TRF2050

LOW-VOLTAGE 1.2-GHz FRACTIONAL-N/INTEGER-N SYNTHESIZER

SLWS030E– JUNE 1996 – REVISED OCTOBER 2000

3

POST OFFICE BOX 655303

Terminal Functions

TERMINAL

I/O

DESCRIPTION

NAME

NO.

I/O

DESCRIPTION

AUXIN

10

I

Auxiliary channel RF input

CLOCK

1

I

Serial interface clock signal

DATA

2

I

Serial interface data signal

LOCK/

TEST

18

O

Lock detector/test mode output

PHA

11

O

Auxiliary charge pump output

PHI

13

O

Integral charge pump output

PHP

14

O

Proportional charge pump output

RFIN

5

I

Prescaler positive RF input

RFIN

6

I

Prescaler negative RF input

REFIN

8

I

Reference frequency input signal

RA

9

I

Resistor to VSSA sets auxiliary charge pump reference current

RN

16

I

Resistor to VSSA sets proportional and integral charge pump reference current

RF

17

I

Resistor to VSSA sets compensation charge pump reference current

STROBE

3

I

Serial interface strobe signal

TSETUP

19

I

Test setup for pin 18. For lock detect output, pin 19 connects to VCC through a pullup resistor; for test mode output,

pin 19 terminates to ground.

VCCP

7

Prescaler positive supply voltage

VDD

20

Digital supply voltage

VDDA

15

Analog supply voltage

VSS

4

Digital ground

VSSA

12

Analog ground

– 0.6 V to 5.6 V

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

Input voltage range, logic signals

– 0.6 V to 5.6 V

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

–55

°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.

NOTE 1: Voltage values are with respect to VSSA.