120CDA4.8MHZ [CTS]
HCMOS Output Clock Oscillator, 4.8MHz Nom;型号: | 120CDA4.8MHZ |
厂家: | CTS |
描述: | HCMOS Output Clock Oscillator, 4.8MHz Nom 机械 振荡器 |
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 10-8 in 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
C
PIN
1
FUNCTION
L
3
2
1
4
5
6
RF OUTPUT
2
GROUND. CASE
.800
.600
.400
3
+19 TO +26V OSC
4
CLK - CLOCK
1.600
C
L
5
SDI - SERIAL DATA IN
6
LD - LOAD STROBE
7
7
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
1st Year 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
A
B
C
D
Temp Range Code
A
X
B
X
X
C
X
X
X
D
X
X
X
X
E
X
X
X
X
0° to 50° C
0° to 70° C
A
B
-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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