SPECIFCATION CDW-N37603U-03 DATASHEET Software： Customer Design Approve Check Approve Date Version Date V1.2 2021.06.01 CHINA DRAGON TECHNOLOGY LIMI TED B4 Bidg.haosan NO.1 Industry Park,Shajing street,B Shenzheng.China TEL：(86 755) 81449957 FAX：(86 755) 81449967 E-mail: Info@cdtech.cn Http://www.cdtech.
WiFi Module CDW-N37603U-03 Reversion History： Version Date 1.0 2020.10.09 1.1 2021.05.14 PCBA physical photo 1.1 2021.06.
WiFi Module CDW-N37603U-03 1. Overview The CDW-N37603U-03 is a highly integrated Wi-Fi single chip which supports 300 Mbps PHY rate. It fully complies with IEEE 802.11n and IEEE 802.11 b/g standards, offering feature-rich wireless connectivity at high standards, and delivering reliable, cost-effective throughput from an extended distance. Optimized RF architecture and baseband algorithms provide superb performance and low power consumption.
WiFi Module CDW-N37603U-03 3. Block Diagram VCC 3.3V WIFI TX/RX Matching Antenna 0 WIFI TX/RX Matching Antenna 1 USB2.0 MT7603U Inter face IO XTAL 40MHZ 4. DC Characteristics symbol Parameter Minimum Typical Maximum Units V33USB 3.3Vsupply voltage 3.0 3.3 3.6 V VD12DE 1.2Vsupply voltage 1.10 1.2 1.32 V VD16DE 1.6Vsupply voltage 1.50 1.6 1.66 V IDD5.0 5.0V rating TX current -- -- 330 mA IDD5.0 5.0V rating RX current -- -- 200 mA -- -- 600 mA IDD33 3.
WiFi Module CDW-N37603U-03 5. General Specification Model CDW-N37603U-03 Product Name WLAN 11n USB 2T2R module Major Chipset MT7603UN Antenna IFA antenna*2 Antenna Gain 2.3dBi 802.11b:CCK,DQPSK,DBPSK Modulation Method 802.11g:64QAM,16QAM,QPSK,BPSK 802.11n:BPSK,QPSK,16QAM,64QAM 2412-2462MHz for 802.11b/g/n20BW Frequency Band 2422-2452 MHz for 802.11n-40BW Channels 802.11b/g/n-20MHz:11, n-40MHz:7 802.11b:11/5.5/2/1 Mbps 802.11g:54/48/36/24/18/12/9/6Mbps Max. Frequency Deviation 802.
WiFi Module CDW-N37603U-03 Receive - 1Mbps PER @ -93 dBm, typical Sensitivity (11b,20MHz) - 2Mbps PER @ -91 dBm, typical @8% PER - 5.
WiFi Module CDW-N37603U-03 7. Pin Description and PCB size NO. Symbol Description 1 WOW Wake up 2 GND Ground connected 3 UDP USB positive differential data lines 4 UDM USB negative differential data lines 5 3.3V Power supply 3.
WiFi Module CDW-N37603U-03 8. Modular photo Correspo nding to the material specifications suppliers Crystal 40Mhz JWT，FK,TXC IC MT7603U MTK PCBA VER N37603U-03 A,O PCBA physical photo TOP BOTTOM LxWxH：17.7 x 27.0 x 2.4mm ±0.
WiFi Module CDW-N37603U-03 9. Recommended Reflow Profile Referred PC/JEDEC standard.
WiFi Module CDW-N37603U-03 ESD CAUTION The CDW-N37603U-03 is ESD (electrostatic discharge) sensitive device and may be damaged with ESD or spike voltage. Although CDW-N37603U-03 is with built-in ESD protection circuitry, please handle with care to avoid the permanent malfunction or the performance degradation.
WiFi Module CDW-N37603U-03 CHINA DRAGON TECHNOLOGY LIMITED 10 Page
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.
Requirement per KDB996369 D03 2.2 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.
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. 2.5 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.
2.6 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.
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 simulates or characterizes a connection by enabling a transmitter.
