ICS9220B

Programmable Rambus

10

DC Characteristics - Inputs

TA = -40°C to +85°C; Supply Voltage AVDD2.5, VDD2.5 = 2.5 V +/- 5% (unless otherwise stated)

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

2.375

2.625

V

0.6

0.95

V

-0.15

0.15

V

0.2

0.55

V

0.15

V

0.35

V

0.3

2.625

V

-0.15

0.3

V

1.4

2.625

V

-0.15

0.8

V

1.4

3.465

2

V

-0.15

0.8

V

Notes:

1

2

This range of SMBus input high voltages allows the 9220 to co-exist with 3.3V, 2.5V and 1.8V devices on

the same SMBus.

PARAMETER

Supply Voltage

High-level input voltage

Low-level input voltage

Crossing point voltage

Difference in crossing point voltage

Input threshold voltage

High-level input voltage for single-ended

CLK_IN

Low-level input voltage - SMBus

CLK_INT, CLK_INC

Singled-ended CLK_IN

1

OE, AS1, AS2, BYPASS#/PLL

SMBCLK, SMBDAT

Low-level input voltage for single-ended

CLK_IN

High-level input voltage

Low-level input voltage

High-level input voltage - SMBus

SYMBOL

CONDITION

MIN

TYP

MAX

UNITS

f = 400 to 635 MHz

-40

ps

f = 635 to 800 MHz

-30

ps

Tjcyc-cyc

100

ps

DC

45

55

%

20% to 80% of output voltage

140

300

ps

20% to 80% of output voltage

-

100

ps

2

1000

-

Ω

Notes:

1

2

AC Characteristics-Outputs

PARAMETER

1

Cycle-to-cycle Jitter

Duty cycle

Short term jitter (over 1 to 6 clock cycles)

Guaranteed by design and characterization, not 100% tested in production

Zout is defined at the output pins.

Dynamic output impedance

Output rise and fall times

Difference between output rise and fall

time on same pin of a single device

2