Freescale Semiconductor
Technical Data
MC145151-2/D
Rev. 5, 12/2004
MC145151-2
MC145152-2
28
28
MC145151-2 and
MC145152-2
1
1
Package Information
DW Suffix
P Suffix
SOG Package
Plastic DIP
Case 751F
Case 710
PLL Frequency Synthesizers
(CMOS)
Ordering Information
OSC
÷R
φ
CONTROL
LOGIC
÷A
÷ P/P + 1
÷N
Plastic DIP
MC145151DW2
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
Package
MC145151P2
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.
Device
SOG Package
MC145152P2
Plastic DIP
MC145152DW2
SOG Package
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
VCO
OUTPUT FREQUENCY
Freescale reserves the right to change the detail specifications as may be required to permit improvements in the design of its
products.
© Freescale Semiconductor, Inc., 2004. All rights reserved.
