TRF2020 datasheet(9/26 Pages) TI

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TRF2020

SYNTHESIZER FOR GLOBAL SYSTEM

FOR MOBILE (GSM) CELLULAR TELEPHONES

SLWS020B – FEBRUARY 1995 – REVISED JANUARY 1998

POST OFFICE BOX 655303

• DALLAS, TEXAS 75265

TYPICAL CHARACTERISTICS

Figure 7

–35

500

450

–25

f – Frequency – MHz

–30

–20

–15

–10

–5

400

350

300

250

200

150

100

AUXILIARY-1 DIVIDER MINIMUM INPUT POWER

vs.

FREQUENCY AND SUPPLY VOLTAGE

TA = 25°C

3.5 V

2.75 V

Figure 8

–35

500

450

–25

f – Frequency – MHz

–30

–20

–15

–10

–5

400

350

300

250

200

150

100

AUXILIARY-1 DIVIDER MINIMUM INPUT POWER

vs.

FREQUENCY AND TEMPERATURE

TA = –40°C

TA = 25°C

TA = 85°C

VDDA = VDDP = VDD = 2.75 V

Figure 9

–40

–35

500

450

–25

f – Frequency – MHz

–30

–20

–15

–10

–5

400

350

300

250

200

150

100

AUXILIARY-2 DIVIDER MINIMUM INPUT POWER

vs.

FREQUENCY AND SUPPLY VOLTAGE

3.5 V

2.75 V

TA = 25°C

Figure 10

–40

–35

500

450

–25

f – Frequency – MHz

–30

–20

–15

–10

–5

400

350

300

250

200

150

100

AUXILIARY-2 DIVIDER MINIMUM INPUT POWER

vs.

FREQUENCY AND SUPPLY VOLTAGE

VDDA = VDDP = VDD = 2.75 V

TA = –40°C

TA = 25°C

TA = 85°C

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