User's Manual

ATSAMB11-ZR210CA DESIGN-IN GUIDELINES
ATSAMB11-ZR210CA module is based on Microchip Atmel’s industry-leading low-power 2.4GHz
Bluetooth Low Energy (BLE) ATSAMB11-XR2100A SiP (System in a Package).
The ATSAMB11-XR2100A is an ultra-low power Bluetooth SMART (BLE 4.1) System in a Package with
Integrated MCU, Transceiver, Modem, MAC, PA, TR Switch, Power Management Unit (PMU), and a
26MHz crystal. It is a stand-alone Cortex-M0 application processor with embedded Flash memory and
BLE connectivity.
The qualified Bluetooth Smart protocol stack is stored in dedicated ROM, the firmware includes L2CAP
service layer protocols, Security Manager, Attribute protocol (ATT), Generic Attribute Profile (GATT) and
the Generic Access Profile (GAP). Additionally, application profiles such as Proximity, Thermometer,
Heart Rate, Blood Pressure, and many others are supported and included in the protocol stack.
The ATSAMB11-ZR210CA module contains the ATSAMB11-XR2100A SiP, a 2.4 – 2.5GHz antenna, RF
matching. The following connections are required for proper operation:
• Power supply, minimum 2.3V, typically 3.6V, maximum 4.3V, to power the BLE module (VBAT)
• Power supply, minimum 2.3V, typically 3.3V, maximum 3.6V for VDDIO. Note that VBAT must
be greater than or equal to VDDIO
• Logic control for Chip_En signal
• A 32.768KHz real time clock or crystal
When the module is placed in the system, a provision for the antenna must be made. There should be
nothing under the portion of the module which contains the antenna. This means the antenna should
not be placed directly on top of the motherboard PCB. This can be accomplished by, for example,
placing the module at the edge of the board such that the antenna extends beyond the board edge by
3.0mm. Alternatively, a cut out in the motherboard can be provided under the antenna. The cutout
should be at least 7.5mm x 3.0mm. Ground vias should be placed all around the perimeter of the
cutout. No large component should be placed near the antenna.
The module is too small (7.5 x 10.5mm) to put the FCC ID on the module and to be readable. Microchip
has applied for the FCC ID to be added to the Datasheet and to the shipping package instead of the
module. In addition, the product User Manual must contain the following statement:
“Contains Transmitter Module FCC ID: 2ADHKBZR or Contains FCC ID: 2ADHKBZR
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”.