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RECOMMENDED OPERATING CONDITIONS (SEE

(1))

ELECTRICAL CHARACTERISTICS

TIMING REQUIREMENTS

CDC2536

SCAS377E – APRIL 1994 – REVISED JULY 2004

MIN

MAX

UNIT

VCC

Supply voltage

3

3.6

V

VIH

High-level input voltage

2

V

VIL

Low-level input voltage

0.8

V

VI

Input voltage

0

5.5

V

IOH

High-level output current

12

mA

IOL

Low-level output current

12

mA

TA

Operating free-air temperature

0

70

°C

(1)

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

over recommended operating free-air temperature range, T

A = 25°C (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

MAX

UNIT

VIK

VCC = 3 V,

II = -18 mA

1.2

V

VCC-

VCC = MIN to MAX

(1),

IOH = -100 µA

0.2

VOH

V

VCC = 3 V,

IOH = -12 mA

2

VCC = 3 V,

IOL = 100 µA

0.2

VOL

V

VCC = 3 V,

IOL = 12 mA

0.8

VCC = 0 or MAX

(1),

VI = 3.6 V

±10

II

µA

VCC = 3.6 V,

VI = VCC or GND

±1

IOZH

VCC = 3.6 V,

VO = 3 V

10

µA

IOZL

VCC = 3.6 V,

VO = 0

10

µA

Outputs high

2

ICC

VCC = 3.6 V, IO = 0, VI = VCC or GND

Outputs low

2

mA

Outputs disabled

2

Ci

VI = VCC or GND

6

pF

Co

VO = VCC or GND

9

pF

(1)

For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions.

over recommended ranges of supply voltage and operating free-air temperature

MIN

MAX

UNIT

When VCO is operating at four times the CLKIN frequency

25

50

fclock

Clock frequency

MHz

When VCO is operating at double the CLKIN frequency

50

100

Duty cycle, CLKIN

40%

60%

After SEL

50

After OE

↓

50

Stabilization time(1)

µs

After power up

50

After CLKIN

50

(1)

Time required for the integrated PLL circuit to obtain phase lock of its feedback signal to its reference signal. For phase lock to be

obtained, a fixed-frequency, fixed-phase reference signal must be present at CLKIN. Until phase lock is obtained, the specifications for

propagation delay and skew parameters given in the switching characteristics table are not applicable.

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