mc145156 Lansdale Semiconductor, Inc., mc145156 Datasheet

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mc145156

Manufacturer Part Number
mc145156
Description
Pll Frequency Synthesizer Family
Manufacturer
Lansdale Semiconductor, Inc.
Datasheet

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Page 1 of 35
synthesizers. When combined with an external low–pass filter and voltage–controlled oscillator, these
devices can provide all the remaining functions for a PLL frequency synthesizer operating up to the
device's frequency limit. For higher VCO frequency operation, a down mixer or a prescaler can be used
between the VCO and the synthesizer IC.
DEVICE DETAIL SHEETS
FAMILY CHARACTERISTICS
DESIGN CONSIDERATIONS
The devices described in this document are typically used as low–power, phase–locked loop frequency
These frequency synthesizer chips can be found in the following and other applications:
ML145151 Parallel–Input, Single–Modulus ...........................................................................................2
ML145152 Parallel–Input, Dual–Modulus..............................................................................................5
ML145155 Serial–Input, Single–Modulus ..............................................................................................9
ML145156 Serial–Input, Dual–Modulus...............................................................................................13
ML145157 Serial–Input, Single–Modulus ............................................................................................17
ML145158 Serial–Input, Dual–Modulus...............................................................................................20
Maximum Ratings..................................................................................................................................23
DC Electrical Characteristics.................................................................................................................23
AC Electrical Characteristics.................................................................................................................25
Timing Requirements.............................................................................................................................26
Frequency Characteristics ......................................................................................................................27
Phase Detector/Lock Detector Output Waveforms................................................................................27
Phase–Locked Loop – Low–Pass Filter Design ....................................................................................28
Crystal Oscillator Considerations ..........................................................................................................29
Dual–Modulus Prescaling......................................................................................................................30
CATV
AM/FM Radios
Two–Way Radios
OSC
÷
A
CONTROL LOGIC
TV Tuning
Scanning Receivers
Amateur Radio
÷
P/P
+
1
www.lansdale.com
CONTENTS
÷
÷
R
N
VCO
OUTPUT
FREQUENCY
ML145151
ML145152
ML145155
PLL Frequency Synthesizer Family - CMOS
φ
EXTERNAL
COMPONENTS
ML145156
ML145157
ML145158
Page
Issue A

Related parts for mc145156

mc145156 Summary of contents

Page 1

The devices described in this document are typically used as low–power, phase–locked loop frequency synthesizers. When combined with an external low–pass filter and voltage–controlled oscillator, these devices can provide all the remaining functions for a PLL frequency synthesizer operating up ...

Page 2

Legacy Device: Motorola/Freescale MC145151 The ML145151 is programmed by 14 parallel–input data lines for the N counter and three input lines for the R counter. The device features consist of a reference oscillator, selec- table–reference divider, digital–phase detector, and 14–bit ...

Page 3

... LANSDALE Semiconductor, Inc. OSC out OSC T/R NOTE: N0 – N13 inputs and inputs RA0, RA1, and RA2 have pull–up resistors that are not shown. PIN DESCRIPTIONS INPUT PINS f in Frequency Input (Pin 1) Input to the ÷N portion of the synthesizer typically derived from loop V CO and is AC coupled into the device ...

Page 4

... LANSDALE Semiconductor, Inc. φR,φV Phase Detector B Outputs (Pins 8, 9) These phase detector outputs can be combined externally for a loop–error signal. A single–ended output is also available for this purpose (see PD out ). If frequency greater than the phase leading, then error information is provided by φ ...

Page 5

Legacy Device: Motorola/Freescale MC145152 The ML145152 is programmed by sixteen parallel inputs for the N and A counters and three input lines for the R counter. The device features consist of a reference oscillator, selectable–reference divider, two–output phase detector, 10–bit ...

Page 6

... LANSDALE Semiconductor, Inc. OSC out OSC NOTE: N0 – N9, A0 – A5, and RA0 – RA2 have pull–up resistors that are not shown. PIN DESCRIPTIONS INPUT PINS f in Frequency Input (Pin 1) Input to the positive edge triggered ÷ N and ÷ A counters typically derived from a dual–modulus prescaler and is AC coupled into the device ...

Page 7

... LANSDALE Semiconductor, Inc. their respective programmed values, and the above sequence repeated. This provides for a total programmable divide value (NT)=N•P+A where P and represent the dual–modulus prescaler divide values respectively for high and low MC lev- els, N the number programmed into the ÷ N counter, and A the number programmed into the ÷ ...

Page 8

... LANSDALE Semiconductor, Inc. REF. OSC. 15.360 MHz (ON–CHIP OSC. X2 OPTIONAL) OSC out RA2 OSC in ML145152 + CHANNEL PROGRAMMING NOTES: 1. Receiver 1st I. MHz, low side injection; Receiver 2nd I.F. = 11.7 MHz, low side injection. 2. Duplex operation with 45 MHz receiver/transmit separation 7.5 kHz; ÷ 2048. ...

Page 9

Legacy Device: Motorola/Freescale MC145155-2 The ML145155 is programmed by a clocked, serial input, 16–bit data stream. The device features consist of a reference oscillator, selectable–reference divider, digital–phase detector, 14–bit programmable divide–by–N counter, and the necessary shift register and latch circuitry ...

Page 10

... This signal is typically ac coupled to OSC in , but for larger amplitude signals (standard CMOS logic levels) DC coupling may also be used. In the external reference mode, no connection is required to OSC out . www.lansdale.com LANSDALE Semiconductor, Inc. LOCK 14 DETECT ÷ R COUNTER ...

Page 11

... LANSDALE Semiconductor, Inc. OUTPUT PINS PD out Phase Detector A Output (PDIP, SOG – Pin 6) Three–state output of phase detector for use as loop error signal. Double–ended outputs are also available for this pur- pose (see φV and φR). Frequency f V > Leading: Negative Pulses Frequency f V < ...

Page 12

... The φ R and φ V outputs swing rail–to–rail. Therefore, the user should be careful not to exceed the common mode input range of the op amp used in the combiner/loop filter. Page ML145155 2.56 MHz φ ML145155 φ V DATA CLK ENB CMOS TO DISPLAY MPU/MCU Figure 2. AM/FM Radio Synthesizer www.lansdale.com LANSDALE Semiconductor, Inc. TO – AM/FM OSCILLATORS + 1/2 MC1458* Issue A ...

Page 13

... Legacy Device: Motorola/Freescale MC145156-2 The ML145156 is programmed by a clocked, serial input, 19–bit data stream. The device features consist of a reference oscillator, selectable–reference divider, digital–phase detector, 10–bit programmable divide–by–N counter, 7–bit program- mable divide–by–A counter, and the necessary shift register and latch circuitry for accepting serial input data. • ...

Page 14

... CMOS logic levels) DC coupling may also be used. In the external reference mode, no connection is required to OSC out . TEST Factory Test Input (Pin 16) Used in manufacturing. Must be left open or tied www.lansdale.com LANSDALE Semiconductor, Inc. LOCK DETECT f R PHASE DETECTOR ÷ ...

Page 15

... LANSDALE Semiconductor, Inc. OUTPUT PINS PDout Phase Detector A Output (Pin 6) Three–state output of phase detector for use as loop–error signal. Double–ended outputs are also available for this pur- pose (see φ V and φ Frequency f V > Leading: Negative Pulses Frequency f V < ...

Page 16

... R = 128, N total = 4720 – 5439. ÷ 128, using 21.4 MHz highside injection, N total = 5576 – 6295. ÷ 128 (code 010) for NAV and ÷ ML145156 Data Sheet Continued on Page 23 www.lansdale.com LANSDALE Semiconductor, Inc – VCO + 1/2 MC1458 NOTE 3 VCO RANGE NAV: 97.300 – ...

Page 17

Legacy Device: Motorola/Freescale MC145157-2 The ML145157 has a fully programmable 14–bit reference counter, as well as a fully programmable ÷ N counter. The counters are programmed serially through a common data input and latched into the appropriate counter latch, accord- ...

Page 18

... High–Impedance State φR, φV Double–Ended Phase Detector B Outputs (Pins 16, 15) These outputs can be combined externally for a loop–error signal. A single–ended output is also available for this purpose (see PD out ). www.lansdale.com LANSDALE Semiconductor, Inc LOCK LD DETECT PHASE PD out DETECTOR ...

Page 19

... LANSDALE Semiconductor, Inc. If frequency greater than the phase leading, then error information is provided by φ V pulsing low. φ R remains essentially high. If the frequency less than the phase lagging, then error information is provided by φ R pulsing low. ...

Page 20

Legacy Device: Motorola/Freescale MC145158-2 The ML145158 has a fully programmable 14–bit reference counter, as well as fully programmable ÷ N and ÷ A counters. The counters are programmed serially through a common data input and latched into the appropriate counter ...

Page 21

... LANSDALE Semiconductor, Inc. ENB OSC in OSC out REF out f in 1–BIT DATA CONTROL S/R CLK PIN DESCRIPTIONS INPUT PINS f in Frequency Input (Pin 8) Input frequency from VCO output. A rising edge signal on this input decrements the ÷ A and ÷ N counters. This input has an inverter biased in the linear region to allow use with AC coupled signals as low as 500 mV p– ...

Page 22

... POWER SUPPLY V DD Positive Power Supply (Pin 4) The positive power supply potential. This pin may range from + with respect to VSS Negative Power Supply (Pin 6) The most negative supply potential. This pin is usually- ground. www.lansdale.com LANSDALE Semiconductor, Inc. # ...

Page 23

... LANSDALE Semiconductor, Inc. ML14515X FAMILY CHARACTERISTICS AND DESCRIPTIONS - CONTINUED MAXIMUM RATINGS* (Voltages Referenced Symbol Parameter Supply Voltage out Input or Output Voltage (DC or Transient) except SW1, SW2 V out Output Voltage (DC or Transient), SW1, SW2 (R pull–up = 4.7 kΩ out ...

Page 24

... V out = – Output in Off State V out = – Output in Off State PD out – Three–State – – www.lansdale.com LANSDALE Semiconductor, Inc Max Min Max Min Max – 400 – 20 – 200 – 20 – 170 10 – ...

Page 25

... LANSDALE Semiconductor, Inc. AC ELECTRICAL CHARACTERISTICS Symbol t PLH , t PHL Maximum Propagation Delay (Figures 1 and 4) t PHL Maximum Propagation Delay, ENB to SW1, SW2 (Figures 1 and Output Pulse Width, φ φ and LD with Phase with f V (Figures 2 and 4) t TLH ...

Page 26

... ANY 90% OUTPUT 10% Figure 8. Page Parameter SWITCHING WAVEFORMS t w(H) – clk t f – www.lansdale.com LANSDALE Semiconductor, Inc Guaranteed Limit Guaranteed Limit – ...

Page 27

... LANSDALE Semiconductor, Inc. FREQUENCY CHARACTERISTICS Symbol Parameter f i Input Frequency ( OSC in ) NOTE: Usually, the PLL's propagation delay from plus the setup time of the prescaler determines the upper frequency limit of the system. The upper frequency limit is found with the following formula set ) where f is the upper frequency in Hz the lower of the dual modulus prescaler ratios the propagation delay in seconds, and t set is the prescaler setup time in seconds ...

Page 28

... A capacitor then placed from the midpoint to ground to further π for PD out π for φ V and φ R 2πfr (at phase detector input). 10 www.lansdale.com LANSDALE Semiconductor, Inc. K φ K VCO ω Nω n ζ φ K VCO 1 F( φ K VCO ω ...

Page 29

... LANSDALE Semiconductor, Inc. CRYSTAL OSCILLATOR CONSIDERATIONS The following options may be considered to provide a refer- ence frequency to Motorola's or Lansdale’s CMOS frequency synthesizers. Use of a Hybrid Crystal Oscillator Commercially available temperature–compensated crystal oscillators (TCXOs) or crystal–controlled data clock oscilla- tors provide very stable reference frequencies. An oscillator capable of sinking and sourcing 50 µ ...

Page 30

... GHz 2.Always program all higher order ÷A counter bits above 1.1 GHz “a” 1.1 GHz 2.0 GHz www.lansdale.com LANSDALE Semiconductor, Inc. frequency into the prescaler frequency into the phase detector NT max = N max • max frequency synthesizer device • Issue A ...

Page 31

... LANSDALE Semiconductor, Inc. 3. Assume the ÷N counter and the ÷A counter (with all the higher order bits above “a” ignored) combined into a single binary counter bits in length (n = number of divider stages in the ÷N counter). The MSB of this “hypothetical” counter is to correspond to the MSB of ÷ N and the LSB is to Page correspond to the LSB of ÷ ...

Page 32

... SEATING PLANE www.lansdale.com LANSDALE Semiconductor, Inc. NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: INCH. 3. DIMENSION L TO CENTER OF LEADS WHEN FORMED PARALLEL. 4. DIMENSION B DOES NOT INCLUDE MOLD FLASH. 5. ROUNDED CORNERS OPTIONAL. INCHES MILLIMETERS DIM ...

Page 33

... OUTLINE DIMENSIONS P DIP PLASTIC DIP CASE 738–03 (ML145156RP 0.25 (0.010 SOG 20 = -6P SOG PACKAGE CASE 751D–04 (MC145155-6P, MC145156-6P) 11 –B– P 10X 0.010 (0.25 SEATING –T– PLANE M K www ...

Page 34

... LANSDALE Semiconductor, Inc - 28X 0.010 (0.25) -T- G 26X Page OUTLINE DIMENSIONS P DIP PLASTIC DIP CASE 710–02 (ML145151YP, ML145152YP SEATING PLANE SO 28W = -6P SOG PACKAGE CASE 751F–04 (ML145151-6P, ML145152–6P 14X -B- 0 ...

Page 35

... Lansdale data sheets and/or specifications can vary in different applications, and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer application by the customer’s technical experts. Lansdale Semiconductor is a registered trademark of Lansdale Semiconductor, Inc. Page ...

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