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113990583 Seeed Studio
Version: J Issued Date: 2021/05/28 Approval Sheet ( ) (Product) Bluetooth Low Energy Module (Solution) Nordic nRF52840 aQFN Package (Model No.) MDBT50Q 1MV2 (Chip Antenna) MDBT50Q P1MV2 (PCB Antenna) (Part No.) see 4.3 Order Code Working distance (in Meters) Operating Model 125 Kbps 1 Mbps 2 Mbps Temperature MDBT50Q-1MV2 over 550 over 300 over 150 -40 ~ 85 MDBT50Q-P1MV2 over 450 up to 250 up to 120 -40 ~ 85 Working range is tested in open space Index 1. Overall Introduction ...................................................................................................... 4 1.1. Application ............................................................................................................ 4 1.2. Features ............................................................................................................... 5 2. Product Dimension ....................................................................................................... 7 2.1. PCB Dimensions & Pin Indication ......................................................................... 7 2.2. Recommended Layout of Solder Pad ................................................................... 9 2.3. RF Layout Suggestion (aka Keep-Out Area) ...................................................... 13 2.4. Footprint & Design Guide ................................................................................... 15 2.5. Pin Assignment ................................................................................................... 16 2.6. GPIO Located Near the Radio ............................................................................ 19 3. Main Chip Solution ...................................................................................................... 19 4. Shipment Packaging Information .............................................................................. 20 4.1. Marking on Metal Shield ..................................................................................... 21 4.2. Packaging Info .................................................................................................... 21 4.3. Order Code ......................................................................................................... 23 5. Specification ................................................................................................................ 24 5.1. Absolute Maximum Ratings ................................................................................ 24 5.2. Operating Conditions .......................................................................................... 24 5.3. Electrical Specifications ...................................................................................... 25 6. Block Diagram ............................................................................................................. 31 7. Antenna ........................................................................................................................ 32 7.1. MDBT50Q ........................................................................................................... 32 7.2. MDBT50Q-P ....................................................................................................... 34 8. Reference Circuit ......................................................................................................... 36 8.1. Reg0 DC/DC Enabled ......................................................................................... 37 8.2. Reg0 LDO Mode ................................................................................................. 38 8.3. Reg0 DC/DC and LDO Mode Disabled............................................................... 39 8.4. USB Disabled ..................................................................................................... 40 9. Certification ................................................................................................................. 41 9.1. Declaration ID ..................................................................................................... 41 9.2. FCC Certificate (USA) ........................................................................................ 43 9.3. TELEC Certificate (Japan) .................................................................................. 44 9.4. NCC Certificate (Taiwan) .................................................................................... 46