IQSYN31
Dual 3G/HD/SD-SDI Frame Synchronizer with Embedded Audio Processing
The IQSYN31 provides frame synchronization for HD-SDI at 3 Gb/s or 1.5 Gb/s, or SD-SDI 270 Mb/s with 16-channel embedded audio processing. Enabling powerful processing features with a space-efficient two channels per card, the IQSYN31 is ideal for incoming line applications where space is at a premium. A video proc amp provides complete control over the video levels, and audio processing features include Dolby E auto-alignment, audio delay, gain, invert and channel level routing.

FEATURES
- Dual-channel 3G/HD/SD-SDI synchronizer with up to 3 frames of video delay per channel
- Processing for 16 channels of embedded audio present on each incoming SDI stream
- Standards supported:
- 3G-SDI to SMPTE ST 424/425 level A & B compatible
- HD-SDI to SMPTE ST 292/274/296
- SD-SDI to SMPTE ST 259-C
- Loop-though reference capable of detecting and referencing to a bi-level or tri-level signal and selection from either external input directly or from internal IQH3B chassis reference bus
- Precision genlock adjustment allowing you to time any SDI signal accurately
- Agile, router switching tolerant synchronizer operation
- Firewall for video and processed PCM audio to provide a continuous uninterrupted output
- Audio proc amp features including channel-level (sub-frame) routing, adjustable delay, independent
- gain, invert and mute control
- Any group of embedded audio may be passed unchanged, processed or blanked
- Embedded Dolby E support — pair routing and Dolby E header alignment
- Handles Dolby E and PCM audio present in the same group
- Able to pass all ancillary data with independent HANC and VANC blanking control
- Input loss detection — default output of black/pattern/freeze
- Can be used as a video delay, up to 3 frames per channel
- Video proc amp controls including video gain, offset and hue
- In-built test pattern and tone generators for each channel
- 16x user memories, save/recall/rename
- GV Orbit control and monitoring compatible
SPECIFICATIONS
Inputs & Outputs
Signal Inputs
SDI inputs: 1 per channel
Input 1 cable length:
- Up to 70m Belden 1694A @ 3 Gb/s
- Up to 160m Belden 1694A @ 1.5 Gb/s
- >350m Belden 1694A @ 270 Mb/s
Input 2 cable length:
- Up to 60m Belden 1694A @ 3 Gb/s
- Up to 100m Belden 1694A @ 1.5 Gb/s
- Up to 200m Belden 1694A @ 270 Mb/s
Analog reference:
- 1x analog reference with passive loop-through
- Black (HD tri-level and SD bi-level) and blackburst (SD bi-level)
- SD bi-level – RS170A
- HD tri-level – SMPTE ST 240, 274 and 296
Signal Outputs
SDI outputs: 2x per channel
Controls
Indicators
Power: OK (Green)
CPU running: OK (Green flashing)
FPGA running: OK (Green flashing)
Status:
- OK (Green)
- Warning (Yellow)
- Error (Red)
Input 1: OK (Green)
Input 2: OK (Green)
Reference lock: OK or Cross-locking (Green), Std error (Green flashing)
Genlock & Video Delay
Genlock mode: Free-run, Lock to Reference, Lock to input
Genlock H-Phase: ± 0.5H in pixel clock steps
Genlock V-Phase: ± 0.5F in 1 line steps
Video H-Delay: 0 – 1 Line in pixel clock steps
Video V-Delay: 0 – 1 Frame in 1 line steps
Video Delay Frames: 0 - 3 F
Video Controls (per Channel)
Input Standard: 1125(1080)/50P (A & B), 1125(1080)/59P (A & B), 1125(1080)/29i, 1125(1080)/25i, 750(720)/59P, 750(720)/50P, 525(480)/29i,625(576)/25i
Default Video Output
Type: Pattern, Freeze, Black
Standard: Last Known Good, 1125(1080)/50P (A & B), 1125(1080)/59P (A & B), 1125(1080)/29i, 1125(1080)/25i, 750(720)/59P, 750(720)/50P, 525(480)/29i, 625(576)/25i
Manual Freeze: On/Off
Freeze: Field/Frame
VANC data: Blank VANC
SD VANC data: Line blanking (23/336 in 625, 21,22, 283, 284 in 525)
HANC data: Blank HANC (Removes all HANC data, including audio)
Proc amp enable: On/Off
Black Level: ±100 mV in steps of 0.8 mV
Hue Adjust: ±180° in steps of 1°
Master video gain: ±6 dB in steps of 0.1 dB
Y-Gain: ±6 dB in steps of 0.1 dB
Cb/Cr Gain: ±6 dB in steps of 0.1 dB
Y/C Timing:
- ±8 pixels in 2 pixel steps (SD)
- ±16 pixels in 2 pixel steps (HD/3G)
Picture Position:
- ±8 pixels in 2 pixel steps (SD)
- ±16 pixels in 2 pixel steps (HD/3G)
Pattern On: On/Off
Pattern select: 75% Color Bars, Black
Caption On: On/Off
Edit caption: 19 characters available
Audio Controls (per Channel)
Embedder assignment
Group 1 to 4 enable: On/Off
Pair 1 to 8 source L/non-PCM: Dis-embed 1_1 to 8_2, Tone, Silence
Pair 1 to 8 source R: Dis-embed 1_1 to 8_2, Tone, Silence
Pair 1 to 8 stereo: Link channel pairs
Pair 1 to 8 polarity L/R: On/Off
Pair 1 to 8 gain L/R: +12 dB to -72 dB in 0.1 dB steps
Pair 1 to 8 non-PCM: On/Off
Processed Audio Delay Control
Coarse manual delay: Up to 1.75s in 5 ms steps
Fine manual delay: ±0.25s in 0.5 ms steps
Variable audio delay control source: Internal, Manual, RollTrack (14 to 17)
Dolby-E
Dolby-E auto alignment: On/Off
Tone
Frequency L/R: 100 Hz to 10 kHz in 100 Hz steps
Channel ident: On/Off
HANC data: Blank HANC (Removes all HANC data. Note audio removed when embedders disabled)
Audio Monitoring
Silence detect: 0 to -80dB in steps of 1dB
Signal overload detect: 0 to -80 dB in steps of 1 dB
Warning timer: 1 to 20 seconds in steps of 1 second
Other Controls
User memories: 16x Save, Recall, Rename
Memory naming: User configurable naming of memories 1 – 16
RollTrack sources: Unused, Video Delay (1&2), Audio Delay (1&2), Input Present (1&2), Input Loss (1&2), Input Select (1&2), Output Rate/Std (1&2), Output Freeze (1&2), Output Unfreeze(1&2), Output Pattern On (1&2), Output Pattern Off (1&2), Output Black On (1&2), Output Black Off (1&2), Output Caption On (1&2), Output Caption Off (1&2), Inp1 Embedded Audio (Pairs 1-8) PCM, Inp1 Embedded Audio (Pairs 1-8) Non-PCM, Inp1 Embedded Audio (Pairs 1-8) Loss, Inp1 Embedded Audio (Pairs 1-8) V Bit,
General Specifications
Electrical:
- 3 Gb/s SDI, SMPTE ST 424
- 1.5 Gb/s HD-SDI, SMPTE ST 292
- 270 Mb/s SDI, SMPTE ST 259-C/DVB-ASI
Connector/format: BNC/75Ω panel jack on standard IQ connector panel
Return loss:
- > -15 dB (270 Mb/s, 1.5 Gb/s)
- > -10 dB (3 Gb/s)
Output jitter:
- SD-SDI 0.2 UI (10 Hz) / 0.2 UI (1 kHz)
- 3G/HD-SDI 1.0 UI (10 Hz) / 0.2 UI (100 kHz)
Reference source: External – HD tri-level/SD bi-level/input video syncs
Electrical:
- Black (HD tri-level and SD bi-level) and blackburst (SD bi-level)
- SD bi-level – RS170A
- HD tri-level – SMPTE ST 240, 274 and 296
Connector/format: BNC/75Ω panel jack on standard IQ connector panel
Analog reference return loss:
- SD bi-level > 40 dB to 5.5 MHz
- HD tri-level > 35 dB to 30 MHz
Video standards:
- 1125(1080)/50p (A & B), 1125(1080)/59p (A & B)
- 750(720)/50p, 750(720)/59p
- 1125(1080)/25i, 1125(1080)/29i
- 625(576)/25i, 525(480)/29i
Minimum delay (reference lock or free run):
- SD: 67 µs
- HD: 28 µs
- 3G-A: 15 µs
- 3G-B: 25 µs
Typical delay (input lock):
- SD: 70 µs
- HD: 38 µs
- 3G-A: 19 µs
- 3G-B: 40 µs
Synchronizer hysteresis window: 5 μs
Embedded audio handling:
- HD – 24-bit synchronous 48 kHz to SMPTE ST 299
- SD – 20-bit synchronous 48 kHz to SMPTE ST 272-A
Embedded audio delay:
- Minimum (PCM): 2 ms
- Maximum (non-PCM):
- SD: 67 µs
- HD: 28 µs
- 3G-A: 15 µs
- 3G-B: 25 µs
Power Consumption
Module power consumption:
- 11W Max. (A Frames)
- 10.5 PR (B Frames)
MEDIA GALLERY


ORDERING INFORMATION
IQSYN3147-1A3
Dual-channel 3G/HD/SD-SDI synchronizer with embedded audio processing. 2 outputs per input, reference loop-through.
IQSYN3147-1B3
Dual-channel 3G/HD/SD-SDI synchronizer with embedded audio processing. 2 outputs per input, external loop-through and internal frame reference selection.
For more details on enclosure types please refer to the IQ Modular Enclosures datasheet.