TC35679FSG-002

2018-01-17

36

5.6. RF Characteristics

The following conditions are applicable unless otherwise specified.



Ta = 25°C



VBAT = 3.0 V



fx’tal = 26 MHz (Frequency accuracy is adjusted to ±2 ppm at normal temperature)



PAOUT= 0 dBm

Table 5-7, Table 5-8 shows RF receiving characteristics and RF transmitting characteristics based on Bluetooth® Core Spec. V4.2

low energy.

About some the characteristics data here are design values.

Table 5-7 RF Characteristics

Test Item

Packet

bit

ch.

Condition

Spec.

Unit

Min

Typ.

Max

Output Power

255

octets

PRBS9

0,12,

19,39

peak

—

—

Pavg+

3 dB

dBm

average

—

0

—

In-band Emissions

255

octets

PRBS9

0,12,

19,39

-5

MHz

—

-60

-30

dBm

-4

MHz

—

-55

-30

-3

MHz

—

-53

-30

-2

MHz

—

-48

-20

2

MHz

—

-50

-20

3

MHz

—

-53

-30

4

MHz

—

-56

-30

5

MHz

—

-60

-30

Modulation

Characteristics

255

octets

11110000

0,12,

19,39

Δf1avg (11110000)

225

249.3

275

kHz

10101010

Δf2max (99.9 %)

99.9

100

—

%

—

Δf2avg /Δf1avg

0.8

0.90

—

Ratio

Carrier frequency

offset (CFO)

255

octets

10101010

0,12,

19,39

average

—

4.4

—

kHz

worst

-150

—

150

Carrier frequency

drift

255

octets

10101010

Absolute maximum

—

4.9

50

kHz

Carrier frequency

drift Rate

255

octets

10101010

Absolute maximum

—

4.9

20

kHz/50 μs