EM357-RTR datasheet(20/240 Pages) ETC2

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EM351 / EM357

2.7

RF Electrical Characteristics

2.7.1

Receive

Table 2-7 lists the key parameters of the integrated IEEE 802.15.4-2003 receiver on the EM35x.

Note:

Receive measurements were collected with Ember’s EM35x Ceramic Balun Reference Design (Version

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

temperature (25°C). The Min and Max numbers were measured over process corners at room temperature

Table 2-7. Receive Characteristics

Parameter

Test Conditions

Min.

Typ.

Max.

Unit

Frequency range

2400

2500

MHz

Sensitivity (boost mode)

1% PER, 20 byte packet defined by IEEE

802.15.4-2003

-102

-96

dBm

Sensitivity

1% PER, 20 byte packet defined by IEEE

802.15.4-2003

-100

-94

dBm

High-side adjacent channel rejection

IEEE 802.15.4-2003 signal at -82 dBm

Low-side adjacent channel rejection

IEEE 802.15.4-2003 signal at -82 dBm

2nd high-side adjacent channel rejection

IEEE 802.15.4-2003 signal at -82 dBm

2nd low-side adjacent channel rejection

IEEE 802.15.4-2003 signal at -82 dBm

High-side adjacent channel rejection

Filtered IEEE 802.15.4-2003 signal at -82 dBm

Low-side adjacent channel rejection

Filtered IEEE 802.15.4-2003 signal at -82 dBm

2nd high-side adjacent channel rejection

Filtered IEEE 802.15.4-2003 signal at -82 dBm

2nd low-side adjacent channel rejection

Filtered IEEE 802.15.4-2003 signal at -82 dBm

High-side adjacent channel rejection

CW signal at -82 dBm

Low-side adjacent channel rejection

CW signal at -82 dBm

2nd high-side adjacent channel rejection

CW signal at -82 dBm

2nd low-side adjacent channel rejection

CW signal at -82 dBm

Channel rejection for all other channels

IEEE 802.15.4-2003 signal at -82 dBm

802.11g rejection centered at +12 MHz or

-13 MHz

IEEE 802.15.4-2003 signal at -82 dBm

Maximum input signal level for correct

operation

dBm

Co-channel rejection

IEEE 802.15.4-2003 signal at -82 dBm

-6

dBc

Relative frequency error

(2x40 ppm required by IEEE 802.15.4-2003)

-120

+120

ppm

Relative timing error

(2x40 ppm required by IEEE 802.15.4-2003)

-120

+120

ppm

2-7

120-035X-000D

Preliminary

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