ST7162

UNIVERSAL PROGRAMMABLE DUAL PLL

PRODUCT PREVIEW

TWO INDEPENDENT PLL WITH 16 BITS

PROGRAMMABLE DIVIDERS FROM 13 TO

65535

FOR

TRANSMIT

AND

RECEIVE

LOOPS

ON CHIP REFERENCE OSCILLATOR COM-

MON FOR THE TWO LOOPS UP TO 16MHz

WITH EXTERNAL CRYSTAL

TWO

INDEPENDENT

PROGRAMMABLE

REFERENCE COUNTERS:

- 12 bits programmable counter from 13 to

4095 followed by selectable dividers by 1,

4and 25

- 14 bits auxiliary programmable counter from

13 to 16383

A MCU CLOCK DERIVED FROM REFER-

ENCE OSCILLATOR WITH A SELECTABLE

DIVISION FACTOR OF 3 OR 4

TWO INDEPENDENT PFD (PHASE FRE-

QUENCY DISCRIMINATOR) WITH 3 STATE

OUTPUTS

LOCK DETECT SIGNAL OUTPUT FOR THE

TRANSMIT LOOP

3 & 4 WIRES SELECTABLE MCU SERIAL IN-

TERFACE,

FOR

SIMULTANEOUS

PRO-

GRAMMING OF 2 COUNTERS

STAND-BY MODE

MAIN CHARACTERISTICS

High input sensitivity:

200mVpkpk @ 60MHz

Low consumption:

3.5mA @ 3V for the two loops

Power supply voltage:

3V to 5V

Operating temperature range:

–25

°Cto+70°C

DESCRIPTION

The ST7162 is a dual frequency synthesizer in

High Speed CMOS technology for radio applica-

tions with a frequency up to 60MHz. The low

power consumption and high flexibility make it

well suitable for cordless CT0 applications in vari-

ous countries.

This is advanced information on a new product now in development or undergoing evaluation. Details are subject to change without notice.

July 1993

PIN CONNECTION (Top view)

DIP16

ORDERING NUMBER: ST7162N

SO16

ORDERING NUMBER: ST7162D

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