User's Manual

TiWi-uB1 Module
DATASHEET
The information in this document is subject to change without notice.
330-0132 Copyright © 2013 LS Research, LLC Page 8 of 22
Current Consumption
Measured on LSR TiWiuB1 EM reference design with TA = 25°C, VDD = 3 V, fc = 2440 MHz. LEDs disabled, DC to DC disabled
Mode
Description
Average Current
Unit
Icore Core current
consumption
RX mode, standard mode, no peripherals active,
low MCU activity
17.9
mA
RX mode, high-gain mode, no peripherals active,
low MCU activity
20.2
TX mode, –20 dBm output power, no peripherals
active, low MCU activity
16.8
TX mode, 0 dBm output power, no peripherals
active, low MCU activity
18.2
Power mode 1. Digital regulator on; 16-MHz
RCOSC and 32-MHz crystal oscillator off; 32.768-
kHz XOSC, POR, BOD and sleep timer active;
RAM and register retention
270
µA
Power mode 2. Digital regulator off; 16-MHz
RCOSC and 32-MHz crystal oscillator off; 32.768-
kHz XOSC, POR, and sleep timer active; RAM
and register retention
1
Power mode 3. Digital regulator off; no clocks;
POR active; 0.5 RAM and register retention
0.5
Low MCU activity: 32-MHz XOSC running. No
radio or peripherals. Limited flash access, no
RAM access.
6.7
mA
I peri Peripheral current
consumption
*Adds to core current Icore
for each peripheral unit
activated
Timer 1. Timer running, 32-MHz XOSC used
90
µA
Timer 2. Timer running, 32-MHz XOSC used
90
Timer 3. Timer running, 32-MHz XOSC used
60
Timer 4. Timer running, 32-MHz XOSC used
70
Sleep timer, including 32.753-kHz RCOSC
0.6
ADC, when converting
1.2
mA
Table 7 Bluetooth General DC Characteristics
CURRENT CONSUMPTION WITH DC to DC Converter
Measured on LSR TiWiuB1 EM reference design with TA = 25°C, VDD = 3 V, fc = 2440 MHz. LEDs disabled, DC to DC
Enabled 1 Mbsp, GFSK, 250-kHz deviation, Bluetooth™ low energy Mode, 1% BER
Mode
Description
Average Current
Unit
Current consumption
RX mode, standard mode, no peripherals active,
low MCU activity
14.7
mA
RX mode, high-gain mode, no peripherals active,
low MCU activity
16.7
TX mode, –20 dBm output power, no peripherals
active, low MCU activity
13.1
TX mode, 0 dBm output power, no peripherals
active, low MCU activity
14.3
Table 8 Bluetooth Power Consumption