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Explorer 3250HD High-Definition Interactive Set-Top
Specifications
Feature
Analog Component HDTV Outputs
Dual Audio Outputs with Composite
Video Output
DAVIC Reverse Path Data
Transmitter
MPEG-2 MP@HL Digital Video
Decompression
®
Dolby
Digital Audio and MPEG-1
Audio Support
®
PowerKEY
Conditional Access
System
®
PowerTV
Operating System with
HTML Client Engine
Enhanced Graphics Engine
Automatic Scaling of MPEG-2 Video
for IPG Window
Powerful 32-bit RISC Processors
Over 40 MB Memory
64 and 256 ITU J.83 Annex B QAM
Support
Analog and Digital Service Tuner
DAVIC Compliant Integrated Cable
Modem
Both Internal Security
Microprocessor and Smart Card Slot
®
Macrovision
Copy Protection
Support
Provides YPbPr outputs for quick and easy connection to most HDTV sets
Allows simultaneous connection to the audio inputs on the HDTV as well as
the audio and video inputs on a VCR
Allows IP-based, real-time two-way communication between the 3250HD
and the headend
Enables cable service provider to offer two-way services such as Internet
browsing, video-on-demand (VOD), subscription VOD (SVOD), e-mail, and
real-time chat
Allows decompression and presentation of audio and video
Delivers video resolutions up to 1920 x 1080
Supports leading digital audio standards
Provides digital security using an RSA encryption algorithm that
mathematically matches pairs of keys
Offers stable operating system and open Application Programming
Interfaces (APIs) to support native applications and third-party middleware
applications
Allows upgrades using a network download
Displays up to 65,000 colors simultaneously
Enables high-resolution 640 x 480 IPG graphics while simultaneously
scaling MPEG-2 video
Features a 166 MHz (166 MIPs) processor to perform tasks and applications
quickly
8 MB Flash, or 16 MB available as an option
16 MB Applications DRAM, or 32 MB available as an option
16 MB Media DRAM
4 KB NVM
Supports open standards for QAM delivery and demodulation
Allows both analog and MPEG-2 digital channels to be tuned and displayed
Provides a high-speed data forward path to the 3250HD
Provide hardware-assisted conditional access options with capability to
upgrade the security, if ever needed
Activation allows cable operators to add another layer of copy protection
software, called Macrovision, that restricts subscribers from copying
protected transmissions such as VOD and SVOD to the analog composite
outputs
Benefits
Scales MPEG-2 video for optimal viewing in
the IPG window regardless of whether the
subscriber is watching an HD or SD channel
on either a widescreen or standard 4:3 TV
(continued on page 4)
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