Datasheet

Oscillator
MC68HC912D60A Oscillator Specification
MC68HC912D60A — Rev. 3.1 Technical Data
Freescale Semiconductor Oscillator 177
Figure 12-1. MC68HC912D60A Colpitts Oscillator Architecture
12.3.2 MC68HC912D60A Oscillator Design Guidelines
Proper and robust operation of the oscillator circuit requires excellent
board layout design practice. Poor layout of the application board can
contribute to EMC susceptibility, noise generation, slow starting
oscillators, and reaction to noise on the clock input buffer. In addition to
published errata for the MC68HC912D60A, the following guidelines
must be followed or failure in operation may occur.
ALC
+
-
OTA
+
-
CFLT
RFLT
EN
BIAS
Resonator
C
X-EX
C
X-VSS
BUF
RFLT
CFLT
2
GM
EXTAL XTAL
RESD