SL28PCIe10

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32-QFN Pin Definitions

Programmable Single ended clock

SL28PCIe10 allows flexibility of programming any frequency

at single ended output Prog_SE.

Prog_SE can be factory programmed to any frequency as

required by the end user with a 3.3V swing single ended

output. This clock can have a feature of Spread Spectrum to

reduce EMI.

Pin No.

Name

Type

Description

1

VDD

PWR 3.3V Power supply

2

VSS

GND

Ground

3

NC

NC

No Connect.

4

NC

NC

No Connect.

5

VDD_27

PWR 3.3V Power supply

6

27M_NSS

O,SE Non-spread 27MHz video clock output

7

Prog_SE

O, SE Spreadable Programmable Single-Ended clock output

8

VSS_27

GND

Ground

9

VSS_SRC

GND

Ground

10

SRC0

O, DIF 100MHz True differential serial reference clock

11

SRC0#

O, DIF 100MHz Complement differential serial reference clock

12

VSS_SRC

GND

Ground

13

SRC1

O, DIF 100MHz True differential serial reference clock

14

SRC1#

O, DIF 100MHz Complement differential serial reference clock

15

VDD_SRC_IO

PWR Scalable 3.3V to 1.05V power supply for output buffer

16

OE#_SRC2_SRC3

I

3.3V tolerance input to disable Output on Pin 7 and Pin 8

17

VDD_SRC

PWR 3.3V Power supply

18

VDD_SRC_IO

PWR Scalable 3.3V to 1.05V power supply for output buffer

19

SRC2#

O, DIF 100MHz True differential serial reference clock

20

SRC2

O, DIF 100MHz Complement differential serial reference clock

21

VSS_SRC

GND

Ground

22

SRC3#

O, DIF 100MHz True differential serial reference clock

23

SRC3

O, DIF 100MHz Complement differential serial reference clock

24

VDD_SRC

PWR 3.3V Power supply

25

CK_PWRGD/PD#

I

3.3V LVTTL input. After CK_PWRGD (active HIGH) assertion, this pin becomes a

real-time input for asserting power down (active LOW)

26

VSS_REF

GND

Ground

27

XOUT

O, SE 25MHz Crystal output

28

XIN

I

25MHz Crystal input

29

VDD_REF

PWR 3.3V Power supply for outputs and also maintains SMBUS registers during

power-down

30

REF

PD, I/O Reference 25MHz clock output

31

SDATA

I/O

SMBus compatible SDATA

32

SCLK

I

SMBus compatible SCLOCK