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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  
0cm 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-

M7668BU4

 
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 user’s 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. 

 

Summary of Contents for BL-M7668BU4

Page 1: ...4 2 5 0 Features 3 Reserving System IEEE Std 802 11a IEEE Std 802 11b IEEE Std 802 11g IEEE Std 802 11n IEEE Std 802 11ac Bluetooth 2 1 EDR 4 2 5 0 4 Chip Solution Mediatek MT7668BUN 5 Size 33 0mm x7...

Page 2: ...circumstance This documentation describes the engineering requirements specification RF module Overview The general HW architecture for the module is shown in Figure 1 This WLAN Module design is base...

Page 3: ...11a b g n ac 2x2 Bluetooth 2 1 EDR 4 2 5 0 Modulation WIFI 11b DBPSK DQPSK and CCK and DSSS 11a g BPSK QPSK 16QAM 64QAM and OFDM 11n BPSK QPSK 16QAM 64QAM and OFDM 11ac BPSK QPSK 16QAM 64QAM 256QAM a...

Page 4: ...WIFI Module BT2 1 EDR 4 2 5 0 Module BT2 1 EDR 4 2 5 0Module BT2 1 EDR 4 2 5 0 2 Mechanical Specification Mechanical Outline Drawing Typical Dimension W x L 33 0mmx 70 0mm x 6 0mm General tolerance 0...

Page 5: ...BT RFIP_BT BT_TRX 2 50 Ohm 1 3nH L0201 C14 0 9pF C0201 L5 C15 1 5nH 2 7nH L0201 C0201 C16 0 5pF C0201 Pin define SCH W F Front end IN BT C7 0 ohm C0201 BT_TRX CON3 ANT BT_RF C163 C164 NI NI C0201 C020...

Page 6: ...C165 4 7uF C0603 C24 0 1uF C0402 17 LX 18 19 AVDD33_BUCK LX AVSS33_BUCK ANTSEL0 ANTSEL2 ANTSEL3 41 40 ANTSEL2 39 Pin 48 WF0G_PA_3V3 3 3V Buck_1V3_OUT L10 C37 10pF C38 NI 10pF C70 2 2uF R32 10K ohm R0...

Page 7: ...S Channel CH1 to CH13 Data rate 1 2 5 5 11Mbps TX Characteristics Min Typ Max Unit Remar k 1 Power Levels Calibrated 2 Spectrum Mask Target Power 1 fc 11MHz to 22MHz 30 dBr 2 fc 22MHz 50 dBr 3 Constel...

Page 8: ...at fc 20MHz 28 dBr 3 at fc 30MHz 40 dBr 3 Constellation Error EVM Target Power 1 6Mbps 5 dB 2 9Mbps 8 dB 3 12Mbps 10 dB 4 18Mbps 13 dB 5 24Mbps 16 dB 6 36Mbps 19 dB 7 48Mbps 22 dB 8 54Mbps 25 dB 4 Fre...

Page 9: ...8 dBr 3 at fc 30MHz 45 dBr 3 Constellation Error EVM Target Power 1 MCS0 5 dB 2 MCS1 10 dB 3 MCS2 13 dB 4 MCS3 16 dB 5 MCS4 19 dB 6 MCS5 22 dB 7 MCS6 25 dB 8 MCS7 28 dB 4 Frequency Error 1 IEEE802 11n...

Page 10: ...c 21MHz 20 dBr 2 at fc 40MHz 28 dBr 3 at fc 60MHz 45 dBr 3 Constellation Error EVM Target Power 1 MCS0 5 dB 2 MCS1 10 dB 3 MCS2 13 dB 4 MCS3 16 dB 5 MCS4 19 dB 6 MCS5 22 dB 7 MCS6 25 dB 8 MCS7 28 dB 4...

Page 11: ...Hz 120MHz 40 dB r 3 Constellation Error EVM Target Power 1 MCS0 5 dB 2 MCS1 10 dB 3 MCS2 13 dB 4 MCS3 16 dB 5 MCS4 19 dB 6 MCS5 22 dB 7 MCS6 25 dB 8 MCS7 27 dB 9 MCS8 30 dB 10 MCS9 32 dB 4 Frequency E...

Page 12: ...Max Unit TX Characteristics 2 Modulation Characteristics 1 Delta f1 Avg 157 kHz 2 Delta f2max For at least 99 9 of all Delta f2max 121 kHz 3 Delta f2 Delta f1 0 85 kHz 3 Initial Carrier Frequency Tole...

Page 13: ...DQPSK 8PSK Min Typ Max Unit TX Characteristics 1 4 DQPSK 2 8PSK 2 Frequency Stability kHz 1 Omega i 4 kHz 2 Omega 0 4 kHz 3 Omega 0 Omega i 4 3 Modulation Accuracy 1 RMS DEVM 4 DQPSK 9 8PSK 9 2 Peak D...

Page 14: ...Output power at NOC 4 dBm 2 Modulation Characteristics 1 Delta f1 Avg 225 275 kHz 2 Delta f2max For at least 99 9 of all Delta f2max 185 kHz 3 Delta f2 Delta f1 0 8 0 94 Hz Hz 3 Carrier frequency off...

Page 15: ...ep mode radio off 1 5 Bluetooth TX 9dBm 42 Bluetooth RX 21 Bluetooth SCO connection HV3 packets sniff mode scan page scan interval 1 28sec inquiry scan interval 2 56s sniff interval 500ms 21 Bluetooth...

Page 16: ...page 18 of BL M7668BU4 IEEE 802 11a b g n ac 2T2R USB WIFI Module BT2 1 EDR 4 2 5 0 Module BT2 1 EDR 4 2 5 0Module BT2 1 EDR 4 2 5 0 Packaging Information PDF pdfFactory Pro www fineprint cn...

Page 17: ...minimum distance 0cm 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...

Page 18: ...smitter 2AL6KBL M7668BU4 has 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...

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