S1M8821 datasheet(3/22 Pages) SAMSUNG

Part #	S1M8821

Description	INTERGER RF/IF DUAL PLL

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Manufacturer	SAMSUNG [Samsung semiconductor]

Direct Link	http://www.samsung.com/Products/Semiconductor

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INTERGER RF/IF DUAL PLL

S1M8821/22/23

3

BLOCK DIAGRAM

NOTE: The pin numbers above are for 20-TSSOP package.

1

2

3

4

5

6

7

8

9

10

20

19

18

17

16

15

14

13

12

11

foLD

Data Out

Multiplexer

RF

LD

RF

Phase

Detector

RF

Charge

Pump

IF

LD

IF

Phase

Detector

IF

Charge

Pump

+–

RF Prescaler

Prescaler

Control

RF

Programmable

Counter

RF N-Latch

RF R-Latch

RF Reference

Counter

IF Reference

Counter

20-bit Shift Register

IF R-Latch

IF N-Latch

2-bit

Control

–+

IF Prescaler

Prescaler

Control

IF

Counter

Programmable

VDD1

VP1

CPoRF

GND

finRF

GND

OSCin

GND

foLD

VDD2

VP2

CPoIF

GND

finIF

GND

LE

DATA

CLOCK

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S1M8821 Datasheet(PDF) 3 Page - Samsung semiconductor

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