ATA5425-PLSW datasheet(81/100 Pages) ATMEL

81 / 100 page

4841D–WIRE–10/07

ATA5423/ATA5425/ATA5428/ATA5429

5.6

Phase noise at 10M

RX mode

Noise floor PLL

RX10M

–135

dBC/Hz

5.7

Loop bandwidth PLL

TX mode

Frequency where the

absolute value loop

gain is equal to 1

Loop_PLL

kHz

5.8

Frequency deviation

TX mode

RF = 315 MHz

fRF = 345 MHz

RF = 433.92 MHz

RF = 868.3 MHz

fRF = 915 MHz

DEV_TX

±15.54

±17.02

±16.17

±16.37

±17.25

kHz

5.9

Frequency resolution

fRF = 315 MHz

RF = 345 MHz

RF = 433.92 MHz

fRF = 868.3 MHz

RF = 915 MHz

4, 10

∆f

Step_PLL

777.1

851.1

808.9

818.6

862.6

5.10 FSK modulation rate

This correspond to

20 Kbit/s Manchester

coding and 40 Kbit/s

NRZ coding

Data_FSK

120

kHz

RX/TX Switch

6.1

Impedance RX mode

RX mode, pin 38 with

short connection to

GND, fRF = 0 Hz (DC)

ZSwitch_RX

23000

Ω

fRF = 315 MHz

RF = 345 MHz

fRF = 433.92 MHz

fRF = 868.3 MHz

RF = 915 MHz

ZSwitch_RX

(11.3 – j214)

(11.1 – j181)

(10.3 – j153)

(8.9 – j73)

(9 – j65)

Ω

6.2

Impedance TX mode

TX mode, pin 38 with

short connection to

GND, fRF = 0 Hz (DC)

ZSwitch_TX

Ω

fRF = 315 MHz

RF = 345 MHz

fRF = 433.92 MHz

fRF = 868.3 MHz

RF = 915 MHz

ZSwitch_RX

(4.8 + j3.2)

(4.7 + j3.4)

(4.5 + j4.3)

(5 + j9)

(5 + j9.2)

Ω

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) 81 Page - ATMEL Corporation

ATA5425-PLSW Datasheet(HTML) 81 Page - ATMEL Corporation

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