Solid State Logic SDI- MADI Audio De-Embedder

SDI-MADI

Cost Effective Stand Alone 3G SDI Audio De-Embedder

The SSL SDI-MADI is a cost-effective solution to the problem of connecting audio equipment to the SDI-based infrastructure found in many broadcast facilities today. Occupying only 1U of rack space, the SDI-MADI provides the interface between SDI video bitstreams and digital audio. SDI-MADI extracts up to 16 audio channels from each of the unit’s four SDI inputs to provide a total of up to 64 audio channels in both MADI (AES10id-2008) and AES3 (AES3-1992) formats. All SDI inputs independently auto-sense between 3G, HD and SD standards and are provided with loop-through connectivity for downstream equipment. With a comprehensive range of synchronising options and switchable sample rate convertors, the SDI-MADI is designed to reliably and seamlessly integrate into any broadcast environment where SDI-embedded audio channels require format conversion.

Key Features

4 x SDI inputs on 75 ohm BNC connection. 16 audio channels per input extracted from all four audio groups

Auto-detection of SD/HD/3G input format

Active loop-through of each input to 75 ohm BNC output connection

Full Dolby® E/Dolby® Digital transparency for loop through

32 x unbalanced AES3 digital audio outputs via 37 pin D-Sub

Dual 64 Ch MADI digital audio output via ST Multimode Optical and Coax

Front Panel LED status indication for PSU, SYNC, SRC and SDI Lock

Comprehensive sync options (Wordclock, AES, Black and Burst, SDI1 - 4)

Wordclock and AES sync outputs

On-board sample rate convertors (SRCs), enabled locally or remotely via GPI

Dual power supplies, with separate IEC mains connectors

Optional 19” AES Signal Breakout panel providing AES-3id outputs on 32 x BNC connectors (75 ohm)

 

Specifications

 

Video Inputs

Connector/input impedance 4 x BNC sockets, 75 ohm

Compatible formats SDI, SD/HD/3G, compliant with SMPTE 259M, 296M, 274M, 292M, 424M or 425M

Video Outputs

Connector/output impedance 4 x BNC sockets, 75 ohm

Format Active, re-clocked loop-through of SDI inputs

Audio Inputs

Format Extracted from SDI video inputs

AES3 Audio Outputs

Connector/output impedance 37-way female Dsub, 32 x 75 ohm unbalanced

Format Compliant to AES3-1992

Sampling frequency 48 kHz nominal

MADI Audio Output

Connector/output impedance (coaxial) BNC socket, 75 ohm

Connector (optical) ST Multimode

Format 64-channel, compliant with AES10id-2008

Data rate 125 Mbps ±25ppm

Synchronisation

Sample Rate Conversion SRC available on all inputs, switchable in banks of 16

Sources (External): SDI1 to 4, AES3, Video black-and-burst, Wordclock

Video sync input PAL/NTSC 50/60 Hz (SD)

Wordclock input 48 kHz ±50ppm, DC coupled, positive going pulses

AES3 input AES3 input at fs=48 kHz

Wordclock output 48 kHz nominal

AES3 output Digital audio signal compliant with AES3-1992

GPIO Port

GPIO port – connector 9-pin female Dsub

Input functions 4 x SRC select (short-to-ground)

Output functions 4 x SRC status (open-collector)

Other Control

RS-422 9-pin female Dsub – for possible future use

Ethernet For possible future use

Power Supply

Type 2 x independent switch-mode regulated, auto-ranging

Inputs 2 x 90 to 264 V AC, 50/60 Hz

Power consumption 16 W

Connectors 2 x IEC with retaining clips

Fuse data Internal fixed resettable (non-user-accessible). Use a 1 A HRC externally-fused supply

Physical

Dimensions (w x d x h) 483 x 200 x 44.5 mm (1U)

19 x 7.87 x 1.75 inches (1U)

Weight 4 kg / 8.8 lbs

Operating temperature range 0ºC to +40ºC

Relative humidity range 70% max, (non-condensing)