2

PI6CFGL402B

Low Power PCIe 3.0 Clock Generator with 4 HCSL Outputs

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www.pericom.com

03/03/15

Pin Description

Pin #

Pin Name

I/O Type

Description

1

VDDA3.3

Power

3.3V power for PLL core.

2

S0

Input

Spread Spectrum Select pin #0. See Spread Selection Table. Internal pull-up resistor.

3

S1

Input

Spread Spectrum Select pin #1. See Spread Selection Table. Internal pull-up resistor.

4

S2

Input

Spread Spectrum Select pin #2. See Spread Selection Table. Internal pull-up resistor.

5

X1

Input

Crystal connection.

6

X2

Output

Crystal connection.

7

PD

Input

Power down. Internal pull-up resistor.

8

OE

Input

Output enable. Tri-states output (High=enable outputs); Low=disable outputs). Internal pull-

up resister.

9

GNDXD

Power

Connect to digital circuit ground.

10

VDDDIG3.3

Power

3.3V digital power.

11

CLK3

Output

Selectable 100/200 MHz Spread Spectrum differential compliment output clock 3. LOW

when output is disabled.

12

CLK3

Output

Selectable 100/200 MHz Spread Spectrum differential true output clock 3. LOW when output

is disabled.

13

CLK2

Output

Selectable 100/200 MHz Spread Spectrum differential compliment output clock 2. LOW

when output is disabled.

14

CLK2

Output

Selectable 100/200 MHz Spread Spectrum differential true output clock 2. LOW when output

is disabled.

15

VDDO

Power

Output power supply, nominal 1.8V, range 1.05V~3.3V.

16

GNDA

Power

Output and Analog circuit ground

17

CLK1

Output

Selectable 100/200 MHz Spread Spectrum differential compliment output clock 1. LOW

when output is disabled.

18

CLK1

Output

Selectable 100/200 MHz Spread Spectrum differential true output clock 1. LOW when output

is disabled.

19

CLK0

Output

Selectable 100/200 MHz Spread Spectrum differential compliment output clock 0. LOW

when output is disabled.

20

CLK0

Output

Selectable 100/200 MHz Spread Spectrum differential true output clock 0. LOW when output

is disabled.

Table 2: Spread Selection Table

S2

S1

S0

Spread %

Spread Type

Output Frequency

0

0

0

-0.5

Down

100

0

0

1

-1.0

Down

100

0

1

0

-1.5

Down

100

0

1

1

No Spread

Not Applicable

100

1

0

0

-0.5

Down

200

1

0

1

-1.0

Down

200

1

1

0

-1.5

Down

200

1

1

1

No Spread

Not Applicable

200

15-0032