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Mitel Networks Corporation - NTSC/PAL Digital Video Encoder

Numéro de référence VP5313ACG
Description NTSC/PAL Digital Video Encoder
Fabricant Mitel Networks Corporation 
Logo Mitel Networks Corporation 





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VP5313ACG fiche technique
VP5313/VP5513
NTSC/PAL Digital Video Encoder
Supersedes DS4509 1.9 September 1997 edition
DS4509 - 2.2 October 1998
The VP5313/VP5513 converts digital Y Cr Cb data into
analog PAL or NTSC composite video, and also provides
33 23
simultaneous RGB outputs. These additional converters can
optionally provide separate luma and chroma outputs plus a
further composite video channel. All outputs are capable of
driving doubly terminated 75loads with standard video
34
22
levels.
All D/A converters are to 9 bit accuracy, and are provided with
27MHz oversampled data. The latter simplifies the
requirement for external analog anti-aliasing filters, and
reduces the sinx/x distortion inherent in D/A converters.
Separate digital scaling is applied to the chroma data path in
order to make the most efficient use of the 9 bit dynamic range.
The device accepts data inputs complying with CCIR
44
12
recommendation 656. In this format 4:2:2 video is multiplexed
onto an 8 bit bus using a 27MHz clock. Active video markers
are embedded into the data stream and extracted by the
VP5313/VP5513. Optionally the user can supply separate
1 11 GP44
horizontal and vertical syncs, and colour can be genlocked to
an external subcarrier if necessary.
In an alternative operating mode the VP5313/VP5513 can
be configured as the source of sync for the rest of the system.
Fig.1 Pin connections (top view)
PIN FUNCTION
1 VDD
PIN FUNCTION
23 SCL
In this master mode the horizontal and vertical sync pins
2
PD5
24 SDA
become outputs, and any control codes in the CCIR656 bit
3
stream are ignored.
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The VP5313/VP5513 supports the insertion of teletext
data through a serial interface. An internal filter shapes the
data edges.
5
6
7
PD6
PD7
CLAMP
COMPSYNC
PALID
25 DACCOMP
26 RED/C
27 GREEN/Y
28 AVDD
29 AGND
FEATURES
s Converts Y, Cr, Cb data to analog RGB and composite
or S-video and composite video
s Supports CCIR recommendations 601 and 656
s All digital video encoding
s Selectable master/slave mode for sync signals
s Switchable chrominance bandwidth
s CCIR 624 PAL SMPTE or 170M NTSC compatible
outputs
s GENLOCK mode
s I2C bus serial microprocessor interface
s Only VP5313 supports Macrovision anti-taping
Rev. 7.01
s Line 21 Closed Caption encoding
s Teletext insertion, fully line programmable
8 SCSYNC
9 REFSQ
10 GND
11 VDD
12 FC2
13 FC1
14 FC0
15 HSYNC
16 VSYNC
17 TTXREQ
18 SA
19 TTXDATA
20 VDD
21 GND
22 RESET
30 AVDD
31 BLUE/CVBS2
32 CVBS1
33 VREF
34 RREF
35 AGND
36 AGND
37 AVDD
38 PD0
39 PD1
40 PD2
41 PD3
42 PD4
43 GND
44 PXCK
APPLICATIONS
s Digital Cable TV
s Digital Satellite TV
s Multi-media
s Video games
s Digital VCRs
s Karaoke
ORDERING INFORMATION
VP5313A/CG/GP1N
VP5513A/CG/GP1N

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