FREQUENCY PRODUCTS
Features:
• Internal 12 BIT Serial DAC
• Small Size
• High Stability
• Digitally Adjustable
CLOCKS
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 minimizing frequency error due to DAC reference voltage
changes.
VCXOs
Electrical Specifications:
Parameter
CRYSTALS
Model 120
DAC Controlled OCXO
CTS Reeves
Available Frequencies
Input Voltage
4.8, 32.768 MHz
+12.0 Vdc ±30%
Supply Current - Warm-up
Steady State @ -40°C
10 Watts max.
4 Watts Typical
HCMOS Compatible
Load
20 pf
Warm-up
Referenced to the frequency @ 1 hr.
Phase Noise
TCXOs
Output
(1 Hz Bandwidth)
@8.192 MHz
Frequency vs Power Supply (±5%)
Offset
1 Hz
100 Hz
1 kHz
10 kHz
Level (dBc/Hz)
-115
-140
-145
-145
±5 x 10-9
12 BIT Serial, MSB first Format
Sufficient for 15 years
±10%
400 REIMANN AVE. • SANDWICH, IL 60548
Phone: 815-786-8411 • Fax: 815-786-3600 • E-Mail: www.ctsreeves.com
OCXOs
Digital Frequency Adjust
DAC Type
Tuning Range
Tuning Linearity
±5 x 10 in 15 minutes
-8
113
