SA8025A Ver la hoja de datos (PDF) - Philips Electronics

Número de pieza

componentes Descripción

Fabricante

SA8025A

Low-voltage 1.8GHz fractional-N synthesizer

Philips Electronics 

Philips Semiconductors

1.8GHz low-voltage Fractional-N synthesizer

Product specification

SA8025A

PIN DESCRIPTIONS

Symbol Pin

Description

CLOCK 1 Serial clock input

DATA

2 Serial data input

STROBE 3 Serial strobe input

VSS

RFIN

4 Digital ground

5 Prescaler positive input

RFIN

VCCP

REFIN

RA

AUXIN

PHA

6 Prescaler negative input

7 Prescaler positive supply voltage. This pin supplies power to the prescaler and RF input buffer

8 Reference divider input

9 Auxiliary current setting; resistor to VSSA

10 Auxiliary divider input

11 Auxiliary phase detector output

VSSA

PHI

12 Analog ground

13 Integral phase detector output

PHP

14 Proportional phase detector output

VDDA

15 Analog supply voltage. This pin supplies power to the charge pumps, Auxiliary prescaler, Auxiliary and Reference

buffers.

RN

RF

LOCK

16 Main current setting; resistor to VSSA

17 Fractional compensation current setting; resistor to VSSA

18 Lock detector output

TEST

VDD

19 Test pin; connect to VDD

20 Digital supply voltage. This pin supplies power to the CMOS digital part of the device

1996 Oct 15

3

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