MC145181 Ver la hoja de datos (PDF) - Motorola => Freescale

Número de pieza

componentes Descripción

Fabricante

MC145181

Dual 550/60 MHz PLL Frequency Synthesizer with DACs and Voltage Multiplier

Motorola => Freescale 

1. BLOCK DIAGRAM

fin 12 +

fin 13 – Amp

Osce 1

32

Oscb

Oscillator

Mode 10

fini 30

Amp

Enb 5

Din 6

Clk 7

Freescale SMeCm14i5c1o8n1 ductor, Inc.

C Register

8 Bits

PLL Stby

PLLi Stby

PD Float

PDi Float

Osc Stby

N Register 3

24 Bits

18

N Counter

18 Stages

R Counter

16 Stages

16

R Register

16 Bits

16

Hr Register

16 Bits

2

3

Ri Register

24 Bits

16

Ri Counter

16 Stages

2

Test

Ni Counter

13 Stages

13

Ni Register

13 Bits

13 MSBs

Hni Register

16 Bits

Out C

Out B/Ref

PLL Stby

Out A

fR

fRi

Ph Det Pulse

Output A

Mux

16 Output C

25 Output B

9 Output A

Function

Timer

fV

Phase /

Frequency

Detector,

Timer,

fR and Control

Lo–I Gain

Polarity

High–

current

Charge

Pump

19 PDout–Hi

17 Rx

Low–

current

Charge

Pump

20 PDout–Lo

Window

Supply Current

Minimization

Circuit

Osc

V–Mult Voltage

Control Multiplier

and Regulator

21 Cmult

22 Creg

Lock

Detector

8

LD

Lock

Detectori

Ratio

Auxiliary

Divider

3 Stages

fRi

Phase / 23

Frequency

PDouti

fVi

Detectori

Polarity

i

28 fout/Poli

27 fout/Pol

D Register

8

16 Bits

8

Shift Register and

Address Generator

Power Connections:

Pin 2 = DAC Vpos

Pins 11, 24, 26, and 29 = Vpos

Pins 14, 15, 18, and 31 = Gnd

DAC

8 Bits

DAC

8 Bits

3 DAC1

2 DAC Vpos

4 DAC2

MOTOROLA RF/IF DEVICE DATA For More Information On This Product,

3

Go to: www.freescale.com

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