120ABD [CTS]

Oscillator;


型号：	120ABD
厂家：	CTS
描述：	Oscillator
文件：	总2页 (文件大小：45K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

Model 120

DAC Controlled OCXO

C T S R e e v e s

F R E Q U E N C Y P R O D U C T S

Features:

• Internal 12 BIT Serial DAC

• Small Size

• High Stability

• Digitally Adjustable

The Model 120 features an internal 12 BIT digital to

analog converter (DAC) which is serially addressable.

The inclusion of the DAC in the OCXO adds additional

ambient temperature control to this device, thus mini-

mizing frequency error due to DAC reference voltage

changes.

Electrical Specifications:

Available Frequencies

Parameter

4.8, 32.768 MHz

Input Voltage

+12.0 Vdc ±30%

Supply Current - Warm-up

10 Watts max.

4 Watts Typical

Steady State @ -40°C

Output

Load

HCMOS Compatible

20 pf

Warm-up

±5 x 10^-8in 15 minutes

Referenced to the frequency @ 1 hr.

Offset

Level (dBc/Hz)

-115

Phase Noise

(1 Hz Bandwidth)

@8.192 MHz

1 Hz

100 Hz

1 kHz

-140

-145

10 kHz

-145

Frequency vs Power Supply (±5%)

±5 x 10^-9

Digital Frequency Adjust

DAC Type

12 BIT Serial, MSB first Format

Sufficient for 15 years

±10%

Tuning Range

Tuning Linearity

113

400 REIMANN AVE. • SANDWICH, IL 60548

Phone: 815-786-8411 • Fax: 815-786-3600 • E-Mail: www.ctsreeves.com

Model 120

DAC Controlled OCXO

C T S R e e v e s

F R E Q U E N C Y P R O D U C T S

2.10 SQUARE MAX

1.600

.110 MIN

1.00 MAX

.025 MIN

Pin Connections

.800

FUNCTION

RF OUTPUT

FUNCTION

GROUND. CASE

.800

.600

.400

RF OUTPUT

+19 TO +26V OSC

GROUND, CASE

+19 TO +26V OSC

CLK - CLOCK

1.600

SDI - SERIAL DATA IN ^{CLK - CLOCK}

SDI - SERIAL DATA IN

LD - LOAD STROBE LD - LOAD STROBE

N/C - CTS USE

PIN NUMBERS FOR REFERENCE

AND NOT MARKED ON UNIT.

INSULATING SPACER

.040 ±.005

(7) PLACES

Mechanical Specifications:

Case:

Solderability:

95% solder coverage, using RMA flux 63

Metal, hermetically sealed

SN/37 Pb at +245°C ±5°C

Leads:

Temperature:

Kovar, solder coated

Operating: See chart

Storage: -55° to 85°C

Seal:

Solder Seal

Vibration:

Leak Test:

5 G's sine, 10 to 500 Hz

Leak rate less than 5x10^-5

Atmosphere-cc/sec of helium

Mechanical Shock:

50 G's 5ms pulse (3 shock/plane)

Ordering Information:

Model Type 120 ___ ___ ___ ___ ___ ___ ___

Freq. in MHz

Temp. Range

Stability

Aging

1^stYear Aging Code

Temp Stability

±5 x 10^-9±1 x 10^-8±2 x 10^-8±5 x 10^-8±1 x 10^-7

±0.5 ppm

±0.3 ppm

±0.1 ppm

±0.05 ppm

Temp Range Code

0° to 50° C

0° to 70° C

-30° to 70° C C

-40° to +85° C D

Note: Not all Options are Available at all Frequencies. Consult Factory for Details.

114

400 REIMANN AVE. • SANDWICH, IL 60548

Phone: 815-786-8411 • Fax: 815-786-3600 • E-Mail: www.ctsreeves.com

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