BL-M7638BU4 IEEE 802.11a/b/g/n 300Mbps WLAN +
Bluetooth 5.0 Combo Module SHENZHEN BILIAN ELECTRONIC CO., LTD Add: 10~11/F, Building 1A, Huaqiang idea park, Guangming district, Shenzhen. Guangdong, China Web: www.b-link.net.cn Top view Bottom view Module Name: BL-M7638BU4 Module Type: 802.11a/b/g/n 300Mbps WLAN + Bluetooth 5.0 Combo Module Revision: V1.0 Customer Approval:
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1 http://www.b-link.net.cn Revision History Revision Summary 1.0 Official release Release Date 2021-01-26 1. Introduction BL-M7638BU4 module design is based on Mediatek MT7638BUN solution, The MT7638BUN is a highly integrated single chip which has built in a 2x2 dual-band wireless LAN radio and Bluetooth radio. It includes Bluetooth EDR and LE radio which complies with Bluetooth v2.1+EDR, v4.2, and v5.0. The Module is a highly integrated MAC/BBP and 2.4/5GHz PA/LNA single chip which supports a 300Mbps PHY rate. The Module is designed to support standard-based features in the areas of security, quality of service, and international regulations, giving end users the greatest performance anytime and in any circumstance. This documentation describes the engineering requirements specification. 1.1 Features Operating Frequencies: 2.4~2.4835GHz or 5.15~5.85GHz Host Interface is USB 2.0 IEEE Standards: IEEE 802.11a/b/g/n Wireless data rate can reach up to 300Mbps Power Supply:5V0.2V main power supply 2 http://www.b-link.net.cn 1.3 General Specifications Module Name BL-M7638BU4 Chipset Mediatek MT7638BUN WiFi Standards IEEE802.11a/b/g/n Host Interface USB2.0 Dimension 33mm x 70mm x 6.0mm (L*W*H) Tolerance: 0.15mm Power Supply DC5V0.2V Operation Temperature
-20 to +70 Storage Temperature
-40 to +125 Operation Humidity 10% to 95% RH (Non-Condensing) 3 http://www.b-link.net.cn 2. Pin Assignments Top view 2.1 Pin Definition No Pin Name Type Description Supply DC_EN I/O Reset the module by controlling the DC / DC enable pin BT_WAKE_HOST I/O Bluetooth wake up host VDD DM-
DP+
GND GND Main power supply USB 2.0 differential line USB 2.0 differential line P I/O I/O P P GND GND 3D_SYNC REG_ON I/O synchronization function I/O Module reset 10 WLAN_DEV_WA KE I/O WLAN_DEV_WAKE P: Power, I: Input, O: Output, I/O: In/Output 1 2 3 4 5 6 7 8 9 4 http://www.b-link.net.cn 3. Electrical and Thermal Specifications 3.1 Recommended Operating Conditions Parameters Min Typ Max Units Ambient Operating Temperature External Antenna VSWR Supply Voltage DC-5V
-20
4.8 25
5.0 70
5.2
V 3.2 Current Consumption Conditions : VDD=5V ; Ta:25 Use Case 2.4G 1Mbps TX (RF-Test1TX) for 18dBm 2.4G 1Mbps RX (RF-Test1RX) 2.4G 11Mbps TX (RF-Test1TX) for 18dBm 2.4G 11Mbps RX (RF-Test1RX) 2.4G 6Mbps TX (RF-Test1TX) for 18dBm 2.4G 6Mbps RX (RF-Test1RX) 2.4G 54Mbps TX (RF-Test1TX) for 14dBm 2.4G 54Mbps RX (RF-Test1RX) 2.4G MCS0(HT20) TX (RF-Test1TX) for 16dBm 2.4G MCS0(HT20) RX (RF-Test1RX) 2.4G MCS7(HT20) TX (RF-Test1TX) for 14dBm 2.4G MCS7(HT20) RX (RF-Test1RX) 2.4G MCS8(HT40) TX (RF-Test2TX) for 16dBm 2.4G MCS8(HT40) RX (RF-Test2RX) 2.4G MCS15(HT40) TX (RF-Test2TX) for 14dBm VDD Current (average) Typ Max Units 260 100 270 100 240 100 130 100 220 100 140 110 410 110 260 290 120 300 120 270 130 160 120 250 120 170 120 440 130 290 mA mA mA mA mA mA mA mA mA mA mA mA mA mA mA 5 http://www.b-link.net.cn 2.4G MCS15(HT40) RX (RF-Test2RX) 110 130 mA 5G 6Mbps TX (RF-Test1TX) for 16dBm 5G 6Mbps RX (RF-Test1RX) 5G 54Mbps TX (RF-Test1TX) for 14dBm 5G 54Mbps RX (RF-Test1RX) 5G MCS0(HT20) TX (RF-Test1TX) for 16dBm 5G MCS0(HT20) RX (RF-Test1RX) 5G MCS7(HT20) TX (RF-Test1TX) for 14dBm 5G MCS7(HT20) RX (RF-Test1RX) 5G MCS7(HT40) TX (RF-Test1TX) for 14dBm 5G MCS7(HT40) RX (RF-Test1RX) 5G MCS8(HT40) TX (RF-Test) for 16dBm 5G MCS8(HT40) RX (RF-Test) 5G MCS15(HT40) TX (RF-Test) for 14dBm 5G MCS15(HT40) RX (RF-Test) BT BR_1M DH5 TX@3dBm(MPTools, WiFi_Disable) BT EDR_3M DH5 TX@3dBm(MPTools, WiFi_Disable) BT LE_1M TX@3dBm(MPTools, WiFi_Disable) BT LE_2M TX@3dBm(MPTools, WiFi_Disable) BT BR_1M DH5 RX Active(MPTools, WiFi_Disable) BT EDR_3M DH5 RX Active(MPTools, WiFi_Disable) BT LE_1M RX Active(MPTools, WiFi_Disable) BT LE_2M RX Active(MPTools, WiFi_Disable) 360 100 220 100 350 110 220 100 220 110 580 110 485 120 110 100 110 100 60 70 60 60 390 120 250 120 380 130 250 120 255 130 610 130 515 140 130 110 130 110 90 110 100 90 mA mA mA mA mA mA mA mA mA mA mA mA mA mA mA mA mA mA mA mA mA mA 6 http://www.b-link.net.cn 4. WIFI & Bluetooth RF Specifications 4.1 WIFI RF Specification Conditions : VDD=5V ; Ta:25 Features Description WLAN Standard IEEE 802.11a/b/g/n Frequency Range 2.4GHz~2.4835GHz /5.15~5.85Hz Channels CH1~CH13 (For 20MHz Channels) CH36, CH40, CH44, CH48;
CH149~CH165 (For 20MHz Channels) 802.11b (DSSS) : DBPSK , DQPSK , CCK ;
802.11a/g (OFDM) : BPSK , QPSK , 16QAM , 64QAM ;
Modulation 802.11n (OFDM) : BPSK , QPSK , 16QAM , 64QAM ;
8DPSK,/4DQPSK, GFSK BT:
WIFI:
802.11b: 1, 2 ,5.5,11Mbps 802.11a/g: 6,9,12,18,24,36,48,54Mbps BT:
1Mbps for Basic Rate 2,3Mbps for Enhanced Date Rate Date Rate 802.11n: HT20 reach up to144.4Mbps, HT40 reach up to300Mbps Frequency Tolerance 15ppm 2.4G Receiver Specifications RX Rate Min Input Level(Typ) Max Input Level(Typ) 802.11b@1Mbps 802.11b@11Mbps 802.11g@6Mbps 802.11g@54Mbps 802.11n@HT20_MCS0 802.11n@HT20_MCS7 802.11n@HT40_MCS0 802.11n@HT40_MCS7 802.11a@54Mbps 802.11a@HT20/40_MCS7
-92dBm
-85dBm
-90dBm
-72dBm
-88dBm
-68dBm
-86dBm
-66dBm
-72dBm
-68dBm
-10dBm
-10dBm
-15dBm
-15dBm
-15dBm
-15dBm
-15dBm
-15dBm
-15dBm
-15dBm PER
< 8%
< 8%
< 10%
< 10%
< 10%
< 10%
< 10%
< 10%
< 10%
< 10%
7 http://www.b-link.net.cn 4.1 Bluetooth RF Specification Conditions: VDD33=3.3V; Ta:25 Features Description Bluetooth Specification Bluetooth v2.1+EDR/3.0+HS/4.2/5.0 Frequency Range 2.4~2.4835GHz (2.4GHz ISM Band) Bluetooth Classic: Ch0~Ch78 (For 1MHz Channels);
Bluetooth Low Energy: Ch0~Ch39 (For 2MHz Channels);
Channels Power Classes Date Rate & Modulation Items TX Power BR_1M EDR_2M EDR_3M LE_125/500K LE_1M LE_2M Bluetooth Classic: Class1;
Bluetooth Low Energy: Class1.5;
BR_1Mbps: GFSK;
EDR_2Mbps: /4-DQPSK;
EDR_3Mbps: 8DPSK;
LE_125Kbps: GFSK (Coded_S=8);
LE_500Kbps: GFSK (Coded_S=2);
LE_1Mbps: GFSK (Uncoded);
LE_2Mbps: GFSK (Uncoded);
2 2 2 2 2 2 5 5 5 5 5 5 10 10 10 10 10 10 Bluetooth Transmitter Specifications Min dBm Typ dBm Max dBm 8 http://www.b-link.net.cn Bluetooth Receiver Specifications Items BR_1M EDR_2M EDR_3M LE_125K LE_500K LE_1M LE_2M Sensitivity Maximum Input Level Input Level
(Typ: dBm Input Level
(Typ: dBm BER 0.1%
0.01%
0.01%
30.8%
30.8%
30.8%
30.8%
-90
-80
-70
-90
-90
-90
-90 BER 0.1%
0.1%
0.1%
30.8%
30.8%
30.8%
30.8%
-5
-5
-5
-5
-5
-5
-5 Input Level PER Input Level PER Note: For BER receiver sensitivity test, bit error rate (BER) better than 0.1% for a minimum of 1600000 bits transmitted by the tester; For EDR receiver sensitivity test, bit error rate (BER) better than 0.01% for a minimum of 16000000 bits transmitted by the tester; For LE receiver sensitivity test, packet error rate (PER) better than 30.8% for a minimum of 1500 packets transmitted by the tester. 5. Mechanical Specifications 5.1 Module Outline Drawing 9 http://www.b-link.net.cn Top view Side view Module dimension: 33.0*70.0*6.0mm (L*W*H; Tolerance: 0.15mm) Module Bow and Twist0.1mm 10 http://www.b-link.net.cn 6. Reflow Soldering Standard Conditions Please use the reflow within 2 times. Set up the highest temperature within 250. 7. Key Components Of Module No. Parts Specification Manufacturer Note 1 Chipset MT7638BUN Mediatek 2 PCB BL-M7638BU4 3 Crystal 240MHz-10pF-10ppm-322 LUCKI CM ELECTRONICS CO., LTD 5 HOSONIC ELECTRONIC CO., LTD. Shenzhen Tie Fa Technology limited Guangdong KINGSHINE ELECTRONICS CO., LTD Quzhou Sunlord Electronics Co., Ltd HUBEI TKD ELECTRONICS TECHNOLOGY CO., LTD. SHENZHEN KAIYUEXIANG ELECTRONICS CO., LTD 11 http://www.b-link.net.cn 8. Package and Storage Information 8.1 Package Dimensions 12 http://www.b-link.net.cn 13 http://www.b-link.net.cn 8.2 Storage Conditions Absolute Maximum Ratings:
Storage temperature: -45 to +85 Storage humidity: 10% to 95% RHNon-Condensing Recommended Storage Conditions:
Storage temperature: 5 to +40 Storage humidity: 20% to 90% RH ESD Sensitivity The Module is a static-sensitive electronic device. Do not operate or store near strong electrostatic fields. Take proper ESD precautions!
14 http://www.b-link.net.cn FCC Statement This device complies with part 15 of the FCC rules. Operation is subject to the following two conditions: (1) thi s device may not cause harmful interference, and (2) this device must accept any interference received, incl uding interference that may cause undesired operation. 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, pursua nt to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful inte rference in a residential installation. This equipment generates uses and can radiate radio frequency energy a nd, if not installed and used in accordance with the instructions, may cause harmful interference to radio com munications. 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 turn ing 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 important announcement Important Note:
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 minimum distance 20cm between the radiator and your body. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. Country Code selection feature to be disabled for products marketed to the US/Canada. 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, 3. For all products market in US, OEM has to limit the operation channels in CH1 to CH11 for 2.4G band by supplied firmware programming tool. OEM shall not supply any tool or info to the end-user regarding to Regulatory Domain change. (if modular only test Channel 1-11) As long as the three conditions above are met, further transmitter testing 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. End Product Labeling The final end product must be labeled in a visible area with the following" Contains FCC ID:2AL6KBL-
M7638BU4"
Manual Information to the End User 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 users manual of the end product which integrates this module. The end user manual shall include all required regulatory information/warning as show in this manual. Integration instructions for host product manufacturers according to KDB 996369 D03 OEM Manual v01 2.2 List of applicable FCC rules CFR 47 FCC PART 15 SUBPART C has been investigated. It is applicable to the modular transmitter 2.3 Specific operational use conditions 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. 2.4 Limited module procedures Not applicable 2.5 Trace antenna designs Not applicable 2.6 RF exposure considerations This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 20cm between the radiator & your body. 2.7 Antennas This radio transmitter FCCID: 2AL6KBL-M7638BU4has been approved by Federal Communications Commission to operate with the antenna types listed below, with the maximum permissible gain indicated. Antenna types not included in this list that have a gain greater than the maximum gain indicated for any type listed are strictly prohibited for use with this device. Model Type Connector 2400-2483.5 MHz 5000-6000 MHz External Antenna External Antenna
2400-2483.5 MHz 2.0dBi 5150-5250 MHz
Peak gain ( dBi ) 5250-5350 MHz
5470-5725 MHz
5725-5850 MHz
2.0dBi
2.0dBi Information 2.8 Label and compliance information The final end product must be labeled in a visible area with the following" Contains FCC ID:2AL6KBL-M7638BU4". requirements modes 2.9 Host manufacturer is strongly recommended to confirm compliance with FCC requirements for the transmitter when the module is installed in the host. 2.10 Additional testing, Part 15 Subpart B disclaimer Host manufacturer is responsible for compliance of the host system with module installed with all other applicable requirements for the system such as Part 15 B. additional testing and test on