Abracon | NEL OCXO Frequency Reference Modules

NEL OCXO Frequency Reference Modules

NEL offers several families of ultra and extraordinary low-phase noise OCXO Frequency Reference Modules. These modules feature single and multioutput reference frequencies and are ideal for test and measurement, radar, and communication applications.

NEL Reference Modules
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Extraordinarily Low Phase Noise OCXO Reference Modules

Low Phase Noise Reference Modules are internally locked to precision 10MHz OCXO or can be locked to an external reference.

Extraordinarily Low Phase Noise OCXO Reference Modules
Series Size Frequency
Outputs
Tightest
Stability
Widest
Temp Range
Supply
Voltage
Outputs PN Grade dBc/Hz
@10Hz
dBc/Hz
@100Hz
dBc/Hz
@1kHz
dBc/Hz
@10kHz
Highlight
O-ESQ 10-100 119x99
Machined
Case
10MHz and
100MHz
5ppb -10°C ~ 70°C 5V Sine Wave @10MHz
@100MHz
-148
-115
-160
-145
-168
-171
-170
-185
Can lock to
External
Reference
O-ESQ 500 119x99
Machined
Case
500MHz 5ppb -10°C ~ 70°C 5V Sine Wave E2
E4
-97
-100
-127
-130
-153
-156
-171
-170
Can lock to
External
Reference

Ultra-Low Phase Noise Dual Frequency OCXO Reference Modules (DFRMs)

The Dual Frequency Reference module consists of 2 Ultra-Low Phase Noise OCXOs at 10 and 100 MHz. Both are packaged in hermetically sealed metal cans. The unit at 100 MHz is phase/frequency locked to the 10 MHz one. Lower-frequency OCXOs provide excellent frequency stability over temperature, time (aging), supply, load variations, exceptionally low phase noise close to the carrier, and short-term stability (Allan Deviation). 100 MHz OCXO provides ultra-low phase noise on the noise floor and high output power.

Ultra Low Phase Noise Dual Frequency OCXO Reference Modules
Series Size Frequency
Outputs
Tightest
Stability
Widest
Temp Range
Supply
Voltage
Outputs PN Grade dBc/Hz
@10Hz
dBc/Hz
@100Hz
dBc/Hz
@1kHz
dBc/Hz
@10kHz
Highlight
O-CDF 63x50
10 Pin
10MHz and
100MHz
10ppb -40°C ~ 75°C 5V Sinewave @10MHz
U Grade @100MHz
E Grade @ 100MHz
M Grade @100MHz
S Grade @100MHz
-147
-123
-123
-120
-122
-158
-130
-130
-133
-133
-162
-160
-160
-163
-163
-170
-172
-180
-180
-180
O-CDFE 36x27
8 Pin
10MHz and
100MHz
10ppb -40°C ~ 70°C 5V Sinewave @10 MHz
U Grade @100MHz
-145
-123
-156
-130
-162
-160
-167
-172
Can lock to
External
Reference

Ultra-Low Phase Noise Multi Frequency OCXO Reference Modules (MFRMs)

The Multiple Frequency Reference Module offers three frequency outputs. The MFRM consists of two Ultra Low Phase Noise (ULPN) OCXOs at 10 and 100 MHz, both packaged in hermetically sealed metal cans. The unit at 100 MHz is phase/frequency locked to the 10 MHz one. The output of the 100 MHz unit is then multiplied an integer number of times, up to 10, to achieve a ULPN output signal from 200 MHz to up to 1,000 MHz (1 GHz).

Ultra Low Phase Noise Multi Frequency OCXO Reference Modules
Series Size Frequency
Outputs
Tightest
Stability
Widest
Temp Range
Supply
Voltage
Outputs PN Grade dBc/Hz
@10Hz
dBc/Hz
@100Hz
dBc/Hz
@1kHz
dBc/Hz
@10kHz
O-CMR 75x51
13 Pin
10MHz, 100MHz,
200MHZ to 1GHz
10ppb -40°C ~ 85°C 5V Sinewave @10MHz
@100MHz
@1GHz
-145
-125
-105
-157
-135
-112
-162
-163
-142
-173
-175
-158

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