Programmable Frequency Out [1204-13, -2F, -30]; Programmable Frequency Out - Spectracom SecureSync User Reference Manual

5.2.5

Programmable Frequency Out [1204-13, -2F, -30]

Programmable Frequency Output option modules provide output square waves at programmable
pulse rates, or sine waves at programmable frequencies. The output frequency, which is
adjustable via the SecureSync Web UI, is locked to the SecureSync system-disciplined oscillator.
These option cards can be used for a variety of applications requiring programmable frequency out-
puts. The RS-485 model of this card can be operated as an N.8 frequency synthesizer.
Depending on your card model number, the outputs are available in different formats:
Each output can be phase-offset between 0-360° in 0.1°-increments.
5.2.5.1 Programmable Frequency Card 1204-13 (Sine Wave, BNC): Specifications
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5 SecureSync User Reference Guide Rev. 18
RS-485 on a pluggable terminal block
TTL square wave on BNC, or
Sine wave on BNC
Outputs : (4) independently programmable sine wave outputs
Signal Type : +13 dBm
Wave Form : sine
Connector : BNC
Output Load Impedance : 50 Ω
Output Pulse/Frequency Rates : 1Hz to 25 MHz in 0.1-Hz increments
Accuracy : Function of input synchronization source (GPS, IRIG, 1 PPS, etc.)
Synchronization : Output frequency locked to SecureSync disciplined 10 MHz
Jitter , cycle-to-cycle: n/a
Phase Noise :
-120 dBc/Hz @ 1kHz offset
-130 dBc/Hz @ 10-kHz offset
-140 dBc/Hz @ 100-kHz offset
Harmonics : <-30 dBc
Spurious : <-60 dBc
Maximum Number of Cards : 6
Ordering Information : 1204-13, Programmable Frequency Card, sine wave, BNC
5.2 Time and Frequency Option Cards
313