Data Sheet

Page 49
nRF51822 Product Specification v3.1
8.5 Radio transceiver
8.5.1 General radio characteristics
Table 35 General radio characteristics
8.5.2 Radio current consumption with DC/DC disabled
Table 36 Radio current consumption with DC/DC disabled (NOC, VDD = 3 V)
Symbol Description Note Min. Typ. Max. Units
Test
level
f
OP
Operating frequencies.
1 MHz channel
spacing.
2400 2483 MHz N/A
PLL
res
PLL programming resolution. 1 MHz N/A
∆f250
Frequency deviation at 250 kbps. ±170 kHz 2
∆f
1M
Frequency deviation at 1 Mbps. ±170 kHz 2
∆f
2M
Frequency deviation at 2 Mbps. ±320 kHz 2
∆f
BLE
Frequency deviation at BLE. ±225 ±250 ±275 kHz 4
bps
FSK
On-air data rate. 250 2000 kbps N/A
Symbol Description Note Min. Typ. Max. Units
Test
level
I
TX,+4dBm
TX only run current at P
OUT
= +4 dBm.
1
1. Valid for data rates 250 kbps, 1 Mbps, and 2 Mbps.
16 mA 4
I
TX,0dBm
TX only run current at P
OUT
= 0 dBm.
1
10.5 mA 4
I
TX,-4dBm
TX only run current at P
OUT
= -4 dBm.
1
8mA2
I
TX,-8dBm
TX only run current at P
OUT
= -8 dBm.
1
7 mA 2
I
TX,-12dBm
TX only run current at P
OUT
= -12 dBm.
1
6.5 mA 2
I
TX,-16dBm
TX only run current at P
OUT
= -16 dBm.
1
6 mA 2
I
TX,-20dBm
TX only run current at P
OUT
= -20 dBm.
1
5.5 mA 2
I
TX,-30dBm
TX only run current at P
OUT
= -30 dBm.
1
5.5 mA 2
I
START,TX
TX startup current.
2
2. Average current consumption (at 0 dBm TX output power) for TX startup (130 μs), and when changing mode from RX to
TX (130 μs).
7mA1
I
RX,250
RX only run current at 250 kbps. 12.6 mA 1
I
RX,1M
RX only run current at 1 Mbps. 13 mA 4
I
RX,2M
RX only run current at 2 Mbps. 13.4 mA 1
I
START,RX
RX startup current.
3
3. Average current consumption for RX startup (130 μs), and when changing mode from TX to RX (130 μs).
8.7 mA 1