ATA5425-PLSW datasheet(70/100 Pages) ATMEL

70 / 100 page

4841D–WIRE–10/07

ATA5423/ATA5425/ATA5428/ATA5429

2.6

Maximum frequency

offset in FSK mode

Maximum frequency

difference of fRF

between receiver and

transmitter in FSK

mode (fRF is the center

frequency of the FSK

signal with

fDEV = ±16 kHz)

(4)

∆f

OFFSET

–58

+58

kHz

2.7

Supported FSK frequency

deviation

With up to 2 dB

loss of sensitivity.

Note that the tolerable

frequency offset is for

DEV = ±22 kHz, 6 kHz

lower than for

fDEV = ±16 kHz hence

∆f

OFFSET ≤ ±52 kHz

(4)

DEV

±14

±16

±22

kHz

2.8

System noise figure

RF = 315 MHz

(4)

6.0

RF = 345 MHz

(4)

6.2

RF = 433.92 MHz

(4)

7.0

fRF = 868.3 MHz

(4)

9.7

fRF = 915 MHz

(4)

10.3

2.9

Intermediate frequency

fRF = 315 MHz

fIF

227

kHz

fRF = 345 MHz

fIF

235

kHz

fRF = 433.92 MHz

fIF

223

kHz

fRF = 868.3 MHz

fIF

226

kHz

fRF = 915 MHz

fIF

238

kHz

2.10 System bandwidth

This value is for

information only!

Note that for crystal and

system frequency offset

calculations,

∆f

OFFSET

must be used.

(4)

SBW

185

kHz

2.11

System outband

2nd

-order input intercept

point with respect to fIF

∆f

meas1 = 1,800 MHz

∆f

meas2 = 2,026 MHz

fIF = ∆fmeas2 – ∆fmeas1

(4)

IIP2

+50

dBm

12. Electrical Characteristics: General (Continued)

This device is manufactured with an industrial (not automotive) grade process and process controls. Although this device may

meet certain automotive grade criteria in performance, Atmel can not recommend that this device be used in any automotive

application.

All parameters refer to GND and are valid for Tamb = 25°C, VVS1 = VVS2 = 3.0V (1-battery application), VVS2 = 6.0V (2-battery application)

and VVS2 = VVAUX = 5.0V (Base-station Application). Typical values are given at fRF = 433.92 MHz unless otherwise specified. Details

about current consumption, timing and digital pin properties can be found in the specific sections of the “Electrical Characteristics”.

No. Parameters

Test Conditions

Pin(1)

Symbol

Min.

Typ.

Max.

Unit

Type*

*) Type means: A = 100% tested, B = 100% correlation tested, C = Characterized on samples, D = Design parameter

Note:

1. Pin numbers in brackets mean they were measured with RF_IN matched to 50

Ω according to Figure 3-1 on page 11 with

component values according to Table 3-2 on page 12 and RF_OUT matched to 50

Ω according to Figure 3-10 on page 21

with component values according to Table 3-7 on page 22.

ATA5425-PLSW Datasheet(PDF) 70 Page - ATMEL Corporation

ATA5425-PLSW Datasheet(HTML) 70 Page - ATMEL Corporation

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