Specifications subject to change without notice. All dimensions in inches. © Copyright 2008 The Connor-Winfield Corporation

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01 May 2009

5x7mm Surface Mount

High Precision

TCXO

The Connor-Winfield D75A

5x7mm Surface Mount

Temperature Compensated

Crystal Controlled Oscillators

(TCXO) with a

output. Through the use of

Analog Temperature Compensation, the

D75A

capable of holding sub

-

ppm stabilities over the 0 to 70

temperature range.

’s

S

is a

clipped

sinewave

S is

0.25

°C

Model D75AS

TCXO

3.3V Operation

Clipped Sinwave Output

Frequency

:

Temperature Range:

Low Jitter <1pS RMS

Tri-State Enable/Disable Function

5x7mm Surface Mount Package

Tape and Reel Packaging

RoHS Compliant / Lead Free

Stability ±0.25ppm

0 to 70°C

2111 Comprehensive Drive

Aurora, Illinois 60505

Phone: 630-851-4722

Fax: 630-851-5040

www.conwin.com

US Headquarters

630-851-4722:

European Headquarters:

+353-61-472221

D75AS

0847

20.0MHz

Description

Features

In Stock at Digi-Key

Note:

1)

Initial calibration @ 25

°C. Specifications at time of shipment after 48 hours of operation

2)

Frequency stability vs. change in temperature.

3)

Frequency change after reciprocal temperature ramped over the operating range. Frequency measured before

and after at 25°C.

4)

Within two hours after reflow.

5)

Inclusive of calibration @ 25

°C, frequency vs. change in temperature, change in supply voltage (±5%), load

change (±5%), reflow soldering process and 20 years aging, referenced to Fo.

6)

Leave Pad 8 unconnected if enable / disable function is not required. When tri-stated, the output stage is

disabled but the oscillator and compensation circuit are still active (current consumption < 1mA).

7)

Output is AC coupled.

8)

For best performance it is recommended that the circuit connected to this output should have an equivalent

input capacitance of 10pF.

Specifications

Absolute Maximum Ratings

Parameter

Minimum

Nominal

Maximum

Units

Note

Storage Temperature

-55

-

85

°C

Supply Voltage

(Vcc)

-0.5

-

6.0

Vdc

Input Voltage

-0.5

-

Vcc+0.5

Vdc

Operating Specifications

Parameter

Minimum

Nominal

Maximum

Units

Note

Center Frequency

(Fo)

20.0

MHz

Frequency Calibration @ 25

°C

-1.00

-

1.00

ppm

1

Frequency Stability [±(Fmax – Fmin)/2.Fo]

-0.25

-

0.25

ppm

2

Supply Voltage Variation (Vcc ±5%)

-0.025

-

0.025

ppm

Load Coefficient (±5%)

-0.025

-

0.025

ppm

Static Temperature Hysteresis

-

-

0.40

ppm

Absolute, 3

Frequency shift after reflow soldering

-1.00

-

1.00

ppm

4

Aging 1

-1.00

-

1.00

ppm

Total Frequency Tolerance

-4.60

-

4.60

ppm

5

Temperature Range

0

-

70

°C

Supply Voltage

(Vcc)

3.135

3.3

3.465

Vdc

Supply Current

(Icc)

-

-

10

mA

Period Jitter

-

3

5

ps rms

Phase Jitter (BW=12kHz to 20MHz)

-

0.5

1

ps rms

SSB Phase Noise at 10Hz offset

-

-80

dBc/Hz

SSB Phase Noise at 100Hz offset

-

-110

dBc/Hz

SSB Phase Noise at 1KHz offset

-

-135

dBc/Hz

SSB Phase Noise at >10KHz offset

-

-150

dBc/Hz

Input Characteristics For Enable / Disable Function (Pin 8)

Parameter

Minimum

Nominal

Maximum

Units

Note

Enable Voltage (High) or open circuit

(Vih)

70%Vcc

-

-

Vdc

6

Disable Voltage (Low) Output Disabled

(Vil)

-

-

30%Vcc

Vdc

Clipped Sinewave Output Characteristics

Parameter

Minimum

Nominal

Maximum

Units

Note

Output Voltage

1.00

-

-

V pk-pk

7

Output Load Resistance

-

10K

-

Ohms

Output Load Capacitance

-

10

-

pF

8