ABX0235/37/38/39

750kHz – 800MHz Low Phase Noise Multiplier XO

Universal Low Phase Noise IC’s

30332 Esperanza., Rancho Santa Margarita, Ca 92688 Ph: 949-546-8000 Fax: 949-546-8001 www.Abracon.com 03/21/05 Page 3

PIN DESCRIPTIONS ABX0237/39 (see previous page of ABX0235/38)

Name

TSSOP

Pin number

3x3mm QFN

Pin number

Type

Description

XIN

2

12

I

Crystal input. See Crystal Specifications on page 3.

XOUT

3

13

I

Crystal output. See Crystal Specifications on page 3.

OE

6

16

I

Output enable pin (see OE logic state table on page 1).

GND

7,8,9,10,14

1,2,3,4,8

P

Ground.

CLKT

11

5

O

True output LVDS (ABX0239)

(N/C for ABX0237)

CLKC

13

7

O

Complementary output LVDS (ABX0239)

(CMOS out for ABX0237).

SEL0

16

10

I

SEL1

15

9

I

SEL2

5

15

I

SEL3

4

14

I

Multiplier selector pins. These pins have an internal pull-up

that will default SEL to ‘1’ when not connected to GND.

VDD

1, 12

6,11

P

Power Supply.

ELECTRICAL SPECIFICATIONS

1. Absolute Maximum Ratings

PARAMETERS

SYMBOL

MIN.

MAX.

UNITS

Supply Voltage

4.6

V

Input Voltage, dc

-0.5

V

Output Voltage, dc

-0.5

V

Storage Temperature

-65

150

°C

Ambient Operating Temperature*

-40

85

°C

Junction Temperature

125

°C

Lead Temperature (soldering, 10s)

260

°C

ESD Protection, Human Body Model

2

kV

Exposure of the device under conditions beyond the limits specified by Maximum Ratings for extended periods may cause permanent damage to the

device and affect product reliability. These conditions represent a stress rating only, and functional operations of the device at these or any other con-

ditions above the operational limits noted in this specification is not implied.

* Note: Operating Temperature is guaranteed by design for all parts (COMMERCIAL and INDUSTRIAL), but tested for COMMERCIAL grade only.

2. Crystal Specifications

PARAMETERS

SYMBOL

CONDITIONS

MIN.

TYP.

MAX.

UNITS

Crystal Resonator Frequency

Parallel Fundamental Mode

12

25

MHz

Crystal Loading Rating

20

pF

Recommended ESR

AT cut

30

Ω