ABV0235/-37/-38/-39

750kHz – 800MHz Low Phase Noise Multiplier VCXO

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 4

2. Crystal Specifications

PARAMETERS

SYMBOL

CONDITIONS

MIN.

TYP.

MAX.

UNITS

Crystal Resonator Frequency

Parallel Fundamental Mode

12

25

MHz

Crystal Loading Rating

At VCON = 1.65V

9.5

pF

Crystal Pullability

AT cut

250

-

Recommended ESR

AT cut

30

Ω

Note: Crystal Loading rating: 9.5pF is the loading the crystal sees from the VCXO chip at VCON = 1.65V. It is assumed that the crystal will be at nomi-

nal frequency at this load. If the crystal requires more load to be at nominal frequency, the additional load must be added externally. This however may

reduce the pull range.

3. Voltage Control Crystal Oscillator

PARAMETERS

SYMBOL

CONDITIONS

MIN.

TYP.

MAX.

UNITS

VCXO Stabilization Time *

From power valid

10

ms

VCXO Tuning Range

0V

≤ VCON ≤ 3.3V

500

ppm

CLK output pullability

VCON=1.65V,

±1.65V

±200

ppm

VCXO Tuning Characteristic

150

ppm/V

Pull range linearity

10

%

VCON pin input impedance

2000

k

Ω

VCON modulation BW

0V

≤ VCON ≤ 3.3V, -3dB

25

kHz

Note: Parameters denoted with an asterisk (*) represent nominal characterization data and are not production tested to any specific limits.

4. General Electrical Specifications

PARAMETERS

SYMBOL

CONDITIONS

MIN.

TYP.

MAX.

UNITS

Fout<24MHz

25/25/15

24MHz<Fout<96MHz

65/45/30

Supply Current,

Dynamic (with

Loaded Outputs)

PECL/LVDS/CMOS

96MHz<Fout<800MHz

100/80/40

mA

Operating Voltage

2.97

3.63

V

Output Clock

Duty Cycle

@ 1.25V (LVDS)

@

45

45

45

50

50

50

55

55

55

%

Short Circuit

Current

±50

mA