FSK datasheet(9/13 Pages) ATMEL

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4546F–RKE–12/08

T5750

Figure 4-5.

ESD Protection Circuit

CLK

GND

PA_ENABLE

XTAL

ANT2

ENABLE

ANT1

Absolute Maximum Ratings

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress rating

only and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of this

specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.

Parameters

Symbol

Minimum

Maximum

Unit

Supply voltage

Power dissipation

tot

100

Junction temperature

150

°C

Storage temperature

stg

–55

125

°C

Ambient temperature

amb

–55

125

°C

Input voltage

VmaxPA_ENABLE

–0.3

(VS + 0.3)

(1)

Note:

1. If VS + 0.3 is higher than 3.7V, the maximum voltage will be reduced to 3.7V.

Thermal Resistance

Parameters

Symbol

Value

Unit

Junction ambient

RthJA

170

K/W

Electrical Characteristics

VS = 2.0V to 4.0V, Tamb = –40°C to 125°C unless otherwise specified.

Typical values are given at VS = 3.0V and Tamb = 25°C. All parameters are referred to GND (pin 7).

Parameters

Test Conditions

Symbol

Min.

Typ.

Max.

Unit

Supply current

Power down,

ENABLE < 0.25V, –40°C to 85°C

VPA_ENABLE < 0.25V, –85°C to +125°C

VPA_ENABLE < 0.25V, 25°C

(100% correlation tested)

IS_Off

<10

350

µA

Supply current

Power up, PA off, V

S = 3V,

VENABLE >1.7V, VPA_ENABLE < 0.25V

3.6

4.6

Power up, VS =3.0,

ENABLE >1.7V, VPA_ENABLE >1.7V

S_Transmit

8.5

Output power

S = 3.0V, Tamb =25°C,

f = 868.3 MHz, Z

Load = (166 + j226)Ω

PRef

3.5

5.5

dBm

Note:

1. If V

S is higher than 3.6V, the maximum voltage will be reduced to 3.6V.

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