VP5313 Datasheet, PDF (1/19 Pages) Mitel Networks Corporation – NTSC/PAL Digital Video Encoder

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 75Ω 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.
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
APPLICATIONS
s Digital Cable TV
s Digital Satellite TV
s Multi-media
s Video games
s Digital VCRs
s Karaoke
33
34
23
22
44
12
1
11
GP44
Fig.1 Pin connections (top view)
PIN FUNCTION
1
VDD
2
PD5
3
PD6
4
PD7
5
CLAMP
6
COMPSYNC
7
PALID
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
PIN FUNCTION
23
SCL
24
SDA
25
DACCOMP
26
RED/C
27
GREEN/Y
28
AVDD
29
AGND
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
ORDERING INFORMATION
VP5313A/CG/GP1N
VP5513A/CG/GP1N