MC145170-2| Datasheet

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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

Introduction
Device MC145170P2 MC145170D2

Ordering Information Operating Temperature Range Package Plastic DIP TA = -40 to 85 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 uA additional supply current. Note that the maximum specification of 100 uA 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 BitGrabberTM 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