CDCVF857

2.5V PHASELOCK LOOP CLOCK DRIVER

SCAS047D − MARCH 2003 − REVISED JUNE 2005

6

POST OFFICE BOX 655303

recommended operating conditions (see Note 5)

MIN

TYP

MAX

UNIT

Supply voltage

VDDQ

PC1600 − PC3200

2.3

2.7

V

Supply voltage

AVDD

VDDQ − 0.12

2.7

V

Low-level input voltage, VIL

CLK, CLK, FBIN, FBIN

VDDQ/2 – 0.18

V

Low-level input voltage, VIL

PWRDWN

−0.3

0.7

V

High-level input voltage, VIH

CLK, CLK, FBIN, FBIN

VDDQ/2 + 0.18

V

High-level input voltage, VIH

PWRDWN

1.7

VDDQ + 0.3

V

DC input signal voltage (see Note 5)

–0.3

VDDQ + 0.3

V

Differential input signal voltage, VID (see Note 6)

dc

CLK, FBIN

0.36

VDDQ + 0.6

V

Differential input signal voltage, VID (see Note 6)

ac

CLK, FBIN

0.7

VDDQ + 0.6

V

Input differential pair cross voltage, VIX (see Notes 7 and 8)

VDDQ/2 – 0.2

VDDQ/2 + 0.2

V

High-level output current, IOH

−12

mA

Low-level output current, IOL

12

mA

Input slew rate, SR

1

4

V/ns

Operating free-air temperature, TA

−40

85

°C

NOTES:

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

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

7. 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.

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

be crossing.

electrical characteristics over recommended operating free-air temperature range (unless

otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP†

MAX

UNIT

VIK

Input voltage

All inputs

VDDQ = 2.3 V, II = –18 mA

–1.2

V

VOH

High-level output voltage

VDDQ = min to max, IOH = –1 mA

VDDQ – 0.1

V

VOH

High-level output voltage

VDDQ = 2.3 V, IOH = –12 mA

1.7

V

VOL

Low-level output voltage

VDDQ = min to max, IOL = 1 mA

0.1

V

VOL

Low-level output voltage

VDDQ = 2.3 V, IOL = 12 mA

0.6

V

VOD

Output voltage swing}

Differential outputs are terminated with

1.1

VDDQ – 0.4

V

VOX

Output differential cross-voltagew

Differential outputs are terminated with

120

Ω /CL = 14 pF (See Figure 3)

VDDQ/2 – 0.1 VDDQ/2

VDDQ/2 + 0.1

V

II

Input current

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

±10

µA

IOZ

High-impedance state output current

VDDQ = 2.7 V, VO= VDDQ or GND

±10

µA

IDDPD

Power-down current on

VDDQ + AVDD

CLK and CLK = 0 MHz;

PWRDWN = Low;

Σ of IDD and AIDD

20

100

µA

AIDD

Supply current on AVDD

fO = 170 MHz

6

8

mA

AIDD

Supply current on AVDD

fO = 200 MHz

8

10

mA

CI

Input capacitance

VDDQ = 2.5 V, VI = VDDQ or GND

2

2.5

3.5

pF

† All typical values are at a respective nominal VDDQ.

‡ 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.

§ The differential cross-point voltage is expected to track variations of VDDQ and is the voltage at which the differential signals must be crossing.