EM342-RTR datasheet(18/143 Pages) SILABS

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EM342

Rev 1.0

2.7.2. Transmit

Table 2.9 lists the key parameters of the integrated IEEE 802.15.4-2003 transmitter on the EM342.

Transmit measurements were collected with the Silicon Labs EM342 Ceramic Balun Reference Design (Version

A0) at 2440 MHz. The Typical number indicates one standard deviation below the mean, measured at room

temperature (25

C). The Min and Max numbers were measured over process corners at room temperature. In

terms of impedance, this reference design presents a 3n3 inductor in parallel with a 100:50 Ω balun to the RF pins.

Table 2.9. Transmit Characteristics

Parameter

Test Condition

Min

Typ

Max

Unit

Maximum output power



(boost mode)

At highest boost mode power setting (+8)

—

dBm

Maximum output power

At highest normal mode power setting (+3)

—

dBm

Minimum output power

At lowest power setting

—

–55

—

dBm

Error vector magnitude



(Offset-EVM)

As defined by IEEE 802.15.4-2003,

which sets a 35% maximum

—

Carrier frequency error

–40

—

+40

ppm

PSD mask relative

3.5 MHz away

–20

—

PSD mask absolute

3.5 MHz away

–30

—

dBm

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