ST7162 Datasheet, PDF (1/17 Pages) STMicroelectronics – UNIVERSAL PROGRAMMABLE DUAL PLL

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,
4 and 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
DIP16
ORDERING NUMBER: ST7162N
SO16
ORDERING NUMBER: ST7162D
PIN CONNECTION (Top view)
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°C to +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.
July 1993
1/17
This is advanced information on a new product now in development or undergoing evaluation. Details are subject to change without notice.