HCF4521BEY Просмотр технического описания (PDF) - STMicroelectronics

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HCF4521BEY

24 STAGE FREQUENCY DIVIDER

STMicroelectronics 

TYPICAL DATA FOR CRYSTAL OSCILLATOR CIRCUIT

CHARACTERISTIC

Crystal Characteristics

External Resistor/Capacitor Values

Frequency Stability

Frequency Change as a Function

of VDD (TA = 25°C

Frequency Change as a Function

of temperature VDD = 10V

TA Change from -55°C to 25°C

Resonant Frequency

Equivalent Resistance, Rs

RO

CT

CS

VDD Change from 5V to 10V

VDD Change from 10V to 15V

HCF4521B only

Complete Oscillator *

TA Change from 25°C to 125°C

HCF4521B only

Complete Oscillator *

* Complete oscillator includes crystal, capacitors and resistors.

CRYSTAL OSCILLATOR CIRCUIT

500 kHz

CIRCUIT

500

1

47

82

20

6

2

-4

100

-2

160

HCF4521B

50 kHz

CIRCUIT

50

6.2

750

82

20

2

2

-2

120

-2

-560

UNIT

kHz

kΩ

kΩ

pF

pF

ppm

ppm

ppm

ppm

ppm

ppm

9/12

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