CC2480 datasheet(10/48 Pages) TI

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CC2480

Table 6: RF Transmit Parameters

Parameter

Min

Typ

Max

Unit

Condition/Note

Nominal output

power

dBm

Delivered to a single ended 50

Ω load through a balun.

[1] requires minimum –3 dBm

Harmonics

nd harmonic

rd harmonic

th harmonic

-50.7

-55.8

-54.2

-53.4

dBm

Measurement conducted with 100 kHz resolution bandwidth on

spectrum analyzer. Output Delivered to a single ended 50

Ω load

through a balun.

Spurious emission

30 - 1000 MHz

1– 12.75 GHz

1.8 – 1.9 GHz

5.15 – 5.3 GHz

-47

-43

-58

-56

dBm

Maximum output power.

Texas Instruments

CC2480 EM reference design complies with

EN 300 328, EN 300 440, FCC CFR47 Part 15 and ARIB STD-

T-66.

Transmit on 2480MHz under FCC is supported by duty-cycling

The peak conducted spurious emission is -47 dBm @ 192 MHz

which is in an EN 300 440 restricted band limited to -54 dBm. All

radiated spurious emissions are within the limits of

ETSI/FCC/ARIB. Conducted spurious emission (CSE) can be

reduced with a simple band pass filter connected between

matching network and RF connector (1.8 pF in parallel with 1.6

nH reduces the CSE by 20 dB), this filter must be connected to

good RF ground.

EVM

Measured as defined by [1]

[1] requires max. 35 %

Optimum load

impedance

+ j164

Ω

Differential impedance as seen from the RF-port (RF_P and

RF_N

) towards the antenna

5.4

32 MHz Crystal Oscillator

Measured on Texas Instruments

CC2480 EM reference design with TA=25°C and VDD=3.0V

unless stated otherwise.

Table 7: 32 MHz Crystal Oscillator Parameters

Parameter

Min

Typ

Max

Unit

Condition/Note

Crystal frequency

MHz

Crystal frequency

accuracy

requirement

- 40

ppm

Including aging and temperature dependency, as specified by [1]

ESR

Ω

Simulated over operating conditions

1.9

Simulated over operating conditions

Start-up time

212

µs

5.5

32.768 kHz Crystal Oscillator

Measured on Texas Instruments

CC2480 EM reference design with TA=25°C and VDD=3.0V

unless stated otherwise.

2 This is for 2440MHz

CC2480 Data Sheet SWRS074A

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