BLUENRG-LP datasheet(40/72 Pages) STMICROELECTRONICS

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Symbol

Parameter

Test conditions

Min. Typ.

Max.

Unit

ΔF

Frequency deviation(1)

250

kHz

Δf1

Frequency deviation average(1)

450

550

kHz

CFdev

Center frequency deviation(1)

During the packet and including

both initial frequency offset and drift

±150

kHz

Δfa

Frequency deviation Δf2 (average) / Δf1

(average)(1)

0.80

Rgfsk

On-air data rate(1)

Mbps

STacc

Symbol time accuracy(1)

±50

ppm

MOD

Modulation scheme

GFSK

Bandwidth-bit period product

0.5

Mindex

Modulation index(1)

0.45

0.5

0.55

PMAX

Maximum output

At antenna connector, VSMPS =

1.9 V, LDO code

dBm

PMIN

Minimum output

At antenna connector

-20

dBm

PRFC

RF power accuracy

@ 27 °C

±1.5

All temperatures

±2.5

1. Tested according to Bluetooth SIG radio frequency physical layer (RF PHY) test suite (not tested in production).

5.3.4

RF transmitter characteristics

All performance data are referred to a 50 Ω antenna connector, via reference design.

Table 16. Bluetooth Low Energy RF transmitter characteristics at 1 Mbps not coded

Symbol

Parameter

Test conditions

Min. Typ. Max.

Unit

PBW1M

6 dB bandwidth for modulated

carrier

Using resolution bandwidth of 100 kHz

500

kHz

PRF1, 1 Ms/s

In-band emission at ±2 MHz(1)

Using resolution bandwidth of 100 kHz and

average detector

-20

dBm

PRF2, 1 Ms/s

In-band emission at ±[3+n]MHz,

where n=0,1,2..(1)

Using resolution bandwidth of 100 kHz and

average detector

-30

dBm

PSPUR

Spurious emission

Harmonics included. Using resolution

bandwidth of 1 MHz and average detector

-41

dBm

Freqdrift

Frequency drift(1)

Integration interval #n – integration interval

#0, where n=2,3,4..k

-50

+50

kHz

IFreqdrift

Initial carrier frequency drift(1)

Integration interval #1 – integration interval

-23

+23

kHz

IntFreqdrift

Intermediate carrier frequency

drift(1)

Integration interval #n – integration interval

#(n-5), where n=6,7,8..k

-20

+20

kHz

Drift Rate max

Maximum drift rate(1)

Between any two 10-bit groups separated by

50 µs

-20

+20

kHz/50

µs

ZRF1

Optimum RF load

(impedance at RF1 pin)

@ 2440 MHz

Ω

1. Tested according to Bluetooth SIG radio frequency physical layer (RF PHY) test suite (not tested in production).

BlueNRG-LP

Operating conditions

DS13282 - Rev 2

page 40/72

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