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AJA HD10MD3 HD to SDI Down Converter User Manual — Introduction
Introduction
The AJA HD10MD3 is a miniature digital downconverter for converting HD-SDI
video to standard definition SDI and analog component composite video. The
HD10MD3 uses a full 10-bit data path and a multi-point interpolation to produce
excellent quality down-converted video. In addition, the HD10MD3 converts either
23.98/24Hz 1080p23.98sf or 1080p24sf to a 59.94 Hz output video using the
standard 3:2 pulidown technique. The output can be formatted for either 4:3 or 16:9
standard definition monitors. For 4:3 monitors, the output can be formatted for
either the Letterbox or Crop modes. Four channel AES embedded audio is passed to
the SDI output. The HD1OMD3 is also dual-rate in that SDI inputs pass to the SDI
and analog outputs.
Features
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Broadcast-Quality HD to SD down conversion
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Multi-Standard
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Dual-rate HD-SDI/SDI input
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HD-SDI/SDI outputs
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HD-SDI input: SMPTE 292/296 HD-SDI digital video
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HD-SDI outputs: Equalized and buffered copy of input
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SDI output: SMPTE 259 SDI digital video
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Analog outputs: Component or Composite video (10 bit)
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Input formats:1080i 50, 59.94, 60 Hz
1080psf: 23.98, 24, 25, 29.97, 30
1080p: 23.9B, 24, 25, 29.97, 30
1035i: 59.94, 60 Hz
720p: 50, 59.94, 60 Hz
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External Dipswitch Configuration
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Power: 5-18V unregulated
Note:
The HD10MD3 automatically switches to PAL anytime the input is 1080i 50,
1080psf 25 or 1080p25. All other frames rates have an NTSC output: 60, 59.94, 30,
29.97, 24 and 23.98.
Block Diagram
HD10MD3 HD to SDI Down Converter, Block Diagram
Component/Composite Outputs
(selected by DIP switch)
HD or SD
Input
De-serializer
Cable EQ
SDI Output
3:2 Pulldown Synchronization
Y G Composite
Pb B Y
Pr R C
DA Outputs
D/A
Conversion
H & V
Filtering and
Decimation
RP188/RP215
Timecode
Extraction
Audio
Embedding &
RP188
Timecode
Embedding
Embedded
Audio
Extraction
Delay
Serializer
HD-SDI Out 1
HD-SDI Out 2
