High-Precision Clock Generators

with Integrated VCXO

2

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ABSOLUTE MAXIMUM RATINGS

DC ELECTRICAL CHARACTERISTICS

(VDDA = VDD = VDDQ = 2.4V to 3.6V, and VDDQ = 1.4V to 1.6V for MAX9451, TA = -40°C to +85°C. Typical values at VDDA = VDD =

VDDQ = 3.3V, and VDDQ = 1.5V for MAX9451, TA = +25°C, unless otherwise noted.)

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional

operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to

absolute maximum rating conditions for extended periods may affect device reliability.

VDD to GND ...........................................................-0.3V to +4.0V

VDDA to GNDA ......................................................-0.3V to +4.0V

All Other Pins to GND ...................................-0.3V to VDD + 0.3V

Short-Circuit Duration (all pins) ..................................Continuous

Continuous Power Dissipation (TA = +85°C)

32-Pin TQFP (derate 27.8mW/°C above +70°C)........2222mW

Storage Temperature Range .............................-65°C to +165°C

Maximum Junction Temperature .....................................+150°C

Operating Temperature Range ...........................-40°C to +85°C

Lead Temperature (soldering, 10s) .................................+300°C

ESD Protection

Human Body Model (RD = 1.5k

Ω, CS = 100pF) ..............±2kV

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

LVCMOS INPUT (SEL_,

CMON, OE, MR)

Input High Level

VIH1

2.0

VDD

V

Input Low Level

VIL1

0

0.8

V

Input Current

IIN1

VIN = 0V to VDD

-50

+50

µA

LVCMOS OUTPUT (INT,

LOCK)

Output High Level

VOH1

IOH1 = -4mA

VDD

- 0.4

V

Output Low Level

VOL1

IOL1 = 4mA

0.4

V

THREE-LEVEL INPUT (AD0, AD1)

Input High Level

VIH2

1.8

V

Input Low Level

VIL2

0.8

V

Input Open Level

VIO2

Measured at the opened inputs

1.05

1.35

V

Input Current

IIL2, IIH2

VIL2 = 0V or VIH2 = VDD

-15

+15

µA

DIFFERENTIAL INPUTS (IN0, IN1)

Differential Input High Threshold

VIDH

VID = VIN+ - VIN-

50

mV

Differential Input Low Threshold

VIDL

VID = VIN+ - VIN-

-50

mV

Common-Mode Input-Voltage Range

VCOM

VID = VIN+ - VIN-

|VID / 2|

2.4

- |VID / 2|

V

Input Current

IIN+, IIN-

-1

+1

µA

MAX9450 OUTPUTS (CLK0, CLK1) (LVPECL)

Output High Voltage

VOH2

50

Ω load connected to VDDQ - 2.0V

VDDQ

- 1.42

VDDQ

- 1.00

V

Output Low Voltage

VOL2

50

Ω load connected to VDDQ - 2.0V

VDDQ

- 2.15

VDDQ

- 1.70

V

MAX9451 OUTPUTS (CLK0, CLK1) (differential HSTL)

Output High-Level Voltage

VOH3

With 50

Ω load resistor to GND, Figure 1

VDDQ

- 0.4V

VDDQ

V

Output Low-Level Voltage

VOL3

With 50

Ω to GND and 16mA sink current

0.4

V

MAX9452 OUTPUTS (CLK0, CLK1) (LVDS)

Differential Output Voltage

VOD

With a total 100

Ω load, Figure 1

300

370

450

mV

Change in VOD Between

Complementary Output States

ΔVOD

10

35

mV