The HROG-5 is a high-resolution phase and frequency offset generator.  The phase and frequency of the output signals are adjustable with respect to a 5 MHz user supplied reference.  The output phase resolution of  the  generator is 2π/232 radians or an output  time step resolution of 0.3 fs.  The output frequency resolution is 5 x 10-19.  Both phase and frequency steps are phase continuous.  

      The instrument provides two sine-wave outputs  and two pulse outputs.  The sine-wave outputs are buffered to provide greater than 80 dB of port-to-port and reverse isolation.  The outputs are at a level of +16 dBm.  The pulse outputs are derived from the sine-wave outputs by dividing by a factor of 5.0E6.  The pulse outputs can be synchronized to an external reference pulse to within 200 ns.  

      All instrument functions are displayed and controlled via the front panel LCD display and keypad.Remote control of the instrument is possible through RS-232 communications.

HROG-5 Users Manual
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FeaturesApplications
  • High isolation:  >100 dB
  • High phase resolution:  5 fs
  • Low Harmonic distortion:  -45 dBc
  • Low phase noise (1 kHz):  -165 dBc/Hz
  • Atomic frequency standards
  • Clock synchronization
  • Telecomunications
  • Time scales
Specifications
ParameterConditionsMinTypMaxUnits
Phase resolution - 2π/232 - radians
Phase offset range - infinite - -
Time offset resolution 5 MHz external reference - 0.3 - fs
Frequency resolution - 5 E-19 - -
Frequency tuning range - +/-2 E-7 - -
Mech. tuning range - +/- 1 E-6 - -
Internal oscillator aging After 30 days of operation - 1 E-10 - Per day
5 MHz output level 50 ohm load +10 +13 +17 dBm
1 PPS output level 50 ohm load 2.2 2.4 2.6 V
Output isolation Channel to channel
Reverse
-
-
80
80
-
-
dB
Phase noise L(f)
Note:lower phase noise is available
10 Hz
100 Hz
1 kHz
>10 kHz
-
-
-
-
-135
-160
-165
-165
-132
-157
-162
-163
dBc/Hz
Allan deviation Sy(t) Δf=1.0E-12
1 s
10 s
100 s
1000 s

-
-
-
-

2.1 E-13
3.2 E-14
2.0 E-14
9 E-15

-
-
-
-
-
Allan deviation Sy(t) Δf=0
1 s
10 s
100 s

-
-
-

8 E-14
4 E-14
1 E-14

-
-
-
-
Spurious - -110 -100 dBc
Harmonics - -45 -40 dBc

External reference:   5.0 MHz +/- 2.0 E-8, +10 dBm to +15 dBm
External 1PPS:          800 ns min. pulse width, TTL compatible levels
AC power:                  110-120/220-240 VAC
Rack-mount enclosure
Size: 3.5” X 16” X 19”
Weight: 20 lbs

Protected by US Patent 6,278,330

Copyright(c) 2006 SpectraDynamics, Inc. All rights reserved.
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