Data Sheet

LC840PA
Datasheet
https://www.lairdconnect.com
9
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Categories/Feature
Implementation
Physical
Dimensions
22.0 mm x 10 mm x 2.2 mm
Pad Pitch – 0.8 mm
Pad Type – Two rows of pads
Weight
<1 gram
Environmental
Operating
-40 ˚C to +85 ˚C
Storage
-40 ˚C to +85 ˚C
Miscellaneous
Lead Free
Lead-free and RoHS compliant
Warranty
One-year warranty
Development Tools
Development Kit
BL654PA Development kit per module SKU (455-00022 and 455-00023) and free
software tools
Approvals
Bluetooth®
Full Bluetooth SIG Declaration ID
FCC/ISED
All LC840PA types (IEEE 802.15.4-2006 250kbps operation)
KC/AS/NZS
BL654PA Bluetooth LE operation only
Module Specification Notes:
Note 1
The LC840PA module PROFLEX FW only supports IEEE 802.15.4-2006 250 kbps operation.
The LC840PA module IEEE 802.15.4-2006 250 kbps certifications for FCC and ISED are for HW + Laird factory
firmware only. For customer implemented firmware, certifications are for HW only. It is the customer’s
responsibility to follow the mandatory conditions highlighted in this Note 1 and Note 2 in the FW that the customer
implements.
When used in IEEE 802.15.4-2006 250 kbps mode, channel 26 (2480 MHz) is unavailable for use due to the
presence of out of band emissions. All other IEEE 802.15.4-2006 250 kbps channels (11-25) may be used up to
the maximum +18 dBm conducted output power provided the maximum RF TX duty cycle per frequency is not
exceeded (see Note 2).
As module Tx power is controlled by the nRF52840 RF drive level into the FEM, the nRF52840 Tx RF drive level
must be limited to a maximum drive of -4 dBm for IEEE 802.15.4-2006 250 kbps channels 11-25. Exceeding this
drive level results in damage to the LC840PA and cause the LC840PA to fail regulatory Tx power certifications.
Note 2
The LC840PA module IEEE 802.15.4-2006 250 kbps certifications for FCC and ISED are for HW + Laird factory
firmware only. For customer implemented firmware, certifications are for HW only. It is the customer’s
responsibility to follow the mandatory conditions highlighted in this Note 1 and Note 2 in the FW that the customer
implements.
When used in IEEE 802.15.4-2006 250 kbps mode, in addition to the maximum conducted power limits, a
maximum RF TX operational duty cycle of 58% or less (per frequency) must always be maintained, under all
operating modes and power levels, to remain compliant with harmonic emission regulatory limits FCC (47 CFR
15.247) and ISED (RSS-247). This RF TX duty cycle limit is measured during any 100 mS period of operation.
Note 3
DSR, DTR, RI, and DCD can be implemented in the smartBASIC application.
Note 4
With I2C interface selected, pull-up resistors on I2C SDA and I2C SCL must be connected externally as per I2C
standard.