TD-020815 Rev. D

PWR

Supply

mA

M

VM

OSC.

pin 1

pin 14

pin 7

pin 8

O/P Load

incl Probe Cl

OUT

GND

OUT

Vdd

Option

Specifications subject to change without notice.

Designed to meet today's

requirements for tighter

frequency stability tolerance

while reducing unit cost.

4 Pin SMD,

3.3V & 5V, HCMOS/TTL

CXOHD4 / CXOHVD4 Model

1MHz to 38.88MHz

±1ppm to ±5ppm

±0.5ppm Max

±0.3ppm Max

-40°C to 85°C

-55°C to 120°C

3.3V or 5V ± 5%

±3ppm Min

Voltage Trim Pin 1

15mA Typ, 30mA Max

HCMOS/TTL

40/60% Max @ 50% Vdd

45/55% Max

4ns Typ, 10ns Max

"0" = 10% Vdd Max

"1" = 90% Vdd Min

15pF/10TTL Max

-100dBc/Hz

-130dBc/Hz

-140dBc/Hz

-145dBc/Hz

-150dBc/Hz

<1ppm Max/yr

Frequency Range:

Frequency Stability:

Freq. Stability vs Volt:

Freq. Stability vs Load:

Temperature Range:

Storage:

Input Voltage:

Mech. Trim. Range:

(Option V)

Input Current:

Output:

Symmetry:

(Option Y)

Rise/Fall Time:

Output Voltage:

Load:

Phase Noise Typ.:

10Hz

100HZ

1KHz

10KHz

100KHz

Aging:

CXOHD4

CXOHVD4 - B C 3 Y - 25.000

Crystek Part Number Guide

#6

#1 Crystek TCXO 4 Pin SMD HCMOS/TTL

#2 V or blank = (V = Volt.Trim) (Blank = Mech. Trim)

#3 Letter = Operating Temperature (see table 1)

#4 Letter = Frequency Stability (see table 1)

#5 3 or blank = Input Volt (3 = 3.3 volts) (Blank= 5V)

#6 Y or blank = Symmetry (Y=45/55) (Blank = 40/60)

#7 Frequency in MHz: 3 or 6 decimal places

Example:

CXOHD4-BC3Y-25.000 = mech. trim, -10/60, ±2.5ppm, 3.3V, 45/55%, 25.000MHz

CXOHVD4-BCY-25.000 = volt. trim, -10/60,±2.5ppm, 3.3V, 45/55%, 25.000MHz

#1

#3

#4

#5

#7

#2

Table 1

Operating

Temperature

Freq. Stability (± ppm)

0°C to 50°C

-10°C to 60°C

-10°C to 70°C

-20°C to 70°C

-30°C to 60°C

-30°C to 70°C

-30°C to 75°C

-40°C to 85°C

1.5

2.0

2.0

2.0

2.0

2.5

2.5

2.5

2.5

2.5

2.5

3.0

3.0

3.0

3.0

3.0

3.0

3.0

4.0

4.0

4.0

4.0

4.0

4.0

4.0

4.0

5.0

5.0

5.0

5.0

5.0

5.0

5.0

5.0

AB

C

D

E

F

A

B

C

D

E

F

G

H

1.0

P

2.5

3.0

2.0

2.0

2.0

All dimensions are Max unless otherwise specified.

Dimensions inches (mm)

± 5ppm Min

(5V) 2.5V ± 2.5V

(3.3V) 1.65V ± 1.65V

Voltage Trim Pin 1:

Control Voltage:

VCTCXO Specification

CRYSTEK

Freq

DC

.732

(18.60)

.480

(12.20)

.878

(22.3)

.177

(4.5)

.614 ±.020

(15.6 ±0.5)

.311 ±.020

(7.9 ±0.5)

#2

#3

#4

.019 ±.004

(0.5 ±0.1)

#1

Bottom

View

.197

(5.0)

.157

(4.00)

PIN

Function

1

2

3

4

VT or NC

GND

OUT

Vcc

Temperature Compensated

Crystal Oscillator

Voltage Trim Option

Available

Le

ad

Fre

e

Ro

HS

Co

mp

lian

t