Bluegiga Technologies Oy

Page 12 of 29

3.4 Current Consumption

Power mode

hardware.xml

Min

Typ

Max

Unit

Transmit

<txpower power = ”1”/>

<slow clock enable = ”true”/>

25

mA

<txpower power = ”9”/>

<slow clock enable = ”true”/>

36

mA

<txpower power = ”9”/>

<slow clock enable = ”false”/>

38

mA

Receive

<slow clock enable = ”true”/>

28

mA

<slow clock enabl

e = ”false”/>

33

mA

Power mode 1

2.7

mA

Power mode 2

1.3

µA

Power mode 3

0.5

µA

Figure 2: BLE121LR TX peak current as a function of the setting in the HW configuration file

Figure 3: BLE121LR TX peak current as a function of hardware.xml TXP setting (Example:

<txpower

power="9" bias="5" />)