Monday, March 24, 2008

Datavideo DAC-15 Format Converter

Datavideo DAC-15 Format Converter
DV/YUV/YC/C Bi-Directional Format Converter with RS-422The Datavideo DAC-15 is a bi-directional digital to analogue format converter. It has many advanced features including RS-422 player control via DV NLE systems. The DAC-15 has a built in video processor with Colour, Contrast, Brightness and Tint (Tint NTSC only) adjustments. Another useful feature is Smart DV which will allow the DAC-15 and a second DV device to be connected to an NLE system simultaneously. Functions
The DAC-15 can convert an analogue video signal (Composite, S-Video (Y/C) or Component), and an unbalanced stereo audio signal to a DV signal, or vice versa. The built in video processor enables you to fine tune the video input to get the best possible picture quality.
You can also set the audio levels for optimum performance.
The RS-422 function of the DAC-15 allows you to convert from Linear Time Code (LTC) embedded in RS-422 to Vertical Interval Time Code (VITC) in the DV stream. This enables you to control professional VTRs such as a DigiBeta deck from your editing software (NLE system).
The DAC-15 is ideal for a post production house to use their basic, cheap DV editing system with the DAC-15 and some NLE software such as Adobe Premiere Pro or Final Cut Pro to "rough edit" the footage. The user can then create an Edit Decision List (EDL) for batch capture of the original expensive uncompressed, 2k, or 4k systems. Features
Supports both PAL (625 lines / 50Hz) and NTSC (525 lines / 60Hz) standard video standard (selectable).
Supports DV, S-Video [Y/C], Composite, and Component input and output on differnet connections.
Provides 2 x 6-pin FireWire (DV/iLink) ports, Support PAL 4:2:0 or NTSC 4:1:1 0 IRE or 7.5 IRE selectable.
Built in Comb filter. Built in video and audio level adjustments.
Auto detects video input sources.
AUDIO LOCK functions.
RS422 socket for deck control from DV NLE system (Sony control protocol and time code encoding for DV data stream).
Supports 48KHz and 32KHz DV audio encoding.
Compatible with DV (iLink), Digital 8, Video 8, Hi8, VHS, S-VHS, VHS-C and S-VHS-C format. Supports Windows ME/2000/XP & MAC Compatible with all major NLE software such as AVID Xpress DV, Final Cut Pro, Adobe Premiere, Ulead, Pinnacle, etc Smart DV (Patent Pending) allows monitoring of the video during DV to DV Capture
Smart DVAny Digital Video (DV) user will have experienced problems when connecting two DV devices to an NLE system.

Either the computer sees only one device, or it sees nothing, or worse it locks up or crashes. Datavideos Smart DV (patent pending) feature was developed to overcome this problem. Smart DV has been incorporated into the latest Datavideo DAC-10 & DAC-30 digital format converters and the TLM-70D 7" LCD DV monitor.
Customers with older versions of these models can contact their local Datavideo distributor for a firmware upgrade. Any new Datavideo items with Smart DV will carry a Smart DV sticker. With the Smart DV feature enabled the converter or monitor becomes transparent to the computer, while still transcoding the live DV stream in to analogue video.

This enables users to monitor a live digital video feed from a DV camcorder or DV deck during capture, or monitor the DV Stream from an NLE system via an ordinary video monitor, while exporting the edited video. Smart DV also allows copying to DV and analogue at the same time. Disabling the Smart DV feature (simply done using dip switch on the back of the DAC) returns the DAC to a normal bi-directional Digital Analogue Converter, which is seen by the computer as a normal DV Device. Front: Buttons & Adjustments

Input Select Buttons: Select between DV (via IEEE1394 Port), Component (YUV), S-Video (Y/C) or Composite Video (CV) Inputs.

The selected Input button will be illuminated red.
Audio Encode Buttons: Analogue Audio can be encoded as 12 Bit / 32 KHz or 16 Bit / 48 KHz.
Colour Bar Output: Set the DAC-15 to DV Input and press the 16 Bit button, a Colour Bar Output will be generated in Component, S-Video (Y/C) and Composite Video.
Video Color Correction Adjustment: Push the knob to select the parameter (Colour, Contrast, Brightness or Tint (NTSC only)) that you want to adjust; repeated pushes will toggle through the options.

Turn the button clockwise to increase the value or anti-clockwise to decrease the value, you will see the settings displayed on the LED display above. Press and hold to reset to unity.
Audio Level Adjustments: The Audio Level Adjustments allow you to independently adjust the audio level of both the left and right channels.
Audio Input Level LEDs: The Audio Input Level LEDs show the audio input levels from the incoming source. Rear: Connections

DV Input / Output Ports:: 2 x DV I/O Ports for connecting to DV Camcorders Decks and NLE systems with IEEE1394 (iLink, FireWire).

Dip Switches / Mode Select: The DAC-15 can be set to various modes using the Dip Switches, for example NTSC/PAL 0/7.5 IRE. See the manual for a full explanation.

Composite, S-Video (Y/C) and Unbalanced Audio Input / Output: for connecting analogue video devices such as VCRs, S-VHS decks, DVD Players, and monitors to the DAC-15. Both Composite and S-Video can be connected without any conflict.

Component Video (YUV or Y/R-Y/B-Y) Input / Output: Component YUV Video Input, commonly used with Betacam, DVC Pro, some DVD Players and Projectors.

Black Burst Output: Can be used as a video reference source when synchronising other devices to the DAC-15.

RS-422A Sony®™ protocol VTR Control interface: 9-pin serial port (AV/C-RS422 command conversion function) Converts DV device control signals to RS-422, to control an external VTR. Specifications


Analogue Video Input/Output: Composite x 1: 1.0 Vp-p 75 ohm (BNC)S-Video [Y/C] x 1: 75ohm (4-pin mini din)1 x Component [YUV], betacam standard [Y/R-Y/B-Y] 75ohm (3 x BNC)


Digital Video Input/Output: DV (iLink/Firewire): 25Mbps, PAL - 4:2:0, NTSC: 4:1:1 (2 x 6-pin IEEE-1394)

Black Burst Video Output: 75 ohm BNC connector

Video Frequency Response (DV input): 5.0MHz ±3dB

dG, dP: ±3%, <>

Video Signal/Noise Ratio (Decoder - DV In): >50dB

Video Signal/Noise Ratio (Encoder - Analogue In): >48dB

Audio Sampling Rate: 16bit/48KHz and 12 bit/32KHz

Audio Level: Unity ± 1.0dB

Audio THD: <0.5%

Audio Frequency Response: 20 ~ 20KHz ± 3dB

Audio Signal/Noise Ratio: >65dB

RS-422 Control: D-SUB 9-pin (female) RS-422A interfaceSupports IEEE1394 AV/C commands to RS422A commands conversionSony®™ control protocol

Video Adjustments: Colour, Contrast, Brightness and Tint (Tint NTSC only)

Power Input: DC 12V 1.5A (AC Adaptor included)

Ambient Temperature: 0°C - 55°C

Ambient Humidity: <>

Dimensions: 210 x 240 x 88 mm (WxDxH) without rubber feet

Weight: 1.8kg


Example: Betacam Deck to DV NLE System with Device Control




Example: DV NLE System / DV Camcorder / DV Deck to Betacam Deck


Example: DV NLE System with Analogue VCR S-VHS or VHS

No comments: