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RECOMMENDED OPERATING CONDITIONS

ELECTRICAL CHARACTERISTICS

CDCVF855

SCAS839A – APRIL 2007 – REVISED MAY 2007

MIN

NOM

MAX

UNIT

VDDQ PC1600 – PC3200

2.3

2.7

Supply voltage

V

AVDD

VDDQ – 0.12

2.7

CLK, CLK, FBIN, FBIN

VDDQ/2 – 0.18

VIL

Low-level input voltage

V

PWRDWN

–0.3

0.7

CLK, CLK, FBIN, FBIN

VDDQ/2 + 0.18

VIH

High-level input voltage

V

PWRDWN

1.7

VDDQ + 0.3

DC input signal voltage(1)

–0.3

VDDQ + 0.3

V

VDDQ = 2.3 V – 2.7V

0.36

VDDQ + 0.6

DC

CLK, FBIN

VDDQ = 2.425 V – 2.7 V

0.25

VDDQ + 0.6

VID

Differential input signal voltage(2)

V

VDDQ = 2.3 V – 2.7 V

0.7

VDDQ + 0.6

AC

CLK, FBIN

VDDQ = 2.425 V – 2.7 V

0.49

VDDQ + 0.6

Input differential pair cross

VIX

VDDQ/2 – 0.2

VDDQ/2 + 0.2

V

voltage(3)(4)

IOH

High-level output current

–12

mA

IOL

Low-level output current

12

mA

SR

Input slew rate

1

4

V/ns

TA

Operating free-air temperature

–40

85

°C

(1)

The unused inputs must be held high or low to prevent them from floating.

(2)

The dc input signal voltage specifies the allowable dc execution of the differential input.

(3)

The differential input signal voltage specifies the differential voltage |VTR – VCP| required for switching, where VTR is the true input

level and VCP is the complementary input level.

(4)

The differential cross-point voltage is expected to track variations of VCC and is the voltage at which the differential signals must cross.

over recommended operating free-air temperature range (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP (1)

MAX

UNIT

VIK

Input voltage, all inputs

VDDQ = 2.3 V, II = –18 mA

–1.2

V

VDDQ = min to max, IOH = –1 mA

VDDQ – 0.1

VOH

High-level output voltage

V

VDDQ = 2.3 V, IOH = –12 mA

1.7

VDDQ = min to max, IOL = 1 mA

0.1

VOL

Low-level output voltage

V

VDDQ = 2.3 V, IOL = 12 mA

0.6

VOD

Output voltage swing (2)

1.1

VDDQ – 0.4

V

Differential outputs are terminated with 120

Ω,

Output differential cross-voltage

CL = 14 pF (See Figure 3)

VOX

VDDQ/2 – 0.1

VDDQ/2 VDDQ/2 + 0.1

V

(3)

II

Input current

VDDQ = 2.7 V, VI = 0 V to 2.7 V

±10

µA

High-impedance-state output

IOZ

VDDQ = 2.7 V, VO = VDDQ or GND

±10

µA

current

Power-down current on VDDQ +

CLK and CLK = 0 MHz; PWRDWN = Low;

Σ of

IDDPD

20

100

µA

AVDD

IDD and AIDD

fO = 170 MHz

6

8

AIDD

Supply current on AVDD

mA

fO = 200 MHz

8

10

CI

Input capacitance

VDDQ = 2.5 V, VI = VDDQ or GND

2

2.5

3.5

pF

(1)

All typical values are at a nominal VDDQ.

(2)

The differential output signal voltage specifies the differential voltage |VTR – VCP|, where VTR is the true output level and VCP is the

complementary output level.

(3)

The differential cross-point voltage tracks variations of VDDQ and is the voltage at which the differential signals must cross.

4

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