Data Sheet

LC840PA
Datasheet
https://www.lairdconnect.com
8
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Categories/Feature
Implementation
I2S
One inter-IC sound interface
PDM
One pulse density modulation interface
Optional (External to the LC840PA module)
External 32.768 kHz crystal
For customer use, connect +/-20 ppm accuracy crystal for more accurate protocol
timing. Crystal is required for IEEE 802.15.4 operation.
Bluetooth LE Profiles
Services supported
▪ Central mode
▪ Peripheral mode
▪ Custom and adopted profiles
Bluetooth LE Programmability
smartBASIC
▪ FW upgrade via JTAG or UART
▪ Application download via UART or via over-the-air (if SIO_02 pin is pulled high
externally)
Bluetooth LE Operating Modes
smartBASIC
Self-contained Run mode
▪ Selected by nAutoRun pin status: LOW (0V).
▪ Then runs $autorun$ (smartBASIC application script) if it exists.
Interactive/Development mode
▪ HIGH (VDD).
▪ Then runs via at+run (and file name of smartBASIC application script).
IEEE 802.15.4-2006 250kbps PHY Operating Modes
Self-Contained Run mode
▪ Dedicated ProFLEX compatible operation
▪ Host interface via serial port
Supply Voltage
Supply (VDD or VDD_HV) options
▪ Normal voltage mode VDD 3.0- 3.6 V – Internal DCDC converter or LDO
(See Note 5 in the Module Specification Notes)
OR
▪ High voltage mode VDD_HV 3.0V-5.5V Internal DCDC converter or LDO
(See Note 5 in the Module Specification Notes)
Power Consumption
Active Modes Peak Current (for
maximum Tx power +18 dBm)
– Radio only
102.2 mA peak Tx (with DCDC)
Active Modes Peak Current (for
Tx power -26 dBm) – Radio only
18.5 mA peak Tx (with DCDC)
Active Modes Average Current
Depends on many factors, see Power Consumption
Ultra-low Power Modes
Standby Doze (System ON Idle)
5.9 uA typical
Deep Sleep (System OFF)
2.0 uA
Antenna Options
Internal
Printed PCB monopole antenna – on-board
453-00087 variant
External
▪ Dipole antenna (with IPEX connector)
▪ Dipole PCB antenna (with IPEX connector)
▪ Connection via IPEX MH4 – 453-00088 variant
See the Antenna Information sections for FCC, ISED, AS/NZS, and Korea