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The 7730DAC line of serial digital video to component analog converters are broadcast quality D to As with an extensive list of additional features. High quality digital to analog conversion of audio can be packaged with the video to create a D to A frame synchronizer with audio demux. In addition, Evertz fault monitoring processing will analyze and report video and audio problems via an On-Screen-Display, or remotely via VistaLINK® SNMP.
Features
D to A process:
- 12-bit, over sampled video DACs
- SMPTE/EBU N10, Betacam, MII and NTSC specific standards supported
- Y, Pb, Pr or G, B, R output format
- Selectable setup pedestal
- Black level and gain controls of all components
- 300mV separate composite sync output
The Features of all 7730DACs are:
- SDI 525 or 625, 270MB/s component digital video input
- One 270MB/s re-clocked SDI output
- Four output BNCs for Y, Pb, Pr or G, B, R and composite sync
- One composite analog output on BNC for monitoring and control
- One frame video synchronizer (with +S option)
- Infinitely variable output phase (27MHz clock increments)
- Freeze modes: black, freeze, pass
- Menu adjustable free running frequency
- VU/PPM bar graph level Indicators
- Decodes vertical interval time code (VITC) and "burns" the time code into the monitoring output picture
- A comprehensive on-screen display is available to configure the various features of the module
- Flexible configuration of the text and audio bar graph information displays
- An extensive list of error conditions can be monitored and fault conditions can be configured from these conditions
- On-screen messages can be triggered by the configured fault conditions
- VistaLINK® capable for remote monitoring via SNMP (using VistaLINK® PRO) when installed in 7800FR frame with a 7800FC VistaLINK® Frame Controller
The Features of "-A4" option are:
- One group (four channels) of synchronous 20-bit audio is de-multiplexed from the incoming digital video
- Two unbalanced AES audio inputs (up to 48kHz, 24 bits) on BNC
- User selects either the de-embedded audio or the input AES audio
- The selected audio is delayed equivalently to the video delay with the +S option
- Four high quality 24-bit audio channels are output (analog) as balanced on two removable barrier strips
- Low impedance outputs (66Ω)
- Analog audio output levels are adjustable
- Additional audio delay of up to five seconds
- Additional audio advance of up to one frame, depending on video delay
- Loss of video modes: pass audio, mute audio
Specifications
Serial Video Input | |
|---|---|
| Standard | SMPTE ST 259-C -525 or 625 line component |
| Number of Inputs | 1 |
| Number of Reclocked Outputs | 1 |
| Connector | BNC per IEC 61169-8 Annex A |
| Return Loss | > 15dB to 270MHz |
| Embedded Audio | SMPTE ST 272-A |
| Frequency Lock Range | ±75ppm from nominal |
Analog Video Output | |
|---|---|
| Standards | SMPTE/EBU N10, Betacam, MII and NTSC specific standards. GBR or YPbPr formats with or without setup |
| Number of Outputs | 1 |
| Connectors | 4 BNCs per IEC 61169-8 Annex A |
| Video Signal Level | 1V nominal |
| Sync Signal Level | 300mV nominal |
| Output level control range | > ±7.5% (All components) |
| Black level control range | ±10 IRE |
| Input Impedance | 75Ω |
| Return Loss | > 40dB to 10MHz |
Reference Video Input | |
|---|---|
| Standard | NTSC, SMPTE ST 170 PAL, ITU624-4 |
| Number of Inputs | 1 |
| Connector | BNC per IEC 61169-8 Annex A |
| Signal Level | 1V nominal |
| Frequency Lock Range | ±75ppm from nominal |
| Input Impedance | 75Ω or High impedance (jumper selectable) |
| Return Loss | > 35dB to 10MHz |
Video Performance | |
|---|---|
| Frequency Response | < ±0.1dB (100kHz to 4.1MHz) |
| Noise Floor | < -73dBms (15kHz to 5MHz) |
| Inter-channel Delay | < ±5ns |
| Minimum Delay | 3ms |
| Maximum Delay | 1 frame plus 3ms |
Analog Audio Outputs-A4 only | |
|---|---|
| Number of Outputs | 4 |
| Type | Balanced analog audio |
| Connector | Two 6-pin removable terminal strips |
| Output Impedance | 66Ω balanced |
| Sampling Frequency | 48kHz |
| Signal Level | 0dBFS a 12 to 25dBu (user-settable) |
| Frequency Response | < ±0.05dB (20Hz to 20kHz) |
| Dynamic Range | 24 bits when AES inputs selected, 20 bits when embedded audio selected |
| THD+N | < 0.001% (> 100dB) @ 1kHz, -1dBFS |
| Crosstalk | < -105dB (20Hz to 20kHz) |
| DC Offset | < ±30mV |
| SNR | > 110dB "A" Weighting |
| Inter-Channel Phase Error | < ±1°(20Hz to 20kHz) |
AES Audio Inputs-A4 only | |
|---|---|
| Number of Inputs | 2 |
| Input Standard | SMPTE 276M, single-ended synchronous or asynchronous PCM AES |
| Connector | BNC per IEC 61169-8 Annex A |
| Resolution | 24 bits when AES inputs selected, 20 bits when embedded audio is selected |
| Input Sampling Rate | 32kHz to 48kHz when AES inputs selected, Synchronous 48kHz when embedded audio is selected |
| Minimum I/O Delay | 3.5ms |
Electrical | |
|---|---|
| Voltage | +12V DC |
| Power | 10 watts DAC +7.5 watts (-A4 option) = 17.5 watts |
| EMI/RFI | Complies with FCC Part 15, Class A EU EMC Directive |
Physical | |
|---|---|
| Number of Slots | |
| Non-audio Versions | 1 |
| Audio versions (-A4) | 2 |
Stand Alone Enclosure | |
|---|---|
| Dimensions | 14" L x 4.5" W x 1.9" H (355mm L x 114mm W x 48mm H) |
| Weight | Approx. 1.5lbs (0.7kg) |
Ordering Information
| 7730DAC | SDI to Component Analog Video Converter |
|---|---|
| 7730DAC-A4 | SDI to Component Analog Video Converter with a four-channel Analog Audio Converter/Embedder |
Ordering Options | |
|---|---|
| Notes | • Rear plate must be specified at time of order - eg: [model]+3RU |
| +S | Frame Synchronizer |
|---|
| Rear Plate Suffix | |
|---|---|
| +SA | Standalone Enclosure Rear Plate |
| +3RU | 3RU rear plate for use with 350FR, 7700FR-C, 7800FR or 7801FR Multiframes |
Enclosures | |
|---|---|
| 350FR | Portable Multiframe which holds 7 single slot modules |
| 7700FR-C | 3RU Multiframe which holds 15 single slot modules |
| 7800FR | 3RU Multiframe which holds 15 single slot modules |
| 7801FR | 1RU Multiframe which holds up to 4 single slot or 2 dual slot modules |
| S7701FR | 7700 Series Standalone Enclosure |