Motorola MC145192EVK Manual

MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
MC145192 and MC145202
Evaluation Board Manual
INTRODUCTION
The MC145192EVK and MC145202EVK are two versions of one board with a few component changes.
They allow users to exercise features of both devices and to build PLLs which meet individual perfor-
mance requirements. The control program works with any board and can be used with other Motorola
PLL devices (MC145190, MC145191, MC145200, MC145201, MC145220*). It will select frequency de-
faults that apply to each. All board functions are controlled through the printer port of an IBM PC. Up to
three different EVKs may be controlled at the same time from one printer port. The functional block dia-
gram is given in Figure 1.
This manual is divided into two sections. Section 1 describes the hardware and Section 2 covers the
software control program.
External Reference Input
TCXO Reference
Frequency
Control Data
Out A, Out B
Lock Detect
74HCT241, 74LS126
Buffer Logic
* The MC145220 is not available with Rev. 2.5 software.
All brand names and product names appearing in this document are registered trademarks or trademarks of their respective holders.
REV 1
3/96
MOTOROLA Motorola, Inc. 1996
PD out
Current
Loop Filter
MC145192
MC145202
PLL
F in
Isolation Resistor
Figure 1. Evaluation Kit Block Diagram
MC145192EVK
MC145202EVK
Control Voltage
VCO
733–751 MHz
2nd Harmonic
Filter, Amplifier
Logic Control Switches
Parallel Port Connector
MC145192EVK MC145202EVK
RF Output
1