sc14046b ON Semiconductor, sc14046b Datasheet

sc14046b

Manufacturer Part Number

sc14046b

Description

Phase Locked Loop

Manufacturer

ON Semiconductor

Datasheet

1.SC14046B.pdf (7 pages)

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SC14046B

Phase Locked Loop

a voltage−controlled oscillator (VCO), source follower, and zener

diode. The comparators have two common signal inputs, PCA

PCB

signals, or indirectly coupled (with a series capacitor) to small voltage

signals. The self−bias circuit adjusts small voltage signals in the linear

region of the amplifier. Phase comparator 1 (an exclusive OR gate)

provides a digital error signal PC1

the center frequency between PCA

duty cycle). Phase comparator 2 (with leading edge sensing logic)

provides digital error signals, PC2

phase shift between PCA

immaterial). The linear VCO produces an output signal VCO

whose frequency is determined by the voltage of input VCO

capacitor and resistors connected to pins C1

source−follower output SF

the VCO

input Inh, when high, disables the VCO and source follower to

minimize standby power consumption. The zener diode can be used to

assist in power supply regulation.

frequency synthesis and multiplication, frequency discrimination,

tone decoding, data synchronization and conditioning,

voltage−to−frequency conversion and motor speed control.

Features

Stresses exceeding Maximum Ratings may damage the device. Maximum

Ratings are stress ratings only. Functional operation above the Recommended

Operating Conditions is not implied. Extended exposure to stresses above the

Recommended Operating Conditions may affect device reliability.

1. Temperature Derating:

MAXIMUM RATINGS

August, 2008 − Rev. 0

Symbol

The SC14046B phase locked loop contains two phase comparators,

Applications include FM and FSK modulation and demodulation,

Phase Comparator 1 is an Exclusive OR Gate and is Duty Cycle Limited

Phase Comparator 2 Switches on Rising Edges and is not Duty Cycle

Limited

Buffered Outputs Compatible with MHTL and Low−Power TTL

Diode Protection on All Inputs

Supply Voltage Range = 3.0 to 18 V

Pin−for−Pin Replacement for CD4046B

Pb−Free Packages are Available*

Semiconductor Components Industries, LLC, 2008

Plastic “DW” Packages: – 7.0 mW/_C From 65_C To 125_C

stg

. Input PCA

DC Supply Voltage Range

Input Voltage Range (All Inputs)

DC Input Current, per Pin

Power Dissipation, per Package

(Note 1)

Operating Temperature Range

Storage Temperature Range

signal is needed but no loading can be tolerated. The inhibit

Parameter

can be used directly coupled to large voltage

(Voltages Referenced to V

out

with an external resistor is used where

and PCB

out

, and maintains 90 phase shift at

and PCB

and LD, and maintains a 0

−0.5 to V

signals (duty cycle is

, C1

−0.5 to +18.0

−55 to +125

−65 to +150

)

signals (both at 50%

Value

500

, R1, and R2. The

+ 0.5

and the

Unit

and

out

against damage due to high static voltages or electric

fields. However, precautions must be taken to avoid ap-

plications of any voltage higher than maximum rated

voltages to this high−impedance circuit. For proper op-

eration, V

logic voltage level (e.g., either V

puts must be left open.

See detailed ordering and shipping information in the package

dimensions section on page 4 of this data sheet.

*For additional information on our Pb−Free strategy

and soldering details, please download the

ON Semiconductor Soldering and Mounting

Techniques Reference Manual, SOLDERRM/D.

This device contains protection circuitry to guard

Unused inputs must always be tied to an appropriate

v (V

ORDERING INFORMATION

and V

or V

http://onsemi.com

out

) v V

DW SUFFIX

CASE 751G

should be constrained to the range

SOIC−16

= Assembly Location

= Wafer Lot

= Year

= Work Week

= Pb−Free Indicator

Publication Order Number:

or V

MARKING

DIAGRAM

AWLYYWW

14046BG

SC14046B/D

). Unused out-

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sc14046b Summary of contents

Page 1

... SC14046B Phase Locked Loop The SC14046B phase locked loop contains two phase comparators, a voltage−controlled oscillator (VCO), source follower, and zener diode. The comparators have two common signal inputs, PCA PCB . Input PCA can be used directly coupled to large voltage in in signals, or indirectly coupled (with a series capacitor) to small voltage signals. The self− ...

Page 2

SELF BIAS PCA 14 in CIRCUIT PCB 3 in VCO PIN PIN 8 SS INH Î Î Î Î Î Î Î Î Î Î Î Î Î Î ...

Page 3

ELECTRICAL CHARACTERISTICS (Note 4) Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Characteristic Î Î Î Î Î ...

Page 4

... ORDERING INFORMATION Device SC14046BDWG SC14046BDWR2G †For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D. Package SOIC−16 WB (Pb−Free) http://onsemi.com 4 † Shipping 47 Units / Rail 1000 Units / Tape & Reel ...

Page 5

Input Stage X X PCA PCB in in PC1 out Input Stage X X PCA PCB in in PC2 out LD (Lock Detect) Refer to Waveforms in Figure 3. Î Î Î Î Î Î Î Î Î Î Î ...

Page 6

PCA 14 in PHASE @ FREQUENCY f 3 COMPARATOR PCB in R3 (a) OUTPUT INPUT NOTE: Sometimes R3 is split into two series resistors each R3 C should ...

Page 7

... PROTRUSION. ALLOWABLE DAMBAR PROTRUSION SHALL BE 0.13 TOTAL IN EXCESS OF THE B DIMENSION AT MAXIMUM MATERIAL CONDITION. MILLIMETERS DIM MIN MAX A 2.35 2.65 A1 0.10 0.25 B 0.35 0.49 C 0.23 0.32 D 10.15 10.45 E 7.40 7.60 e 1.27 BSC H 10.05 10.55 h 0.25 0.75 L 0.50 0. Semiconductor Website: www.onsemi.com Order Literature: http://www.onsemi.com/orderlit For additional information, please contact your local Sales Representative SC14046B/D ...

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