TRF2020

SYNTHESIZER FOR GLOBAL SYSTEM

FOR MOBILE (GSM) CELLULAR TELEPHONES

SLWS020B – FEBRUARY 1995 – REVISED JANUARY 1998

3

POST OFFICE BOX 655303

Terminal Functions

TERMINAL

I/O

DESCRIPTION

NAME

NO.

I/O

DESCRIPTION

AUX1_IN

24

I

RF input auxiliary-1 synthesizer

AUX2_IN

12

I

RF input auxiliary-2 synthesizer

CLOCK

2

I

Clock input

DATA

3

I

Data input

LD

5

O

Lock detect output

PDA1

22

O

Auxiliary-1 synthesizer phase detector output

PDA2

9

O

Auxiliary-2 synthesizer phase detector output

PDM

17

O

Main synthesizer phase detector output

REF_IN

7

I

Reference input

RF_IN

13

I

Main synthesizer RF input

RPA

20

I

Reference current input for AUX-1 and AUX-2 charge pumps

RPM

15

I

Reference current input for main charge pump

STROBE

4

I

Strobe input

SWM

18

O

Main analog switch output

SW1

21

O

Auxiliary-1 analog switch output

SW2

10

O

Auxiliary-2 analog switch output

VDD

1

Digital supply voltage

VDDA

19

Analog supply voltage

VDDPM

14

Main prescaler supply voltage

VDDP1

23

Auxiliary-1 prescaler supply voltage

VDDP2

11

Auxiliary-2 prescaler supply voltage

VSS

6

Digital ground

VSSA

16

Analog ground

VSSP

8

Prescaler ground

– 0.3 V to 4.6 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

– 0.3 V to 6 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

300 mW

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

150

°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

–40

°C to 85°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

–65

°C to 150°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

† Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and

functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not

implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

recommended operating conditions

MIN

NOM

MAX

UNIT

VDDA

Analog supply voltage

2.75

3

4.5

V

VDD, VDDP

Digital supply voltage

2.75

3

3.6

V

TA

Operating free-air temperature

–40

25

85

°C

TJ

Junction temperature

–30

105

°C