SM802120UMG Ver la hoja de datos (PDF) - Micrel

Número de pieza

componentes Descripción

Fabricante

SM802120UMG

ClockWorks™ 125MHz LVDS / 125 MHz HCSL Ultra-Low Jitter Frequency Synthesizer

Micrel 

Micrel, Inc.

Pin Description

Pin Number

25, 26

28, 29

32, 33

35, 36

41, 42

1, 2

Pin Name

/Q1, Q1

/Q2, Q2

/Q3, Q3

/Q4, Q4

/Q5, Q5

/Q6, Q6

4, 5

/Q7, Q7

7, 8

/Q8, Q8

31, 37, 38

43, 44, 16

24, 39

VDDO1

VDDO2

VSSO1

Pin Type

O, (DIF)

O, (DIF)

O, (DIF)

PWR

PWR

PWR

3, 6, 40

VSSO2

10, 11, 14, 17, 20,

27, 30, 34

12, 13

9, 21, 23

TEST

VDD

VSS

(Exposed Pad)

18

XTAL_IN

PWR

PWR

PWR

I, (SE)

19

XTAL_OUT

O, (SE)

15

OE1

I, (SE)

22

OE2

I, (SE)

SM802120

Pin Level

Pin Function

LVDS

Differential Clock Outputs from Bank 1

125MHz

LVDS

HCSL

Differential Clock Outputs from Bank 2

125MHz

Differential Clock Outputs from Bank 2

125MHz

Crystal

Crystal

LVCMOS

LVCMOS

Power Supply for the Outputs on Bank 1

Power Supply for the Outputs on Bank 2

Power Supply Ground for the Outputs on Bank

1

Power Supply Ground for the Outputs on Bank

2

Factory Test Pins. Do not connect anything to

these pins.

Core Power Supply

Core Power Supply Ground. The exposed pad

must be connected to the VSS ground plane.

Crystal Reference Input, no load caps needed.

See Fig. 7.

Crystal Reference Output, no load caps

needed.

See Fig. 7.

Output Enable, Q1-Q4 disables to tri-state,

0 = Disabled, 1 = Enabled, 45KΩ pull-up

Output Enable, Q5-Q8 disables to tri-state,

0 = Disabled, 1 = Enabled, 45KΩ pull-up

Truth Table

OE1/2

0

1

OUTPUTS

Tri-state

HCSL / LVDS

September 2011

3

M9999-092911-A

hbwhelp@micrel.com or (408) 955-1690

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