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VP5513ACGGP1N Datasheet

  • VP5513ACGGP1N

  • NTSC/PAL Digital Video Encoder

  • 19頁

  • MITEL

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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
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 75鈩?loads with standard video
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
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
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.
In this master mode the horizontal and vertical sync pins
become outputs, and any control codes in the CCIR656 bit
stream are ignored.
The VP5313/VP5513 supports the insertion of teletext
data through a serial interface. An internal filter shapes the
data edges.
33
23
34
22
44
12
1
11
GP44
Fig.1 Pin connections (top view)
PIN
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
FUNCTION
VDD
PD5
PD6
PD7
CLAMP
COMPSYNC
PALID
SCSYNC
REFSQ
GND
VDD
FC2
FC1
FC0
HSYNC
VSYNC
TTXREQ
SA
TTXDATA
VDD
GND
RESET
PIN
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
FUNCTION
SCL
SDA
DACCOMP
RED/C
GREEN/Y
AVDD
AGND
AVDD
BLUE/CVBS2
CVBS1
VREF
RREF
AGND
AGND
AVDD
PD0
PD1
PD2
PD3
PD4
GND
PXCK
FEATURES
s
s
s
s
s
s
s
s
s
s
s
Converts Y, Cr, Cb data to analog RGB and composite
or S-video and composite video
Supports CCIR recommendations 601 and 656
All digital video encoding
Selectable master/slave mode for sync signals
Switchable chrominance bandwidth
CCIR 624 PAL SMPTE or 170M NTSC compatible
outputs
GENLOCK mode
I
2
C bus serial microprocessor interface
Only VP5313 supports Macrovision anti-taping
Rev. 7.01
Line 21 Closed Caption encoding
Teletext insertion, fully line programmable
APPLICATIONS
s
s
s
s
s
s
Digital Cable TV
Digital Satellite TV
Multi-media
Video games
Digital VCRs
Karaoke
ORDERING INFORMATION
VP5313A/CG/GP1N
VP5513A/CG/GP1N

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