Microcontrollers Data Sheet

Advance Information MC68HC(7)08KH12 — Rev. 1.1
258 Freescale Semiconductor
17.15.3 Acquisition/Lock Time Specifications
Description Symbol Min Typ Max Notes
Filter Capacitor Multiply Factor C
FACT
— 0.0145 — F/s V
Acquisition Mode Time Factor K
ACQ
—0.117—V
Tracking Mode Time Factor K
TRK
—0.021—V
Manual Mode Time to Stable t
ACQ
——If C
F
chosen correctly
Manual Stable to Lock Time t
AL
——If C
F
chosen correctly
Manual Acquisition Time t
LOCK
—t
ACQ
+ t
AL
—
Tracking Mode Entry Frequency
Tolerance
∆
TRK
0—± 3.6%
Acquisition Mode Entry Frequency
Tolerance
∆
ACQ
± 6.3% — ± 7.2%
LOCK Entry Frequency Tolerance ∆
LOCK
0—± 0.9%
LOCK Exit Frequency Tolerance ∆
UNL
± 0.9% — ± 1.8%
Reference Cycles Per Acquisition
Mode Measurement
n
ACQ
32 —
Reference Cycles Per Tracking
Mode Measurement
n
TRK
128 —
Automatic Mode Time to Stable t
ACQ
n
ACQ
/f
RDV
—If C
F
chosen correctly
Automatic Stable to Lock Time t
AL
n
TRK
/f
RDV
—If C
F
chosen correctly
Automatic Lock Time t
LOCK
—t
ACQ
+ t
AL
—
8V
DDA
×
f
RDV
K
ACQ
×
------------------------------
4V
DDA
×
f
RDV
K
TRX
×
-----------------------------
8V
DDA
×
f
RDV
K
ACQ
×
------------------------------
4V
DDA
×
f
RDV
K
TRX
×
-----------------------------