Specialist suppliers of pro audio/video equipment to the film,
post-production, broadcast and music recording industries.

Rosendahl Nanosyncs HD

Direct Digital Synthesised Audio Clock and Video Sync Reference Generator
With the introduction of high definition video standards synchronisation of digital audio and video signals is becoming an even more exacting and complex task than it has been already.
£90.00 £75.00 ex VAT
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£90.00 £75.00 ex VAT

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Product Description


With the introduction of high definition video standards synchronisation of digital audio and video signals is becoming an even more exacting and complex task than it has been already. The new Nanosyncs HD Multi Standard Sync Engine is an intricate electronic gearbox which locks PAL, NTSC or slow PAL, progressive or interlaced HD Trilevelsyncs and digital audio reference signals together in any required combination.


The improved DDS audio clock synthesiser combined with a new, ultra high frequency analog PLL design results in lowest clock jitter and minimal phase drift. Word clock jitter is < 8 ps RMS within the audio spectrum (20 Hz – 20 kHz)

Jittery, interrupted or lost input signals do not affect the stability of the video and audio reference outputs.The unlock and relock procedures are processed smoothly and ensure that all output signals deliver stable reference signals in all operation conditions. A Nanosyncs HD Multi Standard Sync Engine inserted in your synchronisation chain guarantees continuous, steady sync signals

Six video outputs can be individually routed to output SD standard video sync or the HD Trilevelsync reference signal

The internal SD and HD video generators can be genlocked to external standard definition video syncs as well as to HD Trilevelsync signals with framerates at 24, 48, 25, 50, 30, 60 Hz including the respective -0.1 % pull down values. The generated output standards are selected independent of the incoming video reference format which allows genlocking different video standards together. All audio clocks can be resolved to the video section as well as to external word clock or free running LTC time code signals

A midi device class compliant USB port serves to feed a digital audio workstation with MTC and forms together with the locked audio clock signals a complete DAW synchronisation solution

The integrated LTC generator can be controlled with MMC (midi machine control) or be slaved to MTC from a host computer to provide a video phase locked time code output. The firmware of the unit can be updated using the USB port to implement upcoming standards in the new domain of high definition video and audio

 Eight word clock outputs can be configured to output base sample rates 44.1/ 48.0 kHz including the respective +/- 0.1% and 4% pull factors

Applied x2 or x4 multipliers produce accordingly 88.2 / 96.0 or 176.4 / 192 kHz. The two AES/EBU reference outputs and a SPDIF output can be configured to base (x1) or double (x2) sample rates


Additional Information


Video Sync Generators


Standard definition

  • 525/29.97 NTSC, 625/25 PAL, 625/24 and 625/23.98 slow PAL 


High definition

  • 1080psf23.98, 1080psf24, 1080i50, 1080i59.94, 1080i60, 1080p23.98, 1080p24, 1080p25, 1080p29.97, 1080p30, 1080p50, 1080p59.94, 1080p60, 720p23.98, 720p24, 720p25, 720p30, 720p50, 720p59.94, 720p60


Video Input: BNC, 75 ohms terminated, accepts SD bi-level syncs and HD tri-level syncs

Word Clock input: BNC female, 75 ohms terminated, 1,5 - 5 Vpp, 40 - 200 kHz

Time Code: LTC input, RCA/ Cinch 10k ohms, -40 to +20 dBu

LTC Output RCA/ Cinch 600 ohms, 1 Vpp

SPDIF Output: RCA 75 ohms, 0.5 Vpp, IEC 985 (Fs x1 or Fs x2)

AES/EBU Outputs: 2 x XLR 3-pin male, transformer balanced 110 ohms, 3.5 Vpp, AES-3 (Fs x1 or Fs x2)

Word Clock Outputs: 8 x BNC 75 ohms, 3.5 Vpp @ 75 ohms outputs 1-6: multipliers Fs x1, Fs x2, Fs x4 outputs 7-8: multipliers Fs x1, Fs x2, Fs x4, Fs x256 (super clock)

Video Outputs: 6 x BNC 75 ohms, AC-coupled; SD bi-level, 300 mV sync, 300 mV burst, HD tri-level +/- 300 mV sync high/ low

Audio Clock synthesiser: Fs x1, Fs x2, Fs x4, Fs x256 from sample frequencies 42.336, 44.056, 44.100, 44.144, 45.937 kHz, 46.080, 47.952, 48.000, 48.048, 50.000 kHz; lock range to external LTC is +/- 10% of nominal speed. Lock range to external word clock is 40 -200 kHz; random jitter amplitude < 180 ps in all operation modes; clock jitter < 8 ps RMS within the audio spectrum (20 Hz - 20 kHz) 

Internal Time Base: temperature compensated VCXO, +/- 0.5 ppm @ ambient temperature 15 - 30 Celsius


USB 2.0, class compliant midi device, plug and play under windows XP or Mac OSX MTC, MMC and Rosendahl SYSEX for firmware updates

Power Supply: Internal linear regulated power supply, 230 VAC / 50 Hz or 115 VAC 60 Hz, 10 W internal switchable

Dimensions and Weight

  • Dimensions: 19", 442 x 120 mm, 1U rackmount.
  • Weight: 2.5 kg


Download NanoSyncs HD User Manual