UMA1005 datasheet(3/24 Pages) PHILIPS

Part #	UMA1005

Description	Dual low-power frequency synthesizer

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Manufacturer	PHILIPS [NXP Semiconductors]

Direct Link	http://www.nxp.com

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3 / 24 page

November 1994

3

Philips Semiconductors

Preliminary speciﬁcation

Dual low-power frequency synthesizer

UMA1005T

BLOCK DIAGRAM

/1 page = 296 mm (Datasheet)

27 mm

MEA668 - 1

PRESCALER

FEEDBACK

NORMAL

OUTPUT

CHARGE

PUMP

SPEED-UP

OUTPUT

CHARGE

PUMP

INTEGRAL

OUTPUT

CHARGE

PUMP

AUXILIARY

OUTPUT

CHARGE

PUMP

CN

8

CL

2

CK

4

MAIN

REFERENCE

SELECT

SM

2

MAIN

PHASE

DETECTOR

EM

2

AUXILIARY

REFERENCE

SELECT

SA

2

AUXILIARY

PHASE

DETECTOR

EA

2

NF

3

FMOD

FRACTIONAL

ACCUMULATOR

FRD

NM4

4

NM2

NM3

8

NM1

12

PR

2

MAIN DIVIDERS

EM

2

3

6

5

4

EM + EA

7

EA

8

REFERENCE DIVIDER

NR

12

PA

NA

12

AUXILIARY DIVIDER

41

17

10

9

11

13

18

19

16

15

FB1

FB2

RF

RN

PHP

PHI

RA

PHA

LOCK

20

12

14

1

VDDD

VDDA

VSS

VSSA

INA

INR

INM2

INM1

STROBE

CLOCK

DATA

UMA1005T

SERIAL INPUT + PROGRAM LATCHES

Fig.1 Block diagram.

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UMA1005 Datasheet(PDF) 3 Page - NXP Semiconductors

UMA1005 Datasheet(HTML) 3 Page - NXP Semiconductors

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