| Main / Frame synchronizers / PDFE-3308
| PDFE-3308AA/AE/EE series SDIembedded synchronizers with audio auxiliary output |
PROFLEX™ PDFE-3308 series SDIembedded synchronizers accept SDI signals providing the synchronization the a REF black-burst input and optionally deembed audio. The audio delay follows video, audio delay and gain may be manually adjusted.
Model |
Analog audio channels |
AES/EBU audio channels |
Number of rack slots occupied |
PDFE-3308AA |
4 |
- |
2 |
PDFE-3308AE |
2 |
1 |
2 |
PDFE-3308EE |
- |
2 |
2 |
PDFE-3308 provides the PAL monitor output with a bargraph OSD four-channel audio level meter.
Features
- automatic cable equalization on SDI input
- built-in 1kHz test-tone generator
- SDI sgnal loss indication
- EDH error detection and indication (min/hour)
- embedded audio indication
- audio delay follows video
- presettable embedded and external audio gain
- user-presettable 32-TV frame audio delay
- analog, AES/EBU or combination of both audio outputs
- user-selectable audio group for deembedding
- user-selectable audio group for embedding
- RMS or quazi-peak scale of the bargraph OSD audio level meter at PAL monitor output
- 24 bits audio DAC
- output SDIembedded synchronization to REF:
- within a TV frame: ±127 TV lines
- within a TV line: ±32µs with 37ns increments
Technical specifications
- Inputs:
- SDIembedded
| connector type and input impedance |
BNC, 75 Ohm |
| cable equalization |
automatic, up to 100 meters of 8281 or similar |
- REF video
| input type |
AC |
| connector type |
BNC |
| input impedance |
>10kOhm |
| input sync pulse amplitude |
0.3±0.1V |
- Outputs:
- SDIembedded
| number of outputs |
three, reclocked |
| standard compliance |
ITU-R BT.656, embedded audio |
| output impedance, connector type |
75 Ohm, BNC |
| return loss |
better than 18dB at 270MHz |
| output amplitude |
0.8V±10% |
| audio gain adjustment range |
±6dB with 0.1dB increments |
- Audio
- Analog audio
| output type |
balanced |
| output impedance |
less than 50 Ohm |
| connector type |
DB-15 |
| audio gain adjustment range |
±6dB with 0.1dB increments |
| output level, 0dBFs |
+18dB |
| dynamic range |
better than 100dB |
| THD and noise |
less than 0.006% |
| sampling rate |
24 bits, 48kHz |
- AES/EBU
| output type |
transformer balanced |
| output impedance |
110 Ohm |
| connector type |
DB-15 |
| output amplitude |
3.0V at 110 Ohm |
| audio gain adjustment range |
±6dB with 0.1dB increments |
- PAL monitor
| output impedance, connector type |
75 Ohm, BNC |
| video DAC |
10 bits |
| output amplitude |
1.0V±2% at 75 Ohm |
| frequency response ripple |
less than 3dB up to 5.5MHz |
General description
PDFE-3308 simplified schematic
The input SDI signal is equalized, reclocked and decoded into the 10-bits 4:2:2 stream which is processed to recover video and audio. Video stream is buffered and synchronized to the REF signal. The deembedded audio is buffered and a user-controllable delay is applied. The resulting audio stream is reembedded into an output SDI. The deembedded and properly delayed audio may be selected for the output. The monitor output provides the PAL picture with the audio level meter OSD.
PDFE-3308(AA/AE/EE) rear panel view
Controls and indicators
Controls and indicators are located on the PDFE-3308 frontal panel.
Controls:
- MODE: toggles through the list of editable modes
- DOWN/UP: edit the currently selected menu entry
The simultaneous depression of the DOWN and UP buttons resets the menu entry to the factory default value.
- FREEZE – the frame freeze mode ON/OFF
Menu entry selection indicators:
- INP GROUP SEL – audio group number selection for the deembedding
- OUT GROUP SEL – audio group number selection for the embedding
- AUD SOURCE – audio input selection
- TON – 1kHz test tone ON/OFF
- VU METR – audio level meter's OSD position and ON/OFF status
- TIMING H – output SDI H-timing to the REF
- TIMING V – output SDI V-timing to the REF
- TIMING AUD DELAY – audio delay in TV frame increments
- FREEZE – lit when the frame freeze mode is enabled
- GAIN 1/2 – lit when the audio gain is being preset in the 1st channel pair
- GAIN 3/4 – lit when the audio gain is being preset in the 2nd channel pair
PDFE-3308 status indicators:
- ADVANCE – output SDI signal advance/delay status to the REF indication
- AUD DET – lit when the input SDI signal contains the embedded audio
- EDH MIN/HOUR – lit if the EDH error was detected within the last minute/hour interval
- INP – lit when the input SDI signal is detected
- REF – lit when the REF signal is present
The remote control and management from a PC
All the PROFLEX™ modules are remote controllable from a PC. This facility is available if a rack is fitted with a CPU module (ordered separately). |
