Surface Mount Oscillator, TCXO, TCVCXO

I521 / I522 / I721 / I722 Series *

Metal Package, 11 mm x 18 mm

ILSI America Phone: 775-851-8880 • Fax: 775-851-8882• e-mail: e-mail@ilsiamerica.com • www.ilsiamerica.com

07/08

Specifications subject to change without notice

F1

I522 / I722

I521 / I721

Frequency

1.000 MHz to 40.000 MHz

10.000 MHz to 40.000 MHz

Output Level

HC-MOS / TTL

Clipped Sine

Level

‘0’ = 0.1 Vcc Max., ‘1’ = 0.9 Vcc Min.

1.0 V p-p Min.

Duty Cycle

50%

± 10%

Rise / Fall Time

10 nS Max.

Output Load

15 pF, Fo < 50 MHz = 10 TTL, Fo > 50 MHz = 5 LSTTL

20K Ohms / 10 pF

Frequency Stability

See Frequency Stability Table

Frequency Stability at +25

° C

± 1 ppm (I521 and I522)

Aging

± 1 ppm / Year Max.

Supply Voltage

See Supply Voltage Table, tolerance

±5 %

Current

50 mA Max. **

3 mA Max.

Control Voltage (I721 / I722)

1.65 VDC

± 1.5 VDC, ±5 ppm Min. for Vcc = 3.3 VDC, 2.5 VDC ± 2.0 VDC, ±5 ppm Min. for Vcc = 5.0 VDC

Slope

Positive

Temperature

Operating

See Operating Temperature Table

Storage

-40

° C to +85° C

Environmental

See Appendix B for information

Package Information

MSL = 2a, Termination = e1

* I522 = HC-MOS TCXO, I521 = Clipped Sine TCXO, I722 = HC-MOS TCVCXO, I721 = Clipped Sine TCVCXO

NOTE: A 0.01 µF bypass capacitor is recommended between Vcc (pin 4) and Gnd (pin 2) to minimize power supply noise.

* Not available for all temperature ranges. ** Frequency, supply, and load related parameters.

Part Number Guide

Sample Part Number:

I521 - 1Q3 - 20.000

Package and Output

Operating Temperature

Frequency Stability vs. Temperature

Supply Voltage

Frequency

7 = 0

° C to +50° C

*O =

±1.5 ppm

5 = 5.0 VDC

1 = 0

° C to +70° C

*P =

±2.0 ppm

3 = 3.3 VDC

3 = -20

° C to +70 C

Q =

±2.5 ppm

2 = -40

° C to +85° C

R =

±3.0 ppm

I521 -

I522 -

I721 -

I722 -

J =

±5.0 ppm

- 20.000 MHz