IDTTM/ICSTM Eight Output Differential Buffer for PCI Express (50-200MHz)

9DB801C

REV E 01/27/11

ICS9DB801C

Eight Output Differential Buffer for PCI Express (50-200MHz)

5

Pin Description for OE_INV = 1

PIN #

PIN NAME

PIN TYPE

DESCRIPTION

1

SRC_DIV#

INPUT

Active low Input for determining SRC output frequency SRC or

SRC/2.

0 = SRC/2, 1= SRC

2

VDD

POWER

Power supply, nominal 3.3V

3

GND

POWER

Ground pin.

4

SRC_IN

INPUT

0.7 V Differential SRC TRUE input

5

SRC_IN#

INPUT

0.7 V Differential SRC COMPLEMENTARY input

6

OE0#

INPUT

Active low input for enabling DIF pair 0.

1 = tri-state outputs, 0 = enable outputs

7

OE3#

INPUT

Active low input for enabling DIF pair 3.

1 = tri-state outputs, 0 = enable outputs

8

DIF_0

OUTPUT 0.7V differential true clock outputs

9

DIF_0#

OUTPUT 0.7V differential complement clock outputs

10

GND

POWER

Ground pin.

11

VDD

POWER

Power supply, nominal 3.3V

12

DIF_1

OUTPUT 0.7V differential true clock outputs

13

DIF_1#

OUTPUT 0.7V differential complement clock outputs

14

OE1#

INPUT

Active low input for enabling DIF pair 1.

1 = tri-state outputs, 0 = enable outputs

15

OE2#

INPUT

Active low input for enabling DIF pair 2.

1 = tri-state outputs, 0 = enable outputs

16

DIF_2

OUTPUT 0.7V differential true clock outputs

17

DIF_2#

OUTPUT 0.7V differential complement clock outputs

18

GND

POWER

Ground pin.

19

VDD

POWER

Power supply, nominal 3.3V

20

DIF_3

OUTPUT 0.7V differential true clock outputs

21

DIF_3#

OUTPUT 0.7V differential complement clock outputs

22

BYPASS#/PLL

INPUT

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

0 = Bypass mode, 1= PLL mode

23

SCLK

INPUT

Clock pin of SMBus circuitry, 5V tolerant.

24

SDATA

I/O

Data pin for SMBus circuitry, 5V tolerant.