Voltage

Controlled

Oscillator

Phase

Comparator

1

Phase

Comparator

2

Phase

Comparator

3

3

2

1

5

INH

4

7

6

9

GND

8

11

10

16

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SN74LV4046A

SCES656D – FEBRUARY 2006 – REVISED SEPTEMBER 2015

SN74LV4046A High-Speed CMOS Logic Phase-Locked Loop With VCO

1

1 Features

The signal input can be directly coupled to large

•

Choice of Three Phase Comparators

voltage signals, or indirectly coupled (with a series

–

Exclusive OR

capacitor) to small voltage signals. A self-bias input

–

Edge-Triggered J-K Flip-Flop

circuit keeps small voltage signals within the linear

region of the input amplifiers. With a passive low-

–

Edge-Triggered RS Flip-Flop

pass filter, the SN74LV4046A forms a second-order

•

Excellent VCO Frequency Linearity

loop PLL. The excellent VCO linearity is achieved by

•

VCO-Inhibit Control for ON/OFF Keying and for

the use of linear operational amplifier techniques.

Low Standby Power Consumption

Various

applications

include

telecommunications,

•

Optimized Power-Supply Voltage Range From 3 V

digital phase-locked loop and signal generators.

to 5.5 V

Device Information(1)

•

Wide Operating Temperature Range . . . –40°C to

PART NUMBER

PACKAGE

BODY SIZE (NOM)

125°C

SOP (16)

7.70mm x 10.20mm

•

Latch-Up Performance Exceeds 250 mA Per

SN74LV4046A

SOIC (16)

6.00mm x 9.90mm

JESD 17

TSSOP (16)

6.40mm x 5.00mm

•

ESD Protection Exceeds JESD 22

(1) For all available packages, see the orderable addendum at

–

2000-V Human Body Model (A114-A)

the end of the data sheet.

–

200-V Machine Model (A115-A)

SN74LV4046A Functional Block Diagram

–

1000-V Charged-Device Model (C101)

2 Applications

•

Telecommunications

•

Signal Generators

•

Digital Phase-Locked Loop

3 Description

The SN74LV4046A is a high-speed silicon-gate

CMOS device that is pin compatible with the

CD4046B and the CD74HC4046. The device is

specified in compliance with JEDEC Std 7.

The SN74LV4046A is a phase-locked loop (PLL)

circuit

that

contains

a

linear

voltage-controlled

oscillator

(VCO)

and

three

different

phase

comparators (PC1, PC2, and PC3). A signal input

and a comparator input are common to each

comparator.

1

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.