MC145173 View Datasheet(PDF) - Motorola => Freescale

Part Name

Description

View to exact match

MC145173

Dual-Band PLL Frequency Synthesizer with ADC and Frequency Counter

Motorola => Freescale 

BLOCK DIAGRAM

OSCin

1

OSCout 24

CLK 4

Din 3

Dout 5

ENB 2

HFin 16

VHFin 15

HF IFin 10

VHF IFin 11

OSCILLATOR

14–STAGE R COUNTER

PRESCALER

STANDBY

LOGIC

14

POL

ACQUISITION

WINDOW

DIVIDER

RESET

ACQ. WINDOW

BitGrabber

R REGISTER

2

24 BITS

SHIFT REGISTER 24

AND

CONTROL LOGIC

2

BitGrabber

C REGISTER

8 BITS

READ

RESPONSE

BitGrabber

24

N REGISTER

16 BITS

15

15–STAGE

N COUNTER

HF/VHF SELECT

F SMPL

22–STAGE F COUNTER

AND 24–BIT F REGISTER

23

REFout

(OPEN DRAIN)

fR

20

Rx

CURRENT

SOURCE/SINK

21

PHASE/FREQUENCY

DETECTOR

VHF PDout

22

OUTPUT D

14

13 OUTPUT C

OUTPUT B

12

OUTPUT A

(OPEN DRAIN)

ZONE

fV

PHASE/

FREQUENCY

DETECTOR

18

HF PDout

INPUT D 6

7

INPUT C

+

(INTERNALLY

–

CONNECTED TO VDD/3)

INPUT B 8

9

INPUT A

9

A REGISTER

PIN 17 = VDD

PIN 19 = VSS

MUX

SAMPLE

AND HOLD

6–BIT ADC

7

CONVERSION RESULT + EOC

MC145173

2

MOTOROLA

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