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MC145170-2 Datasheet

  • MC145170-2

  • PLL Frequency Synthesizer with Serial Interface

  • 32頁

  • FREESCALE

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Freescale Semiconductor
Technical Data
MC145170-2/D
Rev. 5, 1/2005
MC145170-2
MC145170-2
PLL Frequency Synthesizer with
Serial Interface
SCALE 2:1
Package Information
P Suffix
SOG Package
Case 648
Package Information
D Suffix
Plastic DIP Package
Case 751B
Package Information
DT Suffix
TSSOP Package
Case 948C
1
Introduction
Device
MC145170P2
MC145170D2
Ordering Information
Operating
Temperature Range
Package
Plastic DIP
T
A
= -40 to 85擄C
SOG-16
TSSOP-16
The new MC145170-2 is pin-for-pin compatible with the
MC145170-1. A comparison of the two parts is shown in
Table 1 on page 2.
The MC145170-2 is recommended
for new designs and has a more robust power-on reset
(POR) circuit that is more responsive to momentary
power supply interruptions. The two devices are actually
the same chip with mask options for the POR circuit. The
more robust POR circuit draws approximately 20
碌A(chǔ)
additional supply current. Note that the maximum
specification of 100
碌A(chǔ)
quiescent supply current has not
changed.
The MC145170-2 is a single-chip synthesizer capable of
direct usage in the MF, HF, and VHF bands. A special
architecture makes this PLL easy to program. Either a
bit- or byte-oriented format may be used. Due to the
patented BitGrabber鈩?registers, no address/steering bits
are required for
random access
of the three registers.
Thus, tuning can be accomplished via a 2-byte serial
transfer to the 16-bit N register.
MC145170DT2
Contents
1
2
3
4
5
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Electrical Characteristics . . . . . . . . . . . . . . . 3
Pin Connections . . . . . . . . . . . . . . . . . . . . . . . 9
Design Considerations . . . . . . . . . . . . . . . . 18
Packaging . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Freescale reserves the right to change the detail specifications as may be required to permit improvements in the design of its
products.
漏 Freescale Semiconductor, Inc., 2005. All rights reserved.

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