© Freescale Semiconductor, Inc., 2004. All rights reserved.

Freescale Semiconductor

Technical Data

Freescale reserves the right to change the detail specifications as may be required to permit improvements in the design of its

products.

MC145151-2/D

Rev. 5, 12/2004

MC145151-2

MC145152-2

DW Suffix

SOG Package

Case 751F

P Suffix

Plastic DIP

Case 710

Package Information

28

1

28

1

Ordering Information

Device

Package

MC145151P2

Plastic DIP

MC145151DW2

SOG Package

MC145152P2

Plastic DIP

MC145152DW2

SOG Package

The devices described in this document are typically

used as low-power, phase-locked loop frequency

synthesizers. When combined with an external low-pass

filter and voltage-controlled oscillator, these devices can

provide all the remaining functions for a PLL frequency

synthesizer operating up to the device's frequency limit.

For higher VCO frequency operation, a down mixer or a

prescaler can be used between the VCO and the

synthesizer IC.

These frequency synthesizer chips can be found in the

following and other applications:

CATV

TV Tuning

AM/FM Radios

Scanning Receivers

Two-Way Radios

Amateur Radio

OSC

φ

VCO

OUTPUT FREQUENCY

CONTROL

LOGIC

MC145151-2 and

MC145152-2

PLL Frequency Synthesizers

(CMOS)

Contents

1 MC145151-2 Parallel-Input (Interfaces with

Single-Modulus Prescalers) . . . . . . . . . . . . . 2

1.1 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

1.2 Pin Descriptions . . . . . . . . . . . . . . . . . . . . . . 3

1.3 Typical Applications . . . . . . . . . . . . . . . . . . . 6

2 MC145152-2 Parallel-Input (Interfaces with

Dual-Modulus Prescalers) . . . . . . . . . . . . . . . 7

2.1 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.2 Pin Descriptions . . . . . . . . . . . . . . . . . . . . . . 8

2.3 Typical Applications . . . . . . . . . . . . . . . . . . 10

3 MC145151-2 and MC145152-2

Electrical Characteristics . . . . . . . . . . . . . . 12

4 Design Considerations . . . . . . . . . . . . . . . . 18

4.1 Phase-Locked Loop — Low-Pass Filter

Design . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

4.2 Crystal Oscillator Considerations . . . . . . . . 19

4.3 Dual-Modulus Prescaling . . . . . . . . . . . . . . 21

5 Package Dimensions . . . . . . . . . . . . . . . . . . 23