5.0
- 32-bit RISC-V single-core processor with a main frequency up to 160 MHz
Product Usage Instructions
General Specifications
The product specifications are as follows:
- Major Chipset : CDW-6986850-00
- Standard: IEEE 802.11 b/g/n
- Modulation Method : OFDM /64-QAM,16-QAM, QPSK, BPSK
- Operating Temperature: Refer to documentation for specific values
- Storage Temperature : Refer to the documentation for specific values
- Humidity : Refer to the documentation for specific values
- Dimensions : Refer to the documentation for specific dimensions
RF Specifications
The RF specifications include:
- WLAN Standard: IEEE 802.11b/g/n WiFi compliant
- Receive Sensitivity (11b,20MHz): Varies based on MCS values
- Receive Sensitivity (11g,20MHz): Varies based on MCS values
- Receive Sensitivity (11n,20MHz): Varies based on MCS values
- Receive Sensitivity (11n,40MHz): Varies based on MCS values
FAQ
- Q: What is the storage life of the product?
- A : The storage life is 12 months under recommended storage conditions.
Software
Reversion History：
Overview
ESP8685 is an ultra-low power and highly integrated MCU-based SoC solution that supports 2.4 GHz Wi-Fi and Bluetooth® Low Energy (Bluetooth LE). ESP8685 series of chips have a 32-bit RISC V single-core processor. They integrate a rich set of peripherals, ranging from UART, I2C, I2S, remote control peripheral, LED PWM controller, general DMA controller, TWAI ® controller, USB Serial /JTAG controller, temperature sensor, and ADC.
Features
- The IEEE 802.11 b / g / n protocol is supported
- Support the 1T1R mode, with data rates up to 150 Mbps
- Support for 20mhz and 40mhz bandwidth in the 2.4 GHz band
- Support BLE5.0
- 32-bit RISC-V single-core processor with main frequency up to 160 MHz
Block Diagram
General Specification
RF Specification
GHz RF SpecificationFeature
Bluetooth Specification
Physical Dimensions
Electrical specification
Suggest working conditions:
Absolute maximum rating value:
Pin Description
Baking & storage temp e r a ture & Recommended Reflow Profile
- Baking & storage temp e r a ture
- A. Storage life life：12 months. Storage conditions:<40℃. Relative humidity:<90%R.H.
- B. After this bag is opened, devices that will be subjected to infrared reflow, vapor phase reflow, or equivalent processing must be .
- a. Check the humidity card: stored at 20%RH.If :30%~40%(pink)or greater than 40%(red).The labeling module has moisture absorption.
- b. Mounted within 168 hours at factory conditions of: t 30%℃ 60%R.H.
- c. Once opened, the workshop the preservation of life for 168 hours.
- C. Module apart packing after 168 hours hours，If baking is required, devices may be baked for
- a. Modules must be to remove module moisture problem.
- b. Baking temperature: 40℃±5℃, 120 hours.
- c. After baking, put the proper amount of desiccant to seal packages.
Recommended Reflow Profile
- Referred IPC/JEDEC standard.
- Peak Temperature: <250°C
- Number of Times: ≤2 times
Packing information
Carrier size Detail:
Packaging Detail:
The 6986850 6986850-00 module is an ESD (electrostatic discharge) sensitive device and may be damaged with ESD or spike voltage. Although the 6986850 -00 module is with built built-in ESD protection circuitry, please handle with care to avoid the permanent malfunction or the performance degradation.
FCC WARNING
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 complies with Part 15 of the FCC 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 undesired operation.
This device and its antenna(s) must not be co-located or operating in conjunction with any other antenna or transmitter.
15.105 Information to the user.
(b) For a Class B digital device or peripheral, the instructions furnished the
user shall include the following or similar statement, placed in a prominent
location in the text of the manual:
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 the receiver.
Connect the equipment to 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 equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with a minimum distance 20 cm between the radiator and your body.
Radiation Exposure Statement:
This equipment complies with FCC radiation exposure limits set forth for an
uncontrolled environment.
This transmitter must not be co-located or operating in conjunction with any
other antenna or transmitter.
The availability of some specific channels and/or operational frequency bands
are country-dependent and are firmware programmed at the factory to match the
intended destination.
The firmware setting is not accessible by the end user.
The final end product must be labeled in a visible area with the
following:
“Contains Transmitter Module ROW CDW69868500
Requirement per KDB996369 D03
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).
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 a 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 PCB a antenna, Yes, the module contains a permanently attached antenna , The antenna gain is 0. 74 dBi.
Limited module procedures
If a modular transmitter is approved as a “limited module,” then the module manufacturer isresponsible for approving the host environment that the limited module is used with. 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 reviewing 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 a single 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:layout of trace design, parts list (BOM), antenna, connectors, and isolation requirements.
a ) 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);
b) 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);
c) The parameters shall be provided in a manner permitting host
manufacturers to design the printed circuit (PC) board layout;
d) Appropriate parts by manufacturer and specifications;
e) Test procedures for design verification; and
f) 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, require 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 ( 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 of 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: ROW CDW69868500
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 “omnidirectional 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 the Part 15 authorized transmitters used in the host product. The module manufacturers shall provide a list of acceptable unique connectors.
Explanation : The EUT has PCB a antenna, Yes, the module contains a permanently attached antenna, and The antenna gain is 0. 74 dBi.
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 text : “Contains FCC ID: ROW CDW69868500
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 characterize 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 :
The company can increase the utility of our modular transmitters by providing instructions that simulate or characterize 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 to 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 circuitry), then the grantee shall provide a notice stating that the final host product still requires 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.