Driving the Digital Lifestyle
CVE4
DVD
Digital Camera
Digital TV
Imaging
IP Cores
Progressive Out Video Encoder
Zoran Corporation
1390 Kifer Road
Sunnyvale, CA 94086-5305
Te l 408.523.6500
Fax 408.523.6501
www.zoran.com
Product Brief
Description
Zoran's CVE4 Progressive Out Video Encoder is a silicon-efficient,
high-quality Intellectual Property Core for video IC designs requiring
the progressive scan TV output function. The CVE4 encodes YCrCb,
4:2:2 digital video into the 480p and 576p standards. All NTSC, PAL, or
SECAM TV standards for interlaced output are also supported. CVE4
supports vertical blanking interval (VBI) encoding, including closed cap-
tion, teletext, WSS and CGMS-A encoding. CVE4 also includes sup-
port for Macrovision 7.1.L1, the copy protection scheme used in DVD
players and set-top boxes. Six separate output busses for Y,
Composite, Chroma, and RGB provides for flexibility in connection and
multiplexing to DACs.
Proven in silicon and shipping in the millions, the CVE4 progressive
out video encoder greatly reduces the risk and time involved when
integrating the progressive out video encoding function into an IC.
When combined with Zoran's Frame-It-1 Video Deinterlacer, CVE4 pro-
vides an industry recognized standard for quality progressive scan out-
put. CVE4 is incorporated into Zoran's own Vaddis DVD playback ICs.
Features
• 480p and 576p progressive output supported
• Encodes 4:2:2 YCrCb into all variations of NTSC, PAL or SECAM
TV standards for interlaced output
• Simultaneous output of composite video, S-video and component
video supported
• 47-tap luma filter
• Outputs 10-bit data to DACs
• Vertical Blanking Interval (VBI) encoding support
• Closed caption, teletext, WSS & CGMS Encoding
• Uniform 54 MHz clock; fully synchronous design
• 4x oversampling of luminance and chrominance filter for interlace
mode
• Dual chroma paths for optimal output of both composite video and
S-Video component video
• CCIR 601, 604 and 656 and SMTPE 253 standards supported
• Macrovision 7.1.L1 copy protection
• 2x oversampling for progressive scan mode
• Process technology independent "softcore"
Integrated Circuit Applications
• PC video
• Digital TV
• Set top box decoders
• Any system requiring progressive TV output
Deliverables
• Compilable Verilog source code
• Bit accurate, cycle accurate C model
• Synopsis synthesis scripts
• Test input files
• Documentation
CVE4 Progressive Out Video Encoder Block Diagram
tt_req tt_data
Add VBI Pulse
Noise reduction
Y 2x 45 tap
Upsampling Filter
Y 2x 15 tap
Upsampling Filter
Add Sync Setup
(WSS/Closed
Y D/A
Y
and edge
enhancement
Caption/Teletext)
Cb 4x
Cb 2x
Composite D/A
Cr, Cb
Upsampling Filter
Upsampling Filter
Chroma Modulation
and Burst
Generation
C D/A
Cr 4x
Upsampling Filter
Cr 2x
Upsampling Filter
Hblank
vblank
SECAM Chroma
Modulation
Interlaced and
Progressive
Timing Generator
and Macrovision
Control
clk54
R/Pr
G/Y
YUV to RGB
data_write
data_read
r/w control
B/Pb
Register file
7/16/04-TS
CVE4-PB-1.0