Eight Output Differential Buffer for PCIe Gen 2

ICS9DB803DI

REV A

06/18/08

ICS9DB803DI

Eight Output Differential Buffer for PCIe for Gen 2

5

Pin Description for OE_INV = 1

PIN #

PIN NAME

PIN TYPE

DESCRIPTION

1SRC_DIV#

IN

Active low Input for determining SRC output frequency SRC or SRC/2.

0 = SRC/2, 1= SRC

2

VDD

PWR

Power supply, nominal 3.3V

3

GND

PWR

Ground pin.

4

SRC_IN

IN

0.7 V Differential SRC TRUE input

5

SRC_IN#

IN

0.7 V Differential SRC COMPLEMENTARY input

6OE0#

IN

Active low input for enabling DIF pair 0.

1 = tri-state outputs, 0 = enable outputs

7OE3#

IN

Active low input for enabling DIF pair 3.

1 = tri-state outputs, 0 = enable outputs

8

DIF_0

OUT

0.7V differential true clock output

9

DIF_0#

OUT

0.7V differential complement clock output

10

GND

PWR

Ground pin.

11

VDD

PWR

Power supply, nominal 3.3V

12

DIF_1

OUT

0.7V differential true clock output

13

DIF_1#

OUT

0.7V differential complement clock output

14

OE1#

IN

Active low input for enabling DIF pair 1.

1 = tri-state outputs, 0 = enable outputs

15

OE2#

IN

Active low input for enabling DIF pair 2.

1 = tri-state outputs, 0 = enable outputs

16

DIF_2

OUT

0.7V differential true clock output

17

DIF_2#

OUT

0.7V differential complement clock output

18

GND

PWR

Ground pin.

19

VDD

PWR

Power supply, nominal 3.3V

20

DIF_3

OUT

0.7V differential true clock output

21

DIF_3#

OUT

0.7V differential complement clock output

22

BYPASS#/PLL

IN

Input to select Bypass(fan-out) or PLL (ZDB) mode

0 = Bypass mode, 1= PLL mode

23

SCLK

IN

Clock pin of SMBus circuitry, 5V tolerant.

24

SDATA

I/O

Data pin for SMBus circuitry, 5V tolerant.