HROG-5

PHASE AND FREQUENCY OFFSET GENERATOR

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/2 32 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.

  • Features
  • Applications
  • Specifications
  • Options
  • High frequency resolution: 5 E-19
  • High phase resolution: 5 fs
  • Low harmonic distortion: -45 dBc
  • Low phase noise (1 kHz) : -165 dBc/Hz
  • High isolation: > 80 dB
  • Atomic frequency standards
  • Clock synchronization
  • Time-scales
  • Clock steering
  • Frequency offset generation

PARAMETER

CONDITIONS

TYP

UNITS

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

-

Int. oscillator aging

after 30 days of operation

1 E-10

Per day

5 MHz output level

50 ohm load

+13

dBm

1PPS output level

50 ohm load

2.4

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

 

dBc/Hz

 

Allan deviation sy(t)

 

∆f = 1.0 E-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)

 

∆f = 0

1 s

10 s

100 s

 

8 E-14

4 E-14

1 E-14

-

Spurious

 

-110

dBc

Harmonics

 

-45

dBc

 

Product NameDC OperationAC Operation
HROG-5
HROG-5-DC
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