MC145170P2 Freescale Semiconductor, Inc, MC145170P2 Datasheet

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MC145170P2

Manufacturer Part Number
MC145170P2
Description
Manufacturer
Freescale Semiconductor, Inc
Datasheet

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Freescale Semiconductor
Technical Data
MC145170-2
PLL Frequency Synthesizer with
Serial Interface
1
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
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 µA
additional supply current. Note that the maximum
specification of 100 µA 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™ 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.
Freescale reserves the right to change the detail specifications as may be required to permit improvements in the design of its
products.
© Freescale Semiconductor, Inc., 2005. All rights reserved.
Introduction
2. The MC145170-2 is recommended
Package Information
Plastic DIP Package
Contents
1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . 1
2 Electrical Characteristics . . . . . . . . . . . . . . . 3
3 Pin Connections . . . . . . . . . . . . . . . . . . . . . . . 9
4 Design Considerations . . . . . . . . . . . . . . . . 18
5 Packaging . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
MC145170DT2
MC145170P2
MC145170D2
Case 751B
Device
D Suffix
SCALE 2:1
MC145170-2
Ordering Information
Package Information
Temperature Range
SOG Package
T
A
Case 648
Operating
P Suffix
= -40 to 85°C
Package Information
MC145170-2/D
TSSOP Package
Rev. 5, 1/2005
Case 948C
DT Suffix
Plastic DIP
TSSOP-16
Package
SOG-16

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MC145170P2 Summary of contents

Page 1

... Case 648 SCALE 2:1 Package Information Package Information D Suffix Plastic DIP Package TSSOP Package Case 751B Ordering Information Operating Device Temperature Range MC145170P2 MC145170D2 T = -40 to 85°C A MC145170DT2 Contents 1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . 1 2 Electrical Characteristics . . . . . . . . . . . . . . . 3 3 Pin Connections . . . . . . . . . . . . . . . . . . . . . . . 9 4 Design Considerations . . . . . . . . . . . . . . . . 18 5 Packaging . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 DT Suffix ...

Page 2

Introduction The device features fully programmable R and N counters, an amplifier at the f an external crystal, a programmable reference output, and both single- and double-ended phase detectors with linear transfer functions (no dead zones). A configuration (C) register ...

Page 3

OSC in OSC 2 OSC out 4-Stage 3 Reference REF out Divider 7 CLK Shift 5 D Register in And Control Logic 8 Dout 6 ENB Input 4 f AMP in 2 Electrical Characteristics Table 2. Maximum Ratings (Voltages ...

Page 4

Electrical Characteristics Table 3. Electrical Characteristics (Voltages Referenced to V Parameter Power Supply Voltage Range 1 Maximum Low-Level Input Voltage (D , CLK, ENB Minimum High-Level Input Voltage (D , CLK, ENB ...

Page 5

T = -40 to 85° Parameter Serial Data Clock Frequency (Note: Refer to Clock t Maximum Propagation Delay, CLK to D Maximum Disable Time, D Active to High Impedance out Access Time, D High Impedance to Active ...

Page 6

Electrical Characteristics 2.1 Switching Waveforms 90% 50% CLK 10 1/fclk t t PLH PHL 90% D 50% out 10 TLH Figure 2. Valid 50 ...

Page 7

Table 6. Loop Specifications (T Parameter Input Frequency, f [Note Wave, N Counter Set to Divide Ratio Such that ≤ 2.0 MHz f V Input Frequency, OSC Externally Driven with OSC ac-coupled Signal R ...

Page 8

Electrical Characteristics 0.01 µF Sine Wave OSC Generator 5.0 MΩ OSC 50 Ω Figure 9. Test Circuit, OSC Circuitry Externally Driven [Note] Use the circuit of when the MC145170-2 has power applied with no external signal applied at ...

Page 9

Pin Connections 3.1 Digital Interface Pins D in Serial Data Input (Pin 5) The bit stream begins with the most significant bit (MSB) and is shifted in on the low-to-high transition of CLK. The bit pattern is 1 byte ...

Page 10

Pin Connections CLK typically switches near 50 times are allowed. See the last paragraph guarantee proper operation of the power-on reset (POR) circuit, the CLK pin must be held at the potential of either the ...

Page 11

An external feedback resistor of 1.0 to 5.0 MΩ is connected directly across the pins to ensure linear operation of the amplifier. The required ...

Page 12

Pin Connections When activated, the f signal appears as normally low and pulses high. The pulse width is 4.5 cycles of R the OSC pin signal, except when a divide ratio selected. When 1 is selected, the ...

Page 13

Frequency of f < Phase Frequency and Phase POL bit (C7) = high Frequency of f > Phase Frequency of f < ...

Page 14

Pin Connections 3.5 Power Supply V DD Most Positive Supply Potential (Pin 16) This pin may range from 2.7 to 5.5 V with respect to V For optimum performance very close to the device. Lead lengths on the ...

Page 15

ENB CLK MSB this point, the new byte is transferred to the C register and stored. No other registers are affected POL: Select the output polarity of the phase/frequency detectors. When set high, ...

Page 16

Pin Connections Figure 17. R Register Access and Formats (Either Clock Cycles Can Be Used) 16 MC145170-2 Technical Data, Rev. 5 Freescale Semiconductor ...

Page 17

ENB CLK MSB N15 N14 N13 N12 this point, the two new bytes are transferred to the N register and stored. No other registers are affected. In addition, the N and R counters ...

Page 18

Design Considerations 4 Design Considerations 4.1 Crystal Oscillator Considerations The following options may be considered to provide a reference frequency to our CMOS frequency synthesizers. 4.1.1 Use of a Hybrid Crystal Oscillator Commercially available temperature-compensated crystal oscillators (TCXOs) or crystal-controlled ...

Page 19

Power is dissipated in the effective series resistance of the crystal, R level specified by the crystal manufacturer represents the maximum stress that the crystal can withstand without damage or excessive shift in operating frequency ...

Page 20

Design Considerations (A) PD out (B) PD out ( φ R φ NOTES: 1. For (C frequently split into two series resistors; each resistor ...

Page 21

V+ MCU NOTES: The φ and φ 1. outputs are fed to an external combiner/loop filter. See the Phase-Locked Loop — Low-Pass Filter Design page for additional information. The φ Therefore, the user should be careful not to ...

Page 22

Design Considerations A B NOTE: The signals at Points A and B may be low-frequency sinusoidal or square waves with slow edge rates or noisy signal edges. At Points C and D, the signals are cleaned up, have sharp edge ...

Page 23

SOG Package Marker Figure 26. Input Impedance at fin - Series Format (R + jX) CMOS MCU NOTES: 1. The 33 kΩ resistor is needed to prevent the D 2. See related ...

Page 24

Design Considerations 24 MC145170-2 Technical Data, Rev. 5 Freescale Semiconductor ...

Page 25

Freescale Semiconductor MC145170-2 Technical Data, Rev. 5 Design Considerations 25 ...

Page 26

Design Considerations CMOS MCU NOTES: 1. The 33 kΩ resistor is needed to prevent the D three-state output. 2. See related Figures 32, 33, and 34. Figure 31. Cascading Two Different Device Types Device #1 MC145170-2 D ...

Page 27

Freescale Semiconductor MC145170-2 Technical Data, Rev. 5 Design Considerations 27 ...

Page 28

Design Considerations 28 MC145170-2 Technical Data, Rev. 5 Freescale Semiconductor ...

Page 29

Packaging - 0.25 (0.010) Figure 35. Outline Dimensions for P Suffix, DIP-16 0. 6.2 8X 5.8 PIN'S NUMBER 1 16 PIN 1 INDEX ...

Page 30

Packaging 16 L PIN 1 IDENTIFICATION 1 C 0.100 (0.004 -T- SEATING PLANE SECTION A-A Figure 37. Outline Dimensions for DT Suffix, TSSOP- 16x REF -P- 0.200 (0.008 ...

Page 31

Freescale Semiconductor NOTES MC145170-2 Technical Data, Rev ...

Page 32

... Freescale Semiconductor was negligent regarding the design or manufacture of the part. Freescale™ and the Freescale logo are trademarks of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. © Freescale Semiconductor, Inc. 2005. All rights reserved. ...

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