74HC4046AD datasheet(4/34 Pages) PHILIPS

Part #	74HC4046AD

Description	Phase-locked-loop with VCO

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Manufacturer	PHILIPS [NXP Semiconductors]

Direct Link	http://www.nxp.com

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4 / 34 page

1997 Nov 25

4

Philips Semiconductors

Product speciﬁcation

Phase-locked-loop with VCO

74HC/HCT4046A

QUICK REFERENCE DATA

GND = 0 V; Tamb =25 °C

Notes

1. CPD is used to determine the dynamic power dissipation (PD in µW):

PD =CPD × VCC2 × fi + ∑ (CL × VCC2 × fo) where:

fi = input frequency in MHz.

fo = output frequency in MHz.

CL = output load capacitance in pF.

VCC = supply voltage in V.

∑ (CL × VCC2 × fo) = sum of outputs.

2. Applies to the phase comparator section only (VCO disabled). For power dissipation of the VCO and demodulator

sections see Figs 22, 23 and 24.

ORDERING INFORMATION

See

“74HC/HCT/HCU/HCMOS Logic Package Information”.

APPLICATIONS

• FM modulation and demodulation

• Frequency synthesis and multiplication

• Frequency discrimination

• Tone decoding

• Data synchronization and conditioning

• Voltage-to-frequency conversion

• Motor-speed control.

PACKAGE OUTLINES

See

“74HC/HCT/HCU/HCMOS Logic Package Outlines”.

SYMBOL

PARAMETER

CONDITIONS

TYPICAL

UNIT

HC

HCT

fo

VCO centre frequency

C1 = 40 pF; R1 = 3 k

Ω;VCC = 5 V 19

19

MHz

CI

input capacitance (pin 5)

3.5

pF

CPD

power dissipation capacitance per

package

notes 1 and 2

24

pF

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