DSD4121 - Australia's First VAST Certified Set Top Box

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The DSD4121 high-definition set-top box is specifically designed for the Australian VAST service delivering industry leading quality and performance at market leading pricing.
The DSD4121 employs a new generation STi7111 microprocessor incorporating the latest secure processor technology, and is equipped with an HDMI interface, component video, stereo audio outputs with digital audio S/PDIF, and a USB 2.0 port.

Key Features

STi7111 Secure Processor Core
MPEG-2/4 HD compliant
DVB-S2 Front end
F-Type Satellite input
IRDETO secure silicon conditional access
450 MHz core processor
Over-the-Air secure software download
HDMI output
Component video output
Coaxial S/PDIF digital audio output
Optical digital audio output
Dolby digital audio
Stereo audio outputs
USB 2.0 interface
8 Day electronic program guide
Compliant with Australian VAST services

Technical Features

Frequency range
DVB- Standard
Symbol Rate ( DVB-S2 )
Symbol Rate ( DVB-S )

950 - 2150 Mhz
DVB-S2 QPSK Demodulator , 8 PSK
2 Msym/sec to 30 Msym/sec
2 Msym/sec to 45 Msym/sec

Processor Core

Host Processor
Flash Memory

STi 7111, 450 Mhz core processor
16 MBytes
128 MBytes


Video Decoder
Video Format
Video Outputs

MPEG-4 (H.264), MPEG-2 MP@HL
1080i, 720p, 576p, 576i


Audio Decoder
Dolby audio support

Mpeg 2 layer 1&2 ( Musicam ), MPEG4 AAC/AAC+
Downmix and pass through via HDMI, optical and coaxial Connectors


RF in
HD video
SD Video
Digital Audio
Analogue Audio
Serial Connector
Smart Card
Power Supply

F- Type
Composite video and Component video
Optical , Coaxial and HDMI
RCA Left & Right
USB 2.0
9 pin D-type for software upgrades
ISO 7818
Detachable fig 8 cable

Please note that the product configuration, features and technologies referred to above reflect a typical product specification, the final product may vary according to specific requirements.