CC1070-RTY1 datasheet(6/57 Pages) TI

6 / 57 page

CC1070

SWRS043

Page 6 of 58

4.1 RF Transmit Section

Parameter

Min.

Typ.

Max.

Unit

Condition / Note

Transmit data rate

0.45

153.6

kBaud

The data rate is programmable.

See section 10 on page 22 for

details.

NRZ or Manchester encoding can

be used. 153.6 kBaud equals

153.6 kbps using NRZ coding

and 76.8 kbps using Manchester

coding. See section 9.2 on page

20 for details.

Binary FSK frequency separation

108

216

kHz

in 402 - 470 MHz range

in 804 - 940 MHz range

108/216 kHz is the maximum

guaranteed separation at 1.84

MHz reference frequency. Larger

separations can be achieved at

higher reference frequencies.

Output power

433 MHz

868 MHz

-20 to +10

-20 to +8

dBm

Delivered to 50

Ω single-ended

load. The output power is

programmable and should not be

programmed to exceed +10/+8

dBm at 433/868 MHz under any

operating conditions. See section

13 on page 26 for details.

Output power tolerance

-4

At maximum output power

At 2.3 V, +105

At 3.6 V, -40

Harmonics, radiated CW

nd harmonic, 433 MHz, +10 dBm

rd harmonic, 433 MHz, +10 dBm

nd harmonic, 868 MHz, +8 dBm

rd harmonic, 868 MHz, +8 dBm

-50

-60

-50

-57

dBc

Harmonics are measured as

EIRP values according to EN 300

220. The antenna (SMAFF-433

and SMAFF-868 from R.W.

Badland) plays a part in

attenuating the harmonics.

Adjacent channel power (GFSK)

12.5 kHz channel spacing, 433 MHz

25 kHz channel spacing, 868 MHz

-47

-50

dBc

For 12.5 kHz channel spacing

ACP is measured in a ±4.25 kHz

bandwidth at ±12.5 kHz offset.

Modulation: 2.4 kBaud NRZ PN9

sequence, ±2.025 kHz frequency

deviation.

For 25 kHz channel spacing ACP

is measured in a ±8.5 kHz

bandwidth at ±25 kHz offset.

Modulation: 4.8 kBaud NRZ PN9

sequence, ±2.475 kHz frequency

deviation.

Occupied bandwidth (99.5%,GFSK)

12.5 kHz channel spacing, 433 MHz

25 kHz channel spacing, 868 MHz

kHz

Bandwidth for 99.5% of total

average power.

Modulation for 12.5 channel

spacing: 2.4 kBaud NRZ PN9

sequence, ±2.025 kHz frequency

deviation.

Modulation for 25 kHz channel

spacing: 4.8 kBaud NRZ PN9

sequence, ±2.475 kHz frequency

deviation.

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