Crystal Oscillator

Crystal Oscillator
Model Name NH26M26LC
Oven Controlled Crystal Oscillator (OCXO)
for Fixed Communication Equipment
■ Main Application
● Base stations for Mobile communication system
● Measuring instrument
● Exchanger
● Synthesizer
● High-end router
■ Features
● Compact, with a low height.
● Excellent rise characteristics.
● Excellent phase noise characteristics. (10MHz : -151dBc/Hz at 1kHz)
● Excellent long-term frequency stability.(±50×10-9/year)
■ Specifications
Model
Item
Measurement condition
Nominal frequency (MHz)
NH26M26LC
10
Supply voltage [VCC] (V)
+5 ±5 %
at start
Power consumption (W)
Max. 3
when stable (+25 °C)
Max. 1.3
HCMOS level (VOL Max. 0.5 V, VOH Min. 4.5 V)
Output voltage
Symmetry (%)
40 to 60
at 1/2 VCC
Load impedance (pF)
15
Operating temperature range (°C)
−20 to +70
Storage temperature range (°C)
Stabilization time
Long-term frequency stability
−40 to +85
Stabilization Time (Frequency Stability) within
±50 ×10−9 after power on at +25°C ,
based on frequency after 60minutes operation.
Max. 3 minutes
Based on frequency after 72 hours operation
Max. ±2×10−9/day
Based on frequency after 72 hours operation
Max. ±50×10−9/year
Frequency/Temperature characteristics
−20 to +70 °C
Max. ±10×10−9
Frequency/Voltage coefficient
VCC +5 V ± 5 %
Max. ±3×10−9
Frequency control range
Vcont +2 ± 2 V
Min. ±1×10−6
Frequency change polarity
Positive
■ Reference Value
Phase noise (at 10 MHz)
Offset frequency
dBc/Hz
1 Hz
Typ. −100
10 Hz
Typ. −125
100 Hz
Typ. −142
1 kHz
Typ. −151
10 kHz
Typ. −155
The value of phase noise changes when the frequency changes.
■ Dimensions
■ List of Ordering Codes
mm
26 max
Pin connections
#5
19.05
11.5
0.65±0.15
GND
#3
Vcont
#4
NC
#5
VCC
NH26M26LC-10M-NSA3539A
The above frequencies are NDK’s standard frequencies.
Frequencies other than the above are available. Feel free to
contact our sales representatives.
Terminal number is not printed.
5 - Ø0.8 ± 0.1
#3
11.5
#2
OUTPUT
#2
Ordering Code
19.05
#1
STAND OFF
(GLASS)
4POINT
12.5 max
6.2±0.5
26 max
#1
Nominal
frequency
(MHz)
10
#4
Tolerance ±0.3 mm
-4-
1410B_NH26M26LC_e